diff options
| author | David Howells | 2018-03-08 09:48:46 +0000 |
|---|---|---|
| committer | Arnd Bergmann | 2018-03-09 23:19:56 +0100 |
| commit | 739d875dd6982618020d30f58f8acf10f6076e6d (patch) | |
| tree | 13deb11d5b2078e49d4e5b6175e5846a22a04b95 /arch/mn10300 | |
| parent | b67aea2bbab780e412b8af3386cc9f78f61a4cac (diff) | |
mn10300: Remove the architecture
Remove the MN10300 arch as the hardware is defunct.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Masahiro Yamada <yamada.masahiro@socionext.com>
cc: linux-am33-list@redhat.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/mn10300')
274 files changed, 0 insertions, 33860 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig deleted file mode 100644 index e9d8d60bd28b..000000000000 --- a/arch/mn10300/Kconfig +++ /dev/null @@ -1,499 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -config MN10300 - def_bool y - select HAVE_EXIT_THREAD - select HAVE_OPROFILE - select HAVE_UID16 - select GENERIC_IRQ_SHOW - select ARCH_WANT_IPC_PARSE_VERSION - select HAVE_ARCH_TRACEHOOK - select HAVE_ARCH_KGDB - select GENERIC_ATOMIC64 - select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER - select VIRT_TO_BUS - select GENERIC_CLOCKEVENTS - select MODULES_USE_ELF_RELA - select OLD_SIGSUSPEND3 - select OLD_SIGACTION - select HAVE_DEBUG_STACKOVERFLOW - select ARCH_NO_COHERENT_DMA_MMAP - -config AM33_2 - def_bool n - -config AM33_3 - def_bool n - -config AM34_2 - def_bool n - select MN10300_HAS_ATOMIC_OPS_UNIT - select MN10300_HAS_CACHE_SNOOP - -config ERRATUM_NEED_TO_RELOAD_MMUCTR - def_bool y if AM33_3 || AM34_2 - -config MMU - def_bool y - -config HIGHMEM - def_bool n - -config NUMA - def_bool n - -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - bool - -config GENERIC_CALIBRATE_DELAY - def_bool y - -config GENERIC_HWEIGHT - def_bool y - -config GENERIC_BUG - def_bool y - depends on BUG - -config QUICKLIST - def_bool y - -config ARCH_HAS_ILOG2_U32 - def_bool y - -config HOTPLUG_CPU - def_bool n - -source "init/Kconfig" - -source "kernel/Kconfig.freezer" - - -menu "Panasonic MN10300 system setup" - -choice - prompt "Unit type" - default MN10300_UNIT_ASB2303 - help - This option specifies board for which the kernel will be - compiled. It affects the external peripherals catered for. - -config MN10300_UNIT_ASB2303 - bool "ASB2303" - -config MN10300_UNIT_ASB2305 - bool "ASB2305" - -config MN10300_UNIT_ASB2364 - bool "ASB2364" - select SMSC911X_ARCH_HOOKS if SMSC911X - -endchoice - -choice - prompt "Processor support" - default MN10300_PROC_MN103E010 - help - This option specifies the processor for which the kernel will be - compiled. It affects the on-chip peripherals catered for. - -config MN10300_PROC_MN103E010 - bool "MN103E010" - depends on MN10300_UNIT_ASB2303 || MN10300_UNIT_ASB2305 - select AM33_2 - select MN10300_PROC_HAS_TTYSM0 - select MN10300_PROC_HAS_TTYSM1 - select MN10300_PROC_HAS_TTYSM2 - -config MN10300_PROC_MN2WS0050 - bool "MN2WS0050" - depends on MN10300_UNIT_ASB2364 - select AM34_2 - select MN10300_PROC_HAS_TTYSM0 - select MN10300_PROC_HAS_TTYSM1 - select MN10300_PROC_HAS_TTYSM2 - -endchoice - -config MN10300_HAS_ATOMIC_OPS_UNIT - def_bool n - help - This should be enabled if the processor has an atomic ops unit - capable of doing LL/SC equivalent operations. - -config FPU - bool "FPU present" - default y - depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050 - -config LAZY_SAVE_FPU - bool "Save FPU state lazily" - default y - depends on FPU && !SMP - help - Enable this to be lazy in the saving of the FPU state to the owning - task's thread struct. This is useful if most tasks on the system - don't use the FPU as only those tasks that use it will pass it - between them, and the state needn't be saved for a task that isn't - using it. - - This can't be so easily used on SMP as the process that owns the FPU - state on a CPU may be currently running on another CPU, so for the - moment, it is disabled. - -source "arch/mn10300/mm/Kconfig.cache" - -config MN10300_TLB_USE_PIDR - def_bool y - -menu "Memory layout options" - -config KERNEL_RAM_BASE_ADDRESS - hex "Base address of kernel RAM" - default "0x90000000" - -config INTERRUPT_VECTOR_BASE - hex "Base address of vector table" - default "0x90000000" - help - The base address of the vector table will be programmed into - the TBR register. It must be on 16MiB address boundary. - -config KERNEL_TEXT_ADDRESS - hex "Base address of kernel" - default "0x90001000" - -config KERNEL_ZIMAGE_BASE_ADDRESS - hex "Base address of compressed vmlinux image" - default "0x50700000" - -config BOOT_STACK_OFFSET - hex - default "0xF00" if SMP - default "0xFF0" if !SMP - -config BOOT_STACK_SIZE - hex - depends on SMP - default "0x100" -endmenu - -config SMP - bool "Symmetric multi-processing support" - default y - depends on MN10300_PROC_MN2WS0050 - ---help--- - This enables support for systems with more than one CPU. If you have - a system with only one CPU, say N. If you have a system with more - than one CPU, say Y. - - If you say N here, the kernel will run on uni- and multiprocessor - machines, but will use only one CPU of a multiprocessor machine. If - you say Y here, the kernel will run on many, but not all, - uniprocessor machines. On a uniprocessor machine, the kernel - will run faster if you say N here. - - See also <file:Documentation/x86/i386/IO-APIC.txt>, - <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at - <http://www.tldp.org/docs.html#howto>. - - If you don't know what to do here, say N. - -config NR_CPUS - int - depends on SMP - default "2" - -source "kernel/Kconfig.preempt" - -config MN10300_CURRENT_IN_E2 - bool "Hold current task address in E2 register" - depends on !SMP - default y - help - This option removes the E2/R2 register from the set available to gcc - for normal use and instead uses it to store the address of the - current process's task_struct whilst in the kernel. - - This means the kernel doesn't need to calculate the address each time - "current" is used (take SP, AND with mask and dereference pointer - just to get the address), and instead can just use E2+offset - addressing each time. - - This has no effect on userspace. - -config MN10300_USING_JTAG - bool "Using JTAG to debug kernel" - default y - help - This options indicates that JTAG will be used to debug the kernel. It - suppresses the use of certain hardware debugging features, such as - single-stepping, which are taken over completely by the JTAG unit. - -source "kernel/Kconfig.hz" - -config MN10300_RTC - bool "Using MN10300 RTC" - depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050 - select RTC_CLASS - select RTC_DRV_CMOS - select RTC_SYSTOHC - default n - help - This option enables support for the RTC, thus enabling time to be - tracked, even when system is powered down. This is available on-chip - on the MN103E010. - -config MN10300_WD_TIMER - bool "Using MN10300 watchdog timer" - default y - help - This options indicates that the watchdog timer will be used. - -config PCI - bool "Use PCI" - depends on MN10300_UNIT_ASB2305 - default y - select GENERIC_PCI_IOMAP - help - Some systems (such as the ASB2305) have PCI onboard. If you have one - of these boards and you wish to use the PCI facilities, say Y here. - - The PCI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, contains valuable - information about which PCI hardware does work under Linux and which - doesn't. - -source "drivers/pci/Kconfig" - -source "drivers/pcmcia/Kconfig" - -menu "MN10300 internal serial options" - -config MN10300_PROC_HAS_TTYSM0 - bool - default n - -config MN10300_PROC_HAS_TTYSM1 - bool - default n - -config MN10300_PROC_HAS_TTYSM2 - bool - default n - -config MN10300_TTYSM - bool "Support for ttySM serial ports" - depends on MN10300 - default y - select SERIAL_CORE - help - This option enables support for the on-chip serial ports that the - MN10300 has available. - -config MN10300_TTYSM_CONSOLE - bool "Support for console on ttySM serial ports" - depends on MN10300_TTYSM - select SERIAL_CORE_CONSOLE - help - This option enables support for a console on the on-chip serial ports - that the MN10300 has available. - -# -# /dev/ttySM0 -# -config MN10300_TTYSM0 - bool "Enable SIF0 (/dev/ttySM0)" - depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM0 - help - Enable access to SIF0 through /dev/ttySM0 or gdb-stub - -choice - prompt "Select the timer to supply the clock for SIF0" - default MN10300_TTYSM0_TIMER8 - depends on MN10300_TTYSM0 - -config MN10300_TTYSM0_TIMER8 - bool "Use timer 8 (16-bit)" - -config MN10300_TTYSM0_TIMER2 - bool "Use timer 2 (8-bit)" - -endchoice - -# -# /dev/ttySM1 -# -config MN10300_TTYSM1 - bool "Enable SIF1 (/dev/ttySM1)" - depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM1 - help - Enable access to SIF1 through /dev/ttySM1 or gdb-stub - -choice - prompt "Select the timer to supply the clock for SIF1" - default MN10300_TTYSM1_TIMER12 \ - if !(AM33_2 || AM33_3) - default MN10300_TTYSM1_TIMER9 \ - if AM33_2 || AM33_3 - depends on MN10300_TTYSM1 - -config MN10300_TTYSM1_TIMER12 - bool "Use timer 12 (16-bit)" - depends on !(AM33_2 || AM33_3) - -config MN10300_TTYSM1_TIMER9 - bool "Use timer 9 (16-bit)" - depends on AM33_2 || AM33_3 - -config MN10300_TTYSM1_TIMER3 - bool "Use timer 3 (8-bit)" - depends on AM33_2 || AM33_3 - -endchoice - -# -# /dev/ttySM2 -# -config MN10300_TTYSM2 - bool "Enable SIF2 (/dev/ttySM2)" - depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM2 - help - Enable access to SIF2 through /dev/ttySM2 or gdb-stub - -choice - prompt "Select the timer to supply the clock for SIF2" - default MN10300_TTYSM2_TIMER3 \ - if !(AM33_2 || AM33_3) - default MN10300_TTYSM2_TIMER10 \ - if AM33_2 || AM33_3 - depends on MN10300_TTYSM2 - -config MN10300_TTYSM2_TIMER9 - bool "Use timer 9 (16-bit)" - depends on !(AM33_2 || AM33_3) - -config MN10300_TTYSM2_TIMER1 - bool "Use timer 1 (8-bit)" - depends on !(AM33_2 || AM33_3) - -config MN10300_TTYSM2_TIMER3 - bool "Use timer 3 (8-bit)" - depends on !(AM33_2 || AM33_3) - -config MN10300_TTYSM2_TIMER10 - bool "Use timer 10 (16-bit)" - depends on AM33_2 || AM33_3 - -endchoice - -config MN10300_TTYSM2_CTS - bool "Enable the use of the CTS line /dev/ttySM2" - depends on MN10300_TTYSM2 && AM33_2 - -endmenu - -menu "Interrupt request priority options" - -comment "[!] NOTE: A lower number/level indicates a higher priority (0 is highest, 6 is lowest)" - -comment "____Non-maskable interrupt levels____" -comment "The following must be set to a higher priority than local_irq_disable() and on-chip serial" - -config DEBUGGER_IRQ_LEVEL - int "DEBUGGER interrupt priority" - depends on KERNEL_DEBUGGER - range 0 1 if LINUX_CLI_LEVEL = 2 - range 0 2 if LINUX_CLI_LEVEL = 3 - range 0 3 if LINUX_CLI_LEVEL = 4 - range 0 4 if LINUX_CLI_LEVEL = 5 - range 0 5 if LINUX_CLI_LEVEL = 6 - default 0 - -comment "The following must be set to a higher priority than local_irq_disable()" - -config MN10300_SERIAL_IRQ_LEVEL - int "MN10300 on-chip serial interrupt priority" - depends on MN10300_TTYSM - range 1 1 if LINUX_CLI_LEVEL = 2 - range 1 2 if LINUX_CLI_LEVEL = 3 - range 1 3 if LINUX_CLI_LEVEL = 4 - range 1 4 if LINUX_CLI_LEVEL = 5 - range 1 5 if LINUX_CLI_LEVEL = 6 - default 1 - -comment "-" -comment "____Maskable interrupt levels____" - -config LINUX_CLI_LEVEL - int "The highest interrupt priority excluded by local_irq_disable() (2-6)" - range 2 6 - default 2 - help - local_irq_disable() doesn't actually disable maskable interrupts - - what it does is restrict the levels of interrupt which are permitted - (a lower level indicates a higher priority) by lowering the value in - EPSW.IM from 7. Any interrupt is permitted for which the level is - lower than EPSW.IM. - - Certain interrupts, such as DEBUGGER and virtual MN10300 on-chip - serial DMA interrupts are allowed to interrupt normal disabled - sections. - -comment "The following must be set to a equal to or lower priority than LINUX_CLI_LEVEL" - -config TIMER_IRQ_LEVEL - int "Kernel timer interrupt priority" - range LINUX_CLI_LEVEL 6 - default 4 - -config PCI_IRQ_LEVEL - int "PCI interrupt priority" - depends on PCI - range LINUX_CLI_LEVEL 6 - default 5 - -config ETHERNET_IRQ_LEVEL - int "Ethernet interrupt priority" - depends on SMC91X || SMC911X || SMSC911X - range LINUX_CLI_LEVEL 6 - default 6 - -config EXT_SERIAL_IRQ_LEVEL - int "External serial port interrupt priority" - depends on SERIAL_8250 - range LINUX_CLI_LEVEL 6 - default 6 - -endmenu - -source "mm/Kconfig" - -menu "Power management options" -source kernel/power/Kconfig -endmenu - -endmenu - - -menu "Executable formats" - -source "fs/Kconfig.binfmt" - -endmenu - -source "net/Kconfig" - -source "drivers/Kconfig" - -source "fs/Kconfig" - -source "arch/mn10300/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug deleted file mode 100644 index 37ada651f756..000000000000 --- a/arch/mn10300/Kconfig.debug +++ /dev/null @@ -1,156 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -menu "Kernel hacking" - -source "lib/Kconfig.debug" - -config DEBUG_DECOMPRESS_KERNEL - bool "Using serial port during decompressing kernel" - depends on DEBUG_KERNEL - default n - help - If you say Y here you will confirm the start and the end of - decompressing Linux seeing "Uncompressing Linux... " and - "Ok, booting the kernel.\n" on console. - -config TEST_MISALIGNMENT_HANDLER - bool "Run tests on the misalignment handler" - depends on DEBUG_KERNEL - default n - help - If you say Y here the kernel will execute a list of misaligned memory - accesses to make sure the misalignment handler deals them with - correctly. If it does not, the kernel will throw a BUG. - -config KPROBES - bool "Kprobes" - depends on DEBUG_KERNEL - help - Kprobes allows you to trap at almost any kernel address and - execute a callback function. register_kprobe() establishes - a probepoint and specifies the callback. Kprobes is useful - for kernel debugging, non-intrusive instrumentation and testing. - If in doubt, say "N". - -config GDBSTUB - bool "Remote GDB kernel debugging" - depends on DEBUG_KERNEL && DEPRECATED - select DEBUG_INFO - select FRAME_POINTER - help - If you say Y here, it will be possible to remotely debug the kernel - using gdb. This enlarges your kernel ELF image disk size by several - megabytes and requires a machine with more than 16 MB, better 32 MB - RAM to avoid excessive linking time. This is only useful for kernel - hackers. If unsure, say N. - - This is deprecated in favour of KGDB and will be removed in a later - version. - -config GDBSTUB_IMMEDIATE - bool "Break into GDB stub immediately" - depends on GDBSTUB - help - If you say Y here, GDB stub will break into the program as soon as - possible, leaving the program counter at the beginning of - start_kernel() in init/main.c. - -config GDBSTUB_ALLOW_SINGLE_STEP - bool "Allow software single-stepping in GDB stub" - depends on GDBSTUB && !SMP && !PREEMPT - help - Allow GDB stub to perform software single-stepping through the - kernel. This doesn't work very well on SMP or preemptible kernels as - it uses temporary breakpoints to emulate single-stepping. - -config GDB_CONSOLE - bool "Console output to GDB" - depends on GDBSTUB - help - If you are using GDB for remote debugging over a serial port and - would like kernel messages to be formatted into GDB $O packets so - that GDB prints them as program output, say 'Y'. - -config GDBSTUB_DEBUGGING - bool "Debug GDB stub by messages to serial port" - depends on GDBSTUB - help - This causes debugging messages to be displayed at various points - during execution of the GDB stub routines. Such messages will be - displayed on ttyS0 if that isn't the GDB stub's port, or ttySM0 - otherwise. - -config GDBSTUB_DEBUG_ENTRY - bool "Debug GDB stub entry" - depends on GDBSTUB_DEBUGGING - help - This option causes information to be displayed about entry to or exit - from the main GDB stub routine. - -config GDBSTUB_DEBUG_PROTOCOL - bool "Debug GDB stub protocol" - depends on GDBSTUB_DEBUGGING - help - This option causes information to be displayed about the GDB remote - protocol messages generated exchanged with GDB. - -config GDBSTUB_DEBUG_IO - bool "Debug GDB stub I/O" - depends on GDBSTUB_DEBUGGING - help - This option causes information to be displayed about GDB stub's - low-level I/O. - -config GDBSTUB_DEBUG_BREAKPOINT - bool "Debug GDB stub breakpoint management" - depends on GDBSTUB_DEBUGGING - help - This option causes information to be displayed about GDB stub's - breakpoint management. - -choice - prompt "GDB stub port" - default GDBSTUB_ON_TTYSM0 - depends on GDBSTUB - help - Select the serial port used for GDB-stub. - -config GDBSTUB_ON_TTYSM0 - bool "/dev/ttySM0 [SIF0]" - depends on MN10300_TTYSM0 - select GDBSTUB_ON_TTYSMx - -config GDBSTUB_ON_TTYSM1 - bool "/dev/ttySM1 [SIF1]" - depends on MN10300_TTYSM1 - select GDBSTUB_ON_TTYSMx - -config GDBSTUB_ON_TTYSM2 - bool "/dev/ttySM2 [SIF2]" - depends on MN10300_TTYSM2 - select GDBSTUB_ON_TTYSMx - -config GDBSTUB_ON_TTYS0 - bool "/dev/ttyS0" - select GDBSTUB_ON_TTYSx - -config GDBSTUB_ON_TTYS1 - bool "/dev/ttyS1" - select GDBSTUB_ON_TTYSx - -endchoice - -config GDBSTUB_ON_TTYSMx - bool - depends on GDBSTUB_ON_TTYSM0 || GDBSTUB_ON_TTYSM1 || GDBSTUB_ON_TTYSM2 - default y - -config GDBSTUB_ON_TTYSx - bool - depends on GDBSTUB_ON_TTYS0 || GDBSTUB_ON_TTYS1 - default y - -endmenu - -config KERNEL_DEBUGGER - def_bool y - depends on GDBSTUB || KGDB diff --git a/arch/mn10300/Makefile b/arch/mn10300/Makefile deleted file mode 100644 index 3f1ea5ddc402..000000000000 --- a/arch/mn10300/Makefile +++ /dev/null @@ -1,99 +0,0 @@ -############################################################################### -# -# MN10300 Kernel makefile system specifications -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Modified by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### - -KBUILD_DEFCONFIG := asb2303_defconfig - -CCSPECS := $(shell $(CC) -v 2>&1 | grep "^Reading specs from " | head -1 | cut -c20-) -CCDIR := $(strip $(patsubst %/specs,%,$(CCSPECS))) -KBUILD_CPPFLAGS += -nostdinc -I$(CCDIR)/include - -LDFLAGS := -OBJCOPYFLAGS := -O binary -R .note -R .comment -R .GCC-command-line -R .note.gnu.build-id -S -#LDFLAGS_vmlinux := -Map linkmap.txt -CHECKFLAGS += - -PROCESSOR := unset -UNIT := unset - -KBUILD_CFLAGS += -mam33 -DCPU=AM33 $(call cc-option,-mmem-funcs,) -KBUILD_AFLAGS += -mam33 -DCPU=AM33 - -ifeq ($(CONFIG_MN10300_CURRENT_IN_E2),y) -KBUILD_CFLAGS += -ffixed-e2 -fcall-saved-e5 -endif - -ifeq ($(CONFIG_MN10300_PROC_MN103E010),y) -PROCESSOR := mn103e010 -endif -ifeq ($(CONFIG_MN10300_PROC_MN2WS0050),y) -PROCESSOR := mn2ws0050 -endif - -ifeq ($(CONFIG_MN10300_UNIT_ASB2303),y) -UNIT := asb2303 -endif -ifeq ($(CONFIG_MN10300_UNIT_ASB2305),y) -UNIT := asb2305 -endif -ifeq ($(CONFIG_MN10300_UNIT_ASB2364),y) -UNIT := asb2364 -endif - - -head-y := arch/mn10300/kernel/head.o - -core-y += arch/mn10300/kernel/ arch/mn10300/mm/ - -ifneq ($(PROCESSOR),unset) -core-y += arch/mn10300/proc-$(PROCESSOR)/ -endif -ifneq ($(UNIT),unset) -core-y += arch/mn10300/unit-$(UNIT)/ -endif -libs-y += arch/mn10300/lib/ - -drivers-$(CONFIG_OPROFILE) += arch/mn10300/oprofile/ - -boot := arch/mn10300/boot - -.PHONY: zImage - -KBUILD_IMAGE := $(boot)/zImage -CLEAN_FILES += $(boot)/zImage -CLEAN_FILES += $(boot)/compressed/vmlinux -CLEAN_FILES += $(boot)/compressed/vmlinux.bin -CLEAN_FILES += $(boot)/compressed/vmlinux.bin.gz - -zImage: vmlinux - $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ - -all: zImage - -bootstrap: - $(Q)$(MAKEBOOT) bootstrap - -archclean: - $(Q)$(MAKE) $(clean)=arch/mn10300/proc-mn103e010 - $(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2303 - $(Q)$(MAKE) $(clean)=arch/mn10300/unit-asb2305 - -define archhelp - echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' -endef - -# -# include the appropriate processor- and unit-specific headers -# -KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/proc-$(PROCESSOR)/include -KBUILD_CPPFLAGS += -I$(srctree)/arch/mn10300/unit-$(UNIT)/include diff --git a/arch/mn10300/boot/.gitignore b/arch/mn10300/boot/.gitignore deleted file mode 100644 index b6718de23693..000000000000 --- a/arch/mn10300/boot/.gitignore +++ /dev/null @@ -1 +0,0 @@ -zImage diff --git a/arch/mn10300/boot/Makefile b/arch/mn10300/boot/Makefile deleted file mode 100644 index 36c9caf8ea0a..000000000000 --- a/arch/mn10300/boot/Makefile +++ /dev/null @@ -1,28 +0,0 @@ -# MN10300 kernel compressor and wrapper -# -# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# - -targets := vmlinux.bin zImage - -subdir- := compressed - -# --------------------------------------------------------------------------- - - -$(obj)/zImage: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - @echo 'Kernel: $@ is ready' - -$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - -$(obj)/compressed/vmlinux: FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ diff --git a/arch/mn10300/boot/compressed/Makefile b/arch/mn10300/boot/compressed/Makefile deleted file mode 100644 index 9b9a48fc8e53..000000000000 --- a/arch/mn10300/boot/compressed/Makefile +++ /dev/null @@ -1,22 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Create a compressed vmlinux image from the original vmlinux -# - -targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o - -LDFLAGS_vmlinux := -Ttext $(CONFIG_KERNEL_ZIMAGE_BASE_ADDRESS) -e startup_32 - -$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE - $(call if_changed,ld) - -$(obj)/vmlinux.bin: vmlinux FORCE - $(call if_changed,objcopy) - -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE - $(call if_changed,gzip) - -LDFLAGS_piggy.o := -r --format binary --oformat elf32-am33lin -T - -$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE - $(call if_changed,ld) diff --git a/arch/mn10300/boot/compressed/head.S b/arch/mn10300/boot/compressed/head.S deleted file mode 100644 index 7b50345b9e84..000000000000 --- a/arch/mn10300/boot/compressed/head.S +++ /dev/null @@ -1,151 +0,0 @@ -/* Boot entry point for a compressed MN10300 kernel - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - .section .text - -#define DEBUG - -#include <linux/linkage.h> -#include <asm/cpu-regs.h> -#include <asm/cache.h> -#ifdef CONFIG_SMP -#include <proc/smp-regs.h> -#endif - - .globl startup_32 -startup_32: -#ifdef CONFIG_SMP - # - # Secondary CPUs jump directly to the kernel entry point - # - # Must save primary CPU's D0-D2 registers as they hold boot parameters - # - mov (CPUID), d3 - and CPUID_MASK,d3 - beq startup_primary - mov CONFIG_KERNEL_TEXT_ADDRESS,a0 - jmp (a0) - -startup_primary: -#endif /* CONFIG_SMP */ - - # first save parameters from bootloader - mov param_save_area,a0 - mov d0,(a0) - mov d1,(4,a0) - mov d2,(8,a0) - - mov sp,a3 - mov decomp_stack+0x2000-4,a0 - mov a0,sp - - # invalidate and enable both of the caches - mov CHCTR,a0 - clr d0 - movhu d0,(a0) # turn off first - mov CHCTR_ICINV|CHCTR_DCINV,d0 - movhu d0,(a0) - setlb - mov (a0),d0 - btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy - lne - -#ifdef CONFIG_MN10300_CACHE_ENABLED -#ifdef CONFIG_MN10300_CACHE_WBACK - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0 -#else - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0 -#endif /* WBACK */ - movhu d0,(a0) # enable -#endif /* !ENABLED */ - - # clear the BSS area - mov __bss_start,a0 - mov _end,a1 - clr d0 -bssclear: - cmp a1,a0 - bge bssclear_end - movbu d0,(a0) - inc a0 - bra bssclear -bssclear_end: - - # decompress the kernel - call decompress_kernel[],0 -#ifdef CONFIG_MN10300_CACHE_WBACK - call mn10300_dcache_flush_inv[],0 -#endif - - # disable caches again - mov CHCTR,a0 - clr d0 - movhu d0,(a0) - setlb - mov (a0),d0 - btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy - lne - - mov param_save_area,a0 - mov (a0),d0 - mov (4,a0),d1 - mov (8,a0),d2 - - # jump to the kernel proper entry point - mov a3,sp - mov CONFIG_KERNEL_TEXT_ADDRESS,a0 - jmp (a0) - - -############################################################################### -# -# Cache flush routines -# -############################################################################### -#ifdef CONFIG_MN10300_CACHE_WBACK -mn10300_dcache_flush_inv: - movhu (CHCTR),d0 - btst CHCTR_DCEN,d0 - beq mn10300_dcache_flush_inv_end - - mov L1_CACHE_NENTRIES,d1 - clr a1 - -mn10300_dcache_flush_inv_loop: - mov (DCACHE_PURGE_WAY0(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY1(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY2(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY3(0),a1),d0 # unconditional purge - - add L1_CACHE_BYTES,a1 - add -1,d1 - bne mn10300_dcache_flush_inv_loop - -mn10300_dcache_flush_inv_end: - ret [],0 -#endif /* CONFIG_MN10300_CACHE_WBACK */ - - -############################################################################### -# -# Data areas -# -############################################################################### - .data - .align 4 -param_save_area: - .rept 3 - .word 0 - .endr - - .section .bss - .align 4 -decomp_stack: - .space 0x2000 diff --git a/arch/mn10300/boot/compressed/misc.c b/arch/mn10300/boot/compressed/misc.c deleted file mode 100644 index 42cbd77bd439..000000000000 --- a/arch/mn10300/boot/compressed/misc.c +++ /dev/null @@ -1,393 +0,0 @@ -/* MN10300 Miscellaneous helper routines for kernel decompressor - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - Derived from arch/x86/boot/compressed/misc_32.c - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/compiler.h> -#include <asm/serial-regs.h> -#include "misc.h" - -#ifndef CONFIG_GDBSTUB_ON_TTYSx -/* display 'Uncompressing Linux... ' messages on ttyS0 or ttyS1 */ -#if 1 /* ttyS0 */ -#define CYG_DEV_BASE 0xA6FB0000 -#else /* ttyS1 */ -#define CYG_DEV_BASE 0xA6FC0000 -#endif - -#define CYG_DEV_THR (*((volatile __u8*)(CYG_DEV_BASE + 0x00))) -#define CYG_DEV_MCR (*((volatile __u8*)(CYG_DEV_BASE + 0x10))) -#define SIO_MCR_DTR 0x01 -#define SIO_MCR_RTS 0x02 -#define CYG_DEV_LSR (*((volatile __u8*)(CYG_DEV_BASE + 0x14))) -#define SIO_LSR_THRE 0x20 /* transmitter holding register empty */ -#define SIO_LSR_TEMT 0x40 /* transmitter register empty */ -#define CYG_DEV_MSR (*((volatile __u8*)(CYG_DEV_BASE + 0x18))) -#define SIO_MSR_CTS 0x10 /* clear to send */ -#define SIO_MSR_DSR 0x20 /* data set ready */ - -#define LSR_WAIT_FOR(STATE) \ - do { while (!(CYG_DEV_LSR & SIO_LSR_##STATE)) {} } while (0) -#define FLOWCTL_QUERY(LINE) \ - ({ CYG_DEV_MSR & SIO_MSR_##LINE; }) -#define FLOWCTL_WAIT_FOR(LINE) \ - do { while (!(CYG_DEV_MSR & SIO_MSR_##LINE)) {} } while (0) -#define FLOWCTL_CLEAR(LINE) \ - do { CYG_DEV_MCR &= ~SIO_MCR_##LINE; } while (0) -#define FLOWCTL_SET(LINE) \ - do { CYG_DEV_MCR |= SIO_MCR_##LINE; } while (0) -#endif - -/* - * gzip declarations - */ - -#define OF(args) args -#define STATIC static - -#undef memset -#undef memcpy - -static inline void *memset(const void *s, int c, size_t n) -{ - int i; - char *ss = (char *) s; - - for (i = 0; i < n; i++) - ss[i] = c; - return (void *)s; -} - -#define memzero(s, n) memset((s), 0, (n)) - -static inline void *memcpy(void *__dest, const void *__src, size_t __n) -{ - int i; - const char *s = __src; - char *d = __dest; - - for (i = 0; i < __n; i++) - d[i] = s[i]; - return __dest; -} - -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x8000 /* Window size must be at least 32k, and a power of - * two */ - -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* sliding window buffer */ - -static unsigned insize; /* valid bytes in inbuf */ -static unsigned inptr; /* index of next byte to be processed in inbuf */ -static unsigned outcnt; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond, msg) { if (!(cond)) error(msg); } -# define Trace(x) fprintf x -# define Tracev(x) { if (verbose) fprintf x ; } -# define Tracevv(x) { if (verbose > 1) fprintf x ; } -# define Tracec(c, x) { if (verbose && (c)) fprintf x ; } -# define Tracecv(c, x) { if (verbose > 1 && (c)) fprintf x ; } -#else -# define Assert(cond, msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c, x) -# define Tracecv(c, x) -#endif - -static int fill_inbuf(void); -static void flush_window(void); -static void error(const char *) __attribute__((noreturn)); -static void kputs(const char *); - -static inline unsigned char get_byte(void) -{ - unsigned char ch = inptr < insize ? inbuf[inptr++] : fill_inbuf(); - -#if 0 - char hex[3]; - hex[0] = ((ch & 0x0f) > 9) ? - ((ch & 0x0f) + 'A' - 0xa) : ((ch & 0x0f) + '0'); - hex[1] = ((ch >> 4) > 9) ? - ((ch >> 4) + 'A' - 0xa) : ((ch >> 4) + '0'); - hex[2] = 0; - kputs(hex); -#endif - return ch; -} - -/* - * This is set up by the setup-routine at boot-time - */ -#define EXT_MEM_K (*(unsigned short *)0x90002) -#ifndef STANDARD_MEMORY_BIOS_CALL -#define ALT_MEM_K (*(unsigned long *) 0x901e0) -#endif -#define SCREEN_INFO (*(struct screen_info *)0x90000) - -static long bytes_out; -static uch *output_data; -static unsigned long output_ptr; - - -static unsigned long free_mem_ptr = (unsigned long) &end; -static unsigned long free_mem_end_ptr = (unsigned long) &end + 0x90000; - -#define INPLACE_MOVE_ROUTINE 0x1000 -#define LOW_BUFFER_START 0x2000 -#define LOW_BUFFER_END 0x90000 -#define LOW_BUFFER_SIZE (LOW_BUFFER_END - LOW_BUFFER_START) -#define HEAP_SIZE 0x3000 -static int high_loaded; -static uch *high_buffer_start /* = (uch *)(((ulg)&end) + HEAP_SIZE)*/; - -static char *vidmem = (char *)0xb8000; -static int lines, cols; - -#define BOOTLOADER_INFLATE -#include "../../../../lib/inflate.c" - -static inline void scroll(void) -{ - int i; - - memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2); - for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2) - vidmem[i] = ' '; -} - -static inline void kputchar(unsigned char ch) -{ -#ifdef CONFIG_MN10300_UNIT_ASB2305 - while (SC0STR & SC01STR_TBF) - continue; - - if (ch == 0x0a) { - SC0TXB = 0x0d; - while (SC0STR & SC01STR_TBF) - continue; - } - - SC0TXB = ch; - -#else - while (SC1STR & SC01STR_TBF) - continue; - - if (ch == 0x0a) { - SC1TXB = 0x0d; - while (SC1STR & SC01STR_TBF) - continue; - } - - SC1TXB = ch; - -#endif -} - -static void kputs(const char *s) -{ -#ifdef CONFIG_DEBUG_DECOMPRESS_KERNEL -#ifndef CONFIG_GDBSTUB_ON_TTYSx - char ch; - - FLOWCTL_SET(DTR); - - while (*s) { - LSR_WAIT_FOR(THRE); - - ch = *s++; - if (ch == 0x0a) { - CYG_DEV_THR = 0x0d; - LSR_WAIT_FOR(THRE); - } - CYG_DEV_THR = ch; - } - - FLOWCTL_CLEAR(DTR); -#else - - for (; *s; s++) - kputchar(*s); - -#endif -#endif /* CONFIG_DEBUG_DECOMPRESS_KERNEL */ -} - -/* =========================================================================== - * Fill the input buffer. This is called only when the buffer is empty - * and at least one byte is really needed. - */ -static int fill_inbuf() -{ - if (insize != 0) - error("ran out of input data\n"); - - inbuf = input_data; - insize = input_len; - inptr = 1; - return inbuf[0]; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ -static void flush_window_low(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, *out, ch; - - in = window; - out = &output_data[output_ptr]; - for (n = 0; n < outcnt; n++) { - ch = *out++ = *in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - output_ptr += (ulg)outcnt; - outcnt = 0; -} - -static void flush_window_high(void) -{ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, ch; - in = window; - for (n = 0; n < outcnt; n++) { - ch = *output_data++ = *in++; - if ((ulg) output_data == LOW_BUFFER_END) - output_data = high_buffer_start; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - outcnt = 0; -} - -static void flush_window(void) -{ - if (high_loaded) - flush_window_high(); - else - flush_window_low(); -} - -static void error(const char *x) -{ - kputs("\n\n"); - kputs(x); - kputs("\n\n -- System halted"); - - while (1) - /* Halt */; -} - -#define STACK_SIZE (4096) - -long user_stack[STACK_SIZE]; - -struct { - long *a; - short b; -} stack_start = { &user_stack[STACK_SIZE], 0 }; - -void setup_normal_output_buffer(void) -{ -#ifdef STANDARD_MEMORY_BIOS_CALL - if (EXT_MEM_K < 1024) - error("Less than 2MB of memory.\n"); -#else - if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < 1024) - error("Less than 2MB of memory.\n"); -#endif - output_data = (char *) 0x100000; /* Points to 1M */ -} - -struct moveparams { - uch *low_buffer_start; - int lcount; - uch *high_buffer_start; - int hcount; -}; - -void setup_output_buffer_if_we_run_high(struct moveparams *mv) -{ - high_buffer_start = (uch *)(((ulg) &end) + HEAP_SIZE); -#ifdef STANDARD_MEMORY_BIOS_CALL - if (EXT_MEM_K < (3 * 1024)) - error("Less than 4MB of memory.\n"); -#else - if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < (3 * 1024)) - error("Less than 4MB of memory.\n"); -#endif - mv->low_buffer_start = output_data = (char *) LOW_BUFFER_START; - high_loaded = 1; - free_mem_end_ptr = (long) high_buffer_start; - if (0x100000 + LOW_BUFFER_SIZE > (ulg) high_buffer_start) { - high_buffer_start = (uch *)(0x100000 + LOW_BUFFER_SIZE); - mv->hcount = 0; /* say: we need not to move high_buffer */ - } else { - mv->hcount = -1; - } - mv->high_buffer_start = high_buffer_start; -} - -void close_output_buffer_if_we_run_high(struct moveparams *mv) -{ - mv->lcount = bytes_out; - if (bytes_out > LOW_BUFFER_SIZE) { - mv->lcount = LOW_BUFFER_SIZE; - if (mv->hcount) - mv->hcount = bytes_out - LOW_BUFFER_SIZE; - } else { - mv->hcount = 0; - } -} - -#undef DEBUGFLAG -#ifdef DEBUGFLAG -int debugflag; -#endif - -int decompress_kernel(struct moveparams *mv) -{ -#ifdef DEBUGFLAG - while (!debugflag) - barrier(); -#endif - - output_data = (char *) CONFIG_KERNEL_TEXT_ADDRESS; - - makecrc(); - kputs("Uncompressing Linux... "); - gunzip(); - kputs("Ok, booting the kernel.\n"); - return 0; -} diff --git a/arch/mn10300/boot/compressed/misc.h b/arch/mn10300/boot/compressed/misc.h deleted file mode 100644 index da921cd172fb..000000000000 --- a/arch/mn10300/boot/compressed/misc.h +++ /dev/null @@ -1,18 +0,0 @@ -/* Internal definitions for the MN10300 kernel decompressor - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -extern int end; - -/* - * vmlinux.lds - */ -extern char input_data[]; -extern int input_len; diff --git a/arch/mn10300/boot/compressed/vmlinux.lds b/arch/mn10300/boot/compressed/vmlinux.lds deleted file mode 100644 index a084903603fe..000000000000 --- a/arch/mn10300/boot/compressed/vmlinux.lds +++ /dev/null @@ -1,9 +0,0 @@ -SECTIONS -{ - .data : { - input_len = .; - LONG(input_data_end - input_data) input_data = .; - *(.data) - input_data_end = .; - } -} diff --git a/arch/mn10300/boot/install.sh b/arch/mn10300/boot/install.sh deleted file mode 100644 index abba30971191..000000000000 --- a/arch/mn10300/boot/install.sh +++ /dev/null @@ -1,67 +0,0 @@ -#!/bin/sh -# -# arch/mn10300/boot/install -c.sh -# -# This file is subject to the terms and conditions of the GNU General Public -# Licence. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1995 by Linus Torvalds -# -# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin -# -# "make install -c" script for i386 architecture -# -# Arguments: -# $1 - kernel version -# $2 - kernel image file -# $3 - kernel map file -# $4 - default install -c path (blank if root directory) -# $5 - boot rom file -# - -# User may have a custom install -c script - -rm -fr $4/../usr/include/linux $4/../usr/include/asm -install -c -m 0755 $2 $4/vmlinuz -install -c -m 0755 $5 $4/boot.rom -install -c -m 0755 -d $4/../usr/include/linux -cd ${srctree}/include/linux -for i in `find . -maxdepth 1 -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux -done -install -c -m 0755 -d $4/../usr/include/linux/byteorder -cd ${srctree}/include/linux/byteorder -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/byteorder -done -install -c -m 0755 -d $4/../usr/include/linux/lockd -cd ${srctree}/include/linux/lockd -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/lockd -done -install -c -m 0755 -d $4/../usr/include/linux/netfilter_ipv4 -cd ${srctree}/include/linux/netfilter_ipv4 -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/netfilter_ipv4 -done -install -c -m 0755 -d $4/../usr/include/linux/nfsd -cd ${srctree}/include/linux/nfsd -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/nfsd/$i -done -install -c -m 0755 -d $4/../usr/include/linux/raid -cd ${srctree}/include/linux/raid -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/raid -done -install -c -m 0755 -d $4/../usr/include/linux/sunrpc -cd ${srctree}/include/linux/sunrpc -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/linux/sunrpc -done -install -c -m 0755 -d $4/../usr/include/asm -cd ${srctree}/include/asm -for i in `find . -name '*.h' -print`; do - install -c -m 0644 $i $4/../usr/include/asm -done diff --git a/arch/mn10300/boot/tools/build.c b/arch/mn10300/boot/tools/build.c deleted file mode 100644 index 3ce158fe07b0..000000000000 --- a/arch/mn10300/boot/tools/build.c +++ /dev/null @@ -1,191 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1997 Martin Mares - */ - -/* - * This file builds a disk-image from three different files: - * - * - bootsect: exactly 512 bytes of 8086 machine code, loads the rest - * - setup: 8086 machine code, sets up system parm - * - system: 80386 code for actual system - * - * It does some checking that all files are of the correct type, and - * just writes the result to stdout, removing headers and padding to - * the right amount. It also writes some system data to stderr. - */ - -/* - * Changes by tytso to allow root device specification - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - * Cross compiling fixes by Gertjan van Wingerde, July 1996 - * Rewritten by Martin Mares, April 1997 - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <stdarg.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/sysmacros.h> -#include <unistd.h> -#include <fcntl.h> -#include <asm/boot.h> - -#define DEFAULT_MAJOR_ROOT 0 -#define DEFAULT_MINOR_ROOT 0 - -/* Minimal number of setup sectors (see also bootsect.S) */ -#define SETUP_SECTS 4 - -uint8_t buf[1024]; -int fd; -int is_big_kernel; - -__attribute__((noreturn)) -void die(const char *str, ...) -{ - va_list args; - va_start(args, str); - vfprintf(stderr, str, args); - fputc('\n', stderr); - exit(1); -} - -void file_open(const char *name) -{ - fd = open(name, O_RDONLY, 0); - if (fd < 0) - die("Unable to open `%s': %m", name); -} - -__attribute__((noreturn)) -void usage(void) -{ - die("Usage: build [-b] bootsect setup system [rootdev] [> image]"); -} - -int main(int argc, char **argv) -{ - unsigned int i, c, sz, setup_sectors; - uint32_t sys_size; - uint8_t major_root, minor_root; - struct stat sb; - - if (argc > 2 && !strcmp(argv[1], "-b")) { - is_big_kernel = 1; - argc--, argv++; - } - if ((argc < 4) || (argc > 5)) - usage(); - if (argc > 4) { - if (!strcmp(argv[4], "CURRENT")) { - if (stat("/", &sb)) { - perror("/"); - die("Couldn't stat /"); - } - major_root = major(sb.st_dev); - minor_root = minor(sb.st_dev); - } else if (strcmp(argv[4], "FLOPPY")) { - if (stat(argv[4], &sb)) { - perror(argv[4]); - die("Couldn't stat root device."); - } - major_root = major(sb.st_rdev); - minor_root = minor(sb.st_rdev); - } else { - major_root = 0; - minor_root = 0; - } - } else { - major_root = DEFAULT_MAJOR_ROOT; - minor_root = DEFAULT_MINOR_ROOT; - } - fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root); - - file_open(argv[1]); - i = read(fd, buf, sizeof(buf)); - fprintf(stderr, "Boot sector %d bytes.\n", i); - if (i != 512) - die("Boot block must be exactly 512 bytes"); - if (buf[510] != 0x55 || buf[511] != 0xaa) - die("Boot block hasn't got boot flag (0xAA55)"); - buf[508] = minor_root; - buf[509] = major_root; - if (write(1, buf, 512) != 512) - die("Write call failed"); - close(fd); - - /* Copy the setup code */ - file_open(argv[2]); - for (i = 0; (c = read(fd, buf, sizeof(buf))) > 0; i += c) - if (write(1, buf, c) != c) - die("Write call failed"); - if (c != 0) - die("read-error on `setup'"); - close(fd); - - /* Pad unused space with zeros */ - setup_sectors = (i + 511) / 512; - /* for compatibility with ancient versions of LILO. */ - if (setup_sectors < SETUP_SECTS) - setup_sectors = SETUP_SECTS; - fprintf(stderr, "Setup is %d bytes.\n", i); - memset(buf, 0, sizeof(buf)); - while (i < setup_sectors * 512) { - c = setup_sectors * 512 - i; - if (c > sizeof(buf)) - c = sizeof(buf); - if (write(1, buf, c) != c) - die("Write call failed"); - i += c; - } - - file_open(argv[3]); - if (fstat(fd, &sb)) - die("Unable to stat `%s': %m", argv[3]); - sz = sb.st_size; - fprintf(stderr, "System is %d kB\n", sz / 1024); - sys_size = (sz + 15) / 16; - /* 0x28000*16 = 2.5 MB, conservative estimate for the current maximum */ - if (sys_size > (is_big_kernel ? 0x28000 : DEF_SYSSIZE)) - die("System is too big. Try using %smodules.", - is_big_kernel ? "" : "bzImage or "); - if (sys_size > 0xffff) - fprintf(stderr, - "warning: kernel is too big for standalone boot " - "from floppy\n"); - while (sz > 0) { - int l, n; - - l = (sz > sizeof(buf)) ? sizeof(buf) : sz; - n = read(fd, buf, l); - if (n != l) { - if (n < 0) - die("Error reading %s: %m", argv[3]); - else - die("%s: Unexpected EOF", argv[3]); - } - if (write(1, buf, l) != l) - die("Write failed"); - sz -= l; - } - close(fd); - - /* Write sizes to the bootsector */ - if (lseek(1, 497, SEEK_SET) != 497) - die("Output: seek failed"); - buf[0] = setup_sectors; - if (write(1, buf, 1) != 1) - die("Write of setup sector count failed"); - if (lseek(1, 500, SEEK_SET) != 500) - die("Output: seek failed"); - buf[0] = (sys_size & 0xff); - buf[1] = ((sys_size >> 8) & 0xff); - if (write(1, buf, 2) != 2) - die("Write of image length failed"); - - return 0; -} diff --git a/arch/mn10300/configs/asb2303_defconfig b/arch/mn10300/configs/asb2303_defconfig deleted file mode 100644 index d06dae131139..000000000000 --- a/arch/mn10300/configs/asb2303_defconfig +++ /dev/null @@ -1,67 +0,0 @@ -CONFIG_SYSVIPC=y -CONFIG_BSD_PROCESS_ACCT=y -CONFIG_TINY_RCU=y -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_HOTPLUG is not set -# CONFIG_VM_EVENT_COUNTERS is not set -CONFIG_SLAB=y -CONFIG_PROFILING=y -# CONFIG_BLOCK is not set -CONFIG_PREEMPT=y -CONFIG_NO_HZ=y -CONFIG_HIGH_RES_TIMERS=y -CONFIG_MN10300_RTC=y -CONFIG_MN10300_TTYSM_CONSOLE=y -CONFIG_MN10300_TTYSM0=y -CONFIG_MN10300_TTYSM1=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -CONFIG_IP_PNP=y -CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_DIAG is not set -# CONFIG_IPV6 is not set -# CONFIG_WIRELESS is not set -CONFIG_MTD=y -CONFIG_MTD_DEBUG=y -CONFIG_MTD_REDBOOT_PARTS=y -CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y -CONFIG_MTD_CFI=y -CONFIG_MTD_JEDECPROBE=y -CONFIG_MTD_CFI_ADV_OPTIONS=y -CONFIG_MTD_CFI_GEOMETRY=y -CONFIG_MTD_CFI_I4=y -CONFIG_MTD_CFI_AMDSTD=y -CONFIG_MTD_PHYSMAP=y -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_SMC91X=y -# CONFIG_WLAN is not set -# CONFIG_INPUT is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_EXTENDED=y -CONFIG_SERIAL_8250_SHARE_IRQ=y -# CONFIG_HW_RANDOM is not set -CONFIG_RTC=y -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_PROC_KCORE=y -# CONFIG_PROC_PAGE_MONITOR is not set -CONFIG_TMPFS=y -CONFIG_JFFS2_FS=y -CONFIG_NFS_FS=y -CONFIG_NFS_V3=y -CONFIG_ROOT_NFS=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_STRIP_ASM_SYMS=y diff --git a/arch/mn10300/configs/asb2364_defconfig b/arch/mn10300/configs/asb2364_defconfig deleted file mode 100644 index a84c3153f22a..000000000000 --- a/arch/mn10300/configs/asb2364_defconfig +++ /dev/null @@ -1,87 +0,0 @@ -CONFIG_SYSVIPC=y -CONFIG_POSIX_MQUEUE=y -CONFIG_BSD_PROCESS_ACCT=y -CONFIG_TASKSTATS=y -CONFIG_TASK_DELAY_ACCT=y -CONFIG_TASK_XACCT=y -CONFIG_TASK_IO_ACCOUNTING=y -CONFIG_LOG_BUF_SHIFT=14 -CONFIG_CGROUPS=y -CONFIG_CGROUP_FREEZER=y -CONFIG_CGROUP_DEVICE=y -CONFIG_CGROUP_CPUACCT=y -CONFIG_RELAY=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EXPERT=y -# CONFIG_KALLSYMS is not set -# CONFIG_VM_EVENT_COUNTERS is not set -CONFIG_SLAB=y -CONFIG_PROFILING=y -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_BLOCK is not set -CONFIG_MN10300_UNIT_ASB2364=y -CONFIG_PREEMPT=y -# CONFIG_MN10300_USING_JTAG is not set -CONFIG_NO_HZ=y -CONFIG_HIGH_RES_TIMERS=y -CONFIG_MN10300_TTYSM_CONSOLE=y -CONFIG_MN10300_TTYSM0=y -CONFIG_MN10300_TTYSM0_TIMER2=y -CONFIG_MN10300_TTYSM1=y -CONFIG_NET=y -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -CONFIG_IP_PNP=y -CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_DIAG is not set -CONFIG_IPV6=y -# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set -# CONFIG_INET6_XFRM_MODE_TUNNEL is not set -# CONFIG_INET6_XFRM_MODE_BEET is not set -CONFIG_CONNECTOR=y -CONFIG_MTD=y -CONFIG_MTD_DEBUG=y -CONFIG_MTD_REDBOOT_PARTS=y -CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y -CONFIG_MTD_CFI=y -CONFIG_MTD_JEDECPROBE=y -CONFIG_MTD_CFI_ADV_OPTIONS=y -CONFIG_MTD_CFI_GEOMETRY=y -CONFIG_MTD_CFI_I4=y -CONFIG_MTD_CFI_AMDSTD=y -CONFIG_MTD_PHYSMAP=y -CONFIG_NETDEVICES=y -CONFIG_NET_ETHERNET=y -CONFIG_SMSC911X=y -# CONFIG_INPUT_MOUSEDEV is not set -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_SERIO is not set -# CONFIG_VT is not set -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_EXTENDED=y -CONFIG_SERIAL_8250_SHARE_IRQ=y -# CONFIG_HW_RANDOM is not set -# CONFIG_HWMON is not set -# CONFIG_USB_SUPPORT is not set -CONFIG_PROC_KCORE=y -# CONFIG_PROC_PAGE_MONITOR is not set -CONFIG_TMPFS=y -CONFIG_TMPFS_POSIX_ACL=y -CONFIG_JFFS2_FS=y -CONFIG_NFS_FS=y -CONFIG_NFS_V3=y -CONFIG_ROOT_NFS=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_STRIP_ASM_SYMS=y -CONFIG_DEBUG_KERNEL=y -CONFIG_DETECT_HUNG_TASK=y -# CONFIG_DEBUG_BUGVERBOSE is not set -CONFIG_DEBUG_INFO=y diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild deleted file mode 100644 index 509c45a75d1f..000000000000 --- a/arch/mn10300/include/asm/Kbuild +++ /dev/null @@ -1,13 +0,0 @@ - -generic-y += barrier.h -generic-y += device.h -generic-y += exec.h -generic-y += extable.h -generic-y += fb.h -generic-y += irq_work.h -generic-y += mcs_spinlock.h -generic-y += mm-arch-hooks.h -generic-y += preempt.h -generic-y += sections.h -generic-y += trace_clock.h -generic-y += word-at-a-time.h diff --git a/arch/mn10300/include/asm/asm-offsets.h b/arch/mn10300/include/asm/asm-offsets.h deleted file mode 100644 index d370ee36a182..000000000000 --- a/arch/mn10300/include/asm/asm-offsets.h +++ /dev/null @@ -1 +0,0 @@ -#include <generated/asm-offsets.h> diff --git a/arch/mn10300/include/asm/atomic.h b/arch/mn10300/include/asm/atomic.h deleted file mode 100644 index 36389efd45e8..000000000000 --- a/arch/mn10300/include/asm/atomic.h +++ /dev/null @@ -1,161 +0,0 @@ -/* MN10300 Atomic counter operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_ATOMIC_H -#define _ASM_ATOMIC_H - -#include <asm/irqflags.h> -#include <asm/cmpxchg.h> -#include <asm/barrier.h> - -#ifndef CONFIG_SMP -#include <asm-generic/atomic.h> -#else - -/* - * Atomic operations that C can't guarantee us. Useful for - * resource counting etc.. - */ - -#define ATOMIC_INIT(i) { (i) } - -#ifdef __KERNEL__ - -/** - * atomic_read - read atomic variable - * @v: pointer of type atomic_t - * - * Atomically reads the value of @v. Note that the guaranteed - */ -#define atomic_read(v) READ_ONCE((v)->counter) - -/** - * atomic_set - set atomic variable - * @v: pointer of type atomic_t - * @i: required value - * - * Atomically sets the value of @v to @i. Note that the guaranteed - */ -#define atomic_set(v, i) WRITE_ONCE(((v)->counter), (i)) - -#define ATOMIC_OP(op) \ -static inline void atomic_##op(int i, atomic_t *v) \ -{ \ - int retval, status; \ - \ - asm volatile( \ - "1: mov %4,(_AAR,%3) \n" \ - " mov (_ADR,%3),%1 \n" \ - " " #op " %5,%1 \n" \ - " mov %1,(_ADR,%3) \n" \ - " mov (_ADR,%3),%0 \n" /* flush */ \ - " mov (_ASR,%3),%0 \n" \ - " or %0,%0 \n" \ - " bne 1b \n" \ - : "=&r"(status), "=&r"(retval), "=m"(v->counter) \ - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \ - : "memory", "cc"); \ -} - -#define ATOMIC_OP_RETURN(op) \ -static inline int atomic_##op##_return(int i, atomic_t *v) \ -{ \ - int retval, status; \ - \ - asm volatile( \ - "1: mov %4,(_AAR,%3) \n" \ - " mov (_ADR,%3),%1 \n" \ - " " #op " %5,%1 \n" \ - " mov %1,(_ADR,%3) \n" \ - " mov (_ADR,%3),%0 \n" /* flush */ \ - " mov (_ASR,%3),%0 \n" \ - " or %0,%0 \n" \ - " bne 1b \n" \ - : "=&r"(status), "=&r"(retval), "=m"(v->counter) \ - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \ - : "memory", "cc"); \ - return retval; \ -} - -#define ATOMIC_FETCH_OP(op) \ -static inline int atomic_fetch_##op(int i, atomic_t *v) \ -{ \ - int retval, status; \ - \ - asm volatile( \ - "1: mov %4,(_AAR,%3) \n" \ - " mov (_ADR,%3),%1 \n" \ - " mov %1,%0 \n" \ - " " #op " %5,%0 \n" \ - " mov %0,(_ADR,%3) \n" \ - " mov (_ADR,%3),%0 \n" /* flush */ \ - " mov (_ASR,%3),%0 \n" \ - " or %0,%0 \n" \ - " bne 1b \n" \ - : "=&r"(status), "=&r"(retval), "=m"(v->counter) \ - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(&v->counter), "r"(i) \ - : "memory", "cc"); \ - return retval; \ -} - -#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op) - -ATOMIC_OPS(add) -ATOMIC_OPS(sub) - -#undef ATOMIC_OPS -#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op) - -ATOMIC_OPS(and) -ATOMIC_OPS(or) -ATOMIC_OPS(xor) - -#undef ATOMIC_OPS -#undef ATOMIC_FETCH_OP -#undef ATOMIC_OP_RETURN -#undef ATOMIC_OP - -static inline int atomic_add_negative(int i, atomic_t *v) -{ - return atomic_add_return(i, v) < 0; -} - -static inline void atomic_inc(atomic_t *v) -{ - atomic_add_return(1, v); -} - -static inline void atomic_dec(atomic_t *v) -{ - atomic_sub_return(1, v); -} - -#define atomic_dec_return(v) atomic_sub_return(1, (v)) -#define atomic_inc_return(v) atomic_add_return(1, (v)) - -#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0) -#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) -#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0) - -#define __atomic_add_unless(v, a, u) \ -({ \ - int c, old; \ - c = atomic_read(v); \ - while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \ - c = old; \ - c; \ -}) - -#define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v))) -#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) - -#endif /* __KERNEL__ */ -#endif /* CONFIG_SMP */ -#endif /* _ASM_ATOMIC_H */ diff --git a/arch/mn10300/include/asm/bitops.h b/arch/mn10300/include/asm/bitops.h deleted file mode 100644 index fe6f8e2c3617..000000000000 --- a/arch/mn10300/include/asm/bitops.h +++ /dev/null @@ -1,232 +0,0 @@ -/* MN10300 bit operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - * - * These have to be done with inline assembly: that way the bit-setting - * is guaranteed to be atomic. All bit operations return 0 if the bit - * was cleared before the operation and != 0 if it was not. - * - * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). - */ -#ifndef __ASM_BITOPS_H -#define __ASM_BITOPS_H - -#include <asm/cpu-regs.h> -#include <asm/barrier.h> - -/* - * set bit - */ -#define __set_bit(nr, addr) \ -({ \ - volatile unsigned char *_a = (unsigned char *)(addr); \ - const unsigned shift = (nr) & 7; \ - _a += (nr) >> 3; \ - \ - asm volatile("bset %2,(%1) # set_bit reg" \ - : "=m"(*_a) \ - : "a"(_a), "d"(1 << shift), "m"(*_a) \ - : "memory", "cc"); \ -}) - -#define set_bit(nr, addr) __set_bit((nr), (addr)) - -/* - * clear bit - */ -#define ___clear_bit(nr, addr) \ -({ \ - volatile unsigned char *_a = (unsigned char *)(addr); \ - const unsigned shift = (nr) & 7; \ - _a += (nr) >> 3; \ - \ - asm volatile("bclr %2,(%1) # clear_bit reg" \ - : "=m"(*_a) \ - : "a"(_a), "d"(1 << shift), "m"(*_a) \ - : "memory", "cc"); \ -}) - -#define clear_bit(nr, addr) ___clear_bit((nr), (addr)) - - -static inline void __clear_bit(unsigned long nr, volatile void *addr) -{ - unsigned int *a = (unsigned int *) addr; - int mask; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - *a &= ~mask; -} - -/* - * test bit - */ -static inline int test_bit(unsigned long nr, const volatile void *addr) -{ - return 1UL & (((const volatile unsigned int *) addr)[nr >> 5] >> (nr & 31)); -} - -/* - * change bit - */ -static inline void __change_bit(unsigned long nr, volatile void *addr) -{ - int mask; - unsigned int *a = (unsigned int *) addr; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - *a ^= mask; -} - -extern void change_bit(unsigned long nr, volatile void *addr); - -/* - * test and set bit - */ -#define __test_and_set_bit(nr,addr) \ -({ \ - volatile unsigned char *_a = (unsigned char *)(addr); \ - const unsigned shift = (nr) & 7; \ - unsigned epsw; \ - _a += (nr) >> 3; \ - \ - asm volatile("bset %3,(%2) # test_set_bit reg\n" \ - "mov epsw,%1" \ - : "=m"(*_a), "=d"(epsw) \ - : "a"(_a), "d"(1 << shift), "m"(*_a) \ - : "memory", "cc"); \ - \ - !(epsw & EPSW_FLAG_Z); \ -}) - -#define test_and_set_bit(nr, addr) __test_and_set_bit((nr), (addr)) - -/* - * test and clear bit - */ -#define __test_and_clear_bit(nr, addr) \ -({ \ - volatile unsigned char *_a = (unsigned char *)(addr); \ - const unsigned shift = (nr) & 7; \ - unsigned epsw; \ - _a += (nr) >> 3; \ - \ - asm volatile("bclr %3,(%2) # test_clear_bit reg\n" \ - "mov epsw,%1" \ - : "=m"(*_a), "=d"(epsw) \ - : "a"(_a), "d"(1 << shift), "m"(*_a) \ - : "memory", "cc"); \ - \ - !(epsw & EPSW_FLAG_Z); \ -}) - -#define test_and_clear_bit(nr, addr) __test_and_clear_bit((nr), (addr)) - -/* - * test and change bit - */ -static inline int __test_and_change_bit(unsigned long nr, volatile void *addr) -{ - int mask, retval; - unsigned int *a = (unsigned int *)addr; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - retval = (mask & *a) != 0; - *a ^= mask; - - return retval; -} - -extern int test_and_change_bit(unsigned long nr, volatile void *addr); - -#include <asm-generic/bitops/lock.h> - -#ifdef __KERNEL__ - -/** - * __ffs - find first bit set - * @x: the word to search - * - * - return 31..0 to indicate bit 31..0 most least significant bit set - * - if no bits are set in x, the result is undefined - */ -static inline __attribute__((const)) -unsigned long __ffs(unsigned long x) -{ - int bit; - asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(x & -x) : "cc"); - return bit; -} - -/* - * special slimline version of fls() for calculating ilog2_u32() - * - note: no protection against n == 0 - */ -static inline __attribute__((const)) -int __ilog2_u32(u32 n) -{ - int bit; - asm("bsch %2,%0" : "=r"(bit) : "0"(0), "r"(n) : "cc"); - return bit; -} - -/** - * fls - find last bit set - * @x: the word to search - * - * This is defined the same way as ffs: - * - return 32..1 to indicate bit 31..0 most significant bit set - * - return 0 to indicate no bits set - */ -static inline __attribute__((const)) -int fls(int x) -{ - return (x != 0) ? __ilog2_u32(x) + 1 : 0; -} - -/** - * __fls - find last (most-significant) set bit in a long word - * @word: the word to search - * - * Undefined if no set bit exists, so code should check against 0 first. - */ -static inline unsigned long __fls(unsigned long word) -{ - return __ilog2_u32(word); -} - -/** - * ffs - find first bit set - * @x: the word to search - * - * - return 32..1 to indicate bit 31..0 most least significant bit set - * - return 0 to indicate no bits set - */ -static inline __attribute__((const)) -int ffs(int x) -{ - /* Note: (x & -x) gives us a mask that is the least significant - * (rightmost) 1-bit of the value in x. - */ - return fls(x & -x); -} - -#include <asm-generic/bitops/ffz.h> -#include <asm-generic/bitops/fls64.h> -#include <asm-generic/bitops/find.h> -#include <asm-generic/bitops/sched.h> -#include <asm-generic/bitops/hweight.h> -#include <asm-generic/bitops/ext2-atomic-setbit.h> -#include <asm-generic/bitops/le.h> - -#endif /* __KERNEL__ */ -#endif /* __ASM_BITOPS_H */ diff --git a/arch/mn10300/include/asm/bug.h b/arch/mn10300/include/asm/bug.h deleted file mode 100644 index 811414fb002d..000000000000 --- a/arch/mn10300/include/asm/bug.h +++ /dev/null @@ -1,37 +0,0 @@ -/* MN10300 Kernel bug reporting - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_BUG_H -#define _ASM_BUG_H - -#ifdef CONFIG_BUG - -/* - * Tell the user there is some problem. - */ -#define BUG() \ -do { \ - asm volatile( \ - " syscall 15 \n" \ - "0: \n" \ - " .section __bug_table,\"aw\" \n" \ - " .long 0b,%0,%1 \n" \ - " .previous \n" \ - : \ - : "i"(__FILE__), "i"(__LINE__) \ - ); \ -} while (1) - -#define HAVE_ARCH_BUG -#endif /* CONFIG_BUG */ - -#include <asm-generic/bug.h> - -#endif /* _ASM_BUG_H */ diff --git a/arch/mn10300/include/asm/bugs.h b/arch/mn10300/include/asm/bugs.h deleted file mode 100644 index 31c8bc592b47..000000000000 --- a/arch/mn10300/include/asm/bugs.h +++ /dev/null @@ -1,20 +0,0 @@ -/* MN10300 Checks for architecture-dependent bugs - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_BUGS_H -#define _ASM_BUGS_H - -#include <asm/processor.h> - -static inline void __init check_bugs(void) -{ -} - -#endif /* _ASM_BUGS_H */ diff --git a/arch/mn10300/include/asm/busctl-regs.h b/arch/mn10300/include/asm/busctl-regs.h deleted file mode 100644 index 1632aef73401..000000000000 --- a/arch/mn10300/include/asm/busctl-regs.h +++ /dev/null @@ -1,151 +0,0 @@ -/* AM33v2 on-board bus controller registers - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_BUSCTL_REGS_H -#define _ASM_BUSCTL_REGS_H - -#include <asm/cpu-regs.h> - -#ifdef __KERNEL__ - -/* bus controller registers */ -#define BCCR __SYSREG(0xc0002000, u32) /* bus controller control reg */ -#define BCCR_B0AD 0x00000003 /* block 0 (80000000-83ffffff) bus allocation */ -#define BCCR_B1AD 0x0000000c /* block 1 (84000000-87ffffff) bus allocation */ -#define BCCR_B2AD 0x00000030 /* block 2 (88000000-8bffffff) bus allocation */ -#define BCCR_B3AD 0x000000c0 /* block 3 (8c000000-8fffffff) bus allocation */ -#define BCCR_B4AD 0x00000300 /* block 4 (90000000-93ffffff) bus allocation */ -#define BCCR_B5AD 0x00000c00 /* block 5 (94000000-97ffffff) bus allocation */ -#define BCCR_B6AD 0x00003000 /* block 6 (98000000-9bffffff) bus allocation */ -#define BCCR_B7AD 0x0000c000 /* block 7 (9c000000-9fffffff) bus allocation */ -#define BCCR_BxAD_EXBUS 0x0 /* - direct to system bus controller */ -#define BCCR_BxAD_OPEXBUS 0x1 /* - direct to memory bus controller */ -#define BCCR_BxAD_OCMBUS 0x2 /* - direct to on chip memory */ -#define BCCR_API 0x00070000 /* bus arbitration priority */ -#define BCCR_API_DMACICD 0x00000000 /* - DMA > CI > CD */ -#define BCCR_API_DMACDCI 0x00010000 /* - DMA > CD > CI */ -#define BCCR_API_CICDDMA 0x00020000 /* - CI > CD > DMA */ -#define BCCR_API_CDCIDMA 0x00030000 /* - CD > CI > DMA */ -#define BCCR_API_ROUNDROBIN 0x00040000 /* - round robin */ -#define BCCR_BEPRI_DMACICD 0x00c00000 /* bus error address priority */ -#define BCCR_BEPRI_DMACDCI 0x00000000 /* - DMA > CI > CD */ -#define BCCR_BEPRI_CICDDMA 0x00400000 /* - DMA > CD > CI */ -#define BCCR_BEPRI_CDCIDMA 0x00800000 /* - CI > CD > DMA */ -#define BCCR_BEPRI 0x00c00000 /* - CD > CI > DMA */ -#define BCCR_TMON 0x03000000 /* timeout value settings */ -#define BCCR_TMON_16IOCLK 0x00000000 /* - 16 IOCLK cycles */ -#define BCCR_TMON_256IOCLK 0x01000000 /* - 256 IOCLK cycles */ -#define BCCR_TMON_4096IOCLK 0x02000000 /* - 4096 IOCLK cycles */ -#define BCCR_TMON_65536IOCLK 0x03000000 /* - 65536 IOCLK cycles */ -#define BCCR_TMOE 0x10000000 /* timeout detection enable */ - -#define BCBERR __SYSREG(0xc0002010, u32) /* bus error source reg */ -#define BCBERR_BESB 0x0000001f /* erroneous access destination space */ -#define BCBERR_BESB_MON 0x00000001 /* - monitor space */ -#define BCBERR_BESB_IO 0x00000002 /* - IO bus */ -#define BCBERR_BESB_EX 0x00000004 /* - EX bus */ -#define BCBERR_BESB_OPEX 0x00000008 /* - OpEX bus */ -#define BCBERR_BESB_OCM 0x00000010 /* - on chip memory */ -#define BCBERR_BERW 0x00000100 /* type of access */ -#define BCBERR_BERW_WRITE 0x00000000 /* - write */ -#define BCBERR_BERW_READ 0x00000100 /* - read */ -#define BCBERR_BESD 0x00000200 /* error detector */ -#define BCBERR_BESD_BCU 0x00000000 /* - BCU detected error */ -#define BCBERR_BESD_SLAVE_BUS 0x00000200 /* - slave bus detected error */ -#define BCBERR_BEBST 0x00000400 /* type of access */ -#define BCBERR_BEBST_SINGLE 0x00000000 /* - single */ -#define BCBERR_BEBST_BURST 0x00000400 /* - burst */ -#define BCBERR_BEME 0x00000800 /* multiple bus error flag */ -#define BCBERR_BEMR 0x00007000 /* master bus that caused the error */ -#define BCBERR_BEMR_NOERROR 0x00000000 /* - no error */ -#define BCBERR_BEMR_CI 0x00001000 /* - CPU instruction fetch bus caused error */ -#define BCBERR_BEMR_CD 0x00002000 /* - CPU data bus caused error */ -#define BCBERR_BEMR_DMA 0x00004000 /* - DMA bus caused error */ - -#define BCBEAR __SYSREGC(0xc0002020, u32) /* bus error address reg */ - -/* system bus controller registers */ -#define SBBASE(X) __SYSREG(0xd8c00100 + (X) * 0x10, u32) /* SBC base addr regs */ -#define SBBASE_BE 0x00000001 /* bank enable */ -#define SBBASE_BAM 0x0000fffe /* bank address mask [31:17] */ -#define SBBASE_BBA 0xfffe0000 /* bank base address [31:17] */ - -#define SBCNTRL0(X) __SYSREG(0xd8c00200 + (X) * 0x10, u32) /* SBC bank ctrl0 regs */ -#define SBCNTRL0_WEH 0x00000f00 /* write enable hold */ -#define SBCNTRL0_REH 0x0000f000 /* read enable hold */ -#define SBCNTRL0_RWH 0x000f0000 /* SRW signal hold */ -#define SBCNTRL0_CSH 0x00f00000 /* chip select hold */ -#define SBCNTRL0_DAH 0x0f000000 /* data hold */ -#define SBCNTRL0_ADH 0xf0000000 /* address hold */ - -#define SBCNTRL1(X) __SYSREG(0xd8c00204 + (X) * 0x10, u32) /* SBC bank ctrl1 regs */ -#define SBCNTRL1_WED 0x00000f00 /* write enable delay */ -#define SBCNTRL1_RED 0x0000f000 /* read enable delay */ -#define SBCNTRL1_RWD 0x000f0000 /* SRW signal delay */ -#define SBCNTRL1_ASW 0x00f00000 /* address strobe width */ -#define SBCNTRL1_CSD 0x0f000000 /* chip select delay */ -#define SBCNTRL1_ASD 0xf0000000 /* address strobe delay */ - -#define SBCNTRL2(X) __SYSREG(0xd8c00208 + (X) * 0x10, u32) /* SBC bank ctrl2 regs */ -#define SBCNTRL2_WC 0x000000ff /* wait count */ -#define SBCNTRL2_BWC 0x00000f00 /* burst wait count */ -#define SBCNTRL2_WM 0x01000000 /* wait mode setting */ -#define SBCNTRL2_WM_FIXEDWAIT 0x00000000 /* - fixed wait access */ -#define SBCNTRL2_WM_HANDSHAKE 0x01000000 /* - handshake access */ -#define SBCNTRL2_BM 0x02000000 /* bus synchronisation mode */ -#define SBCNTRL2_BM_SYNC 0x00000000 /* - synchronous mode */ -#define SBCNTRL2_BM_ASYNC 0x02000000 /* - asynchronous mode */ -#define SBCNTRL2_BW 0x04000000 /* bus width */ -#define SBCNTRL2_BW_32 0x00000000 /* - 32 bits */ -#define SBCNTRL2_BW_16 0x04000000 /* - 16 bits */ -#define SBCNTRL2_RWINV 0x08000000 /* R/W signal invert polarity */ -#define SBCNTRL2_RWINV_NORM 0x00000000 /* - normal (read high) */ -#define SBCNTRL2_RWINV_INV 0x08000000 /* - inverted (read low) */ -#define SBCNTRL2_BT 0x70000000 /* bus type setting */ -#define SBCNTRL2_BT_SRAM 0x00000000 /* - SRAM interface */ -#define SBCNTRL2_BT_ADMUX 0x00000000 /* - addr/data multiplexed interface */ -#define SBCNTRL2_BT_BROM 0x00000000 /* - burst ROM interface */ -#define SBCNTRL2_BTSE 0x80000000 /* burst enable */ - -/* memory bus controller */ -#define SDBASE(X) __SYSREG(0xda000008 + (X) * 0x4, u32) /* MBC base addr regs */ -#define SDBASE_CE 0x00000001 /* chip enable */ -#define SDBASE_CBAM 0x0000fff0 /* chip base address mask [31:20] */ -#define SDBASE_CBAM_SHIFT 16 -#define SDBASE_CBA 0xfff00000 /* chip base address [31:20] */ - -#define SDRAMBUS __SYSREG(0xda000000, u32) /* bus mode control reg */ -#define SDRAMBUS_REFEN 0x00000004 /* refresh enable */ -#define SDRAMBUS_TRC 0x00000018 /* refresh command delay time */ -#define SDRAMBUS_BSTPT 0x00000020 /* burst stop command enable */ -#define SDRAMBUS_PONSEQ 0x00000040 /* power on sequence */ -#define SDRAMBUS_SELFREQ 0x00000080 /* self-refresh mode request */ -#define SDRAMBUS_SELFON 0x00000100 /* self-refresh mode on */ -#define SDRAMBUS_SIZE 0x00030000 /* SDRAM size */ -#define SDRAMBUS_SIZE_64Mbit 0x00010000 /* 64Mbit SDRAM (x16) */ -#define SDRAMBUS_SIZE_128Mbit 0x00020000 /* 128Mbit SDRAM (x16) */ -#define SDRAMBUS_SIZE_256Mbit 0x00030000 /* 256Mbit SDRAM (x16) */ -#define SDRAMBUS_TRASWAIT 0x000c0000 /* row address precharge command cycle number */ -#define SDRAMBUS_REFNUM 0x00300000 /* refresh command number */ -#define SDRAMBUS_BSTWAIT 0x00c00000 /* burst stop command cycle */ -#define SDRAMBUS_SETWAIT 0x03000000 /* mode register setting command cycle */ -#define SDRAMBUS_PREWAIT 0x0c000000 /* precharge command cycle */ -#define SDRAMBUS_RASLATE 0x30000000 /* RAS latency */ -#define SDRAMBUS_CASLATE 0xc0000000 /* CAS latency */ - -#define SDREFCNT __SYSREG(0xda000004, u32) /* refresh period reg */ -#define SDREFCNT_PERI 0x00000fff /* refresh period */ - -#define SDSHDW __SYSREG(0xda000010, u32) /* test reg */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_BUSCTL_REGS_H */ diff --git a/arch/mn10300/include/asm/cache.h b/arch/mn10300/include/asm/cache.h deleted file mode 100644 index f29cde2cfc91..000000000000 --- a/arch/mn10300/include/asm/cache.h +++ /dev/null @@ -1,60 +0,0 @@ -/* MN10300 cache management registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_CACHE_H -#define _ASM_CACHE_H - -#include <asm/cpu-regs.h> -#include <proc/cache.h> - -#ifndef __ASSEMBLY__ -#define L1_CACHE_DISPARITY (L1_CACHE_NENTRIES * L1_CACHE_BYTES) -#else -#define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES -#endif - -#define ARCH_DMA_MINALIGN L1_CACHE_BYTES - -/* data cache purge registers - * - read from the register to unconditionally purge that cache line - * - write address & 0xffffff00 to conditionally purge that cache line - * - clear LSB to request invalidation as well - */ -#define DCACHE_PURGE(WAY, ENTRY) \ - __SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \ - (ENTRY) * L1_CACHE_BYTES, u32) - -#define DCACHE_PURGE_WAY0(ENTRY) \ - __SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) -#define DCACHE_PURGE_WAY1(ENTRY) \ - __SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) -#define DCACHE_PURGE_WAY2(ENTRY) \ - __SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) -#define DCACHE_PURGE_WAY3(ENTRY) \ - __SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32) - -/* instruction cache access registers */ -#define ICACHE_DATA(WAY, ENTRY, OFF) \ - __SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + \ - (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32) -#define ICACHE_TAG(WAY, ENTRY) \ - __SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + \ - (ENTRY) * L1_CACHE_BYTES, u32) - -/* data cache access registers */ -#define DCACHE_DATA(WAY, ENTRY, OFF) \ - __SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + \ - (ENTRY) * L1_CACHE_BYTES + (OFF) * 4, u32) -#define DCACHE_TAG(WAY, ENTRY) \ - __SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + \ - (ENTRY) * L1_CACHE_BYTES, u32) - -#endif /* _ASM_CACHE_H */ diff --git a/arch/mn10300/include/asm/cacheflush.h b/arch/mn10300/include/asm/cacheflush.h deleted file mode 100644 index 6d6df839948f..000000000000 --- a/arch/mn10300/include/asm/cacheflush.h +++ /dev/null @@ -1,164 +0,0 @@ -/* MN10300 Cache flushing - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CACHEFLUSH_H -#define _ASM_CACHEFLUSH_H - -#ifndef __ASSEMBLY__ - -/* Keep includes the same across arches. */ -#include <linux/mm.h> - -/* - * Primitive routines - */ -#ifdef CONFIG_MN10300_CACHE_ENABLED -extern void mn10300_local_icache_inv(void); -extern void mn10300_local_icache_inv_page(unsigned long start); -extern void mn10300_local_icache_inv_range(unsigned long start, unsigned long end); -extern void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size); -extern void mn10300_local_dcache_inv(void); -extern void mn10300_local_dcache_inv_page(unsigned long start); -extern void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end); -extern void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size); -extern void mn10300_icache_inv(void); -extern void mn10300_icache_inv_page(unsigned long start); -extern void mn10300_icache_inv_range(unsigned long start, unsigned long end); -extern void mn10300_icache_inv_range2(unsigned long start, unsigned long size); -extern void mn10300_dcache_inv(void); -extern void mn10300_dcache_inv_page(unsigned long start); -extern void mn10300_dcache_inv_range(unsigned long start, unsigned long end); -extern void mn10300_dcache_inv_range2(unsigned long start, unsigned long size); -#ifdef CONFIG_MN10300_CACHE_WBACK -extern void mn10300_local_dcache_flush(void); -extern void mn10300_local_dcache_flush_page(unsigned long start); -extern void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end); -extern void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size); -extern void mn10300_local_dcache_flush_inv(void); -extern void mn10300_local_dcache_flush_inv_page(unsigned long start); -extern void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end); -extern void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size); -extern void mn10300_dcache_flush(void); -extern void mn10300_dcache_flush_page(unsigned long start); -extern void mn10300_dcache_flush_range(unsigned long start, unsigned long end); -extern void mn10300_dcache_flush_range2(unsigned long start, unsigned long size); -extern void mn10300_dcache_flush_inv(void); -extern void mn10300_dcache_flush_inv_page(unsigned long start); -extern void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end); -extern void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size); -#else -#define mn10300_local_dcache_flush() do {} while (0) -#define mn10300_local_dcache_flush_page(start) do {} while (0) -#define mn10300_local_dcache_flush_range(start, end) do {} while (0) -#define mn10300_local_dcache_flush_range2(start, size) do {} while (0) -#define mn10300_local_dcache_flush_inv() \ - mn10300_local_dcache_inv() -#define mn10300_local_dcache_flush_inv_page(start) \ - mn10300_local_dcache_inv_page(start) -#define mn10300_local_dcache_flush_inv_range(start, end) \ - mn10300_local_dcache_inv_range(start, end) -#define mn10300_local_dcache_flush_inv_range2(start, size) \ - mn10300_local_dcache_inv_range2(start, size) -#define mn10300_dcache_flush() do {} while (0) -#define mn10300_dcache_flush_page(start) do {} while (0) -#define mn10300_dcache_flush_range(start, end) do {} while (0) -#define mn10300_dcache_flush_range2(start, size) do {} while (0) -#define mn10300_dcache_flush_inv() mn10300_dcache_inv() -#define mn10300_dcache_flush_inv_page(start) \ - mn10300_dcache_inv_page((start)) -#define mn10300_dcache_flush_inv_range(start, end) \ - mn10300_dcache_inv_range((start), (end)) -#define mn10300_dcache_flush_inv_range2(start, size) \ - mn10300_dcache_inv_range2((start), (size)) -#endif /* CONFIG_MN10300_CACHE_WBACK */ -#else -#define mn10300_local_icache_inv() do {} while (0) -#define mn10300_local_icache_inv_page(start) do {} while (0) -#define mn10300_local_icache_inv_range(start, end) do {} while (0) -#define mn10300_local_icache_inv_range2(start, size) do {} while (0) -#define mn10300_local_dcache_inv() do {} while (0) -#define mn10300_local_dcache_inv_page(start) do {} while (0) -#define mn10300_local_dcache_inv_range(start, end) do {} while (0) -#define mn10300_local_dcache_inv_range2(start, size) do {} while (0) -#define mn10300_local_dcache_flush() do {} while (0) -#define mn10300_local_dcache_flush_inv_page(start) do {} while (0) -#define mn10300_local_dcache_flush_inv() do {} while (0) -#define mn10300_local_dcache_flush_inv_range(start, end)do {} while (0) -#define mn10300_local_dcache_flush_inv_range2(start, size) do {} while (0) -#define mn10300_local_dcache_flush_page(start) do {} while (0) -#define mn10300_local_dcache_flush_range(start, end) do {} while (0) -#define mn10300_local_dcache_flush_range2(start, size) do {} while (0) -#define mn10300_icache_inv() do {} while (0) -#define mn10300_icache_inv_page(start) do {} while (0) -#define mn10300_icache_inv_range(start, end) do {} while (0) -#define mn10300_icache_inv_range2(start, size) do {} while (0) -#define mn10300_dcache_inv() do {} while (0) -#define mn10300_dcache_inv_page(start) do {} while (0) -#define mn10300_dcache_inv_range(start, end) do {} while (0) -#define mn10300_dcache_inv_range2(start, size) do {} while (0) -#define mn10300_dcache_flush() do {} while (0) -#define mn10300_dcache_flush_inv_page(start) do {} while (0) -#define mn10300_dcache_flush_inv() do {} while (0) -#define mn10300_dcache_flush_inv_range(start, end) do {} while (0) -#define mn10300_dcache_flush_inv_range2(start, size) do {} while (0) -#define mn10300_dcache_flush_page(start) do {} while (0) -#define mn10300_dcache_flush_range(start, end) do {} while (0) -#define mn10300_dcache_flush_range2(start, size) do {} while (0) -#endif /* CONFIG_MN10300_CACHE_ENABLED */ - -/* - * Virtually-indexed cache management (our cache is physically indexed) - */ -#define flush_cache_all() do {} while (0) -#define flush_cache_mm(mm) do {} while (0) -#define flush_cache_dup_mm(mm) do {} while (0) -#define flush_cache_range(mm, start, end) do {} while (0) -#define flush_cache_page(vma, vmaddr, pfn) do {} while (0) -#define flush_cache_vmap(start, end) do {} while (0) -#define flush_cache_vunmap(start, end) do {} while (0) -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -#define flush_dcache_page(page) do {} while (0) -#define flush_dcache_mmap_lock(mapping) do {} while (0) -#define flush_dcache_mmap_unlock(mapping) do {} while (0) - -/* - * Physically-indexed cache management - */ -#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) -extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); -extern void flush_icache_range(unsigned long start, unsigned long end); -#elif defined(CONFIG_MN10300_CACHE_INV_ICACHE) -static inline void flush_icache_page(struct vm_area_struct *vma, - struct page *page) -{ - mn10300_icache_inv_page(page_to_phys(page)); -} -extern void flush_icache_range(unsigned long start, unsigned long end); -#else -#define flush_icache_range(start, end) do {} while (0) -#define flush_icache_page(vma, pg) do {} while (0) -#endif - - -#define flush_icache_user_range(vma, pg, adr, len) \ - flush_icache_range(adr, adr + len) - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - memcpy(dst, src, len); \ - flush_icache_page(vma, page); \ - } while (0) - -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_CACHEFLUSH_H */ diff --git a/arch/mn10300/include/asm/checksum.h b/arch/mn10300/include/asm/checksum.h deleted file mode 100644 index c80df5b504ac..000000000000 --- a/arch/mn10300/include/asm/checksum.h +++ /dev/null @@ -1,79 +0,0 @@ -/* MN10300 Optimised checksumming code - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CHECKSUM_H -#define _ASM_CHECKSUM_H - -extern __wsum csum_partial(const void *buff, int len, __wsum sum); -extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum); -extern __wsum csum_partial_copy_from_user(const void *src, void *dst, - int len, __wsum sum, - int *err_ptr); -extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); -extern __wsum csum_partial(const void *buff, int len, __wsum sum); -extern __sum16 ip_compute_csum(const void *buff, int len); - -#define csum_partial_copy_fromuser csum_partial_copy -extern __wsum csum_partial_copy(const void *src, void *dst, int len, - __wsum sum); - -static inline __sum16 csum_fold(__wsum sum) -{ - asm( - " add %1,%0 \n" - " addc 0xffff,%0 \n" - : "=r" (sum) - : "r" (sum << 16), "0" (sum & 0xffff0000) - : "cc" - ); - return (~sum) >> 16; -} - -static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - __u32 len, __u8 proto, - __wsum sum) -{ - __wsum tmp = (__wsum)((len + proto) << 8); - - asm( - " add %1,%0 \n" - " addc %2,%0 \n" - " addc %3,%0 \n" - " addc 0,%0 \n" - : "=r" (sum) - : "r" (daddr), "r"(saddr), "r"(tmp), "0"(sum) - : "cc" - ); - return sum; -} - -/* - * computes the checksum of the TCP/UDP pseudo-header - * returns a 16-bit checksum, already complemented - */ -static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - __u32 len, __u8 proto, - __wsum sum) -{ - return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); -} - -#undef _HAVE_ARCH_IPV6_CSUM - -/* - * Copy and checksum to user - */ -#define HAVE_CSUM_COPY_USER -extern __wsum csum_and_copy_to_user(const void *src, void *dst, int len, - __wsum sum, int *err_ptr); - - -#endif /* _ASM_CHECKSUM_H */ diff --git a/arch/mn10300/include/asm/cmpxchg.h b/arch/mn10300/include/asm/cmpxchg.h deleted file mode 100644 index 97a4aaf387a6..000000000000 --- a/arch/mn10300/include/asm/cmpxchg.h +++ /dev/null @@ -1,115 +0,0 @@ -/* MN10300 Atomic xchg/cmpxchg operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CMPXCHG_H -#define _ASM_CMPXCHG_H - -#include <asm/irqflags.h> - -#ifdef CONFIG_SMP -#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT -static inline -unsigned long __xchg(volatile unsigned long *m, unsigned long val) -{ - unsigned long status; - unsigned long oldval; - - asm volatile( - "1: mov %4,(_AAR,%3) \n" - " mov (_ADR,%3),%1 \n" - " mov %5,(_ADR,%3) \n" - " mov (_ADR,%3),%0 \n" /* flush */ - " mov (_ASR,%3),%0 \n" - " or %0,%0 \n" - " bne 1b \n" - : "=&r"(status), "=&r"(oldval), "=m"(*m) - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(m), "r"(val) - : "memory", "cc"); - - return oldval; -} - -static inline unsigned long __cmpxchg(volatile unsigned long *m, - unsigned long old, unsigned long new) -{ - unsigned long status; - unsigned long oldval; - - asm volatile( - "1: mov %4,(_AAR,%3) \n" - " mov (_ADR,%3),%1 \n" - " cmp %5,%1 \n" - " bne 2f \n" - " mov %6,(_ADR,%3) \n" - "2: mov (_ADR,%3),%0 \n" /* flush */ - " mov (_ASR,%3),%0 \n" - " or %0,%0 \n" - " bne 1b \n" - : "=&r"(status), "=&r"(oldval), "=m"(*m) - : "a"(ATOMIC_OPS_BASE_ADDR), "r"(m), - "r"(old), "r"(new) - : "memory", "cc"); - - return oldval; -} -#else /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */ -#error "No SMP atomic operation support!" -#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */ - -#else /* CONFIG_SMP */ - -/* - * Emulate xchg for non-SMP MN10300 - */ -struct __xchg_dummy { unsigned long a[100]; }; -#define __xg(x) ((struct __xchg_dummy *)(x)) - -static inline -unsigned long __xchg(volatile unsigned long *m, unsigned long val) -{ - unsigned long oldval; - unsigned long flags; - - flags = arch_local_cli_save(); - oldval = *m; - *m = val; - arch_local_irq_restore(flags); - return oldval; -} - -/* - * Emulate cmpxchg for non-SMP MN10300 - */ -static inline unsigned long __cmpxchg(volatile unsigned long *m, - unsigned long old, unsigned long new) -{ - unsigned long oldval; - unsigned long flags; - - flags = arch_local_cli_save(); - oldval = *m; - if (oldval == old) - *m = new; - arch_local_irq_restore(flags); - return oldval; -} - -#endif /* CONFIG_SMP */ - -#define xchg(ptr, v) \ - ((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \ - (unsigned long)(v))) - -#define cmpxchg(ptr, o, n) \ - ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \ - (unsigned long)(o), \ - (unsigned long)(n))) - -#endif /* _ASM_CMPXCHG_H */ diff --git a/arch/mn10300/include/asm/cpu-regs.h b/arch/mn10300/include/asm/cpu-regs.h deleted file mode 100644 index c54effae2202..000000000000 --- a/arch/mn10300/include/asm/cpu-regs.h +++ /dev/null @@ -1,353 +0,0 @@ -/* MN10300 Core system registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CPU_REGS_H -#define _ASM_CPU_REGS_H - -#ifndef __ASSEMBLY__ -#include <linux/types.h> -#endif - -/* we tell the compiler to pretend to be AM33 so that it doesn't try and use - * the FP regs, but tell the assembler that we're actually allowed AM33v2 - * instructions */ -#ifndef __ASSEMBLY__ -asm(" .am33_2\n"); -#else -.am33_2 -#endif - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ -#define __SYSREG(ADDR, TYPE) (*(volatile TYPE *)(ADDR)) -#define __SYSREGC(ADDR, TYPE) (*(const volatile TYPE *)(ADDR)) -#else -#define __SYSREG(ADDR, TYPE) ADDR -#define __SYSREGC(ADDR, TYPE) ADDR -#endif - -/* CPU registers */ -#define EPSW_FLAG_Z 0x00000001 /* zero flag */ -#define EPSW_FLAG_N 0x00000002 /* negative flag */ -#define EPSW_FLAG_C 0x00000004 /* carry flag */ -#define EPSW_FLAG_V 0x00000008 /* overflow flag */ -#define EPSW_IM 0x00000700 /* interrupt mode */ -#define EPSW_IM_0 0x00000000 /* interrupt mode 0 */ -#define EPSW_IM_1 0x00000100 /* interrupt mode 1 */ -#define EPSW_IM_2 0x00000200 /* interrupt mode 2 */ -#define EPSW_IM_3 0x00000300 /* interrupt mode 3 */ -#define EPSW_IM_4 0x00000400 /* interrupt mode 4 */ -#define EPSW_IM_5 0x00000500 /* interrupt mode 5 */ -#define EPSW_IM_6 0x00000600 /* interrupt mode 6 */ -#define EPSW_IM_7 0x00000700 /* interrupt mode 7 */ -#define EPSW_IE 0x00000800 /* interrupt enable */ -#define EPSW_S 0x00003000 /* software auxiliary bits */ -#define EPSW_T 0x00008000 /* trace enable */ -#define EPSW_nSL 0x00010000 /* not supervisor level */ -#define EPSW_NMID 0x00020000 /* nonmaskable interrupt disable */ -#define EPSW_nAR 0x00040000 /* register bank control */ -#define EPSW_ML 0x00080000 /* monitor level */ -#define EPSW_FE 0x00100000 /* FPU enable */ -#define EPSW_IM_SHIFT 8 /* EPSW_IM_SHIFT determines the interrupt mode */ - -#define NUM2EPSW_IM(num) ((num) << EPSW_IM_SHIFT) - -/* FPU registers */ -#define FPCR_EF_I 0x00000001 /* inexact result FPU exception flag */ -#define FPCR_EF_U 0x00000002 /* underflow FPU exception flag */ -#define FPCR_EF_O 0x00000004 /* overflow FPU exception flag */ -#define FPCR_EF_Z 0x00000008 /* zero divide FPU exception flag */ -#define FPCR_EF_V 0x00000010 /* invalid operand FPU exception flag */ -#define FPCR_EE_I 0x00000020 /* inexact result FPU exception enable */ -#define FPCR_EE_U 0x00000040 /* underflow FPU exception enable */ -#define FPCR_EE_O 0x00000080 /* overflow FPU exception enable */ -#define FPCR_EE_Z 0x00000100 /* zero divide FPU exception enable */ -#define FPCR_EE_V 0x00000200 /* invalid operand FPU exception enable */ -#define FPCR_EC_I 0x00000400 /* inexact result FPU exception cause */ -#define FPCR_EC_U 0x00000800 /* underflow FPU exception cause */ -#define FPCR_EC_O 0x00001000 /* overflow FPU exception cause */ -#define FPCR_EC_Z 0x00002000 /* zero divide FPU exception cause */ -#define FPCR_EC_V 0x00004000 /* invalid operand FPU exception cause */ -#define FPCR_RM 0x00030000 /* rounding mode */ -#define FPCR_RM_NEAREST 0x00000000 /* - round to nearest value */ -#define FPCR_FCC_U 0x00040000 /* FPU unordered condition code */ -#define FPCR_FCC_E 0x00080000 /* FPU equal condition code */ -#define FPCR_FCC_G 0x00100000 /* FPU greater than condition code */ -#define FPCR_FCC_L 0x00200000 /* FPU less than condition code */ -#define FPCR_INIT 0x00000000 /* no exceptions, rounding to nearest */ - -/* CPU control registers */ -#define CPUP __SYSREG(0xc0000020, u16) /* CPU pipeline register */ -#define CPUP_DWBD 0x0020 /* write buffer disable flag */ -#define CPUP_IPFD 0x0040 /* instruction prefetch disable flag */ -#define CPUP_EXM 0x0080 /* exception operation mode */ -#define CPUP_EXM_AM33V1 0x0000 /* - AM33 v1 exception mode */ -#define CPUP_EXM_AM33V2 0x0080 /* - AM33 v2 exception mode */ - -#define CPUM __SYSREG(0xc0000040, u16) /* CPU mode register */ -#define CPUM_SLEEP 0x0004 /* set to enter sleep state */ -#define CPUM_HALT 0x0008 /* set to enter halt state */ -#define CPUM_STOP 0x0010 /* set to enter stop state */ - -#define CPUREV __SYSREGC(0xc0000050, u32) /* CPU revision register */ -#define CPUREV_TYPE 0x0000000f /* CPU type */ -#define CPUREV_TYPE_S 0 -#define CPUREV_TYPE_AM33_1 0x00000000 /* - AM33-1 core, AM33/1.00 arch */ -#define CPUREV_TYPE_AM33_2 0x00000001 /* - AM33-2 core, AM33/2.00 arch */ -#define CPUREV_TYPE_AM34_1 0x00000002 /* - AM34-1 core, AM33/2.00 arch */ -#define CPUREV_TYPE_AM33_3 0x00000003 /* - AM33-3 core, AM33/2.00 arch */ -#define CPUREV_TYPE_AM34_2 0x00000004 /* - AM34-2 core, AM33/3.00 arch */ -#define CPUREV_REVISION 0x000000f0 /* CPU revision */ -#define CPUREV_REVISION_S 4 -#define CPUREV_ICWAY 0x00000f00 /* number of instruction cache ways */ -#define CPUREV_ICWAY_S 8 -#define CPUREV_ICSIZE 0x0000f000 /* instruction cache way size */ -#define CPUREV_ICSIZE_S 12 -#define CPUREV_DCWAY 0x000f0000 /* number of data cache ways */ -#define CPUREV_DCWAY_S 16 -#define CPUREV_DCSIZE 0x00f00000 /* data cache way size */ -#define CPUREV_DCSIZE_S 20 -#define CPUREV_FPUTYPE 0x0f000000 /* FPU core type */ -#define CPUREV_FPUTYPE_NONE 0x00000000 /* - no FPU core implemented */ -#define CPUREV_OCDCTG 0xf0000000 /* on-chip debug function category */ - -#define DCR __SYSREG(0xc0000030, u16) /* Debug control register */ - -/* interrupt/exception control registers */ -#define IVAR0 __SYSREG(0xc0000000, u16) /* interrupt vector 0 */ -#define IVAR1 __SYSREG(0xc0000004, u16) /* interrupt vector 1 */ -#define IVAR2 __SYSREG(0xc0000008, u16) /* interrupt vector 2 */ -#define IVAR3 __SYSREG(0xc000000c, u16) /* interrupt vector 3 */ -#define IVAR4 __SYSREG(0xc0000010, u16) /* interrupt vector 4 */ -#define IVAR5 __SYSREG(0xc0000014, u16) /* interrupt vector 5 */ -#define IVAR6 __SYSREG(0xc0000018, u16) /* interrupt vector 6 */ - -#define TBR __SYSREG(0xc0000024, u32) /* Trap table base */ -#define TBR_TB 0xff000000 /* table base address bits 31-24 */ -#define TBR_INT_CODE 0x00ffffff /* interrupt code */ - -#define DEAR __SYSREG(0xc0000038, u32) /* Data access exception address */ - -#define sISR __SYSREG(0xc0000044, u32) /* Supervisor interrupt status */ -#define sISR_IRQICE 0x00000001 /* ICE interrupt */ -#define sISR_ISTEP 0x00000002 /* single step interrupt */ -#define sISR_MISSA 0x00000004 /* memory access address misalignment fault */ -#define sISR_UNIMP 0x00000008 /* unimplemented instruction execution fault */ -#define sISR_PIEXE 0x00000010 /* program interrupt */ -#define sISR_MEMERR 0x00000020 /* illegal memory access fault */ -#define sISR_IBREAK 0x00000040 /* instraction break interrupt */ -#define sISR_DBSRL 0x00000080 /* debug serial interrupt */ -#define sISR_PERIDB 0x00000100 /* peripheral debug interrupt */ -#define sISR_EXUNIMP 0x00000200 /* unimplemented ex-instruction execution fault */ -#define sISR_OBREAK 0x00000400 /* operand break interrupt */ -#define sISR_PRIV 0x00000800 /* privileged instruction execution fault */ -#define sISR_BUSERR 0x00001000 /* bus error fault */ -#define sISR_DBLFT 0x00002000 /* double fault */ -#define sISR_DBG 0x00008000 /* debug reserved interrupt */ -#define sISR_ITMISS 0x00010000 /* instruction TLB miss */ -#define sISR_DTMISS 0x00020000 /* data TLB miss */ -#define sISR_ITEX 0x00040000 /* instruction TLB access exception */ -#define sISR_DTEX 0x00080000 /* data TLB access exception */ -#define sISR_ILGIA 0x00100000 /* illegal instruction access exception */ -#define sISR_ILGDA 0x00200000 /* illegal data access exception */ -#define sISR_IOIA 0x00400000 /* internal I/O space instruction access excep */ -#define sISR_PRIVA 0x00800000 /* privileged space instruction access excep */ -#define sISR_PRIDA 0x01000000 /* privileged space data access excep */ -#define sISR_DISA 0x02000000 /* data space instruction access excep */ -#define sISR_SYSC 0x04000000 /* system call instruction excep */ -#define sISR_FPUD 0x08000000 /* FPU disabled excep */ -#define sISR_FPUUI 0x10000000 /* FPU unimplemented instruction excep */ -#define sISR_FPUOP 0x20000000 /* FPU operation excep */ -#define sISR_NE 0x80000000 /* multiple synchronous exceptions excep */ - -/* cache control registers */ -#define CHCTR __SYSREG(0xc0000070, u16) /* cache control */ -#define CHCTR_ICEN 0x0001 /* instruction cache enable */ -#define CHCTR_DCEN 0x0002 /* data cache enable */ -#define CHCTR_ICBUSY 0x0004 /* instruction cache busy */ -#define CHCTR_DCBUSY 0x0008 /* data cache busy */ -#define CHCTR_ICINV 0x0010 /* instruction cache invalidate */ -#define CHCTR_DCINV 0x0020 /* data cache invalidate */ -#define CHCTR_DCWTMD 0x0040 /* data cache writing mode */ -#define CHCTR_DCWTMD_WRBACK 0x0000 /* - write back mode */ -#define CHCTR_DCWTMD_WRTHROUGH 0x0040 /* - write through mode */ -#define CHCTR_DCALMD 0x0080 /* data cache allocation mode */ -#define CHCTR_ICWMD 0x0f00 /* instruction cache way mode */ -#define CHCTR_DCWMD 0xf000 /* data cache way mode */ - -#ifdef CONFIG_AM34_2 -#define ICIVCR __SYSREG(0xc0000c00, u32) /* icache area invalidate control */ -#define ICIVCR_ICIVBSY 0x00000008 /* icache area invalidate busy */ -#define ICIVCR_ICI 0x00000001 /* icache area invalidate */ - -#define ICIVMR __SYSREG(0xc0000c04, u32) /* icache area invalidate mask */ - -#define DCPGCR __SYSREG(0xc0000c10, u32) /* data cache area purge control */ -#define DCPGCR_DCPGBSY 0x00000008 /* data cache area purge busy */ -#define DCPGCR_DCP 0x00000002 /* data cache area purge */ -#define DCPGCR_DCI 0x00000001 /* data cache area invalidate */ - -#define DCPGMR __SYSREG(0xc0000c14, u32) /* data cache area purge mask */ -#endif /* CONFIG_AM34_2 */ - -/* MMU control registers */ -#define MMUCTR __SYSREG(0xc0000090, u32) /* MMU control register */ -#define MMUCTR_IRP 0x0000003f /* instruction TLB replace pointer */ -#define MMUCTR_ITE 0x00000040 /* instruction TLB enable */ -#define MMUCTR_IIV 0x00000080 /* instruction TLB invalidate */ -#define MMUCTR_ITL 0x00000700 /* instruction TLB lock pointer */ -#define MMUCTR_ITL_NOLOCK 0x00000000 /* - no lock */ -#define MMUCTR_ITL_LOCK0 0x00000100 /* - entry 0 locked */ -#define MMUCTR_ITL_LOCK0_1 0x00000200 /* - entry 0-1 locked */ -#define MMUCTR_ITL_LOCK0_3 0x00000300 /* - entry 0-3 locked */ -#define MMUCTR_ITL_LOCK0_7 0x00000400 /* - entry 0-7 locked */ -#define MMUCTR_ITL_LOCK0_15 0x00000500 /* - entry 0-15 locked */ -#define MMUCTR_CE 0x00008000 /* cacheable bit enable */ -#define MMUCTR_DRP 0x003f0000 /* data TLB replace pointer */ -#define MMUCTR_DTE 0x00400000 /* data TLB enable */ -#define MMUCTR_DIV 0x00800000 /* data TLB invalidate */ -#define MMUCTR_DTL 0x07000000 /* data TLB lock pointer */ -#define MMUCTR_DTL_NOLOCK 0x00000000 /* - no lock */ -#define MMUCTR_DTL_LOCK0 0x01000000 /* - entry 0 locked */ -#define MMUCTR_DTL_LOCK0_1 0x02000000 /* - entry 0-1 locked */ -#define MMUCTR_DTL_LOCK0_3 0x03000000 /* - entry 0-3 locked */ -#define MMUCTR_DTL_LOCK0_7 0x04000000 /* - entry 0-7 locked */ -#define MMUCTR_DTL_LOCK0_15 0x05000000 /* - entry 0-15 locked */ -#ifdef CONFIG_AM34_2 -#define MMUCTR_WTE 0x80000000 /* write-through cache TLB entry bit enable */ -#endif - -#define PIDR __SYSREG(0xc0000094, u16) /* PID register */ -#define PIDR_PID 0x00ff /* process identifier */ - -#define PTBR __SYSREG(0xc0000098, unsigned long) /* Page table base register */ - -#define IPTEL __SYSREG(0xc00000a0, u32) /* instruction TLB entry */ -#define DPTEL __SYSREG(0xc00000b0, u32) /* data TLB entry */ -#define xPTEL_V 0x00000001 /* TLB entry valid */ -#define xPTEL_UNUSED1 0x00000002 /* unused bit */ -#define xPTEL_UNUSED2 0x00000004 /* unused bit */ -#define xPTEL_C 0x00000008 /* cached if set */ -#define xPTEL_PV 0x00000010 /* page valid */ -#define xPTEL_D 0x00000020 /* dirty */ -#define xPTEL_PR 0x000001c0 /* page protection */ -#define xPTEL_PR_ROK 0x00000000 /* - R/O kernel */ -#define xPTEL_PR_RWK 0x00000100 /* - R/W kernel */ -#define xPTEL_PR_ROK_ROU 0x00000080 /* - R/O kernel and R/O user */ -#define xPTEL_PR_RWK_ROU 0x00000180 /* - R/W kernel and R/O user */ -#define xPTEL_PR_RWK_RWU 0x000001c0 /* - R/W kernel and R/W user */ -#define xPTEL_G 0x00000200 /* global (use PID if 0) */ -#define xPTEL_PS 0x00000c00 /* page size */ -#define xPTEL_PS_4Kb 0x00000000 /* - 4Kb page */ -#define xPTEL_PS_128Kb 0x00000400 /* - 128Kb page */ -#define xPTEL_PS_1Kb 0x00000800 /* - 1Kb page */ -#define xPTEL_PS_4Mb 0x00000c00 /* - 4Mb page */ -#define xPTEL_PPN 0xfffff006 /* physical page number */ - -#define IPTEU __SYSREG(0xc00000a4, u32) /* instruction TLB virtual addr */ -#define DPTEU __SYSREG(0xc00000b4, u32) /* data TLB virtual addr */ -#define xPTEU_VPN 0xfffffc00 /* virtual page number */ -#define xPTEU_PID 0x000000ff /* process identifier to which applicable */ - -#define IPTEL2 __SYSREG(0xc00000a8, u32) /* instruction TLB entry */ -#define DPTEL2 __SYSREG(0xc00000b8, u32) /* data TLB entry */ -#define xPTEL2_V 0x00000001 /* TLB entry valid */ -#define xPTEL2_C 0x00000002 /* cacheable */ -#define xPTEL2_PV 0x00000004 /* page valid */ -#define xPTEL2_D 0x00000008 /* dirty */ -#define xPTEL2_PR 0x00000070 /* page protection */ -#define xPTEL2_PR_ROK 0x00000000 /* - R/O kernel */ -#define xPTEL2_PR_RWK 0x00000040 /* - R/W kernel */ -#define xPTEL2_PR_ROK_ROU 0x00000020 /* - R/O kernel and R/O user */ -#define xPTEL2_PR_RWK_ROU 0x00000060 /* - R/W kernel and R/O user */ -#define xPTEL2_PR_RWK_RWU 0x00000070 /* - R/W kernel and R/W user */ -#define xPTEL2_G 0x00000080 /* global (use PID if 0) */ -#define xPTEL2_PS 0x00000300 /* page size */ -#define xPTEL2_PS_4Kb 0x00000000 /* - 4Kb page */ -#define xPTEL2_PS_128Kb 0x00000100 /* - 128Kb page */ -#define xPTEL2_PS_1Kb 0x00000200 /* - 1Kb page */ -#define xPTEL2_PS_4Mb 0x00000300 /* - 4Mb page */ -#define xPTEL2_CWT 0x00000400 /* cacheable write-through */ -#define xPTEL2_UNUSED1 0x00000800 /* unused bit (broadcast mask) */ -#define xPTEL2_PPN 0xfffff000 /* physical page number */ - -#define xPTEL2_V_BIT 0 /* bit numbers corresponding to above masks */ -#define xPTEL2_C_BIT 1 -#define xPTEL2_PV_BIT 2 -#define xPTEL2_D_BIT 3 -#define xPTEL2_G_BIT 7 -#define xPTEL2_UNUSED1_BIT 11 - -#define MMUFCR __SYSREGC(0xc000009c, u32) /* MMU exception cause */ -#define MMUFCR_IFC __SYSREGC(0xc000009c, u16) /* MMU instruction excep cause */ -#define MMUFCR_DFC __SYSREGC(0xc000009e, u16) /* MMU data exception cause */ -#define MMUFCR_xFC_TLBMISS 0x0001 /* TLB miss flag */ -#define MMUFCR_xFC_INITWR 0x0002 /* initial write excep flag */ -#define MMUFCR_xFC_PGINVAL 0x0004 /* page invalid excep flag */ -#define MMUFCR_xFC_PROTVIOL 0x0008 /* protection violation excep flag */ -#define MMUFCR_xFC_ACCESS 0x0010 /* access level flag */ -#define MMUFCR_xFC_ACCESS_USR 0x0000 /* - user mode */ -#define MMUFCR_xFC_ACCESS_SR 0x0010 /* - supervisor mode */ -#define MMUFCR_xFC_TYPE 0x0020 /* access type flag */ -#define MMUFCR_xFC_TYPE_READ 0x0000 /* - read */ -#define MMUFCR_xFC_TYPE_WRITE 0x0020 /* - write */ -#define MMUFCR_xFC_PR 0x01c0 /* page protection flag */ -#define MMUFCR_xFC_PR_ROK 0x0000 /* - R/O kernel */ -#define MMUFCR_xFC_PR_RWK 0x0100 /* - R/W kernel */ -#define MMUFCR_xFC_PR_ROK_ROU 0x0080 /* - R/O kernel and R/O user */ -#define MMUFCR_xFC_PR_RWK_ROU 0x0180 /* - R/W kernel and R/O user */ -#define MMUFCR_xFC_PR_RWK_RWU 0x01c0 /* - R/W kernel and R/W user */ -#define MMUFCR_xFC_ILLADDR 0x0200 /* illegal address excep flag */ - -#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT -/* atomic operation registers */ -#define AAR __SYSREG(0xc0000a00, u32) /* cacheable address */ -#define AAR2 __SYSREG(0xc0000a04, u32) /* uncacheable address */ -#define ADR __SYSREG(0xc0000a08, u32) /* data */ -#define ASR __SYSREG(0xc0000a0c, u32) /* status */ -#define AARU __SYSREG(0xd400aa00, u32) /* user address */ -#define ADRU __SYSREG(0xd400aa08, u32) /* user data */ -#define ASRU __SYSREG(0xd400aa0c, u32) /* user status */ - -#define ASR_RW 0x00000008 /* read */ -#define ASR_BW 0x00000004 /* bus error */ -#define ASR_IW 0x00000002 /* interrupt */ -#define ASR_LW 0x00000001 /* bus lock */ - -#define ASRU_RW ASR_RW /* read */ -#define ASRU_BW ASR_BW /* bus error */ -#define ASRU_IW ASR_IW /* interrupt */ -#define ASRU_LW ASR_LW /* bus lock */ - -/* in inline ASM, we stick the base pointer in to a reg and use offsets from - * it */ -#define ATOMIC_OPS_BASE_ADDR 0xc0000a00 -#ifndef __ASSEMBLY__ -asm( - "_AAR = 0\n" - "_AAR2 = 4\n" - "_ADR = 8\n" - "_ASR = 12\n"); -#else -#define _AAR 0 -#define _AAR2 4 -#define _ADR 8 -#define _ASR 12 -#endif - -/* physical page address for userspace atomic operations registers */ -#define USER_ATOMIC_OPS_PAGE_ADDR 0xd400a000 - -#endif /* CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_CPU_REGS_H */ diff --git a/arch/mn10300/include/asm/current.h b/arch/mn10300/include/asm/current.h deleted file mode 100644 index ca6027d83743..000000000000 --- a/arch/mn10300/include/asm/current.h +++ /dev/null @@ -1,37 +0,0 @@ -/* MN10300 Current task structure accessor - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_CURRENT_H -#define _ASM_CURRENT_H - -#include <linux/thread_info.h> - -/* - * dedicate E2 to keeping the current task pointer - */ -#ifdef CONFIG_MN10300_CURRENT_IN_E2 - -register struct task_struct *const current asm("e2") __attribute__((used)); - -#define get_current() current - -extern struct task_struct *__current; - -#else -static inline __attribute__((const)) -struct task_struct *get_current(void) -{ - return current_thread_info()->task; -} - -#define current get_current() -#endif - -#endif /* _ASM_CURRENT_H */ diff --git a/arch/mn10300/include/asm/debugger.h b/arch/mn10300/include/asm/debugger.h deleted file mode 100644 index e1d3b083696c..000000000000 --- a/arch/mn10300/include/asm/debugger.h +++ /dev/null @@ -1,43 +0,0 @@ -/* Kernel debugger for MN10300 - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_DEBUGGER_H -#define _ASM_DEBUGGER_H - -#if defined(CONFIG_KERNEL_DEBUGGER) - -extern int debugger_intercept(enum exception_code, int, int, struct pt_regs *); -extern int at_debugger_breakpoint(struct pt_regs *); - -#ifndef CONFIG_MN10300_DEBUGGER_CACHE_NO_FLUSH -extern void debugger_local_cache_flushinv(void); -extern void debugger_local_cache_flushinv_one(u8 *); -#else -static inline void debugger_local_cache_flushinv(void) {} -static inline void debugger_local_cache_flushinv_one(u8 *addr) {} -#endif - -#else /* CONFIG_KERNEL_DEBUGGER */ - -static inline int debugger_intercept(enum exception_code excep, - int signo, int si_code, - struct pt_regs *regs) -{ - return 0; -} - -static inline int at_debugger_breakpoint(struct pt_regs *regs) -{ - return 0; -} - -#endif /* CONFIG_KERNEL_DEBUGGER */ -#endif /* _ASM_DEBUGGER_H */ diff --git a/arch/mn10300/include/asm/delay.h b/arch/mn10300/include/asm/delay.h deleted file mode 100644 index 34517b359399..000000000000 --- a/arch/mn10300/include/asm/delay.h +++ /dev/null @@ -1,19 +0,0 @@ -/* MN10300 Uninterruptible delay routines - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DELAY_H -#define _ASM_DELAY_H - -extern void __udelay(unsigned long usecs); -extern void __delay(unsigned long loops); - -#define udelay(n) __udelay(n) - -#endif /* _ASM_DELAY_H */ diff --git a/arch/mn10300/include/asm/div64.h b/arch/mn10300/include/asm/div64.h deleted file mode 100644 index 503efab2a516..000000000000 --- a/arch/mn10300/include/asm/div64.h +++ /dev/null @@ -1,115 +0,0 @@ -/* MN10300 64-bit division - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DIV64 -#define _ASM_DIV64 - -#include <linux/types.h> - -extern void ____unhandled_size_in_do_div___(void); - -/* - * Beginning with gcc 4.6, the MDR register is represented explicitly. We - * must, therefore, at least explicitly clobber the register when we make - * changes to it. The following assembly fragments *could* be rearranged in - * order to leave the moves to/from the MDR register to the compiler, but the - * gains would be minimal at best. - */ -#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6) -# define CLOBBER_MDR_CC "mdr", "cc" -#else -# define CLOBBER_MDR_CC "cc" -#endif - -/* - * divide n by base, leaving the result in n and returning the remainder - * - we can do this quite efficiently on the MN10300 by cascading the divides - * through the MDR register - */ -#define do_div(n, base) \ -({ \ - unsigned __rem = 0; \ - if (sizeof(n) <= 4) { \ - asm("mov %1,mdr \n" \ - "divu %2,%0 \n" \ - "mov mdr,%1 \n" \ - : "+r"(n), "=d"(__rem) \ - : "r"(base), "1"(__rem) \ - : CLOBBER_MDR_CC \ - ); \ - } else if (sizeof(n) <= 8) { \ - union { \ - unsigned long long l; \ - u32 w[2]; \ - } __quot; \ - __quot.l = n; \ - asm("mov %0,mdr \n" /* MDR = 0 */ \ - "divu %3,%1 \n" \ - /* __quot.MSL = __div.MSL / base, */ \ - /* MDR = MDR:__div.MSL % base */ \ - "divu %3,%2 \n" \ - /* __quot.LSL = MDR:__div.LSL / base, */ \ - /* MDR = MDR:__div.LSL % base */ \ - "mov mdr,%0 \n" \ - : "=d"(__rem), "=r"(__quot.w[1]), "=r"(__quot.w[0]) \ - : "r"(base), "0"(__rem), "1"(__quot.w[1]), \ - "2"(__quot.w[0]) \ - : CLOBBER_MDR_CC \ - ); \ - n = __quot.l; \ - } else { \ - ____unhandled_size_in_do_div___(); \ - } \ - __rem; \ -}) - -/* - * do an unsigned 32-bit multiply and divide with intermediate 64-bit product - * so as not to lose accuracy - * - we use the MDR register to hold the MSW of the product - */ -static inline __attribute__((const)) -unsigned __muldiv64u(unsigned val, unsigned mult, unsigned div) -{ - unsigned result; - - asm("mulu %2,%0 \n" /* MDR:val = val*mult */ - "divu %3,%0 \n" /* val = MDR:val/div; - * MDR = MDR:val%div */ - : "=r"(result) - : "0"(val), "ir"(mult), "r"(div) - : CLOBBER_MDR_CC - ); - - return result; -} - -/* - * do a signed 32-bit multiply and divide with intermediate 64-bit product so - * as not to lose accuracy - * - we use the MDR register to hold the MSW of the product - */ -static inline __attribute__((const)) -signed __muldiv64s(signed val, signed mult, signed div) -{ - signed result; - - asm("mul %2,%0 \n" /* MDR:val = val*mult */ - "div %3,%0 \n" /* val = MDR:val/div; - * MDR = MDR:val%div */ - : "=r"(result) - : "0"(val), "ir"(mult), "r"(div) - : CLOBBER_MDR_CC - ); - - return result; -} - -#endif /* _ASM_DIV64 */ diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h deleted file mode 100644 index 439e474ed6d7..000000000000 --- a/arch/mn10300/include/asm/dma-mapping.h +++ /dev/null @@ -1,21 +0,0 @@ -/* DMA mapping routines for the MN10300 arch - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DMA_MAPPING_H -#define _ASM_DMA_MAPPING_H - -extern const struct dma_map_ops mn10300_dma_ops; - -static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) -{ - return &mn10300_dma_ops; -} - -#endif diff --git a/arch/mn10300/include/asm/dma.h b/arch/mn10300/include/asm/dma.h deleted file mode 100644 index 10b77d4628c2..000000000000 --- a/arch/mn10300/include/asm/dma.h +++ /dev/null @@ -1,117 +0,0 @@ -/* MN10300 ISA DMA handlers and definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DMA_H -#define _ASM_DMA_H - -#include <linux/spinlock.h> -#include <asm/io.h> -#include <linux/delay.h> - -#undef MAX_DMA_CHANNELS /* switch off linux/kernel/dma.c */ -#define MAX_DMA_ADDRESS 0xbfffffff - -extern spinlock_t dma_spin_lock; - -static inline unsigned long claim_dma_lock(void) -{ - unsigned long flags; - spin_lock_irqsave(&dma_spin_lock, flags); - return flags; -} - -static inline void release_dma_lock(unsigned long flags) -{ - spin_unlock_irqrestore(&dma_spin_lock, flags); -} - -/* enable/disable a specific DMA channel */ -static inline void enable_dma(unsigned int dmanr) -{ -} - -static inline void disable_dma(unsigned int dmanr) -{ -} - -/* Clear the 'DMA Pointer Flip Flop'. - * Write 0 for LSB/MSB, 1 for MSB/LSB access. - * Use this once to initialize the FF to a known state. - * After that, keep track of it. :-) - * --- In order to do that, the DMA routines below should --- - * --- only be used while holding the DMA lock ! --- - */ -static inline void clear_dma_ff(unsigned int dmanr) -{ -} - -/* set mode (above) for a specific DMA channel */ -static inline void set_dma_mode(unsigned int dmanr, char mode) -{ -} - -/* Set only the page register bits of the transfer address. - * This is used for successive transfers when we know the contents of - * the lower 16 bits of the DMA current address register, but a 64k boundary - * may have been crossed. - */ -static inline void set_dma_page(unsigned int dmanr, char pagenr) -{ -} - - -/* Set transfer address & page bits for specific DMA channel. - * Assumes dma flipflop is clear. - */ -static inline void set_dma_addr(unsigned int dmanr, unsigned int a) -{ -} - - -/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for - * a specific DMA channel. - * You must ensure the parameters are valid. - * NOTE: from a manual: "the number of transfers is one more - * than the initial word count"! This is taken into account. - * Assumes dma flip-flop is clear. - * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7. - */ -static inline void set_dma_count(unsigned int dmanr, unsigned int count) -{ -} - - -/* Get DMA residue count. After a DMA transfer, this - * should return zero. Reading this while a DMA transfer is - * still in progress will return unpredictable results. - * If called before the channel has been used, it may return 1. - * Otherwise, it returns the number of _bytes_ left to transfer. - * - * Assumes DMA flip-flop is clear. - */ -static inline int get_dma_residue(unsigned int dmanr) -{ - return 0; -} - - -/* These are in kernel/dma.c: */ -extern int request_dma(unsigned int dmanr, const char *device_id); -extern void free_dma(unsigned int dmanr); - -/* From PCI */ - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - -#endif /* _ASM_DMA_H */ diff --git a/arch/mn10300/include/asm/dmactl-regs.h b/arch/mn10300/include/asm/dmactl-regs.h deleted file mode 100644 index 80337b339c90..000000000000 --- a/arch/mn10300/include/asm/dmactl-regs.h +++ /dev/null @@ -1,16 +0,0 @@ -/* MN10300 on-board DMA controller registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_DMACTL_REGS_H -#define _ASM_DMACTL_REGS_H - -#include <proc/dmactl-regs.h> - -#endif /* _ASM_DMACTL_REGS_H */ diff --git a/arch/mn10300/include/asm/elf.h b/arch/mn10300/include/asm/elf.h deleted file mode 100644 index f592d7a9f032..000000000000 --- a/arch/mn10300/include/asm/elf.h +++ /dev/null @@ -1,153 +0,0 @@ -/* MN10300 ELF constant and register definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_ELF_H -#define _ASM_ELF_H - -#include <linux/utsname.h> -#include <asm/ptrace.h> -#include <asm/user.h> - -/* - * AM33 relocations - */ -#define R_MN10300_NONE 0 /* No reloc. */ -#define R_MN10300_32 1 /* Direct 32 bit. */ -#define R_MN10300_16 2 /* Direct 16 bit. */ -#define R_MN10300_8 3 /* Direct 8 bit. */ -#define R_MN10300_PCREL32 4 /* PC-relative 32-bit. */ -#define R_MN10300_PCREL16 5 /* PC-relative 16-bit signed. */ -#define R_MN10300_PCREL8 6 /* PC-relative 8-bit signed. */ -#define R_MN10300_24 9 /* Direct 24 bit. */ -#define R_MN10300_RELATIVE 23 /* Adjust by program base. */ -#define R_MN10300_SYM_DIFF 33 /* Adjustment when relaxing. */ -#define R_MN10300_ALIGN 34 /* Alignment requirement. */ - -/* - * AM33/AM34 HW Capabilities - */ -#define HWCAP_MN10300_ATOMIC_OP_UNIT 1 /* Has AM34 Atomic Operations */ - - -/* - * ELF register definitions.. - */ -typedef unsigned long elf_greg_t; - -#define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 1) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -#define ELF_NFPREG 32 -typedef float elf_fpreg_t; - -typedef struct { - elf_fpreg_t fpregs[ELF_NFPREG]; - u_int32_t fpcr; -} elf_fpregset_t; - -/* - * This is used to ensure we don't load something for the wrong architecture - */ -#define elf_check_arch(x) \ - (((x)->e_machine == EM_CYGNUS_MN10300) || \ - ((x)->e_machine == EM_MN10300)) - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2LSB -#define ELF_ARCH EM_MN10300 - -/* - * ELF process initialiser - */ -#define ELF_PLAT_INIT(_r, load_addr) \ -do { \ - struct pt_regs *_ur = current->thread.uregs; \ - _ur->a3 = 0; _ur->a2 = 0; _ur->d3 = 0; _ur->d2 = 0; \ - _ur->mcvf = 0; _ur->mcrl = 0; _ur->mcrh = 0; _ur->mdrq = 0; \ - _ur->e1 = 0; _ur->e0 = 0; _ur->e7 = 0; _ur->e6 = 0; \ - _ur->e5 = 0; _ur->e4 = 0; _ur->e3 = 0; _ur->e2 = 0; \ - _ur->lar = 0; _ur->lir = 0; _ur->mdr = 0; \ - _ur->a1 = 0; _ur->a0 = 0; _ur->d1 = 0; _ur->d0 = 0; \ -} while (0) - -#define CORE_DUMP_USE_REGSET -#define ELF_EXEC_PAGESIZE 4096 - -/* - * This is the location that an ET_DYN program is loaded if exec'ed. Typical - * use of this is to invoke "./ld.so someprog" to test out a new version of - * the loader. We need to make sure that it is out of the way of the program - * that it will "exec", and that there is sufficient room for the brk. - * - must clear the VMALLOC area - */ -#define ELF_ET_DYN_BASE 0x04000000 - -/* - * regs is struct pt_regs, pr_reg is elf_gregset_t (which is - * now struct user_regs, they are different) - * - ELF_CORE_COPY_REGS has been guessed, and may be wrong - */ -#define ELF_CORE_COPY_REGS(pr_reg, regs) \ -do { \ - pr_reg[0] = regs->a3; \ - pr_reg[1] = regs->a2; \ - pr_reg[2] = regs->d3; \ - pr_reg[3] = regs->d2; \ - pr_reg[4] = regs->mcvf; \ - pr_reg[5] = regs->mcrl; \ - pr_reg[6] = regs->mcrh; \ - pr_reg[7] = regs->mdrq; \ - pr_reg[8] = regs->e1; \ - pr_reg[9] = regs->e0; \ - pr_reg[10] = regs->e7; \ - pr_reg[11] = regs->e6; \ - pr_reg[12] = regs->e5; \ - pr_reg[13] = regs->e4; \ - pr_reg[14] = regs->e3; \ - pr_reg[15] = regs->e2; \ - pr_reg[16] = regs->sp; \ - pr_reg[17] = regs->lar; \ - pr_reg[18] = regs->lir; \ - pr_reg[19] = regs->mdr; \ - pr_reg[20] = regs->a1; \ - pr_reg[21] = regs->a0; \ - pr_reg[22] = regs->d1; \ - pr_reg[23] = regs->d0; \ - pr_reg[24] = regs->orig_d0; \ - pr_reg[25] = regs->epsw; \ - pr_reg[26] = regs->pc; \ -} while (0); - -/* - * This yields a mask that user programs can use to figure out what - * instruction set this CPU supports. This could be done in user space, - * but it's not easy, and we've already done it here. - */ -#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT -#define ELF_HWCAP (HWCAP_MN10300_ATOMIC_OP_UNIT) -#else -#define ELF_HWCAP (0) -#endif - -/* - * This yields a string that ld.so will use to load implementation - * specific libraries for optimization. This is more specific in - * intent than poking at uname or /proc/cpuinfo. - * - * For the moment, we have only optimizations for the Intel generations, - * but that could change... - */ -#define ELF_PLATFORM (NULL) - -#endif /* _ASM_ELF_H */ diff --git a/arch/mn10300/include/asm/emergency-restart.h b/arch/mn10300/include/asm/emergency-restart.h deleted file mode 100644 index 3711bd9d50bd..000000000000 --- a/arch/mn10300/include/asm/emergency-restart.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/emergency-restart.h> diff --git a/arch/mn10300/include/asm/exceptions.h b/arch/mn10300/include/asm/exceptions.h deleted file mode 100644 index 95a4d42c3a06..000000000000 --- a/arch/mn10300/include/asm/exceptions.h +++ /dev/null @@ -1,121 +0,0 @@ -/* MN10300 Microcontroller core exceptions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_EXCEPTIONS_H -#define _ASM_EXCEPTIONS_H - -#include <linux/linkage.h> - -/* - * define the breakpoint instruction opcode to use - * - note that the JTAG unit steals 0xFF, so you can't use JTAG and GDBSTUB at - * the same time. - */ -#define GDBSTUB_BKPT 0xFF - -#ifndef __ASSEMBLY__ - -/* - * enumeration of exception codes (as extracted from TBR MSW) - */ -enum exception_code { - EXCEP_RESET = 0x000000, /* reset */ - - /* MMU exceptions */ - EXCEP_ITLBMISS = 0x000100, /* instruction TLB miss */ - EXCEP_DTLBMISS = 0x000108, /* data TLB miss */ - EXCEP_IAERROR = 0x000110, /* instruction address */ - EXCEP_DAERROR = 0x000118, /* data address */ - - /* system exceptions */ - EXCEP_TRAP = 0x000128, /* program interrupt (PI instruction) */ - EXCEP_ISTEP = 0x000130, /* single step */ - EXCEP_IBREAK = 0x000150, /* instruction breakpoint */ - EXCEP_OBREAK = 0x000158, /* operand breakpoint */ - EXCEP_PRIVINS = 0x000160, /* privileged instruction execution */ - EXCEP_UNIMPINS = 0x000168, /* unimplemented instruction execution */ - EXCEP_UNIMPEXINS = 0x000170, /* unimplemented extended instruction execution */ - EXCEP_MEMERR = 0x000178, /* illegal memory access */ - EXCEP_MISALIGN = 0x000180, /* misalignment */ - EXCEP_BUSERROR = 0x000188, /* bus error */ - EXCEP_ILLINSACC = 0x000190, /* illegal instruction access */ - EXCEP_ILLDATACC = 0x000198, /* illegal data access */ - EXCEP_IOINSACC = 0x0001a0, /* I/O space instruction access */ - EXCEP_PRIVINSACC = 0x0001a8, /* privileged space instruction access */ - EXCEP_PRIVDATACC = 0x0001b0, /* privileged space data access */ - EXCEP_DATINSACC = 0x0001b8, /* data space instruction access */ - EXCEP_DOUBLE_FAULT = 0x000200, /* double fault */ - - /* FPU exceptions */ - EXCEP_FPU_DISABLED = 0x0001c0, /* FPU disabled */ - EXCEP_FPU_UNIMPINS = 0x0001c8, /* FPU unimplemented operation */ - EXCEP_FPU_OPERATION = 0x0001d0, /* FPU operation */ - - /* interrupts */ - EXCEP_WDT = 0x000240, /* watchdog timer overflow */ - EXCEP_NMI = 0x000248, /* non-maskable interrupt */ - EXCEP_IRQ_LEVEL0 = 0x000280, /* level 0 maskable interrupt */ - EXCEP_IRQ_LEVEL1 = 0x000288, /* level 1 maskable interrupt */ - EXCEP_IRQ_LEVEL2 = 0x000290, /* level 2 maskable interrupt */ - EXCEP_IRQ_LEVEL3 = 0x000298, /* level 3 maskable interrupt */ - EXCEP_IRQ_LEVEL4 = 0x0002a0, /* level 4 maskable interrupt */ - EXCEP_IRQ_LEVEL5 = 0x0002a8, /* level 5 maskable interrupt */ - EXCEP_IRQ_LEVEL6 = 0x0002b0, /* level 6 maskable interrupt */ - - /* system calls */ - EXCEP_SYSCALL0 = 0x000300, /* system call 0 */ - EXCEP_SYSCALL1 = 0x000308, /* system call 1 */ - EXCEP_SYSCALL2 = 0x000310, /* system call 2 */ - EXCEP_SYSCALL3 = 0x000318, /* system call 3 */ - EXCEP_SYSCALL4 = 0x000320, /* system call 4 */ - EXCEP_SYSCALL5 = 0x000328, /* system call 5 */ - EXCEP_SYSCALL6 = 0x000330, /* system call 6 */ - EXCEP_SYSCALL7 = 0x000338, /* system call 7 */ - EXCEP_SYSCALL8 = 0x000340, /* system call 8 */ - EXCEP_SYSCALL9 = 0x000348, /* system call 9 */ - EXCEP_SYSCALL10 = 0x000350, /* system call 10 */ - EXCEP_SYSCALL11 = 0x000358, /* system call 11 */ - EXCEP_SYSCALL12 = 0x000360, /* system call 12 */ - EXCEP_SYSCALL13 = 0x000368, /* system call 13 */ - EXCEP_SYSCALL14 = 0x000370, /* system call 14 */ - EXCEP_SYSCALL15 = 0x000378, /* system call 15 */ -}; - -extern void __set_intr_stub(enum exception_code code, void *handler); -extern void set_intr_stub(enum exception_code code, void *handler); - -struct pt_regs; - -extern asmlinkage void __common_exception(void); -extern asmlinkage void itlb_miss(void); -extern asmlinkage void dtlb_miss(void); -extern asmlinkage void itlb_aerror(void); -extern asmlinkage void dtlb_aerror(void); -extern asmlinkage void raw_bus_error(void); -extern asmlinkage void double_fault(void); -extern asmlinkage int system_call(struct pt_regs *); -extern asmlinkage void nmi(struct pt_regs *, enum exception_code); -extern asmlinkage void uninitialised_exception(struct pt_regs *, - enum exception_code); -extern asmlinkage void irq_handler(void); -extern asmlinkage void profile_handler(void); -extern asmlinkage void nmi_handler(void); -extern asmlinkage void misalignment(struct pt_regs *, enum exception_code); - -extern void die(const char *, struct pt_regs *, enum exception_code) - __noreturn; - -extern int die_if_no_fixup(const char *, struct pt_regs *, enum exception_code); - -#define NUM2EXCEP_IRQ_LEVEL(num) (EXCEP_IRQ_LEVEL0 + (num) * 8) - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_EXCEPTIONS_H */ diff --git a/arch/mn10300/include/asm/fpu.h b/arch/mn10300/include/asm/fpu.h deleted file mode 100644 index a47e995d45f3..000000000000 --- a/arch/mn10300/include/asm/fpu.h +++ /dev/null @@ -1,132 +0,0 @@ -/* MN10300 FPU definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * Derived from include/asm-i386/i387.h: Copyright (C) 1994 Linus Torvalds - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_FPU_H -#define _ASM_FPU_H - -#ifndef __ASSEMBLY__ - -#include <linux/sched.h> -#include <asm/exceptions.h> -#include <asm/sigcontext.h> - -#ifdef __KERNEL__ - -extern asmlinkage void fpu_disabled(void); - -#ifdef CONFIG_FPU - -#ifdef CONFIG_LAZY_SAVE_FPU -/* the task that currently owns the FPU state */ -extern struct task_struct *fpu_state_owner; -#endif - -#if (THREAD_USING_FPU & ~0xff) -#error THREAD_USING_FPU must be smaller than 0x100. -#endif - -static inline void set_using_fpu(struct task_struct *tsk) -{ - asm volatile( - "bset %0,(0,%1)" - : - : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags) - : "memory", "cc"); -} - -static inline void clear_using_fpu(struct task_struct *tsk) -{ - asm volatile( - "bclr %0,(0,%1)" - : - : "i"(THREAD_USING_FPU), "a"(&tsk->thread.fpu_flags) - : "memory", "cc"); -} - -#define is_using_fpu(tsk) ((tsk)->thread.fpu_flags & THREAD_USING_FPU) - -extern asmlinkage void fpu_kill_state(struct task_struct *); -extern asmlinkage void fpu_exception(struct pt_regs *, enum exception_code); -extern asmlinkage void fpu_init_state(void); -extern asmlinkage void fpu_save(struct fpu_state_struct *); -extern int fpu_setup_sigcontext(struct fpucontext *buf); -extern int fpu_restore_sigcontext(struct fpucontext *buf); - -static inline void unlazy_fpu(struct task_struct *tsk) -{ - preempt_disable(); -#ifndef CONFIG_LAZY_SAVE_FPU - if (tsk->thread.fpu_flags & THREAD_HAS_FPU) { - fpu_save(&tsk->thread.fpu_state); - tsk->thread.fpu_flags &= ~THREAD_HAS_FPU; - tsk->thread.uregs->epsw &= ~EPSW_FE; - } -#else - if (fpu_state_owner == tsk) - fpu_save(&tsk->thread.fpu_state); -#endif - preempt_enable(); -} - -static inline void exit_fpu(struct task_struct *tsk) -{ -#ifdef CONFIG_LAZY_SAVE_FPU - preempt_disable(); - if (fpu_state_owner == tsk) - fpu_state_owner = NULL; - preempt_enable(); -#endif -} - -static inline void flush_fpu(void) -{ - struct task_struct *tsk = current; - - preempt_disable(); -#ifndef CONFIG_LAZY_SAVE_FPU - if (tsk->thread.fpu_flags & THREAD_HAS_FPU) { - tsk->thread.fpu_flags &= ~THREAD_HAS_FPU; - tsk->thread.uregs->epsw &= ~EPSW_FE; - } -#else - if (fpu_state_owner == tsk) { - fpu_state_owner = NULL; - tsk->thread.uregs->epsw &= ~EPSW_FE; - } -#endif - preempt_enable(); - clear_using_fpu(tsk); -} - -#else /* CONFIG_FPU */ - -extern asmlinkage -void unexpected_fpu_exception(struct pt_regs *, enum exception_code); -#define fpu_exception unexpected_fpu_exception - -struct task_struct; -struct fpu_state_struct; -static inline bool is_using_fpu(struct task_struct *tsk) { return false; } -static inline void set_using_fpu(struct task_struct *tsk) {} -static inline void clear_using_fpu(struct task_struct *tsk) {} -static inline void fpu_init_state(void) {} -static inline void fpu_save(struct fpu_state_struct *s) {} -static inline void fpu_kill_state(struct task_struct *tsk) {} -static inline void unlazy_fpu(struct task_struct *tsk) {} -static inline void exit_fpu(struct task_struct *tsk) {} -static inline void flush_fpu(void) {} -static inline int fpu_setup_sigcontext(struct fpucontext *buf) { return 0; } -static inline int fpu_restore_sigcontext(struct fpucontext *buf) { return 0; } -#endif /* CONFIG_FPU */ - -#endif /* __KERNEL__ */ -#endif /* !__ASSEMBLY__ */ -#endif /* _ASM_FPU_H */ diff --git a/arch/mn10300/include/asm/frame.inc b/arch/mn10300/include/asm/frame.inc deleted file mode 100644 index 1c3eb4fda958..000000000000 --- a/arch/mn10300/include/asm/frame.inc +++ /dev/null @@ -1,97 +0,0 @@ -/* MN10300 Microcontroller core system register definitions -*- asm -*- - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_FRAME_INC -#define _ASM_FRAME_INC - -#ifndef __ASSEMBLY__ -#error not for use in C files -#endif - -#ifndef __ASM_OFFSETS_H__ -#include <asm/asm-offsets.h> -#endif -#include <asm/thread_info.h> - -#define pi break - -#define fp a3 - -############################################################################### -# -# build a stack frame from the registers -# - the caller has subtracted 4 from SP before coming here -# -############################################################################### -.macro SAVE_ALL - add -4,sp # next exception frame ptr save area - movm [other],(sp) - mov usp,a1 - mov a1,(sp) # USP in MOVM[other] dummy slot - movm [d2,d3,a2,a3,exreg0,exreg1,exother],(sp) - mov sp,fp # FRAME pointer in A3 - add -12,sp # allow for calls to be made - - # push the exception frame onto the front of the list - GET_THREAD_INFO a1 - mov (TI_frame,a1),a0 - mov a0,(REG_NEXT,fp) - mov fp,(TI_frame,a1) - - # disable the FPU inside the kernel - and ~EPSW_FE,epsw - - # we may be holding current in E2 -#ifdef CONFIG_MN10300_CURRENT_IN_E2 - mov (__current),e2 -#endif -.endm - -############################################################################### -# -# restore the registers from a stack frame -# -############################################################################### -.macro RESTORE_ALL - # peel back the stack to the calling frame - # - we need that when returning from interrupts to kernel mode - GET_THREAD_INFO a0 - mov (TI_frame,a0),fp - mov fp,sp - mov (REG_NEXT,fp),d0 - mov d0,(TI_frame,a0) # userspace has regs->next == 0 - -#ifndef CONFIG_MN10300_USING_JTAG - mov (REG_EPSW,fp),d0 - btst EPSW_T,d0 - beq 99f - - or EPSW_NMID,epsw - movhu (DCR),d1 - or 0x0001, d1 - movhu d1,(DCR) - -99: -#endif - movm (sp),[d2,d3,a2,a3,exreg0,exreg1,exother] - - # must restore usp even if returning to kernel space, - # when CONFIG_PREEMPT is enabled. - mov (sp),a1 # USP in MOVM[other] dummy slot - mov a1,usp - - movm (sp),[other] - add 8,sp - rti - -.endm - - -#endif /* _ASM_FRAME_INC */ diff --git a/arch/mn10300/include/asm/ftrace.h b/arch/mn10300/include/asm/ftrace.h deleted file mode 100644 index 40a8c178f10d..000000000000 --- a/arch/mn10300/include/asm/ftrace.h +++ /dev/null @@ -1 +0,0 @@ -/* empty */ diff --git a/arch/mn10300/include/asm/futex.h b/arch/mn10300/include/asm/futex.h deleted file mode 100644 index 0b745828f42b..000000000000 --- a/arch/mn10300/include/asm/futex.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/futex.h> diff --git a/arch/mn10300/include/asm/gdb-stub.h b/arch/mn10300/include/asm/gdb-stub.h deleted file mode 100644 index f5495ad82b77..000000000000 --- a/arch/mn10300/include/asm/gdb-stub.h +++ /dev/null @@ -1,182 +0,0 @@ -/* MN10300 Kernel GDB stub definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from asm-mips/gdb-stub.h (c) 1995 Andreas Busse - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_GDB_STUB_H -#define _ASM_GDB_STUB_H - -#include <asm/exceptions.h> - -/* - * register ID numbers in GDB remote protocol - */ - -#define GDB_REGID_PC 9 -#define GDB_REGID_FP 7 -#define GDB_REGID_SP 8 - -/* - * virtual stack layout for the GDB exception handler - */ -#define NUMREGS 64 - -#define GDB_FR_D0 (0 * 4) -#define GDB_FR_D1 (1 * 4) -#define GDB_FR_D2 (2 * 4) -#define GDB_FR_D3 (3 * 4) -#define GDB_FR_A0 (4 * 4) -#define GDB_FR_A1 (5 * 4) -#define GDB_FR_A2 (6 * 4) -#define GDB_FR_A3 (7 * 4) - -#define GDB_FR_SP (8 * 4) -#define GDB_FR_PC (9 * 4) -#define GDB_FR_MDR (10 * 4) -#define GDB_FR_EPSW (11 * 4) -#define GDB_FR_LIR (12 * 4) -#define GDB_FR_LAR (13 * 4) -#define GDB_FR_MDRQ (14 * 4) - -#define GDB_FR_E0 (15 * 4) -#define GDB_FR_E1 (16 * 4) -#define GDB_FR_E2 (17 * 4) -#define GDB_FR_E3 (18 * 4) -#define GDB_FR_E4 (19 * 4) -#define GDB_FR_E5 (20 * 4) -#define GDB_FR_E6 (21 * 4) -#define GDB_FR_E7 (22 * 4) - -#define GDB_FR_SSP (23 * 4) -#define GDB_FR_MSP (24 * 4) -#define GDB_FR_USP (25 * 4) -#define GDB_FR_MCRH (26 * 4) -#define GDB_FR_MCRL (27 * 4) -#define GDB_FR_MCVF (28 * 4) - -#define GDB_FR_FPCR (29 * 4) -#define GDB_FR_DUMMY0 (30 * 4) -#define GDB_FR_DUMMY1 (31 * 4) - -#define GDB_FR_FS0 (32 * 4) - -#define GDB_FR_SIZE (NUMREGS * 4) - -#ifndef __ASSEMBLY__ - -/* - * This is the same as above, but for the high-level - * part of the GDB stub. - */ - -struct gdb_regs { - /* saved main processor registers */ - u32 d0, d1, d2, d3, a0, a1, a2, a3; - u32 sp, pc, mdr, epsw, lir, lar, mdrq; - u32 e0, e1, e2, e3, e4, e5, e6, e7; - u32 ssp, msp, usp, mcrh, mcrl, mcvf; - - /* saved floating point registers */ - u32 fpcr, _dummy0, _dummy1; - u32 fs0, fs1, fs2, fs3, fs4, fs5, fs6, fs7; - u32 fs8, fs9, fs10, fs11, fs12, fs13, fs14, fs15; - u32 fs16, fs17, fs18, fs19, fs20, fs21, fs22, fs23; - u32 fs24, fs25, fs26, fs27, fs28, fs29, fs30, fs31; -}; - -/* - * Prototypes - */ -extern void show_registers_only(struct pt_regs *regs); - -extern asmlinkage void gdbstub_init(void); -extern asmlinkage void gdbstub_exit(int status); -extern asmlinkage void gdbstub_io_init(void); -extern asmlinkage void gdbstub_io_set_baud(unsigned baud); -extern asmlinkage int gdbstub_io_rx_char(unsigned char *_ch, int nonblock); -extern asmlinkage void gdbstub_io_tx_char(unsigned char ch); -extern asmlinkage void gdbstub_io_tx_flush(void); - -extern asmlinkage void gdbstub_io_rx_handler(void); -extern asmlinkage void gdbstub_rx_irq(struct pt_regs *, enum exception_code); -extern asmlinkage int gdbstub_intercept(struct pt_regs *, enum exception_code); -extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code); -extern asmlinkage void __gdbstub_bug_trap(void); -extern asmlinkage void __gdbstub_pause(void); - -#ifdef CONFIG_MN10300_CACHE_ENABLED -extern asmlinkage void gdbstub_purge_cache(void); -#else -#define gdbstub_purge_cache() do {} while (0) -#endif - -/* Used to prevent crashes in memory access */ -extern asmlinkage int gdbstub_read_byte(const u8 *, u8 *); -extern asmlinkage int gdbstub_read_word(const u8 *, u8 *); -extern asmlinkage int gdbstub_read_dword(const u8 *, u8 *); -extern asmlinkage int gdbstub_write_byte(u32, u8 *); -extern asmlinkage int gdbstub_write_word(u32, u8 *); -extern asmlinkage int gdbstub_write_dword(u32, u8 *); - -extern asmlinkage void gdbstub_read_byte_guard(void); -extern asmlinkage void gdbstub_read_byte_cont(void); -extern asmlinkage void gdbstub_read_word_guard(void); -extern asmlinkage void gdbstub_read_word_cont(void); -extern asmlinkage void gdbstub_read_dword_guard(void); -extern asmlinkage void gdbstub_read_dword_cont(void); -extern asmlinkage void gdbstub_write_byte_guard(void); -extern asmlinkage void gdbstub_write_byte_cont(void); -extern asmlinkage void gdbstub_write_word_guard(void); -extern asmlinkage void gdbstub_write_word_cont(void); -extern asmlinkage void gdbstub_write_dword_guard(void); -extern asmlinkage void gdbstub_write_dword_cont(void); - -extern u8 gdbstub_rx_buffer[PAGE_SIZE]; -extern u32 gdbstub_rx_inp; -extern u32 gdbstub_rx_outp; -extern u8 gdbstub_rx_overflow; -extern u8 gdbstub_busy; -extern u8 gdbstub_rx_unget; - -#ifdef CONFIG_GDBSTUB_DEBUGGING -extern void gdbstub_printk(const char *fmt, ...) - __attribute__((format(printf, 1, 2))); -#else -static inline __attribute__((format(printf, 1, 2))) -void gdbstub_printk(const char *fmt, ...) -{ -} -#endif - -#ifdef CONFIG_GDBSTUB_DEBUG_ENTRY -#define gdbstub_entry(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) -#else -#define gdbstub_entry(FMT, ...) no_printk(FMT, ##__VA_ARGS__) -#endif - -#ifdef CONFIG_GDBSTUB_DEBUG_PROTOCOL -#define gdbstub_proto(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) -#else -#define gdbstub_proto(FMT, ...) no_printk(FMT, ##__VA_ARGS__) -#endif - -#ifdef CONFIG_GDBSTUB_DEBUG_IO -#define gdbstub_io(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) -#else -#define gdbstub_io(FMT, ...) no_printk(FMT, ##__VA_ARGS__) -#endif - -#ifdef CONFIG_GDBSTUB_DEBUG_BREAKPOINT -#define gdbstub_bkpt(FMT, ...) gdbstub_printk(FMT, ##__VA_ARGS__) -#else -#define gdbstub_bkpt(FMT, ...) no_printk(FMT, ##__VA_ARGS__) -#endif - -#endif /* !__ASSEMBLY__ */ -#endif /* _ASM_GDB_STUB_H */ diff --git a/arch/mn10300/include/asm/hardirq.h b/arch/mn10300/include/asm/hardirq.h deleted file mode 100644 index 0000d650b55f..000000000000 --- a/arch/mn10300/include/asm/hardirq.h +++ /dev/null @@ -1,49 +0,0 @@ -/* MN10300 Hardware IRQ statistics and management - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_HARDIRQ_H -#define _ASM_HARDIRQ_H - -#include <linux/threads.h> -#include <linux/irq.h> -#include <asm/exceptions.h> - -/* assembly code in softirq.h is sensitive to the offsets of these fields */ -typedef struct { - unsigned int __softirq_pending; -#ifdef CONFIG_MN10300_WD_TIMER - unsigned int __nmi_count; /* arch dependent */ - unsigned int __irq_count; /* arch dependent */ -#endif -} ____cacheline_aligned irq_cpustat_t; - -#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ - -extern void ack_bad_irq(int irq); - -/* - * manipulate stubs in the MN10300 CPU Trap/Interrupt Vector table - * - these should jump to __common_exception in entry.S unless there's a good - * reason to do otherwise (see trap_preinit() in traps.c) - */ -typedef void (*intr_stub_fnx)(struct pt_regs *regs, - enum exception_code intcode); - -/* - * manipulate pointers in the Exception table (see entry.S) - * - these are indexed by decoding the lower 24 bits of the TBR register - * - note that the MN103E010 doesn't always trap through the correct vector, - * but does always set the TBR correctly - */ -extern asmlinkage void set_excp_vector(enum exception_code code, - intr_stub_fnx handler); - -#endif /* _ASM_HARDIRQ_H */ diff --git a/arch/mn10300/include/asm/highmem.h b/arch/mn10300/include/asm/highmem.h deleted file mode 100644 index 1ddea5afba09..000000000000 --- a/arch/mn10300/include/asm/highmem.h +++ /dev/null @@ -1,131 +0,0 @@ -/* MN10300 Virtual kernel memory mappings for high memory - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from include/asm-i386/highmem.h - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_HIGHMEM_H -#define _ASM_HIGHMEM_H - -#ifdef __KERNEL__ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/highmem.h> -#include <asm/kmap_types.h> -#include <asm/pgtable.h> - -/* undef for production */ -#undef HIGHMEM_DEBUG - -/* declarations for highmem.c */ -extern unsigned long highstart_pfn, highend_pfn; - -extern pte_t *kmap_pte; -extern pgprot_t kmap_prot; -extern pte_t *pkmap_page_table; - -extern void __init kmap_init(void); - -/* - * Right now we initialize only a single pte table. It can be extended - * easily, subsequent pte tables have to be allocated in one physical - * chunk of RAM. - */ -#define PKMAP_BASE 0xfe000000UL -#define LAST_PKMAP 1024 -#define LAST_PKMAP_MASK (LAST_PKMAP - 1) -#define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT) -#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) - -extern unsigned long kmap_high(struct page *page); -extern void kunmap_high(struct page *page); - -static inline unsigned long kmap(struct page *page) -{ - if (in_interrupt()) - BUG(); - if (page < highmem_start_page) - return page_address(page); - return kmap_high(page); -} - -static inline void kunmap(struct page *page) -{ - if (in_interrupt()) - BUG(); - if (page < highmem_start_page) - return; - kunmap_high(page); -} - -/* - * The use of kmap_atomic/kunmap_atomic is discouraged - kmap/kunmap - * gives a more generic (and caching) interface. But kmap_atomic can - * be used in IRQ contexts, so in some (very limited) cases we need - * it. - */ -static inline void *kmap_atomic(struct page *page) -{ - unsigned long vaddr; - int idx, type; - - preempt_disable(); - pagefault_disable(); - if (page < highmem_start_page) - return page_address(page); - - type = kmap_atomic_idx_push(); - idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -#if HIGHMEM_DEBUG - if (!pte_none(*(kmap_pte - idx))) - BUG(); -#endif - set_pte(kmap_pte - idx, mk_pte(page, kmap_prot)); - local_flush_tlb_one(vaddr); - - return (void *)vaddr; -} - -static inline void __kunmap_atomic(unsigned long vaddr) -{ - int type; - - if (vaddr < FIXADDR_START) { /* FIXME */ - pagefault_enable(); - preempt_enable(); - return; - } - - type = kmap_atomic_idx(); - -#if HIGHMEM_DEBUG - { - unsigned int idx; - idx = type + KM_TYPE_NR * smp_processor_id(); - - if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx)) - BUG(); - - /* - * force other mappings to Oops if they'll try to access - * this pte without first remap it - */ - pte_clear(kmap_pte - idx); - local_flush_tlb_one(vaddr); - } -#endif - - kmap_atomic_idx_pop(); - pagefault_enable(); - preempt_enable(); -} -#endif /* __KERNEL__ */ - -#endif /* _ASM_HIGHMEM_H */ diff --git a/arch/mn10300/include/asm/hw_irq.h b/arch/mn10300/include/asm/hw_irq.h deleted file mode 100644 index 70619901098e..000000000000 --- a/arch/mn10300/include/asm/hw_irq.h +++ /dev/null @@ -1,14 +0,0 @@ -/* MN10300 Hardware interrupt definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_HW_IRQ_H -#define _ASM_HW_IRQ_H - -#endif /* _ASM_HW_IRQ_H */ diff --git a/arch/mn10300/include/asm/intctl-regs.h b/arch/mn10300/include/asm/intctl-regs.h deleted file mode 100644 index d65bbeebe50a..000000000000 --- a/arch/mn10300/include/asm/intctl-regs.h +++ /dev/null @@ -1,71 +0,0 @@ -/* MN10300 On-board interrupt controller registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_INTCTL_REGS_H -#define _ASM_INTCTL_REGS_H - -#include <asm/cpu-regs.h> - -#ifdef __KERNEL__ - -/* - * Interrupt controller registers - * - Registers 64-191 are at addresses offset from the main array - */ -#define GxICR(X) \ - __SYSREG(0xd4000000 + (X) * 4 + \ - (((X) >= 64) && ((X) < 192)) * 0xf00, u16) - -#define GxICR_u8(X) \ - __SYSREG(0xd4000000 + (X) * 4 + \ - (((X) >= 64) && ((X) < 192)) * 0xf00, u8) - -#include <proc/intctl-regs.h> - -#define XIRQ_TRIGGER_LOWLEVEL 0 -#define XIRQ_TRIGGER_HILEVEL 1 -#define XIRQ_TRIGGER_NEGEDGE 2 -#define XIRQ_TRIGGER_POSEDGE 3 - -/* non-maskable interrupt control */ -#define NMIIRQ 0 -#define NMICR GxICR(NMIIRQ) /* NMI control register */ -#define NMICR_NMIF 0x0001 /* NMI pin interrupt flag */ -#define NMICR_WDIF 0x0002 /* watchdog timer overflow flag */ -#define NMICR_ABUSERR 0x0008 /* async bus error flag */ - -/* maskable interrupt control */ -#define GxICR_DETECT 0x0001 /* interrupt detect flag */ -#define GxICR_REQUEST 0x0010 /* interrupt request flag */ -#define GxICR_ENABLE 0x0100 /* interrupt enable flag */ -#define GxICR_LEVEL 0x7000 /* interrupt priority level */ -#define GxICR_LEVEL_0 0x0000 /* - level 0 */ -#define GxICR_LEVEL_1 0x1000 /* - level 1 */ -#define GxICR_LEVEL_2 0x2000 /* - level 2 */ -#define GxICR_LEVEL_3 0x3000 /* - level 3 */ -#define GxICR_LEVEL_4 0x4000 /* - level 4 */ -#define GxICR_LEVEL_5 0x5000 /* - level 5 */ -#define GxICR_LEVEL_6 0x6000 /* - level 6 */ -#define GxICR_LEVEL_SHIFT 12 -#define GxICR_NMI 0x8000 /* nmi request flag */ - -#define NUM2GxICR_LEVEL(num) ((num) << GxICR_LEVEL_SHIFT) - -#ifndef __ASSEMBLY__ -extern void set_intr_level(int irq, u16 level); -extern void mn10300_set_lateack_irq_type(int irq); -#endif - -/* external interrupts */ -#define XIRQxICR(X) GxICR((X)) /* external interrupt control regs */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_INTCTL_REGS_H */ diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h deleted file mode 100644 index 62189353d2f6..000000000000 --- a/arch/mn10300/include/asm/io.h +++ /dev/null @@ -1,325 +0,0 @@ -/* MN10300 I/O port emulation and memory-mapped I/O - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_IO_H -#define _ASM_IO_H - -#include <asm/page.h> /* I/O is all done through memory accesses */ -#include <asm/cpu-regs.h> -#include <asm/cacheflush.h> -#include <asm-generic/pci_iomap.h> - -#define mmiowb() do {} while (0) - -/*****************************************************************************/ -/* - * readX/writeX() are used to access memory mapped devices. On some - * architectures the memory mapped IO stuff needs to be accessed - * differently. On the x86 architecture, we just read/write the - * memory location directly. - */ -static inline u8 readb(const volatile void __iomem *addr) -{ - return *(const volatile u8 *) addr; -} - -static inline u16 readw(const volatile void __iomem *addr) -{ - return *(const volatile u16 *) addr; -} - -static inline u32 readl(const volatile void __iomem *addr) -{ - return *(const volatile u32 *) addr; -} - -#define __raw_readb readb -#define __raw_readw readw -#define __raw_readl readl - -#define readb_relaxed readb -#define readw_relaxed readw -#define readl_relaxed readl - -static inline void writeb(u8 b, volatile void __iomem *addr) -{ - *(volatile u8 *) addr = b; -} - -static inline void writew(u16 b, volatile void __iomem *addr) -{ - *(volatile u16 *) addr = b; -} - -static inline void writel(u32 b, volatile void __iomem *addr) -{ - *(volatile u32 *) addr = b; -} - -#define __raw_writeb writeb -#define __raw_writew writew -#define __raw_writel writel - -#define writeb_relaxed writeb -#define writew_relaxed writew -#define writel_relaxed writel - -/*****************************************************************************/ -/* - * traditional input/output functions - */ -static inline u8 inb_local(unsigned long addr) -{ - return readb((volatile void __iomem *) addr); -} - -static inline void outb_local(u8 b, unsigned long addr) -{ - return writeb(b, (volatile void __iomem *) addr); -} - -static inline u8 inb(unsigned long addr) -{ - return readb((volatile void __iomem *) addr); -} - -static inline u16 inw(unsigned long addr) -{ - return readw((volatile void __iomem *) addr); -} - -static inline u32 inl(unsigned long addr) -{ - return readl((volatile void __iomem *) addr); -} - -static inline void outb(u8 b, unsigned long addr) -{ - return writeb(b, (volatile void __iomem *) addr); -} - -static inline void outw(u16 b, unsigned long addr) -{ - return writew(b, (volatile void __iomem *) addr); -} - -static inline void outl(u32 b, unsigned long addr) -{ - return writel(b, (volatile void __iomem *) addr); -} - -#define inb_p(addr) inb(addr) -#define inw_p(addr) inw(addr) -#define inl_p(addr) inl(addr) -#define outb_p(x, addr) outb((x), (addr)) -#define outw_p(x, addr) outw((x), (addr)) -#define outl_p(x, addr) outl((x), (addr)) - -static inline void insb(unsigned long addr, void *buffer, int count) -{ - if (count) { - u8 *buf = buffer; - do { - u8 x = inb(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void insw(unsigned long addr, void *buffer, int count) -{ - if (count) { - u16 *buf = buffer; - do { - u16 x = inw(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void insl(unsigned long addr, void *buffer, int count) -{ - if (count) { - u32 *buf = buffer; - do { - u32 x = inl(addr); - *buf++ = x; - } while (--count); - } -} - -static inline void outsb(unsigned long addr, const void *buffer, int count) -{ - if (count) { - const u8 *buf = buffer; - do { - outb(*buf++, addr); - } while (--count); - } -} - -static inline void outsw(unsigned long addr, const void *buffer, int count) -{ - if (count) { - const u16 *buf = buffer; - do { - outw(*buf++, addr); - } while (--count); - } -} - -extern void __outsl(unsigned long addr, const void *buffer, int count); -static inline void outsl(unsigned long addr, const void *buffer, int count) -{ - if ((unsigned long) buffer & 0x3) - return __outsl(addr, buffer, count); - - if (count) { - const u32 *buf = buffer; - do { - outl(*buf++, addr); - } while (--count); - } -} - -#define ioread8(addr) readb(addr) -#define ioread16(addr) readw(addr) -#define ioread32(addr) readl(addr) - -#define iowrite8(v, addr) writeb((v), (addr)) -#define iowrite16(v, addr) writew((v), (addr)) -#define iowrite32(v, addr) writel((v), (addr)) - -#define ioread16be(addr) be16_to_cpu(readw(addr)) -#define ioread32be(addr) be32_to_cpu(readl(addr)) -#define iowrite16be(v, addr) writew(cpu_to_be16(v), (addr)) -#define iowrite32be(v, addr) writel(cpu_to_be32(v), (addr)) - -#define ioread8_rep(p, dst, count) \ - insb((unsigned long) (p), (dst), (count)) -#define ioread16_rep(p, dst, count) \ - insw((unsigned long) (p), (dst), (count)) -#define ioread32_rep(p, dst, count) \ - insl((unsigned long) (p), (dst), (count)) - -#define iowrite8_rep(p, src, count) \ - outsb((unsigned long) (p), (src), (count)) -#define iowrite16_rep(p, src, count) \ - outsw((unsigned long) (p), (src), (count)) -#define iowrite32_rep(p, src, count) \ - outsl((unsigned long) (p), (src), (count)) - -#define readsb(p, dst, count) \ - insb((unsigned long) (p), (dst), (count)) -#define readsw(p, dst, count) \ - insw((unsigned long) (p), (dst), (count)) -#define readsl(p, dst, count) \ - insl((unsigned long) (p), (dst), (count)) - -#define writesb(p, src, count) \ - outsb((unsigned long) (p), (src), (count)) -#define writesw(p, src, count) \ - outsw((unsigned long) (p), (src), (count)) -#define writesl(p, src, count) \ - outsl((unsigned long) (p), (src), (count)) - -#define IO_SPACE_LIMIT 0xffffffff - -#ifdef __KERNEL__ - -#include <linux/vmalloc.h> -#define __io_virt(x) ((void *) (x)) - -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) -{ -} - -/* - * Change virtual addresses to physical addresses and vv. - * These are pretty trivial - */ -static inline unsigned long virt_to_phys(volatile void *address) -{ - return __pa(address); -} - -static inline void *phys_to_virt(unsigned long address) -{ - return __va(address); -} - -/* - * Change "struct page" to physical address. - */ -static inline void __iomem *__ioremap(unsigned long offset, unsigned long size, - unsigned long flags) -{ - return (void __iomem *) offset; -} - -static inline void __iomem *ioremap(unsigned long offset, unsigned long size) -{ - return (void __iomem *)(offset & ~0x20000000); -} - -/* - * This one maps high address device memory and turns off caching for that - * area. it's useful if some control registers are in such an area and write - * combining or read caching is not desirable: - */ -static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size) -{ - return (void __iomem *) (offset | 0x20000000); -} - -#define ioremap_wc ioremap_nocache -#define ioremap_wt ioremap_nocache -#define ioremap_uc ioremap_nocache - -static inline void iounmap(void __iomem *addr) -{ -} - -static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) -{ - return (void __iomem *) port; -} - -static inline void ioport_unmap(void __iomem *p) -{ -} - -#define xlate_dev_kmem_ptr(p) ((void *) (p)) -#define xlate_dev_mem_ptr(p) ((void *) (p)) - -/* - * PCI bus iomem addresses must be in the region 0x80000000-0x9fffffff - */ -static inline unsigned long virt_to_bus(volatile void *address) -{ - return ((unsigned long) address) & ~0x20000000; -} - -static inline void *bus_to_virt(unsigned long address) -{ - return (void *) address; -} - -#define page_to_bus page_to_phys - -#define memset_io(a, b, c) memset(__io_virt(a), (b), (c)) -#define memcpy_fromio(a, b, c) memcpy((a), __io_virt(b), (c)) -#define memcpy_toio(a, b, c) memcpy(__io_virt(a), (b), (c)) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_IO_H */ diff --git a/arch/mn10300/include/asm/irq.h b/arch/mn10300/include/asm/irq.h deleted file mode 100644 index 1a73fb3f60c6..000000000000 --- a/arch/mn10300/include/asm/irq.h +++ /dev/null @@ -1,40 +0,0 @@ -/* MN10300 Hardware interrupt definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - Derived from include/asm-i386/irq.h: - * - (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_IRQ_H -#define _ASM_IRQ_H - -#include <asm/intctl-regs.h> -#include <asm/reset-regs.h> -#include <proc/irq.h> - -/* this number is used when no interrupt has been assigned */ -#define NO_IRQ INT_MAX - -/* - * hardware irq numbers - * - the ASB2364 has an FPGA with an IRQ multiplexer on it - */ -#ifdef CONFIG_MN10300_UNIT_ASB2364 -#include <unit/irq.h> -#else -#define NR_CPU_IRQS GxICR_NUM_IRQS -#define NR_IRQS NR_CPU_IRQS -#endif - -/* external hardware irq numbers */ -#define NR_XIRQS GxICR_NUM_XIRQS - -#define irq_canonicalize(IRQ) (IRQ) - -#endif /* _ASM_IRQ_H */ diff --git a/arch/mn10300/include/asm/irq_regs.h b/arch/mn10300/include/asm/irq_regs.h deleted file mode 100644 index 97d0cb5af807..000000000000 --- a/arch/mn10300/include/asm/irq_regs.h +++ /dev/null @@ -1,28 +0,0 @@ -/* MN10300 IRQ registers pointer definition - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_IRQ_REGS_H -#define _ASM_IRQ_REGS_H - -/* - * Per-cpu current frame pointer - the location of the last exception frame on - * the stack - */ -#define ARCH_HAS_OWN_IRQ_REGS - -#ifndef __ASSEMBLY__ -static inline __attribute__((const)) -struct pt_regs *get_irq_regs(void) -{ - return current_frame(); -} -#endif - -#endif /* _ASM_IRQ_REGS_H */ diff --git a/arch/mn10300/include/asm/irqflags.h b/arch/mn10300/include/asm/irqflags.h deleted file mode 100644 index 8730c0a3c37d..000000000000 --- a/arch/mn10300/include/asm/irqflags.h +++ /dev/null @@ -1,215 +0,0 @@ -/* MN10300 IRQ flag handling - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_IRQFLAGS_H -#define _ASM_IRQFLAGS_H - -#include <asm/cpu-regs.h> -/* linux/smp.h <- linux/irqflags.h needs asm/smp.h first */ -#include <asm/smp.h> - -/* - * interrupt control - * - "disabled": run in IM1/2 - * - level 0 - kernel debugger - * - level 1 - virtual serial DMA (if present) - * - level 5 - normal interrupt priority - * - level 6 - timer interrupt - * - "enabled": run in IM7 - */ -#define MN10300_CLI_LEVEL (CONFIG_LINUX_CLI_LEVEL << EPSW_IM_SHIFT) - -#ifndef __ASSEMBLY__ - -static inline unsigned long arch_local_save_flags(void) -{ - unsigned long flags; - - asm volatile("mov epsw,%0" : "=d"(flags)); - return flags; -} - -static inline void arch_local_irq_disable(void) -{ - asm volatile( - " and %0,epsw \n" - " or %1,epsw \n" - " nop \n" - " nop \n" - " nop \n" - : - : "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL) - : "memory"); -} - -static inline unsigned long arch_local_irq_save(void) -{ - unsigned long flags; - - flags = arch_local_save_flags(); - arch_local_irq_disable(); - return flags; -} - -/* - * we make sure arch_irq_enable() doesn't cause priority inversion - */ -extern unsigned long __mn10300_irq_enabled_epsw[]; - -static inline void arch_local_irq_enable(void) -{ - unsigned long tmp; - int cpu = raw_smp_processor_id(); - - asm volatile( - " mov epsw,%0 \n" - " and %1,%0 \n" - " or %2,%0 \n" - " mov %0,epsw \n" - : "=&d"(tmp) - : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw[cpu]) - : "memory", "cc"); -} - -static inline void arch_local_irq_restore(unsigned long flags) -{ - asm volatile( - " mov %0,epsw \n" - " nop \n" - " nop \n" - " nop \n" - : - : "d"(flags) - : "memory", "cc"); -} - -static inline bool arch_irqs_disabled_flags(unsigned long flags) -{ - return (flags & (EPSW_IE | EPSW_IM)) != (EPSW_IE | EPSW_IM_7); -} - -static inline bool arch_irqs_disabled(void) -{ - return arch_irqs_disabled_flags(arch_local_save_flags()); -} - -/* - * Hook to save power by halting the CPU - * - called from the idle loop - * - must reenable interrupts (which takes three instruction cycles to complete) - */ -static inline void arch_safe_halt(void) -{ -#ifdef CONFIG_SMP - arch_local_irq_enable(); -#else - asm volatile( - " or %0,epsw \n" - " nop \n" - " nop \n" - " bset %2,(%1) \n" - : - : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP) - : "cc"); -#endif -} - -#define __sleep_cpu() \ -do { \ - asm volatile( \ - " bset %1,(%0)\n" \ - "1: btst %1,(%0)\n" \ - " bne 1b\n" \ - : \ - : "i"(&CPUM), "i"(CPUM_SLEEP) \ - : "cc" \ - ); \ -} while (0) - -static inline void arch_local_cli(void) -{ - asm volatile( - " and %0,epsw \n" - " nop \n" - " nop \n" - " nop \n" - : - : "i"(~EPSW_IE) - : "memory" - ); -} - -static inline unsigned long arch_local_cli_save(void) -{ - unsigned long flags = arch_local_save_flags(); - arch_local_cli(); - return flags; -} - -static inline void arch_local_sti(void) -{ - asm volatile( - " or %0,epsw \n" - : - : "i"(EPSW_IE) - : "memory"); -} - -static inline void arch_local_change_intr_mask_level(unsigned long level) -{ - asm volatile( - " and %0,epsw \n" - " or %1,epsw \n" - : - : "i"(~EPSW_IM), "i"(EPSW_IE | level) - : "cc", "memory"); -} - -#else /* !__ASSEMBLY__ */ - -#define LOCAL_SAVE_FLAGS(reg) \ - mov epsw,reg - -#define LOCAL_IRQ_DISABLE \ - and ~EPSW_IM,epsw; \ - or EPSW_IE|MN10300_CLI_LEVEL,epsw; \ - nop; \ - nop; \ - nop - -#define LOCAL_IRQ_ENABLE \ - or EPSW_IE|EPSW_IM_7,epsw - -#define LOCAL_IRQ_RESTORE(reg) \ - mov reg,epsw - -#define LOCAL_CLI_SAVE(reg) \ - mov epsw,reg; \ - and ~EPSW_IE,epsw; \ - nop; \ - nop; \ - nop - -#define LOCAL_CLI \ - and ~EPSW_IE,epsw; \ - nop; \ - nop; \ - nop - -#define LOCAL_STI \ - or EPSW_IE,epsw - -#define LOCAL_CHANGE_INTR_MASK_LEVEL(level) \ - and ~EPSW_IM,epsw; \ - or EPSW_IE|(level),epsw - -#endif /* __ASSEMBLY__ */ -#endif /* _ASM_IRQFLAGS_H */ diff --git a/arch/mn10300/include/asm/kdebug.h b/arch/mn10300/include/asm/kdebug.h deleted file mode 100644 index 0f47e112190c..000000000000 --- a/arch/mn10300/include/asm/kdebug.h +++ /dev/null @@ -1,22 +0,0 @@ -/* MN10300 In-kernel death knells - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_KDEBUG_H -#define _ASM_KDEBUG_H - -/* Grossly misnamed. */ -enum die_val { - DIE_OOPS = 1, - DIE_BREAKPOINT, - DIE_GPF, -}; - -#endif /* _ASM_KDEBUG_H */ diff --git a/arch/mn10300/include/asm/kgdb.h b/arch/mn10300/include/asm/kgdb.h deleted file mode 100644 index eb245f18a708..000000000000 --- a/arch/mn10300/include/asm/kgdb.h +++ /dev/null @@ -1,81 +0,0 @@ -/* Kernel debugger for MN10300 - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_KGDB_H -#define _ASM_KGDB_H - -/* - * BUFMAX defines the maximum number of characters in inbound/outbound - * buffers at least NUMREGBYTES*2 are needed for register packets - * Longer buffer is needed to list all threads - */ -#define BUFMAX 1024 - -/* - * Note that this register image is in a different order than the register - * image that Linux produces at interrupt time. - */ -enum regnames { - GDB_FR_D0 = 0, - GDB_FR_D1 = 1, - GDB_FR_D2 = 2, - GDB_FR_D3 = 3, - GDB_FR_A0 = 4, - GDB_FR_A1 = 5, - GDB_FR_A2 = 6, - GDB_FR_A3 = 7, - - GDB_FR_SP = 8, - GDB_FR_PC = 9, - GDB_FR_MDR = 10, - GDB_FR_EPSW = 11, - GDB_FR_LIR = 12, - GDB_FR_LAR = 13, - GDB_FR_MDRQ = 14, - - GDB_FR_E0 = 15, - GDB_FR_E1 = 16, - GDB_FR_E2 = 17, - GDB_FR_E3 = 18, - GDB_FR_E4 = 19, - GDB_FR_E5 = 20, - GDB_FR_E6 = 21, - GDB_FR_E7 = 22, - - GDB_FR_SSP = 23, - GDB_FR_MSP = 24, - GDB_FR_USP = 25, - GDB_FR_MCRH = 26, - GDB_FR_MCRL = 27, - GDB_FR_MCVF = 28, - - GDB_FR_FPCR = 29, - GDB_FR_DUMMY0 = 30, - GDB_FR_DUMMY1 = 31, - - GDB_FR_FS0 = 32, - - GDB_FR_SIZE = 64, -}; - -#define GDB_ORIG_D0 41 -#define NUMREGBYTES (GDB_FR_SIZE*4) - -static inline void arch_kgdb_breakpoint(void) -{ - asm(".globl __arch_kgdb_breakpoint; __arch_kgdb_breakpoint: break"); -} -extern u8 __arch_kgdb_breakpoint; - -#define BREAK_INSTR_SIZE 1 -#define CACHE_FLUSH_IS_SAFE 1 - -#endif /* _ASM_KGDB_H */ diff --git a/arch/mn10300/include/asm/kmap_types.h b/arch/mn10300/include/asm/kmap_types.h deleted file mode 100644 index f444d7ffa766..000000000000 --- a/arch/mn10300/include/asm/kmap_types.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_KMAP_TYPES_H -#define _ASM_KMAP_TYPES_H - -#include <asm-generic/kmap_types.h> - -#endif /* _ASM_KMAP_TYPES_H */ diff --git a/arch/mn10300/include/asm/kprobes.h b/arch/mn10300/include/asm/kprobes.h deleted file mode 100644 index 7abea0bdb549..000000000000 --- a/arch/mn10300/include/asm/kprobes.h +++ /dev/null @@ -1,55 +0,0 @@ -/* MN10300 Kernel Probes support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public Licence as published by - * the Free Software Foundation; either version 2 of the Licence, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public Licence for more details. - * - * You should have received a copy of the GNU General Public Licence - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - */ -#ifndef _ASM_KPROBES_H -#define _ASM_KPROBES_H - -#include <asm-generic/kprobes.h> - -#define BREAKPOINT_INSTRUCTION 0xff - -#ifdef CONFIG_KPROBES -#include <linux/types.h> -#include <linux/ptrace.h> - -struct kprobe; - -typedef unsigned char kprobe_opcode_t; -#define MAX_INSN_SIZE 8 -#define MAX_STACK_SIZE 128 - -/* Architecture specific copy of original instruction */ -struct arch_specific_insn { - /* copy of original instruction - */ - kprobe_opcode_t insn[MAX_INSN_SIZE]; -}; - -extern const int kretprobe_blacklist_size; - -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); - -#define flush_insn_slot(p) do {} while (0) - -extern void arch_remove_kprobe(struct kprobe *p); - -#endif /* CONFIG_KPROBES */ -#endif /* _ASM_KPROBES_H */ diff --git a/arch/mn10300/include/asm/linkage.h b/arch/mn10300/include/asm/linkage.h deleted file mode 100644 index dda3002a5dfa..000000000000 --- a/arch/mn10300/include/asm/linkage.h +++ /dev/null @@ -1,20 +0,0 @@ -/* MN10300 Linkage and calling-convention overrides - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_LINKAGE_H -#define _ASM_LINKAGE_H - -/* don't override anything */ -#define asmlinkage - -#define __ALIGN .align 4,0xcb -#define __ALIGN_STR ".align 4,0xcb" - -#endif diff --git a/arch/mn10300/include/asm/local.h b/arch/mn10300/include/asm/local.h deleted file mode 100644 index c11c530f74d0..000000000000 --- a/arch/mn10300/include/asm/local.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/local.h> diff --git a/arch/mn10300/include/asm/local64.h b/arch/mn10300/include/asm/local64.h deleted file mode 100644 index 36c93b5cc239..000000000000 --- a/arch/mn10300/include/asm/local64.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/local64.h> diff --git a/arch/mn10300/include/asm/mc146818rtc.h b/arch/mn10300/include/asm/mc146818rtc.h deleted file mode 100644 index df6bc6e0e8c6..000000000000 --- a/arch/mn10300/include/asm/mc146818rtc.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm/rtc-regs.h> diff --git a/arch/mn10300/include/asm/mmu.h b/arch/mn10300/include/asm/mmu.h deleted file mode 100644 index b9d6d41adace..000000000000 --- a/arch/mn10300/include/asm/mmu.h +++ /dev/null @@ -1,20 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* MN10300 Memory management context - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from include/asm-frv/mmu.h - */ - -#ifndef _ASM_MMU_H -#define _ASM_MMU_H - -/* - * MMU context - */ -typedef struct { - unsigned long tlbpid[NR_CPUS]; /* TLB PID for this process on - * each CPU */ -} mm_context_t; - -#endif /* _ASM_MMU_H */ diff --git a/arch/mn10300/include/asm/mmu_context.h b/arch/mn10300/include/asm/mmu_context.h deleted file mode 100644 index d2034f5e6eda..000000000000 --- a/arch/mn10300/include/asm/mmu_context.h +++ /dev/null @@ -1,163 +0,0 @@ -/* MN10300 MMU context management - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - Derived from include/asm-m32r/mmu_context.h - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - * - * - * This implements an algorithm to provide TLB PID mappings to provide - * selective access to the TLB for processes, thus reducing the number of TLB - * flushes required. - * - * Note, however, that the M32R algorithm is technically broken as it does not - * handle version wrap-around, and could, theoretically, have a problem with a - * very long lived program that sleeps long enough for the version number to - * wrap all the way around so that its TLB mappings appear valid once again. - */ -#ifndef _ASM_MMU_CONTEXT_H -#define _ASM_MMU_CONTEXT_H - -#include <linux/atomic.h> -#include <linux/mm_types.h> - -#include <asm/pgalloc.h> -#include <asm/tlbflush.h> -#include <asm-generic/mm_hooks.h> - -#define MMU_CONTEXT_TLBPID_NR 256 -#define MMU_CONTEXT_TLBPID_MASK 0x000000ffUL -#define MMU_CONTEXT_VERSION_MASK 0xffffff00UL -#define MMU_CONTEXT_FIRST_VERSION 0x00000100UL -#define MMU_NO_CONTEXT 0x00000000UL -#define MMU_CONTEXT_TLBPID_LOCK_NR 0 - -#define enter_lazy_tlb(mm, tsk) do {} while (0) - -static inline void cpu_ran_vm(int cpu, struct mm_struct *mm) -{ -#ifdef CONFIG_SMP - cpumask_set_cpu(cpu, mm_cpumask(mm)); -#endif -} - -static inline bool cpu_maybe_ran_vm(int cpu, struct mm_struct *mm) -{ -#ifdef CONFIG_SMP - return cpumask_test_and_set_cpu(cpu, mm_cpumask(mm)); -#else - return true; -#endif -} - -#ifdef CONFIG_MN10300_TLB_USE_PIDR -extern unsigned long mmu_context_cache[NR_CPUS]; -#define mm_context(mm) (mm->context.tlbpid[smp_processor_id()]) - -/** - * allocate_mmu_context - Allocate storage for the arch-specific MMU data - * @mm: The userspace VM context being set up - */ -static inline unsigned long allocate_mmu_context(struct mm_struct *mm) -{ - unsigned long *pmc = &mmu_context_cache[smp_processor_id()]; - unsigned long mc = ++(*pmc); - - if (!(mc & MMU_CONTEXT_TLBPID_MASK)) { - /* we exhausted the TLB PIDs of this version on this CPU, so we - * flush this CPU's TLB in its entirety and start new cycle */ - local_flush_tlb_all(); - - /* fix the TLB version if needed (we avoid version #0 so as to - * distinguish MMU_NO_CONTEXT) */ - if (!mc) - *pmc = mc = MMU_CONTEXT_FIRST_VERSION; - } - mm_context(mm) = mc; - return mc; -} - -/* - * get an MMU context if one is needed - */ -static inline unsigned long get_mmu_context(struct mm_struct *mm) -{ - unsigned long mc = MMU_NO_CONTEXT, cache; - - if (mm) { - cache = mmu_context_cache[smp_processor_id()]; - mc = mm_context(mm); - - /* if we have an old version of the context, replace it */ - if ((mc ^ cache) & MMU_CONTEXT_VERSION_MASK) - mc = allocate_mmu_context(mm); - } - return mc; -} - -/* - * initialise the context related info for a new mm_struct instance - */ -static inline int init_new_context(struct task_struct *tsk, - struct mm_struct *mm) -{ - int num_cpus = NR_CPUS, i; - - for (i = 0; i < num_cpus; i++) - mm->context.tlbpid[i] = MMU_NO_CONTEXT; - return 0; -} - -/* - * after we have set current->mm to a new value, this activates the context for - * the new mm so we see the new mappings. - */ -static inline void activate_context(struct mm_struct *mm) -{ - PIDR = get_mmu_context(mm) & MMU_CONTEXT_TLBPID_MASK; -} -#else /* CONFIG_MN10300_TLB_USE_PIDR */ - -#define init_new_context(tsk, mm) (0) -#define activate_context(mm) local_flush_tlb() - -#endif /* CONFIG_MN10300_TLB_USE_PIDR */ - -/** - * destroy_context - Destroy mm context information - * @mm: The MM being destroyed. - * - * Destroy context related info for an mm_struct that is about to be put to - * rest - */ -#define destroy_context(mm) do {} while (0) - -/** - * switch_mm - Change between userspace virtual memory contexts - * @prev: The outgoing MM context. - * @next: The incoming MM context. - * @tsk: The incoming task. - */ -static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, - struct task_struct *tsk) -{ - int cpu = smp_processor_id(); - - if (prev != next) { -#ifdef CONFIG_SMP - per_cpu(cpu_tlbstate, cpu).active_mm = next; -#endif - cpu_ran_vm(cpu, next); - PTBR = (unsigned long) next->pgd; - activate_context(next); - } -} - -#define deactivate_mm(tsk, mm) do {} while (0) -#define activate_mm(prev, next) switch_mm((prev), (next), NULL) - -#endif /* _ASM_MMU_CONTEXT_H */ diff --git a/arch/mn10300/include/asm/module.h b/arch/mn10300/include/asm/module.h deleted file mode 100644 index 6571103b0518..000000000000 --- a/arch/mn10300/include/asm/module.h +++ /dev/null @@ -1,22 +0,0 @@ -/* MN10300 Arch-specific module definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * Derived from include/asm-i386/module.h - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_MODULE_H -#define _ASM_MODULE_H - -#include <asm-generic/module.h> - -/* - * Include the MN10300 architecture version. - */ -#define MODULE_ARCH_VERMAGIC __stringify(PROCESSOR_MODEL_NAME) " " - -#endif /* _ASM_MODULE_H */ diff --git a/arch/mn10300/include/asm/nmi.h b/arch/mn10300/include/asm/nmi.h deleted file mode 100644 index b05627597b1b..000000000000 --- a/arch/mn10300/include/asm/nmi.h +++ /dev/null @@ -1,16 +0,0 @@ -/* MN10300 NMI handling - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_NMI_H -#define _ASM_NMI_H - -extern void arch_touch_nmi_watchdog(void); - -#endif /* _ASM_NMI_H */ diff --git a/arch/mn10300/include/asm/page.h b/arch/mn10300/include/asm/page.h deleted file mode 100644 index dfe730a5ede0..000000000000 --- a/arch/mn10300/include/asm/page.h +++ /dev/null @@ -1,130 +0,0 @@ -/* MN10300 Page table definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PAGE_H -#define _ASM_PAGE_H - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 - -#ifndef __ASSEMBLY__ -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) -#else -#define PAGE_SIZE +(1 << PAGE_SHIFT) /* unary plus marks an - * immediate val not an addr */ -#define PAGE_MASK +(~(PAGE_SIZE - 1)) -#endif - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -#define copy_page(to, from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) - -#define clear_user_page(addr, vaddr, page) clear_page(addr) -#define copy_user_page(vto, vfrom, vaddr, to) copy_page(vto, vfrom) - -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; -typedef struct page *pgtable_t; - -#define PTE_MASK PAGE_MASK -#define HPAGE_SHIFT 22 - -#ifdef CONFIG_HUGETLB_PAGE -#define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#endif - -#define pte_val(x) ((x).pte) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define __pte(x) ((pte_t) { (x) }) -#define __pgd(x) ((pgd_t) { (x) }) -#define __pgprot(x) ((pgprot_t) { (x) }) - -#define __ARCH_USE_5LEVEL_HACK -#include <asm-generic/pgtable-nopmd.h> - -#endif /* !__ASSEMBLY__ */ - -/* - * This handles the memory map.. We could make this a config - * option, but too many people screw it up, and too few need - * it. - * - * A __PAGE_OFFSET of 0xC0000000 means that the kernel has - * a virtual address space of one gigabyte, which limits the - * amount of physical memory you can use to about 950MB. - */ - -#ifndef __ASSEMBLY__ - -/* Pure 2^n version of get_order */ -static inline int get_order(unsigned long size) __attribute__((const)); -static inline int get_order(unsigned long size) -{ - int order; - - size = (size - 1) >> (PAGE_SHIFT - 1); - order = -1; - do { - size >>= 1; - order++; - } while (size); - return order; -} - -#endif /* __ASSEMBLY__ */ - -#include <asm/page_offset.h> - -#define __PAGE_OFFSET (PAGE_OFFSET_RAW) -#define PAGE_OFFSET ((unsigned long) __PAGE_OFFSET) - -/* - * main RAM and kernel working space are coincident at 0x90000000, but to make - * life more interesting, there's also an uncached virtual shadow at 0xb0000000 - * - these mappings are fixed in the MMU - */ -#define __pfn_disp (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT) - -#define __pa(x) ((unsigned long)(x)) -#define __va(x) ((void *)(unsigned long)(x)) -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) -#define pfn_to_page(pfn) (mem_map + ((pfn) - __pfn_disp)) -#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + __pfn_disp) -#define __pfn_to_phys(pfn) PFN_PHYS(pfn) - -#define pfn_valid(pfn) \ -({ \ - unsigned long __pfn = (pfn) - __pfn_disp; \ - __pfn < max_mapnr; \ -}) - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS \ - (VM_READ | VM_WRITE | \ - ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PAGE_H */ diff --git a/arch/mn10300/include/asm/page_offset.h b/arch/mn10300/include/asm/page_offset.h deleted file mode 100644 index 1e869aa09418..000000000000 --- a/arch/mn10300/include/asm/page_offset.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* MN10300 Kernel base address - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - */ -#ifndef _ASM_PAGE_OFFSET_H -#define _ASM_PAGE_OFFSET_H - -#define PAGE_OFFSET_RAW CONFIG_KERNEL_RAM_BASE_ADDRESS - -#endif diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h deleted file mode 100644 index 5b75a1b2c4f6..000000000000 --- a/arch/mn10300/include/asm/pci.h +++ /dev/null @@ -1,84 +0,0 @@ -/* MN10300 PCI definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PCI_H -#define _ASM_PCI_H - -#ifdef __KERNEL__ -#include <linux/mm.h> /* for struct page */ - -#if 0 -#define __pcbdebug(FMT, ADDR, ...) \ - printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \ - (u32)(ADDR), ##__VA_ARGS__) - -#define __pcidebug(FMT, BUS, DEVFN, WHERE,...) \ -do { \ - printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n", \ - (BUS)->number, \ - PCI_SLOT(DEVFN), \ - PCI_FUNC(DEVFN), \ - (u32)(WHERE), ##__VA_ARGS__); \ -} while (0) - -#else -#define __pcbdebug(FMT, ADDR, ...) do {} while (0) -#define __pcidebug(FMT, BUS, DEVFN, WHERE, ...) do {} while (0) -#endif - -/* Can be used to override the logic in pci_scan_bus for skipping - * already-configured bus numbers - to be used for buggy BIOSes or - * architectures with incomplete PCI setup by the loader */ - -#ifdef CONFIG_PCI -#define pcibios_assign_all_busses() 1 -extern void unit_pci_init(void); -#else -#define pcibios_assign_all_busses() 0 -#endif - -#define PCIBIOS_MIN_IO 0xBE000004 -#define PCIBIOS_MIN_MEM 0xB8000000 - -/* Dynamic DMA mapping stuff. - * i386 has everything mapped statically. - */ - -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/scatterlist.h> -#include <linux/string.h> -#include <asm/io.h> - -/* The PCI address space does equal the physical memory - * address space. The networking and block device layers use - * this boolean for bounce buffer decisions. - */ -#define PCI_DMA_BUS_IS_PHYS (1) - -/* Return the index of the PCI controller for device. */ -static inline int pci_controller_num(struct pci_dev *dev) -{ - return 0; -} - -#define HAVE_PCI_MMAP -#define ARCH_GENERIC_PCI_MMAP_RESOURCE - -#endif /* __KERNEL__ */ - -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return channel ? 15 : 14; -} - -#include <asm-generic/pci_iomap.h> - -#endif /* _ASM_PCI_H */ diff --git a/arch/mn10300/include/asm/percpu.h b/arch/mn10300/include/asm/percpu.h deleted file mode 100644 index 06a959d67234..000000000000 --- a/arch/mn10300/include/asm/percpu.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/percpu.h> diff --git a/arch/mn10300/include/asm/pgalloc.h b/arch/mn10300/include/asm/pgalloc.h deleted file mode 100644 index 0f25d5fa86f3..000000000000 --- a/arch/mn10300/include/asm/pgalloc.h +++ /dev/null @@ -1,56 +0,0 @@ -/* MN10300 Page and page table/directory allocation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PGALLOC_H -#define _ASM_PGALLOC_H - -#include <asm/page.h> -#include <linux/threads.h> -#include <linux/mm.h> /* for struct page */ - -struct mm_struct; -struct page; - -/* attach a page table to a PMD entry */ -#define pmd_populate_kernel(mm, pmd, pte) \ - set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)) - -static inline -void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte) -{ - set_pmd(pmd, __pmd((page_to_pfn(pte) << PAGE_SHIFT) | _PAGE_TABLE)); -} -#define pmd_pgtable(pmd) pmd_page(pmd) - -/* - * Allocate and free page tables. - */ - -extern pgd_t *pgd_alloc(struct mm_struct *); -extern void pgd_free(struct mm_struct *, pgd_t *); - -extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); -extern struct page *pte_alloc_one(struct mm_struct *, unsigned long); - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long) pte); -} - -static inline void pte_free(struct mm_struct *mm, struct page *pte) -{ - pgtable_page_dtor(pte); - __free_page(pte); -} - - -#define __pte_free_tlb(tlb, pte, addr) tlb_remove_page((tlb), (pte)) - -#endif /* _ASM_PGALLOC_H */ diff --git a/arch/mn10300/include/asm/pgtable.h b/arch/mn10300/include/asm/pgtable.h deleted file mode 100644 index 96d3f9deb59c..000000000000 --- a/arch/mn10300/include/asm/pgtable.h +++ /dev/null @@ -1,494 +0,0 @@ -/* MN10300 Page table manipulators and constants - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - * - * - * The Linux memory management assumes a three-level page table setup. On - * the i386, we use that, but "fold" the mid level into the top-level page - * table, so that we physically have the same two-level page table as the - * i386 mmu expects. - * - * This file contains the functions and defines necessary to modify and use - * the i386 page table tree for the purposes of the MN10300 TLB handler - * functions. - */ -#ifndef _ASM_PGTABLE_H -#define _ASM_PGTABLE_H - -#include <asm/cpu-regs.h> - -#ifndef __ASSEMBLY__ -#include <asm/processor.h> -#include <asm/cache.h> -#include <linux/threads.h> - -#include <asm/bitops.h> - -#include <linux/slab.h> -#include <linux/list.h> -#include <linux/spinlock.h> - -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ -#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) -extern unsigned long empty_zero_page[1024]; -extern spinlock_t pgd_lock; -extern struct page *pgd_list; - -extern void pmd_ctor(void *, struct kmem_cache *, unsigned long); -extern void pgtable_cache_init(void); -extern void paging_init(void); - -#endif /* !__ASSEMBLY__ */ - -/* - * The Linux mn10300 paging architecture only implements both the traditional - * 2-level page tables - */ -#define PGDIR_SHIFT 22 -#define PTRS_PER_PGD 1024 -#define PTRS_PER_PUD 1 /* we don't really have any PUD physically */ -#define __PAGETABLE_PUD_FOLDED -#define PTRS_PER_PMD 1 /* we don't really have any PMD physically */ -#define __PAGETABLE_PMD_FOLDED -#define PTRS_PER_PTE 1024 - -#define PGD_SIZE PAGE_SIZE -#define PMD_SIZE (1UL << PMD_SHIFT) -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE - 1)) - -#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) -#define FIRST_USER_ADDRESS 0UL - -#define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT) -#define KERNEL_PGD_PTRS (PTRS_PER_PGD - USER_PGD_PTRS) - -#define TWOLEVEL_PGDIR_SHIFT 22 -#define BOOT_USER_PGD_PTRS (__PAGE_OFFSET >> TWOLEVEL_PGDIR_SHIFT) -#define BOOT_KERNEL_PGD_PTRS (1024 - BOOT_USER_PGD_PTRS) - -#ifndef __ASSEMBLY__ -extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -#endif - -/* - * Unfortunately, due to the way the MMU works on the MN10300, the vmalloc VM - * area has to be in the lower half of the virtual address range (the upper - * half is not translated through the TLB). - * - * So in this case, the vmalloc area goes at the bottom of the address map - * (leaving a hole at the very bottom to catch addressing errors), and - * userspace starts immediately above. - * - * The vmalloc() routines also leaves a hole of 4kB between each vmalloced - * area to catch addressing errors. - */ -#ifndef __ASSEMBLY__ -#define VMALLOC_OFFSET (8UL * 1024 * 1024) -#define VMALLOC_START (0x70000000UL) -#define VMALLOC_END (0x7C000000UL) -#else -#define VMALLOC_OFFSET (8 * 1024 * 1024) -#define VMALLOC_START (0x70000000) -#define VMALLOC_END (0x7C000000) -#endif - -#ifndef __ASSEMBLY__ -extern pte_t kernel_vmalloc_ptes[(VMALLOC_END - VMALLOC_START) / PAGE_SIZE]; -#endif - -/* IPTEL2/DPTEL2 bit assignments */ -#define _PAGE_BIT_VALID xPTEL2_V_BIT -#define _PAGE_BIT_CACHE xPTEL2_C_BIT -#define _PAGE_BIT_PRESENT xPTEL2_PV_BIT -#define _PAGE_BIT_DIRTY xPTEL2_D_BIT -#define _PAGE_BIT_GLOBAL xPTEL2_G_BIT -#define _PAGE_BIT_ACCESSED xPTEL2_UNUSED1_BIT /* mustn't be loaded into IPTEL2/DPTEL2 */ - -#define _PAGE_VALID xPTEL2_V -#define _PAGE_CACHE xPTEL2_C -#define _PAGE_PRESENT xPTEL2_PV -#define _PAGE_DIRTY xPTEL2_D -#define _PAGE_PROT xPTEL2_PR -#define _PAGE_PROT_RKNU xPTEL2_PR_ROK -#define _PAGE_PROT_WKNU xPTEL2_PR_RWK -#define _PAGE_PROT_RKRU xPTEL2_PR_ROK_ROU -#define _PAGE_PROT_WKRU xPTEL2_PR_RWK_ROU -#define _PAGE_PROT_WKWU xPTEL2_PR_RWK_RWU -#define _PAGE_GLOBAL xPTEL2_G -#define _PAGE_PS_MASK xPTEL2_PS -#define _PAGE_PS_4Kb xPTEL2_PS_4Kb -#define _PAGE_PS_128Kb xPTEL2_PS_128Kb -#define _PAGE_PS_1Kb xPTEL2_PS_1Kb -#define _PAGE_PS_4Mb xPTEL2_PS_4Mb -#define _PAGE_PSE xPTEL2_PS_4Mb /* 4MB page */ -#define _PAGE_CACHE_WT xPTEL2_CWT -#define _PAGE_ACCESSED xPTEL2_UNUSED1 -#define _PAGE_NX 0 /* no-execute bit */ - -/* If _PAGE_VALID is clear, we use these: */ -#define _PAGE_PROTNONE 0x000 /* If not present */ - -#define __PAGE_PROT_UWAUX 0x010 -#define __PAGE_PROT_USER 0x020 -#define __PAGE_PROT_WRITE 0x040 - -#define _PAGE_PRESENTV (_PAGE_PRESENT|_PAGE_VALID) - -#ifndef __ASSEMBLY__ - -#define VMALLOC_VMADDR(x) ((unsigned long)(x)) - -#define _PAGE_TABLE (_PAGE_PRESENTV | _PAGE_PROT_WKNU | _PAGE_ACCESSED | _PAGE_DIRTY) -#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) - -#define __PAGE_NONE (_PAGE_PRESENTV | _PAGE_PROT_RKNU | _PAGE_ACCESSED | _PAGE_CACHE) -#define __PAGE_SHARED (_PAGE_PRESENTV | _PAGE_PROT_WKWU | _PAGE_ACCESSED | _PAGE_CACHE) -#define __PAGE_COPY (_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE) -#define __PAGE_READONLY (_PAGE_PRESENTV | _PAGE_PROT_RKRU | _PAGE_ACCESSED | _PAGE_CACHE) - -#define PAGE_NONE __pgprot(__PAGE_NONE | _PAGE_NX) -#define PAGE_SHARED_NOEXEC __pgprot(__PAGE_SHARED | _PAGE_NX) -#define PAGE_COPY_NOEXEC __pgprot(__PAGE_COPY | _PAGE_NX) -#define PAGE_READONLY_NOEXEC __pgprot(__PAGE_READONLY | _PAGE_NX) -#define PAGE_SHARED_EXEC __pgprot(__PAGE_SHARED) -#define PAGE_COPY_EXEC __pgprot(__PAGE_COPY) -#define PAGE_READONLY_EXEC __pgprot(__PAGE_READONLY) -#define PAGE_COPY PAGE_COPY_NOEXEC -#define PAGE_READONLY PAGE_READONLY_NOEXEC -#define PAGE_SHARED PAGE_SHARED_EXEC - -#define __PAGE_KERNEL_BASE (_PAGE_PRESENTV | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) - -#define __PAGE_KERNEL (__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_CACHE | _PAGE_NX) -#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL_BASE | _PAGE_PROT_WKNU | _PAGE_NX) -#define __PAGE_KERNEL_EXEC (__PAGE_KERNEL & ~_PAGE_NX) -#define __PAGE_KERNEL_RO (__PAGE_KERNEL_BASE | _PAGE_PROT_RKNU | _PAGE_CACHE | _PAGE_NX) -#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) -#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) - -#define PAGE_KERNEL __pgprot(__PAGE_KERNEL) -#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO) -#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC) -#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE) -#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE) -#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC) - -#define __PAGE_USERIO (__PAGE_KERNEL_BASE | _PAGE_PROT_WKWU | _PAGE_NX) -#define PAGE_USERIO __pgprot(__PAGE_USERIO) - -/* - * Whilst the MN10300 can do page protection for execute (given separate data - * and insn TLBs), we are not supporting it at the moment. Write permission, - * however, always implies read permission (but not execute permission). - */ -#define __P000 PAGE_NONE -#define __P001 PAGE_READONLY_NOEXEC -#define __P010 PAGE_COPY_NOEXEC -#define __P011 PAGE_COPY_NOEXEC -#define __P100 PAGE_READONLY_EXEC -#define __P101 PAGE_READONLY_EXEC -#define __P110 PAGE_COPY_EXEC -#define __P111 PAGE_COPY_EXEC - -#define __S000 PAGE_NONE -#define __S001 PAGE_READONLY_NOEXEC -#define __S010 PAGE_SHARED_NOEXEC -#define __S011 PAGE_SHARED_NOEXEC -#define __S100 PAGE_READONLY_EXEC -#define __S101 PAGE_READONLY_EXEC -#define __S110 PAGE_SHARED_EXEC -#define __S111 PAGE_SHARED_EXEC - -/* - * Define this to warn about kernel memory accesses that are - * done without a 'verify_area(VERIFY_WRITE,..)' - */ -#undef TEST_VERIFY_AREA - -#define pte_present(x) (pte_val(x) & _PAGE_VALID) -#define pte_clear(mm, addr, xp) \ -do { \ - set_pte_at((mm), (addr), (xp), __pte(0)); \ -} while (0) - -#define pmd_none(x) (!pmd_val(x)) -#define pmd_present(x) (!pmd_none(x)) -#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) -#define pmd_bad(x) 0 - - -#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT)) - -#ifndef __ASSEMBLY__ - -/* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -static inline int pte_user(pte_t pte) { return pte_val(pte) & __PAGE_PROT_USER; } -static inline int pte_read(pte_t pte) { return pte_val(pte) & __PAGE_PROT_USER; } -static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } -static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } -static inline int pte_write(pte_t pte) { return pte_val(pte) & __PAGE_PROT_WRITE; } -static inline int pte_special(pte_t pte){ return 0; } - -static inline pte_t pte_rdprotect(pte_t pte) -{ - pte_val(pte) &= ~(__PAGE_PROT_USER|__PAGE_PROT_UWAUX); return pte; -} -static inline pte_t pte_exprotect(pte_t pte) -{ - pte_val(pte) |= _PAGE_NX; return pte; -} - -static inline pte_t pte_wrprotect(pte_t pte) -{ - pte_val(pte) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX); return pte; -} - -static inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~_PAGE_DIRTY; return pte; } -static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~_PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= _PAGE_DIRTY; return pte; } -static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkexec(pte_t pte) { pte_val(pte) &= ~_PAGE_NX; return pte; } - -static inline pte_t pte_mkread(pte_t pte) -{ - pte_val(pte) |= __PAGE_PROT_USER; - if (pte_write(pte)) - pte_val(pte) |= __PAGE_PROT_UWAUX; - return pte; -} -static inline pte_t pte_mkwrite(pte_t pte) -{ - pte_val(pte) |= __PAGE_PROT_WRITE; - if (pte_val(pte) & __PAGE_PROT_USER) - pte_val(pte) |= __PAGE_PROT_UWAUX; - return pte; -} - -static inline pte_t pte_mkspecial(pte_t pte) { return pte; } - -#define pte_ERROR(e) \ - printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \ - __FILE__, __LINE__, pte_val(e)) -#define pgd_ERROR(e) \ - printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \ - __FILE__, __LINE__, pgd_val(e)) - -/* - * The "pgd_xxx()" functions here are trivial for a folded two-level - * setup: the pgd is never bad, and a pmd always exists (as it's folded - * into the pgd entry) - */ -#define pgd_clear(xp) do { } while (0) - -/* - * Certain architectures need to do special things when PTEs - * within a page table are directly modified. Thus, the following - * hook is made available. - */ -#define set_pte(pteptr, pteval) (*(pteptr) = pteval) -#define set_pte_at(mm, addr, ptep, pteval) set_pte((ptep), (pteval)) -#define set_pte_atomic(pteptr, pteval) set_pte((pteptr), (pteval)) - -/* - * (pmds are folded into pgds so this doesn't get actually called, - * but the define is needed for a generic inline function.) - */ -#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) - -#define ptep_get_and_clear(mm, addr, ptep) \ - __pte(xchg(&(ptep)->pte, 0)) -#define pte_same(a, b) (pte_val(a) == pte_val(b)) -#define pte_page(x) pfn_to_page(pte_pfn(x)) -#define pte_none(x) (!pte_val(x)) -#define pte_pfn(x) ((unsigned long) (pte_val(x) >> PAGE_SHIFT)) -#define __pfn_addr(pfn) ((pfn) << PAGE_SHIFT) -#define pfn_pte(pfn, prot) __pte(__pfn_addr(pfn) | pgprot_val(prot)) -#define pfn_pmd(pfn, prot) __pmd(__pfn_addr(pfn) | pgprot_val(prot)) - -/* - * All present user pages are user-executable: - */ -static inline int pte_exec(pte_t pte) -{ - return pte_user(pte); -} - -/* - * All present pages are kernel-executable: - */ -static inline int pte_exec_kernel(pte_t pte) -{ - return 1; -} - -/* Encode and de-code a swap entry */ -#define __swp_type(x) (((x).val >> 1) & 0x3f) -#define __swp_offset(x) ((x).val >> 7) -#define __swp_entry(type, offset) \ - ((swp_entry_t) { ((type) << 1) | ((offset) << 7) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) __pte((x).val) - -static inline -int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep) -{ - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte); -} - -static inline -int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep) -{ - if (!pte_young(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte); -} - -static inline -void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - pte_val(*ptep) &= ~(__PAGE_PROT_WRITE|__PAGE_PROT_UWAUX); -} - -static inline void ptep_mkdirty(pte_t *ptep) -{ - set_bit(_PAGE_BIT_DIRTY, &ptep->pte); -} - -/* - * Macro to mark a page protection value as "uncacheable". On processors which - * do not support it, this is a no-op. - */ -#define pgprot_noncached(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHE) - -/* - * Macro to mark a page protection value as "Write-Through". - * On processors which do not support it, this is a no-op. - */ -#define pgprot_through(prot) __pgprot(pgprot_val(prot) | _PAGE_CACHE_WT) - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ - -#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) -#define mk_pte_huge(entry) \ - ((entry).pte |= _PAGE_PRESENT | _PAGE_PSE | _PAGE_VALID) - -static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -{ - pte_val(pte) &= _PAGE_CHG_MASK; - pte_val(pte) |= pgprot_val(newprot); - return pte; -} - -#define page_pte(page) page_pte_prot((page), __pgprot(0)) - -#define pmd_page_kernel(pmd) \ - ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) - -#define pmd_page(pmd) pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT) - -#define pmd_large(pmd) \ - ((pmd_val(pmd) & (_PAGE_PSE | _PAGE_PRESENT)) == \ - (_PAGE_PSE | _PAGE_PRESENT)) - -/* - * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] - * - * this macro returns the index of the entry in the pgd page which would - * control the given virtual address - */ -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) - -/* - * pgd_offset() returns a (pgd_t *) - * pgd_index() is used get the offset into the pgd page's array of pgd_t's; - */ -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -/* - * a shortcut which implies the use of the kernel's pgd, instead - * of a process's - */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* - * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD] - * - * this macro returns the index of the entry in the pmd page which would - * control the given virtual address - */ -#define pmd_index(address) \ - (((address) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)) - -/* - * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE] - * - * this macro returns the index of the entry in the pte page which would - * control the given virtual address - */ -#define pte_index(address) \ - (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) - -#define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) - -/* - * Make a given kernel text page executable/non-executable. - * Returns the previous executability setting of that page (which - * is used to restore the previous state). Used by the SMP bootup code. - * NOTE: this is an __init function for security reasons. - */ -static inline int set_kernel_exec(unsigned long vaddr, int enable) -{ - return 0; -} - -#define pte_offset_map(dir, address) \ - ((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address)) -#define pte_unmap(pte) do {} while (0) - -/* - * The MN10300 has external MMU info in the form of a TLB: this is adapted from - * the kernel page tables containing the necessary information by tlb-mn10300.S - */ -extern void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep); - -#endif /* !__ASSEMBLY__ */ - -#define kern_addr_valid(addr) (1) - -#define MK_IOSPACE_PFN(space, pfn) (pfn) -#define GET_IOSPACE(pfn) 0 -#define GET_PFN(pfn) (pfn) - -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR -#define __HAVE_ARCH_PTEP_SET_WRPROTECT -#define __HAVE_ARCH_PTEP_MKDIRTY -#define __HAVE_ARCH_PTE_SAME -#include <asm-generic/pgtable.h> - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_PGTABLE_H */ diff --git a/arch/mn10300/include/asm/pio-regs.h b/arch/mn10300/include/asm/pio-regs.h deleted file mode 100644 index 96bc8182d0ba..000000000000 --- a/arch/mn10300/include/asm/pio-regs.h +++ /dev/null @@ -1,233 +0,0 @@ -/* MN10300 On-board I/O port module registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PIO_REGS_H -#define _ASM_PIO_REGS_H - -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> - -#ifdef __KERNEL__ - -/* I/O port 0 */ -#define P0MD __SYSREG(0xdb000000, u16) /* mode reg */ -#define P0MD_0 0x0003 /* mask */ -#define P0MD_0_IN 0x0000 /* input mode */ -#define P0MD_0_OUT 0x0001 /* output mode */ -#define P0MD_0_TM0IO 0x0002 /* timer 0 I/O mode */ -#define P0MD_0_EYECLK 0x0003 /* test signal output (clock) */ -#define P0MD_1 0x000c -#define P0MD_1_IN 0x0000 -#define P0MD_1_OUT 0x0004 -#define P0MD_1_TM1IO 0x0008 /* timer 1 I/O mode */ -#define P0MD_1_EYED 0x000c /* test signal output (data) */ -#define P0MD_2 0x0030 -#define P0MD_2_IN 0x0000 -#define P0MD_2_OUT 0x0010 -#define P0MD_2_TM2IO 0x0020 /* timer 2 I/O mode */ -#define P0MD_3 0x00c0 -#define P0MD_3_IN 0x0000 -#define P0MD_3_OUT 0x0040 -#define P0MD_3_TM3IO 0x0080 /* timer 3 I/O mode */ -#define P0MD_4 0x0300 -#define P0MD_4_IN 0x0000 -#define P0MD_4_OUT 0x0100 -#define P0MD_4_TM4IO 0x0200 /* timer 4 I/O mode */ -#define P0MD_4_XCTS 0x0300 /* XCTS input for serial port 2 */ -#define P0MD_5 0x0c00 -#define P0MD_5_IN 0x0000 -#define P0MD_5_OUT 0x0400 -#define P0MD_5_TM5IO 0x0800 /* timer 5 I/O mode */ -#define P0MD_6 0x3000 -#define P0MD_6_IN 0x0000 -#define P0MD_6_OUT 0x1000 -#define P0MD_6_TM6IOA 0x2000 /* timer 6 I/O mode A */ -#define P0MD_7 0xc000 -#define P0MD_7_IN 0x0000 -#define P0MD_7_OUT 0x4000 -#define P0MD_7_TM6IOB 0x8000 /* timer 6 I/O mode B */ - -#define P0IN __SYSREG(0xdb000004, u8) /* in reg */ -#define P0OUT __SYSREG(0xdb000008, u8) /* out reg */ - -#define P0TMIO __SYSREG(0xdb00000c, u8) /* TM pin I/O control reg */ -#define P0TMIO_TM0_IN 0x00 -#define P0TMIO_TM0_OUT 0x01 -#define P0TMIO_TM1_IN 0x00 -#define P0TMIO_TM1_OUT 0x02 -#define P0TMIO_TM2_IN 0x00 -#define P0TMIO_TM2_OUT 0x04 -#define P0TMIO_TM3_IN 0x00 -#define P0TMIO_TM3_OUT 0x08 -#define P0TMIO_TM4_IN 0x00 -#define P0TMIO_TM4_OUT 0x10 -#define P0TMIO_TM5_IN 0x00 -#define P0TMIO_TM5_OUT 0x20 -#define P0TMIO_TM6A_IN 0x00 -#define P0TMIO_TM6A_OUT 0x40 -#define P0TMIO_TM6B_IN 0x00 -#define P0TMIO_TM6B_OUT 0x80 - -/* I/O port 1 */ -#define P1MD __SYSREG(0xdb000100, u16) /* mode reg */ -#define P1MD_0 0x0003 /* mask */ -#define P1MD_0_IN 0x0000 /* input mode */ -#define P1MD_0_OUT 0x0001 /* output mode */ -#define P1MD_0_TM7IO 0x0002 /* timer 7 I/O mode */ -#define P1MD_0_ADTRG 0x0003 /* A/D converter trigger mode */ -#define P1MD_1 0x000c -#define P1MD_1_IN 0x0000 -#define P1MD_1_OUT 0x0004 -#define P1MD_1_TM8IO 0x0008 /* timer 8 I/O mode */ -#define P1MD_1_XDMR0 0x000c /* DMA request input 0 mode */ -#define P1MD_2 0x0030 -#define P1MD_2_IN 0x0000 -#define P1MD_2_OUT 0x0010 -#define P1MD_2_TM9IO 0x0020 /* timer 9 I/O mode */ -#define P1MD_2_XDMR1 0x0030 /* DMA request input 1 mode */ -#define P1MD_3 0x00c0 -#define P1MD_3_IN 0x0000 -#define P1MD_3_OUT 0x0040 -#define P1MD_3_TM10IO 0x0080 /* timer 10 I/O mode */ -#define P1MD_3_FRQS0 0x00c0 /* CPU clock multiplier setting input 0 mode */ -#define P1MD_4 0x0300 -#define P1MD_4_IN 0x0000 -#define P1MD_4_OUT 0x0100 -#define P1MD_4_TM11IO 0x0200 /* timer 11 I/O mode */ -#define P1MD_4_FRQS1 0x0300 /* CPU clock multiplier setting input 1 mode */ - -#define P1IN __SYSREG(0xdb000104, u8) /* in reg */ -#define P1OUT __SYSREG(0xdb000108, u8) /* out reg */ -#define P1TMIO __SYSREG(0xdb00010c, u8) /* TM pin I/O control reg */ -#define P1TMIO_TM11_IN 0x00 -#define P1TMIO_TM11_OUT 0x01 -#define P1TMIO_TM10_IN 0x00 -#define P1TMIO_TM10_OUT 0x02 -#define P1TMIO_TM9_IN 0x00 -#define P1TMIO_TM9_OUT 0x04 -#define P1TMIO_TM8_IN 0x00 -#define P1TMIO_TM8_OUT 0x08 -#define P1TMIO_TM7_IN 0x00 -#define P1TMIO_TM7_OUT 0x10 - -/* I/O port 2 */ -#define P2MD __SYSREG(0xdb000200, u16) /* mode reg */ -#define P2MD_0 0x0003 /* mask */ -#define P2MD_0_IN 0x0000 /* input mode */ -#define P2MD_0_OUT 0x0001 /* output mode */ -#define P2MD_0_BOOTBW 0x0003 /* boot bus width selector mode */ -#define P2MD_1 0x000c -#define P2MD_1_IN 0x0000 -#define P2MD_1_OUT 0x0004 -#define P2MD_1_BOOTSEL 0x000c /* boot device selector mode */ -#define P2MD_2 0x0030 -#define P2MD_2_IN 0x0000 -#define P2MD_2_OUT 0x0010 -#define P2MD_3 0x00c0 -#define P2MD_3_IN 0x0000 -#define P2MD_3_OUT 0x0040 -#define P2MD_3_CKIO 0x00c0 /* mode */ -#define P2MD_4 0x0300 -#define P2MD_4_IN 0x0000 -#define P2MD_4_OUT 0x0100 -#define P2MD_4_CMOD 0x0300 /* mode */ - -#define P2IN __SYSREG(0xdb000204, u8) /* in reg */ -#define P2OUT __SYSREG(0xdb000208, u8) /* out reg */ -#define P2TMIO __SYSREG(0xdb00020c, u8) /* TM pin I/O control reg */ - -/* I/O port 3 */ -#define P3MD __SYSREG(0xdb000300, u16) /* mode reg */ -#define P3MD_0 0x0003 /* mask */ -#define P3MD_0_IN 0x0000 /* input mode */ -#define P3MD_0_OUT 0x0001 /* output mode */ -#define P3MD_0_AFRXD 0x0002 /* AFR interface mode */ -#define P3MD_1 0x000c -#define P3MD_1_IN 0x0000 -#define P3MD_1_OUT 0x0004 -#define P3MD_1_AFTXD 0x0008 /* AFR interface mode */ -#define P3MD_2 0x0030 -#define P3MD_2_IN 0x0000 -#define P3MD_2_OUT 0x0010 -#define P3MD_2_AFSCLK 0x0020 /* AFR interface mode */ -#define P3MD_3 0x00c0 -#define P3MD_3_IN 0x0000 -#define P3MD_3_OUT 0x0040 -#define P3MD_3_AFFS 0x0080 /* AFR interface mode */ -#define P3MD_4 0x0300 -#define P3MD_4_IN 0x0000 -#define P3MD_4_OUT 0x0100 -#define P3MD_4_AFEHC 0x0200 /* AFR interface mode */ - -#define P3IN __SYSREG(0xdb000304, u8) /* in reg */ -#define P3OUT __SYSREG(0xdb000308, u8) /* out reg */ - -/* I/O port 4 */ -#define P4MD __SYSREG(0xdb000400, u16) /* mode reg */ -#define P4MD_0 0x0003 /* mask */ -#define P4MD_0_IN 0x0000 /* input mode */ -#define P4MD_0_OUT 0x0001 /* output mode */ -#define P4MD_0_SCL0 0x0002 /* I2C/serial mode */ -#define P4MD_1 0x000c -#define P4MD_1_IN 0x0000 -#define P4MD_1_OUT 0x0004 -#define P4MD_1_SDA0 0x0008 -#define P4MD_2 0x0030 -#define P4MD_2_IN 0x0000 -#define P4MD_2_OUT 0x0010 -#define P4MD_2_SCL1 0x0020 -#define P4MD_3 0x00c0 -#define P4MD_3_IN 0x0000 -#define P4MD_3_OUT 0x0040 -#define P4MD_3_SDA1 0x0080 -#define P4MD_4 0x0300 -#define P4MD_4_IN 0x0000 -#define P4MD_4_OUT 0x0100 -#define P4MD_4_SBO0 0x0200 -#define P4MD_5 0x0c00 -#define P4MD_5_IN 0x0000 -#define P4MD_5_OUT 0x0400 -#define P4MD_5_SBO1 0x0800 -#define P4MD_6 0x3000 -#define P4MD_6_IN 0x0000 -#define P4MD_6_OUT 0x1000 -#define P4MD_6_SBT0 0x2000 -#define P4MD_7 0xc000 -#define P4MD_7_IN 0x0000 -#define P4MD_7_OUT 0x4000 -#define P4MD_7_SBT1 0x8000 - -#define P4IN __SYSREG(0xdb000404, u8) /* in reg */ -#define P4OUT __SYSREG(0xdb000408, u8) /* out reg */ - -/* I/O port 5 */ -#define P5MD __SYSREG(0xdb000500, u16) /* mode reg */ -#define P5MD_0 0x0003 /* mask */ -#define P5MD_0_IN 0x0000 /* input mode */ -#define P5MD_0_OUT 0x0001 /* output mode */ -#define P5MD_0_IRTXD 0x0002 /* IrDA mode */ -#define P5MD_0_SOUT 0x0004 /* serial mode */ -#define P5MD_1 0x000c -#define P5MD_1_IN 0x0000 -#define P5MD_1_OUT 0x0004 -#define P5MD_1_IRRXDS 0x0008 /* IrDA mode */ -#define P5MD_1_SIN 0x000c /* serial mode */ -#define P5MD_2 0x0030 -#define P5MD_2_IN 0x0000 -#define P5MD_2_OUT 0x0010 -#define P5MD_2_IRRXDF 0x0020 /* IrDA mode */ - -#define P5IN __SYSREG(0xdb000504, u8) /* in reg */ -#define P5OUT __SYSREG(0xdb000508, u8) /* out reg */ - - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PIO_REGS_H */ diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h deleted file mode 100644 index 3ae479117b42..000000000000 --- a/arch/mn10300/include/asm/processor.h +++ /dev/null @@ -1,171 +0,0 @@ -/* MN10300 Processor specifics - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_PROCESSOR_H -#define _ASM_PROCESSOR_H - -#include <linux/threads.h> -#include <linux/thread_info.h> -#include <asm/page.h> -#include <asm/ptrace.h> -#include <asm/cpu-regs.h> -#include <asm/current.h> - -/* Forward declaration, a strange C thing */ -struct task_struct; -struct mm_struct; - -/* - * Default implementation of macro that returns current - * instruction pointer ("program counter"). - */ -#define current_text_addr() \ -({ \ - void *__pc; \ - asm("mov pc,%0" : "=a"(__pc)); \ - __pc; \ -}) - -extern void get_mem_info(unsigned long *mem_base, unsigned long *mem_size); - -extern void show_registers(struct pt_regs *regs); - -/* - * CPU type and hardware bug flags. Kept separately for each CPU. - * Members of this structure are referenced in head.S, so think twice - * before touching them. [mj] - */ - -struct mn10300_cpuinfo { - int type; - unsigned long loops_per_jiffy; - char hard_math; -}; - -extern struct mn10300_cpuinfo boot_cpu_data; - -#ifdef CONFIG_SMP -#if CONFIG_NR_CPUS < 2 || CONFIG_NR_CPUS > 8 -# error Sorry, NR_CPUS should be 2 to 8 -#endif -extern struct mn10300_cpuinfo cpu_data[]; -#define current_cpu_data cpu_data[smp_processor_id()] -#else /* CONFIG_SMP */ -#define cpu_data &boot_cpu_data -#define current_cpu_data boot_cpu_data -#endif /* CONFIG_SMP */ - -extern void identify_cpu(struct mn10300_cpuinfo *); -extern void print_cpu_info(struct mn10300_cpuinfo *); -extern void dodgy_tsc(void); - -#define cpu_relax() barrier() - -/* - * User space process size: 1.75GB (default). - */ -#define TASK_SIZE 0x70000000 - -/* - * Where to put the userspace stack by default - */ -#define STACK_TOP 0x70000000 -#define STACK_TOP_MAX STACK_TOP - -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE 0x30000000 - -struct fpu_state_struct { - unsigned long fs[32]; /* fpu registers */ - unsigned long fpcr; /* fpu control register */ -}; - -struct thread_struct { - struct pt_regs *uregs; /* userspace register frame */ - unsigned long pc; /* kernel PC */ - unsigned long sp; /* kernel SP */ - unsigned long a3; /* kernel FP */ - unsigned long wchan; - unsigned long usp; - unsigned long fpu_flags; -#define THREAD_USING_FPU 0x00000001 /* T if this task is using the FPU */ -#define THREAD_HAS_FPU 0x00000002 /* T if this task owns the FPU right now */ - struct fpu_state_struct fpu_state; -}; - -#define INIT_THREAD \ -{ \ - .uregs = init_uregs, \ - .pc = 0, \ - .sp = 0, \ - .a3 = 0, \ - .wchan = 0, \ -} - -#define INIT_MMAP \ -{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, \ - NULL, NULL } - -/* - * do necessary setup to start up a newly executed thread - */ -static inline void start_thread(struct pt_regs *regs, - unsigned long new_pc, unsigned long new_sp) -{ - regs->epsw = EPSW_nSL | EPSW_IE | EPSW_IM; - regs->pc = new_pc; - regs->sp = new_sp; -} - - -/* Free all resources held by a thread. */ -extern void release_thread(struct task_struct *); - -unsigned long get_wchan(struct task_struct *p); - -#define task_pt_regs(task) ((task)->thread.uregs) -#define KSTK_EIP(task) (task_pt_regs(task)->pc) -#define KSTK_ESP(task) (task_pt_regs(task)->sp) - -#define KSTK_TOP(info) \ -({ \ - (unsigned long)(info) + THREAD_SIZE; \ -}) - -#define ARCH_HAS_PREFETCH -#define ARCH_HAS_PREFETCHW - -static inline void prefetch(const void *x) -{ -#ifdef CONFIG_MN10300_CACHE_ENABLED -#ifdef CONFIG_MN10300_PROC_MN103E010 - asm volatile ("nop; nop; dcpf (%0)" : : "r"(x)); -#else - asm volatile ("dcpf (%0)" : : "r"(x)); -#endif -#endif -} - -static inline void prefetchw(const void *x) -{ -#ifdef CONFIG_MN10300_CACHE_ENABLED -#ifdef CONFIG_MN10300_PROC_MN103E010 - asm volatile ("nop; nop; dcpf (%0)" : : "r"(x)); -#else - asm volatile ("dcpf (%0)" : : "r"(x)); -#endif -#endif -} - -#endif /* _ASM_PROCESSOR_H */ diff --git a/arch/mn10300/include/asm/ptrace.h b/arch/mn10300/include/asm/ptrace.h deleted file mode 100644 index 838a3830010e..000000000000 --- a/arch/mn10300/include/asm/ptrace.h +++ /dev/null @@ -1,26 +0,0 @@ -/* MN10300 Exception frame layout and ptrace constants - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PTRACE_H -#define _ASM_PTRACE_H - -#include <uapi/asm/ptrace.h> - - -#define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL) -#define instruction_pointer(regs) ((regs)->pc) -#define user_stack_pointer(regs) ((regs)->sp) -#define current_pt_regs() current_frame() - -#define arch_has_single_step() (1) - -#define profile_pc(regs) ((regs)->pc) - -#endif /* _ASM_PTRACE_H */ diff --git a/arch/mn10300/include/asm/reset-regs.h b/arch/mn10300/include/asm/reset-regs.h deleted file mode 100644 index 8ca2a42d365b..000000000000 --- a/arch/mn10300/include/asm/reset-regs.h +++ /dev/null @@ -1,60 +0,0 @@ -/* MN10300 Reset controller and watchdog timer definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_RESET_REGS_H -#define _ASM_RESET_REGS_H - -#include <asm/cpu-regs.h> -#include <asm/exceptions.h> - -#ifdef __KERNEL__ - -/* - * watchdog timer registers - */ -#define WDBC __SYSREGC(0xc0001000, u8) /* watchdog binary counter reg */ - -#define WDCTR __SYSREG(0xc0001002, u8) /* watchdog timer control reg */ -#define WDCTR_WDCK 0x07 /* clock source selection */ -#define WDCTR_WDCK_256th 0x00 /* - OSCI/256 */ -#define WDCTR_WDCK_1024th 0x01 /* - OSCI/1024 */ -#define WDCTR_WDCK_2048th 0x02 /* - OSCI/2048 */ -#define WDCTR_WDCK_16384th 0x03 /* - OSCI/16384 */ -#define WDCTR_WDCK_65536th 0x04 /* - OSCI/65536 */ -#define WDCTR_WDRST 0x40 /* binary counter reset */ -#define WDCTR_WDCNE 0x80 /* watchdog timer enable */ - -#define RSTCTR __SYSREG(0xc0001004, u8) /* reset control reg */ -#define RSTCTR_CHIPRST 0x01 /* chip reset */ -#define RSTCTR_DBFRST 0x02 /* double fault reset flag */ -#define RSTCTR_WDTRST 0x04 /* watchdog timer reset flag */ -#define RSTCTR_WDREN 0x08 /* watchdog timer reset enable */ - -#ifndef __ASSEMBLY__ - -static inline void mn10300_proc_hard_reset(void) -{ - RSTCTR &= ~RSTCTR_CHIPRST; - RSTCTR |= RSTCTR_CHIPRST; -} - -extern unsigned int watchdog_alert_counter[]; - -extern void watchdog_go(void); -extern asmlinkage void watchdog_handler(void); -extern asmlinkage -void watchdog_interrupt(struct pt_regs *, enum exception_code); - -#endif - -#endif /* __KERNEL__ */ - -#endif /* _ASM_RESET_REGS_H */ diff --git a/arch/mn10300/include/asm/rtc-regs.h b/arch/mn10300/include/asm/rtc-regs.h deleted file mode 100644 index c81cacecb6e3..000000000000 --- a/arch/mn10300/include/asm/rtc-regs.h +++ /dev/null @@ -1,86 +0,0 @@ -/* MN10300 on-chip Real-Time Clock registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_RTC_REGS_H -#define _ASM_RTC_REGS_H - -#include <asm/intctl-regs.h> - -#ifdef __KERNEL__ - -#define RTSCR __SYSREG(0xd8600000, u8) /* RTC seconds count reg */ -#define RTSAR __SYSREG(0xd8600001, u8) /* RTC seconds alarm reg */ -#define RTMCR __SYSREG(0xd8600002, u8) /* RTC minutes count reg */ -#define RTMAR __SYSREG(0xd8600003, u8) /* RTC minutes alarm reg */ -#define RTHCR __SYSREG(0xd8600004, u8) /* RTC hours count reg */ -#define RTHAR __SYSREG(0xd8600005, u8) /* RTC hours alarm reg */ -#define RTDWCR __SYSREG(0xd8600006, u8) /* RTC day of the week count reg */ -#define RTDMCR __SYSREG(0xd8600007, u8) /* RTC days count reg */ -#define RTMTCR __SYSREG(0xd8600008, u8) /* RTC months count reg */ -#define RTYCR __SYSREG(0xd8600009, u8) /* RTC years count reg */ - -#define RTCRA __SYSREG(0xd860000a, u8)/* RTC control reg A */ -#define RTCRA_RS 0x0f /* periodic timer interrupt cycle setting */ -#define RTCRA_RS_NONE 0x00 /* - off */ -#define RTCRA_RS_3_90625ms 0x01 /* - 3.90625ms (1/256s) */ -#define RTCRA_RS_7_8125ms 0x02 /* - 7.8125ms (1/128s) */ -#define RTCRA_RS_122_070us 0x03 /* - 122.070us (1/8192s) */ -#define RTCRA_RS_244_141us 0x04 /* - 244.141us (1/4096s) */ -#define RTCRA_RS_488_281us 0x05 /* - 488.281us (1/2048s) */ -#define RTCRA_RS_976_5625us 0x06 /* - 976.5625us (1/1024s) */ -#define RTCRA_RS_1_953125ms 0x07 /* - 1.953125ms (1/512s) */ -#define RTCRA_RS_3_90624ms 0x08 /* - 3.90624ms (1/256s) */ -#define RTCRA_RS_7_8125ms_b 0x09 /* - 7.8125ms (1/128s) */ -#define RTCRA_RS_15_625ms 0x0a /* - 15.625ms (1/64s) */ -#define RTCRA_RS_31_25ms 0x0b /* - 31.25ms (1/32s) */ -#define RTCRA_RS_62_5ms 0x0c /* - 62.5ms (1/16s) */ -#define RTCRA_RS_125ms 0x0d /* - 125ms (1/8s) */ -#define RTCRA_RS_250ms 0x0e /* - 250ms (1/4s) */ -#define RTCRA_RS_500ms 0x0f /* - 500ms (1/2s) */ -#define RTCRA_DVR 0x40 /* divider reset */ -#define RTCRA_UIP 0x80 /* clock update flag */ - -#define RTCRB __SYSREG(0xd860000b, u8) /* RTC control reg B */ -#define RTCRB_DSE 0x01 /* daylight savings time enable */ -#define RTCRB_TM 0x02 /* time format */ -#define RTCRB_TM_12HR 0x00 /* - 12 hour format */ -#define RTCRB_TM_24HR 0x02 /* - 24 hour format */ -#define RTCRB_DM 0x04 /* numeric value format */ -#define RTCRB_DM_BCD 0x00 /* - BCD */ -#define RTCRB_DM_BINARY 0x04 /* - binary */ -#define RTCRB_UIE 0x10 /* update interrupt disable */ -#define RTCRB_AIE 0x20 /* alarm interrupt disable */ -#define RTCRB_PIE 0x40 /* periodic interrupt disable */ -#define RTCRB_SET 0x80 /* clock update enable */ - -#define RTSRC __SYSREG(0xd860000c, u8) /* RTC status reg C */ -#define RTSRC_UF 0x10 /* update end interrupt flag */ -#define RTSRC_AF 0x20 /* alarm interrupt flag */ -#define RTSRC_PF 0x40 /* periodic interrupt flag */ -#define RTSRC_IRQF 0x80 /* interrupt flag */ - -#define RTIRQ 32 -#define RTICR GxICR(RTIRQ) - -/* - * MC146818 RTC compatibility defs for the MN10300 on-chip RTC - */ -#define RTC_PORT(x) 0xd8600000 -#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ - -#define CMOS_READ(addr) __SYSREG(0xd8600000 + (u32)(addr), u8) -#define CMOS_WRITE(val, addr) \ - do { __SYSREG(0xd8600000 + (u32)(addr), u8) = val; } while (0) - -#define RTC_IRQ RTIRQ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_RTC_REGS_H */ diff --git a/arch/mn10300/include/asm/rtc.h b/arch/mn10300/include/asm/rtc.h deleted file mode 100644 index 07dc87656197..000000000000 --- a/arch/mn10300/include/asm/rtc.h +++ /dev/null @@ -1,28 +0,0 @@ -/* MN10300 Real time clock definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_RTC_H -#define _ASM_RTC_H - -#ifdef CONFIG_MN10300_RTC - -#include <linux/init.h> - -extern void __init calibrate_clock(void); - -#else /* !CONFIG_MN10300_RTC */ - -static inline void calibrate_clock(void) -{ -} - -#endif /* !CONFIG_MN10300_RTC */ - -#endif /* _ASM_RTC_H */ diff --git a/arch/mn10300/include/asm/rwlock.h b/arch/mn10300/include/asm/rwlock.h deleted file mode 100644 index 6d594d4a0e10..000000000000 --- a/arch/mn10300/include/asm/rwlock.h +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Helpers used by both rw spinlocks and rw semaphores. - * - * Based in part on code from semaphore.h and - * spinlock.h Copyright 1996 Linus Torvalds. - * - * Copyright 1999 Red Hat, Inc. - * - * Written by Benjamin LaHaise. - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 13-Nov-2006 MEI Temporarily delete lock functions for SMP support. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - */ -#ifndef _ASM_RWLOCK_H -#define _ASM_RWLOCK_H - -#define RW_LOCK_BIAS 0x01000000 - -#ifndef CONFIG_SMP - -typedef struct { unsigned long a[100]; } __dummy_lock_t; -#define __dummy_lock(lock) (*(__dummy_lock_t *)(lock)) - -#define RW_LOCK_BIAS_STR "0x01000000" - -#define __build_read_lock_ptr(rw, helper) \ - do { \ - asm volatile( \ - " mov (%0),d3 \n" \ - " sub 1,d3 \n" \ - " mov d3,(%0) \n" \ - " blt 1f \n" \ - " bra 2f \n" \ - "1: jmp 3f \n" \ - "2: \n" \ - " .section .text.lock,\"ax\" \n" \ - "3: call "helper"[],0 \n" \ - " jmp 2b \n" \ - " .previous" \ - : \ - : "d" (rw) \ - : "memory", "d3", "cc"); \ - } while (0) - -#define __build_read_lock_const(rw, helper) \ - do { \ - asm volatile( \ - " mov (%0),d3 \n" \ - " sub 1,d3 \n" \ - " mov d3,(%0) \n" \ - " blt 1f \n" \ - " bra 2f \n" \ - "1: jmp 3f \n" \ - "2: \n" \ - " .section .text.lock,\"ax\" \n" \ - "3: call "helper"[],0 \n" \ - " jmp 2b \n" \ - " .previous" \ - : \ - : "d" (rw) \ - : "memory", "d3", "cc"); \ - } while (0) - -#define __build_read_lock(rw, helper) \ - do { \ - if (__builtin_constant_p(rw)) \ - __build_read_lock_const(rw, helper); \ - else \ - __build_read_lock_ptr(rw, helper); \ - } while (0) - -#define __build_write_lock_ptr(rw, helper) \ - do { \ - asm volatile( \ - " mov (%0),d3 \n" \ - " sub 1,d3 \n" \ - " mov d3,(%0) \n" \ - " blt 1f \n" \ - " bra 2f \n" \ - "1: jmp 3f \n" \ - "2: \n" \ - " .section .text.lock,\"ax\" \n" \ - "3: call "helper"[],0 \n" \ - " jmp 2b \n" \ - " .previous" \ - : \ - : "d" (rw) \ - : "memory", "d3", "cc"); \ - } while (0) - -#define __build_write_lock_const(rw, helper) \ - do { \ - asm volatile( \ - " mov (%0),d3 \n" \ - " sub 1,d3 \n" \ - " mov d3,(%0) \n" \ - " blt 1f \n" \ - " bra 2f \n" \ - "1: jmp 3f \n" \ - "2: \n" \ - " .section .text.lock,\"ax\" \n" \ - "3: call "helper"[],0 \n" \ - " jmp 2b \n" \ - " .previous" \ - : \ - : "d" (rw) \ - : "memory", "d3", "cc"); \ - } while (0) - -#define __build_write_lock(rw, helper) \ - do { \ - if (__builtin_constant_p(rw)) \ - __build_write_lock_const(rw, helper); \ - else \ - __build_write_lock_ptr(rw, helper); \ - } while (0) - -#endif /* CONFIG_SMP */ -#endif /* _ASM_RWLOCK_H */ diff --git a/arch/mn10300/include/asm/serial-regs.h b/arch/mn10300/include/asm/serial-regs.h deleted file mode 100644 index 8320cda32f5a..000000000000 --- a/arch/mn10300/include/asm/serial-regs.h +++ /dev/null @@ -1,191 +0,0 @@ -/* MN10300 on-board serial port module registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_SERIAL_REGS_H -#define _ASM_SERIAL_REGS_H - -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> - -#ifdef __KERNEL__ - -/* serial port 0 */ -#define SC0CTR __SYSREG(0xd4002000, u16) /* control reg */ -#define SC01CTR_CK 0x0007 /* clock source select */ -#define SC01CTR_CK_IOCLK_8 0x0001 /* - 1/8 IOCLK */ -#define SC01CTR_CK_IOCLK_32 0x0002 /* - 1/32 IOCLK */ -#define SC01CTR_CK_EXTERN_8 0x0006 /* - 1/8 external closk */ -#define SC01CTR_CK_EXTERN 0x0007 /* - external closk */ -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) -#define SC0CTR_CK_TM8UFLOW_8 0x0000 /* - 1/8 timer 8 underflow (serial port 0 only) */ -#define SC0CTR_CK_TM2UFLOW_2 0x0003 /* - 1/2 timer 2 underflow (serial port 0 only) */ -#define SC0CTR_CK_TM0UFLOW_8 0x0004 /* - 1/8 timer 0 underflow (serial port 0 only) */ -#define SC0CTR_CK_TM2UFLOW_8 0x0005 /* - 1/8 timer 2 underflow (serial port 0 only) */ -#define SC1CTR_CK_TM9UFLOW_8 0x0000 /* - 1/8 timer 9 underflow (serial port 1 only) */ -#define SC1CTR_CK_TM3UFLOW_2 0x0003 /* - 1/2 timer 3 underflow (serial port 1 only) */ -#define SC1CTR_CK_TM1UFLOW_8 0x0004 /* - 1/8 timer 1 underflow (serial port 1 only) */ -#define SC1CTR_CK_TM3UFLOW_8 0x0005 /* - 1/8 timer 3 underflow (serial port 1 only) */ -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ -#define SC0CTR_CK_TM8UFLOW_8 0x0000 /* - 1/8 timer 8 underflow (serial port 0 only) */ -#define SC0CTR_CK_TM0UFLOW_8 0x0004 /* - 1/8 timer 0 underflow (serial port 0 only) */ -#define SC0CTR_CK_TM2UFLOW_8 0x0005 /* - 1/8 timer 2 underflow (serial port 0 only) */ -#define SC1CTR_CK_TM12UFLOW_8 0x0000 /* - 1/8 timer 12 underflow (serial port 1 only) */ -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ -#define SC01CTR_STB 0x0008 /* stop bit select */ -#define SC01CTR_STB_1BIT 0x0000 /* - 1 stop bit */ -#define SC01CTR_STB_2BIT 0x0008 /* - 2 stop bits */ -#define SC01CTR_PB 0x0070 /* parity bit select */ -#define SC01CTR_PB_NONE 0x0000 /* - no parity */ -#define SC01CTR_PB_FIXED0 0x0040 /* - fixed at 0 */ -#define SC01CTR_PB_FIXED1 0x0050 /* - fixed at 1 */ -#define SC01CTR_PB_EVEN 0x0060 /* - even parity */ -#define SC01CTR_PB_ODD 0x0070 /* - odd parity */ -#define SC01CTR_CLN 0x0080 /* character length */ -#define SC01CTR_CLN_7BIT 0x0000 /* - 7 bit chars */ -#define SC01CTR_CLN_8BIT 0x0080 /* - 8 bit chars */ -#define SC01CTR_TOE 0x0100 /* T input output enable */ -#define SC01CTR_OD 0x0200 /* bit order select */ -#define SC01CTR_OD_LSBFIRST 0x0000 /* - LSB first */ -#define SC01CTR_OD_MSBFIRST 0x0200 /* - MSB first */ -#define SC01CTR_MD 0x0c00 /* mode select */ -#define SC01CTR_MD_STST_SYNC 0x0000 /* - start-stop synchronous */ -#define SC01CTR_MD_CLOCK_SYNC1 0x0400 /* - clock synchronous 1 */ -#define SC01CTR_MD_I2C 0x0800 /* - I2C mode */ -#define SC01CTR_MD_CLOCK_SYNC2 0x0c00 /* - clock synchronous 2 */ -#define SC01CTR_IIC 0x1000 /* I2C mode select */ -#define SC01CTR_BKE 0x2000 /* break transmit enable */ -#define SC01CTR_RXE 0x4000 /* receive enable */ -#define SC01CTR_TXE 0x8000 /* transmit enable */ - -#define SC0ICR __SYSREG(0xd4002004, u8) /* interrupt control reg */ -#define SC01ICR_DMD 0x80 /* output data mode */ -#define SC01ICR_TD 0x20 /* transmit DMA trigger cause */ -#define SC01ICR_TI 0x10 /* transmit interrupt cause */ -#define SC01ICR_RES 0x04 /* receive error select */ -#define SC01ICR_RI 0x01 /* receive interrupt cause */ - -#define SC0TXB __SYSREG(0xd4002008, u8) /* transmit buffer reg */ -#define SC0RXB __SYSREG(0xd4002009, u8) /* receive buffer reg */ - -#define SC0STR __SYSREG(0xd400200c, u16) /* status reg */ -#define SC01STR_OEF 0x0001 /* overrun error found */ -#define SC01STR_PEF 0x0002 /* parity error found */ -#define SC01STR_FEF 0x0004 /* framing error found */ -#define SC01STR_RBF 0x0010 /* receive buffer status */ -#define SC01STR_TBF 0x0020 /* transmit buffer status */ -#define SC01STR_RXF 0x0040 /* receive status */ -#define SC01STR_TXF 0x0080 /* transmit status */ -#define SC01STR_STF 0x0100 /* I2C start sequence found */ -#define SC01STR_SPF 0x0200 /* I2C stop sequence found */ - -#define SC0RXIRQ 20 /* timer 0 Receive IRQ */ -#define SC0TXIRQ 21 /* timer 0 Transmit IRQ */ - -#define SC0RXICR GxICR(SC0RXIRQ) /* serial 0 receive intr ctrl reg */ -#define SC0TXICR GxICR(SC0TXIRQ) /* serial 0 transmit intr ctrl reg */ - -/* serial port 1 */ -#define SC1CTR __SYSREG(0xd4002010, u16) /* serial port 1 control */ -#define SC1ICR __SYSREG(0xd4002014, u8) /* interrupt control reg */ -#define SC1TXB __SYSREG(0xd4002018, u8) /* transmit buffer reg */ -#define SC1RXB __SYSREG(0xd4002019, u8) /* receive buffer reg */ -#define SC1STR __SYSREG(0xd400201c, u16) /* status reg */ - -#define SC1RXIRQ 22 /* timer 1 Receive IRQ */ -#define SC1TXIRQ 23 /* timer 1 Transmit IRQ */ - -#define SC1RXICR GxICR(SC1RXIRQ) /* serial 1 receive intr ctrl reg */ -#define SC1TXICR GxICR(SC1TXIRQ) /* serial 1 transmit intr ctrl reg */ - -/* serial port 2 */ -#define SC2CTR __SYSREG(0xd4002020, u16) /* control reg */ -#ifdef CONFIG_AM33_2 -#define SC2CTR_CK 0x0003 /* clock source select */ -#define SC2CTR_CK_TM10UFLOW 0x0000 /* - timer 10 underflow */ -#define SC2CTR_CK_TM2UFLOW 0x0001 /* - timer 2 underflow */ -#define SC2CTR_CK_EXTERN 0x0002 /* - external closk */ -#define SC2CTR_CK_TM3UFLOW 0x0003 /* - timer 3 underflow */ -#else /* CONFIG_AM33_2 */ -#define SC2CTR_CK 0x0007 /* clock source select */ -#define SC2CTR_CK_TM9UFLOW_8 0x0000 /* - 1/8 timer 9 underflow */ -#define SC2CTR_CK_IOCLK_8 0x0001 /* - 1/8 IOCLK */ -#define SC2CTR_CK_IOCLK_32 0x0002 /* - 1/32 IOCLK */ -#define SC2CTR_CK_TM3UFLOW_2 0x0003 /* - 1/2 timer 3 underflow */ -#define SC2CTR_CK_TM1UFLOW_8 0x0004 /* - 1/8 timer 1 underflow */ -#define SC2CTR_CK_TM3UFLOW_8 0x0005 /* - 1/8 timer 3 underflow */ -#define SC2CTR_CK_EXTERN_8 0x0006 /* - 1/8 external closk */ -#define SC2CTR_CK_EXTERN 0x0007 /* - external closk */ -#endif /* CONFIG_AM33_2 */ -#define SC2CTR_STB 0x0008 /* stop bit select */ -#define SC2CTR_STB_1BIT 0x0000 /* - 1 stop bit */ -#define SC2CTR_STB_2BIT 0x0008 /* - 2 stop bits */ -#define SC2CTR_PB 0x0070 /* parity bit select */ -#define SC2CTR_PB_NONE 0x0000 /* - no parity */ -#define SC2CTR_PB_FIXED0 0x0040 /* - fixed at 0 */ -#define SC2CTR_PB_FIXED1 0x0050 /* - fixed at 1 */ -#define SC2CTR_PB_EVEN 0x0060 /* - even parity */ -#define SC2CTR_PB_ODD 0x0070 /* - odd parity */ -#define SC2CTR_CLN 0x0080 /* character length */ -#define SC2CTR_CLN_7BIT 0x0000 /* - 7 bit chars */ -#define SC2CTR_CLN_8BIT 0x0080 /* - 8 bit chars */ -#define SC2CTR_TWE 0x0100 /* transmit wait enable (enable XCTS control) */ -#define SC2CTR_OD 0x0200 /* bit order select */ -#define SC2CTR_OD_LSBFIRST 0x0000 /* - LSB first */ -#define SC2CTR_OD_MSBFIRST 0x0200 /* - MSB first */ -#define SC2CTR_TWS 0x1000 /* transmit wait select */ -#define SC2CTR_TWS_XCTS_HIGH 0x0000 /* - interrupt TX when XCTS high */ -#define SC2CTR_TWS_XCTS_LOW 0x1000 /* - interrupt TX when XCTS low */ -#define SC2CTR_BKE 0x2000 /* break transmit enable */ -#define SC2CTR_RXE 0x4000 /* receive enable */ -#define SC2CTR_TXE 0x8000 /* transmit enable */ - -#define SC2ICR __SYSREG(0xd4002024, u8) /* interrupt control reg */ -#define SC2ICR_TD 0x20 /* transmit DMA trigger cause */ -#define SC2ICR_TI 0x10 /* transmit interrupt cause */ -#define SC2ICR_RES 0x04 /* receive error select */ -#define SC2ICR_RI 0x01 /* receive interrupt cause */ - -#define SC2TXB __SYSREG(0xd4002028, u8) /* transmit buffer reg */ -#define SC2RXB __SYSREG(0xd4002029, u8) /* receive buffer reg */ - -#ifdef CONFIG_AM33_2 -#define SC2STR __SYSREG(0xd400202c, u8) /* status reg */ -#else /* CONFIG_AM33_2 */ -#define SC2STR __SYSREG(0xd400202c, u16) /* status reg */ -#endif /* CONFIG_AM33_2 */ -#define SC2STR_OEF 0x0001 /* overrun error found */ -#define SC2STR_PEF 0x0002 /* parity error found */ -#define SC2STR_FEF 0x0004 /* framing error found */ -#define SC2STR_CTS 0x0008 /* XCTS input pin status (0 means high) */ -#define SC2STR_RBF 0x0010 /* receive buffer status */ -#define SC2STR_TBF 0x0020 /* transmit buffer status */ -#define SC2STR_RXF 0x0040 /* receive status */ -#define SC2STR_TXF 0x0080 /* transmit status */ - -#ifdef CONFIG_AM33_2 -#define SC2TIM __SYSREG(0xd400202d, u8) /* status reg */ -#endif - -#ifdef CONFIG_AM33_2 -#define SC2RXIRQ 24 /* serial 2 Receive IRQ */ -#define SC2TXIRQ 25 /* serial 2 Transmit IRQ */ -#else /* CONFIG_AM33_2 */ -#define SC2RXIRQ 68 /* serial 2 Receive IRQ */ -#define SC2TXIRQ 69 /* serial 2 Transmit IRQ */ -#endif /* CONFIG_AM33_2 */ - -#define SC2RXICR GxICR(SC2RXIRQ) /* serial 2 receive intr ctrl reg */ -#define SC2TXICR GxICR(SC2TXIRQ) /* serial 2 transmit intr ctrl reg */ - - -#endif /* __KERNEL__ */ - -#endif /* _ASM_SERIAL_REGS_H */ diff --git a/arch/mn10300/include/asm/serial.h b/arch/mn10300/include/asm/serial.h deleted file mode 100644 index 594ebff15d3f..000000000000 --- a/arch/mn10300/include/asm/serial.h +++ /dev/null @@ -1,36 +0,0 @@ -/* Standard UART definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_SERIAL_H -#define _ASM_SERIAL_H - -/* Standard COM flags (except for COM4, because of the 8514 problem) */ -#ifdef CONFIG_SERIAL_8250_DETECT_IRQ -#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ) -#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ) -#else -#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) -#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF -#endif - -#ifdef CONFIG_SERIAL_8250_MANY_PORTS -#define FOURPORT_FLAGS UPF_FOURPORT -#define ACCENT_FLAGS 0 -#define BOCA_FLAGS 0 -#define HUB6_FLAGS 0 -#define RS_TABLE_SIZE 64 -#else -#define RS_TABLE_SIZE -#endif - -#include <unit/serial.h> - -#endif /* _ASM_SERIAL_H */ diff --git a/arch/mn10300/include/asm/setup.h b/arch/mn10300/include/asm/setup.h deleted file mode 100644 index fb024555d2a9..000000000000 --- a/arch/mn10300/include/asm/setup.h +++ /dev/null @@ -1,18 +0,0 @@ -/* MN10300 Setup declarations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SETUP_H -#define _ASM_SETUP_H - -#include <uapi/asm/setup.h> - -extern void __init unit_setup(void); -extern void __init unit_init_IRQ(void); -#endif /* _ASM_SETUP_H */ diff --git a/arch/mn10300/include/asm/shmparam.h b/arch/mn10300/include/asm/shmparam.h deleted file mode 100644 index 3a31faaa4353..000000000000 --- a/arch/mn10300/include/asm/shmparam.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_SHMPARAM_H -#define _ASM_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* _ASM_SHMPARAM_H */ diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h deleted file mode 100644 index 214ff5e9fe60..000000000000 --- a/arch/mn10300/include/asm/signal.h +++ /dev/null @@ -1,33 +0,0 @@ -/* MN10300 Signal definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SIGNAL_H -#define _ASM_SIGNAL_H - -#include <uapi/asm/signal.h> - -/* Most things should be clean enough to redefine this at will, if care - is taken to make libc match. */ - -#define _NSIG 64 -#define _NSIG_BPW 32 -#define _NSIG_WORDS (_NSIG / _NSIG_BPW) - -typedef unsigned long old_sigset_t; /* at least 32 bits */ - -typedef struct { - unsigned long sig[_NSIG_WORDS]; -} sigset_t; - -#define __ARCH_HAS_SA_RESTORER - -#include <asm/sigcontext.h> - -#endif /* _ASM_SIGNAL_H */ diff --git a/arch/mn10300/include/asm/smp.h b/arch/mn10300/include/asm/smp.h deleted file mode 100644 index 56c42417d428..000000000000 --- a/arch/mn10300/include/asm/smp.h +++ /dev/null @@ -1,109 +0,0 @@ -/* MN10300 SMP support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 13-Nov-2006 MEI Define IPI-IRQ number and add inline/macro function - * for SMP support. - * 22-Jan-2007 MEI Add the define related to SMP_BOOT_IRQ. - * 23-Feb-2007 MEI Add the define related to SMP icahce invalidate. - * 23-Jun-2008 MEI Delete INTC_IPI. - * 22-Jul-2008 MEI Add smp_nmi_call_function and related defines. - * 04-Aug-2008 MEI Delete USE_DOIRQ_CACHE_IPI. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SMP_H -#define _ASM_SMP_H - -#ifndef __ASSEMBLY__ -#include <linux/threads.h> -#include <linux/cpumask.h> -#include <linux/thread_info.h> -#endif - -#ifdef CONFIG_SMP -#include <proc/smp-regs.h> - -#define RESCHEDULE_IPI 63 -#define CALL_FUNC_SINGLE_IPI 192 -#define LOCAL_TIMER_IPI 193 -#define FLUSH_CACHE_IPI 194 -#define CALL_FUNCTION_NMI_IPI 195 -#define DEBUGGER_NMI_IPI 196 - -#define SMP_BOOT_IRQ 195 - -#define RESCHEDULE_GxICR_LV GxICR_LEVEL_6 -#define CALL_FUNCTION_GxICR_LV GxICR_LEVEL_4 -#define LOCAL_TIMER_GxICR_LV GxICR_LEVEL_4 -#define FLUSH_CACHE_GxICR_LV GxICR_LEVEL_0 -#define SMP_BOOT_GxICR_LV GxICR_LEVEL_0 -#define DEBUGGER_GxICR_LV CONFIG_DEBUGGER_IRQ_LEVEL - -#define TIME_OUT_COUNT_BOOT_IPI 100 -#define DELAY_TIME_BOOT_IPI 75000 - - -#ifndef __ASSEMBLY__ - -/** - * raw_smp_processor_id - Determine the raw CPU ID of the CPU running it - * - * What we really want to do is to use the CPUID hardware CPU register to get - * this information, but accesses to that aren't cached, and run at system bus - * speed, not CPU speed. A copy of this value is, however, stored in the - * thread_info struct, and that can be cached. - * - * An alternate way of dealing with this could be to use the EPSW.S bits to - * cache this information for systems with up to four CPUs. - */ -#define arch_smp_processor_id() (CPUID) -#if 0 -#define raw_smp_processor_id() (arch_smp_processor_id()) -#else -#define raw_smp_processor_id() (current_thread_info()->cpu) -#endif - -static inline int cpu_logical_map(int cpu) -{ - return cpu; -} - -static inline int cpu_number_map(int cpu) -{ - return cpu; -} - - -extern cpumask_t cpu_boot_map; - -extern void smp_init_cpus(void); -extern void smp_cache_interrupt(void); -extern void send_IPI_allbutself(int irq); -extern int smp_nmi_call_function(void (*func)(void *), void *info, int wait); - -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); - -#ifdef CONFIG_HOTPLUG_CPU -extern int __cpu_disable(void); -extern void __cpu_die(unsigned int cpu); -#endif /* CONFIG_HOTPLUG_CPU */ - -#endif /* __ASSEMBLY__ */ -#else /* CONFIG_SMP */ -#ifndef __ASSEMBLY__ - -static inline void smp_init_cpus(void) {} -#define raw_smp_processor_id() 0 - -#endif /* __ASSEMBLY__ */ -#endif /* CONFIG_SMP */ - -#endif /* _ASM_SMP_H */ diff --git a/arch/mn10300/include/asm/smsc911x.h b/arch/mn10300/include/asm/smsc911x.h deleted file mode 100644 index 2fcd1080322b..000000000000 --- a/arch/mn10300/include/asm/smsc911x.h +++ /dev/null @@ -1 +0,0 @@ -#include <unit/smsc911x.h> diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h deleted file mode 100644 index 879cd0df53ba..000000000000 --- a/arch/mn10300/include/asm/spinlock.h +++ /dev/null @@ -1,180 +0,0 @@ -/* MN10300 spinlock support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SPINLOCK_H -#define _ASM_SPINLOCK_H - -#include <linux/atomic.h> -#include <asm/barrier.h> -#include <asm/processor.h> -#include <asm/rwlock.h> -#include <asm/page.h> - -/* - * Simple spin lock operations. There are two variants, one clears IRQ's - * on the local processor, one does not. - * - * We make no fairness assumptions. They have a cost. - */ - -#define arch_spin_is_locked(x) (*(volatile signed char *)(&(x)->slock) != 0) - -static inline void arch_spin_unlock(arch_spinlock_t *lock) -{ - asm volatile( - " bclr 1,(0,%0) \n" - : - : "a"(&lock->slock) - : "memory", "cc"); -} - -static inline int arch_spin_trylock(arch_spinlock_t *lock) -{ - int ret; - - asm volatile( - " mov 1,%0 \n" - " bset %0,(%1) \n" - " bne 1f \n" - " clr %0 \n" - "1: xor 1,%0 \n" - : "=d"(ret) - : "a"(&lock->slock) - : "memory", "cc"); - - return ret; -} - -static inline void arch_spin_lock(arch_spinlock_t *lock) -{ - asm volatile( - "1: bset 1,(0,%0) \n" - " bne 1b \n" - : - : "a"(&lock->slock) - : "memory", "cc"); -} - -static inline void arch_spin_lock_flags(arch_spinlock_t *lock, - unsigned long flags) -{ - int temp; - - asm volatile( - "1: bset 1,(0,%2) \n" - " beq 3f \n" - " mov %1,epsw \n" - "2: mov (0,%2),%0 \n" - " or %0,%0 \n" - " bne 2b \n" - " mov %3,%0 \n" - " mov %0,epsw \n" - " nop \n" - " nop \n" - " bra 1b\n" - "3: \n" - : "=&d" (temp) - : "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL) - : "memory", "cc"); -} -#define arch_spin_lock_flags arch_spin_lock_flags - -#ifdef __KERNEL__ - -/* - * Read-write spinlocks, allowing multiple readers - * but only one writer. - * - * NOTE! it is quite common to have readers in interrupts - * but no interrupt writers. For those circumstances we - * can "mix" irq-safe locks - any writer needs to get a - * irq-safe write-lock, but readers can get non-irqsafe - * read-locks. - */ - -/* - * On mn10300, we implement read-write locks as a 32-bit counter - * with the high bit (sign) being the "contended" bit. - */ -static inline void arch_read_lock(arch_rwlock_t *rw) -{ -#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT - __build_read_lock(rw, "__read_lock_failed"); -#else - { - atomic_t *count = (atomic_t *)rw; - while (atomic_dec_return(count) < 0) - atomic_inc(count); - } -#endif -} - -static inline void arch_write_lock(arch_rwlock_t *rw) -{ -#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT - __build_write_lock(rw, "__write_lock_failed"); -#else - { - atomic_t *count = (atomic_t *)rw; - while (!atomic_sub_and_test(RW_LOCK_BIAS, count)) - atomic_add(RW_LOCK_BIAS, count); - } -#endif -} - -static inline void arch_read_unlock(arch_rwlock_t *rw) -{ -#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT - __build_read_unlock(rw); -#else - { - atomic_t *count = (atomic_t *)rw; - atomic_inc(count); - } -#endif -} - -static inline void arch_write_unlock(arch_rwlock_t *rw) -{ -#if 0 //def CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT - __build_write_unlock(rw); -#else - { - atomic_t *count = (atomic_t *)rw; - atomic_add(RW_LOCK_BIAS, count); - } -#endif -} - -static inline int arch_read_trylock(arch_rwlock_t *lock) -{ - atomic_t *count = (atomic_t *)lock; - atomic_dec(count); - if (atomic_read(count) >= 0) - return 1; - atomic_inc(count); - return 0; -} - -static inline int arch_write_trylock(arch_rwlock_t *lock) -{ - atomic_t *count = (atomic_t *)lock; - if (atomic_sub_and_test(RW_LOCK_BIAS, count)) - return 1; - atomic_add(RW_LOCK_BIAS, count); - return 0; -} - -#define _raw_spin_relax(lock) cpu_relax() -#define _raw_read_relax(lock) cpu_relax() -#define _raw_write_relax(lock) cpu_relax() - -#endif /* __KERNEL__ */ -#endif /* _ASM_SPINLOCK_H */ diff --git a/arch/mn10300/include/asm/spinlock_types.h b/arch/mn10300/include/asm/spinlock_types.h deleted file mode 100644 index 32abdc89bbc7..000000000000 --- a/arch/mn10300/include/asm/spinlock_types.h +++ /dev/null @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_SPINLOCK_TYPES_H -#define _ASM_SPINLOCK_TYPES_H - -#ifndef __LINUX_SPINLOCK_TYPES_H -# error "please don't include this file directly" -#endif - -typedef struct arch_spinlock { - unsigned int slock; -} arch_spinlock_t; - -#define __ARCH_SPIN_LOCK_UNLOCKED { 0 } - -typedef struct { - unsigned int lock; -} arch_rwlock_t; - -#define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS } - -#endif /* _ASM_SPINLOCK_TYPES_H */ diff --git a/arch/mn10300/include/asm/string.h b/arch/mn10300/include/asm/string.h deleted file mode 100644 index 47dbd4346c32..000000000000 --- a/arch/mn10300/include/asm/string.h +++ /dev/null @@ -1,32 +0,0 @@ -/* MN10300 Optimised string functions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_STRING_H -#define _ASM_STRING_H - -#define __HAVE_ARCH_MEMSET -#define __HAVE_ARCH_MEMCPY -#define __HAVE_ARCH_MEMMOVE - -extern void *memset(void *dest, int ch, size_t count); -extern void *memcpy(void *dest, const void *src, size_t count); -extern void *memmove(void *dest, const void *src, size_t count); - - -extern void __struct_cpy_bug(void); -#define struct_cpy(x, y) \ -({ \ - if (sizeof(*(x)) != sizeof(*(y))) \ - __struct_cpy_bug; \ - memcpy(x, y, sizeof(*(x))); \ -}) - -#endif /* _ASM_STRING_H */ diff --git a/arch/mn10300/include/asm/switch_to.h b/arch/mn10300/include/asm/switch_to.h deleted file mode 100644 index 67e333aa7629..000000000000 --- a/arch/mn10300/include/asm/switch_to.h +++ /dev/null @@ -1,49 +0,0 @@ -/* MN10300 task switching definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SWITCH_TO_H -#define _ASM_SWITCH_TO_H - -#include <asm/barrier.h> - -struct task_struct; -struct thread_struct; - -#if defined(CONFIG_FPU) && !defined(CONFIG_LAZY_SAVE_FPU) -struct fpu_state_struct; -extern asmlinkage void fpu_save(struct fpu_state_struct *); -#define switch_fpu(prev, next) \ - do { \ - if ((prev)->thread.fpu_flags & THREAD_HAS_FPU) { \ - (prev)->thread.fpu_flags &= ~THREAD_HAS_FPU; \ - (prev)->thread.uregs->epsw &= ~EPSW_FE; \ - fpu_save(&(prev)->thread.fpu_state); \ - } \ - } while (0) -#else -#define switch_fpu(prev, next) do {} while (0) -#endif - -/* context switching is now performed out-of-line in switch_to.S */ -extern asmlinkage -struct task_struct *__switch_to(struct thread_struct *prev, - struct thread_struct *next, - struct task_struct *prev_task); - -#define switch_to(prev, next, last) \ -do { \ - switch_fpu(prev, next); \ - current->thread.wchan = (u_long) __builtin_return_address(0); \ - (last) = __switch_to(&(prev)->thread, &(next)->thread, (prev)); \ - mb(); \ - current->thread.wchan = 0; \ -} while (0) - -#endif /* _ASM_SWITCH_TO_H */ diff --git a/arch/mn10300/include/asm/syscall.h b/arch/mn10300/include/asm/syscall.h deleted file mode 100644 index b44b0bb75a01..000000000000 --- a/arch/mn10300/include/asm/syscall.h +++ /dev/null @@ -1,117 +0,0 @@ -/* Access to user system call parameters and results - * - * See asm-generic/syscall.h for function descriptions. - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_SYSCALL_H -#define _ASM_SYSCALL_H - -#include <linux/sched.h> -#include <linux/err.h> - -extern const unsigned long sys_call_table[]; - -static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) -{ - return regs->orig_d0; -} - -static inline void syscall_rollback(struct task_struct *task, - struct pt_regs *regs) -{ - regs->d0 = regs->orig_d0; -} - -static inline long syscall_get_error(struct task_struct *task, - struct pt_regs *regs) -{ - unsigned long error = regs->d0; - return IS_ERR_VALUE(error) ? error : 0; -} - -static inline long syscall_get_return_value(struct task_struct *task, - struct pt_regs *regs) -{ - return regs->d0; -} - -static inline void syscall_set_return_value(struct task_struct *task, - struct pt_regs *regs, - int error, long val) -{ - regs->d0 = (long) error ?: val; -} - -static inline void syscall_get_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - unsigned long *args) -{ - switch (i) { - case 0: - if (!n--) break; - *args++ = regs->a0; - case 1: - if (!n--) break; - *args++ = regs->d1; - case 2: - if (!n--) break; - *args++ = regs->a3; - case 3: - if (!n--) break; - *args++ = regs->a2; - case 4: - if (!n--) break; - *args++ = regs->d3; - case 5: - if (!n--) break; - *args++ = regs->d2; - case 6: - if (!n--) break; - default: - BUG(); - break; - } -} - -static inline void syscall_set_arguments(struct task_struct *task, - struct pt_regs *regs, - unsigned int i, unsigned int n, - const unsigned long *args) -{ - switch (i) { - case 0: - if (!n--) break; - regs->a0 = *args++; - case 1: - if (!n--) break; - regs->d1 = *args++; - case 2: - if (!n--) break; - regs->a3 = *args++; - case 3: - if (!n--) break; - regs->a2 = *args++; - case 4: - if (!n--) break; - regs->d3 = *args++; - case 5: - if (!n--) break; - regs->d2 = *args++; - case 6: - if (!n--) break; - default: - BUG(); - break; - } -} - -#endif /* _ASM_SYSCALL_H */ diff --git a/arch/mn10300/include/asm/termios.h b/arch/mn10300/include/asm/termios.h deleted file mode 100644 index 4010edcaa08e..000000000000 --- a/arch/mn10300/include/asm/termios.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_TERMIOS_H -#define _ASM_TERMIOS_H - -#include <uapi/asm/termios.h> - -/* intr=^C quit=^| erase=del kill=^U - eof=^D vtime=\0 vmin=\1 sxtc=\0 - start=^Q stop=^S susp=^Z eol=\0 - reprint=^R discard=^U werase=^W lnext=^V - eol2=\0 -*/ -#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" -#endif /* _ASM_TERMIOS_H */ diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h deleted file mode 100644 index 1748a7b25bf8..000000000000 --- a/arch/mn10300/include/asm/thread_info.h +++ /dev/null @@ -1,160 +0,0 @@ -/* MN10300 Low-level thread information - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_THREAD_INFO_H -#define _ASM_THREAD_INFO_H - -#ifdef __KERNEL__ - -#include <asm/page.h> - -#ifdef CONFIG_4KSTACKS -#define THREAD_SIZE (4096) -#define THREAD_SIZE_ORDER (0) -#else -#define THREAD_SIZE (8192) -#define THREAD_SIZE_ORDER (1) -#endif - -#define STACK_WARN (THREAD_SIZE / 8) - -/* - * low level task data that entry.S needs immediate access to - * - this struct should fit entirely inside of one cache line - * - this struct shares the supervisor stack pages - * - if the contents of this structure are changed, the assembly constants - * must also be changed - */ -#ifndef __ASSEMBLY__ -typedef struct { - unsigned long seg; -} mm_segment_t; - -struct thread_info { - struct task_struct *task; /* main task structure */ - struct pt_regs *frame; /* current exception frame */ - unsigned long flags; /* low level flags */ - __u32 cpu; /* current CPU */ - __s32 preempt_count; /* 0 => preemptable, <0 => BUG */ - - mm_segment_t addr_limit; /* thread address space: - 0-0xBFFFFFFF for user-thead - 0-0xFFFFFFFF for kernel-thread - */ - - __u8 supervisor_stack[0]; -}; - -#define thread_info_to_uregs(ti) \ - ((struct pt_regs *) \ - ((unsigned long)ti + THREAD_SIZE - sizeof(struct pt_regs))) - -#else /* !__ASSEMBLY__ */ - -#ifndef __ASM_OFFSETS_H__ -#include <asm/asm-offsets.h> -#endif - -#endif - -/* - * macros/functions for gaining access to the thread information structure - */ -#ifndef __ASSEMBLY__ - -#define INIT_THREAD_INFO(tsk) \ -{ \ - .task = &tsk, \ - .flags = 0, \ - .cpu = 0, \ - .preempt_count = INIT_PREEMPT_COUNT, \ - .addr_limit = KERNEL_DS, \ -} - -#define init_uregs \ - ((struct pt_regs *) \ - ((unsigned long) init_stack + THREAD_SIZE - sizeof(struct pt_regs))) - -extern struct thread_info *__current_ti; - -/* how to get the thread information struct from C */ -static inline __attribute__((const)) -struct thread_info *current_thread_info(void) -{ - struct thread_info *ti; - asm("mov sp,%0\n" - "and %1,%0\n" - : "=d" (ti) - : "i" (~(THREAD_SIZE - 1)) - : "cc"); - return ti; -} - -static inline __attribute__((const)) -struct pt_regs *current_frame(void) -{ - return current_thread_info()->frame; -} - -/* how to get the current stack pointer from C */ -static inline unsigned long current_stack_pointer(void) -{ - unsigned long sp; - asm("mov sp,%0; ":"=r" (sp)); - return sp; -} - -#ifndef CONFIG_KGDB -void arch_release_thread_stack(unsigned long *stack); -#endif -#define get_thread_info(ti) get_task_struct((ti)->task) -#define put_thread_info(ti) put_task_struct((ti)->task) - -#else /* !__ASSEMBLY__ */ - -#ifndef __VMLINUX_LDS__ -/* how to get the thread information struct from ASM */ -.macro GET_THREAD_INFO reg - mov sp,\reg - and -THREAD_SIZE,\reg -.endm -#endif -#endif - -/* - * thread information flags - * - these are process state flags that various assembly files may need to - * access - * - pending work-to-be-done flags are in LSW - * - other flags in MSW - */ -#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ -#define TIF_SIGPENDING 2 /* signal pending */ -#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ -#define TIF_SINGLESTEP 4 /* restore singlestep on return to user mode */ -#define TIF_RESTORE_SIGMASK 5 /* restore signal mask in do_signal() */ -#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */ -#define TIF_MEMDIE 17 /* is terminating due to OOM killer */ - -#define _TIF_SYSCALL_TRACE +(1 << TIF_SYSCALL_TRACE) -#define _TIF_NOTIFY_RESUME +(1 << TIF_NOTIFY_RESUME) -#define _TIF_SIGPENDING +(1 << TIF_SIGPENDING) -#define _TIF_NEED_RESCHED +(1 << TIF_NEED_RESCHED) -#define _TIF_SINGLESTEP +(1 << TIF_SINGLESTEP) -#define _TIF_POLLING_NRFLAG +(1 << TIF_POLLING_NRFLAG) - -#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ -#define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/mn10300/include/asm/timer-regs.h b/arch/mn10300/include/asm/timer-regs.h deleted file mode 100644 index c634977caf66..000000000000 --- a/arch/mn10300/include/asm/timer-regs.h +++ /dev/null @@ -1,452 +0,0 @@ -/* AM33v2 on-board timer module registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_TIMER_REGS_H -#define _ASM_TIMER_REGS_H - -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> - -#ifdef __KERNEL__ - -/* - * Timer prescalar control - */ -#define TMPSCNT __SYSREG(0xd4003071, u8) /* timer prescaler control */ -#define TMPSCNT_ENABLE 0x80 /* timer prescaler enable */ -#define TMPSCNT_DISABLE 0x00 /* timer prescaler disable */ - -/* - * 8-bit timers - */ -#define TM0MD __SYSREG(0xd4003000, u8) /* timer 0 mode register */ -#define TM0MD_SRC 0x07 /* timer source */ -#define TM0MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM0MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM0MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM0MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM0MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM0MD_SRC_TM2IO 0x03 /* - TM2IO pin input */ -#define TM0MD_SRC_TM0IO 0x07 /* - TM0IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM0MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM0MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM1MD __SYSREG(0xd4003001, u8) /* timer 1 mode register */ -#define TM1MD_SRC 0x07 /* timer source */ -#define TM1MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM1MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM1MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM1MD_SRC_TM0CASCADE 0x03 /* - cascade with timer 0 */ -#define TM1MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM1MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM1MD_SRC_TM1IO 0x07 /* - TM1IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM1MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM1MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM2MD __SYSREG(0xd4003002, u8) /* timer 2 mode register */ -#define TM2MD_SRC 0x07 /* timer source */ -#define TM2MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM2MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM2MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM2MD_SRC_TM1CASCADE 0x03 /* - cascade with timer 1 */ -#define TM2MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM2MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#if defined(CONFIG_AM33_2) -#define TM2MD_SRC_TM2IO 0x07 /* - TM2IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM2MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM2MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM3MD __SYSREG(0xd4003003, u8) /* timer 3 mode register */ -#define TM3MD_SRC 0x07 /* timer source */ -#define TM3MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM3MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM3MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM3MD_SRC_TM2CASCADE 0x03 /* - cascade with timer 2 */ -#define TM3MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM3MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM3MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM3MD_SRC_TM3IO 0x07 /* - TM3IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM3MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM3MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM01MD __SYSREG(0xd4003000, u16) /* timer 0:1 mode register */ - -#define TM0BR __SYSREG(0xd4003010, u8) /* timer 0 base register */ -#define TM1BR __SYSREG(0xd4003011, u8) /* timer 1 base register */ -#define TM2BR __SYSREG(0xd4003012, u8) /* timer 2 base register */ -#define TM3BR __SYSREG(0xd4003013, u8) /* timer 3 base register */ -#define TM01BR __SYSREG(0xd4003010, u16) /* timer 0:1 base register */ - -#define TM0BC __SYSREGC(0xd4003020, u8) /* timer 0 binary counter */ -#define TM1BC __SYSREGC(0xd4003021, u8) /* timer 1 binary counter */ -#define TM2BC __SYSREGC(0xd4003022, u8) /* timer 2 binary counter */ -#define TM3BC __SYSREGC(0xd4003023, u8) /* timer 3 binary counter */ -#define TM01BC __SYSREGC(0xd4003020, u16) /* timer 0:1 binary counter */ - -#define TM0IRQ 2 /* timer 0 IRQ */ -#define TM1IRQ 3 /* timer 1 IRQ */ -#define TM2IRQ 4 /* timer 2 IRQ */ -#define TM3IRQ 5 /* timer 3 IRQ */ - -#define TM0ICR GxICR(TM0IRQ) /* timer 0 uflow intr ctrl reg */ -#define TM1ICR GxICR(TM1IRQ) /* timer 1 uflow intr ctrl reg */ -#define TM2ICR GxICR(TM2IRQ) /* timer 2 uflow intr ctrl reg */ -#define TM3ICR GxICR(TM3IRQ) /* timer 3 uflow intr ctrl reg */ - -/* - * 16-bit timers 4,5 & 7-15 - */ -#define TM4MD __SYSREG(0xd4003080, u8) /* timer 4 mode register */ -#define TM4MD_SRC 0x07 /* timer source */ -#define TM4MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM4MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM4MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM4MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM4MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM4MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM4MD_SRC_TM4IO 0x07 /* - TM4IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM4MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM4MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM5MD __SYSREG(0xd4003082, u8) /* timer 5 mode register */ -#define TM5MD_SRC 0x07 /* timer source */ -#define TM5MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM5MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM5MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM5MD_SRC_TM4CASCADE 0x03 /* - cascade with timer 4 */ -#define TM5MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM5MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM5MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM5MD_SRC_TM5IO 0x07 /* - TM5IO pin input */ -#else /* !CONFIG_AM33_2 */ -#define TM5MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#endif /* CONFIG_AM33_2 */ -#define TM5MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM5MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM7MD __SYSREG(0xd4003086, u8) /* timer 7 mode register */ -#define TM7MD_SRC 0x07 /* timer source */ -#define TM7MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM7MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM7MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM7MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM7MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM7MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM7MD_SRC_TM7IO 0x07 /* - TM7IO pin input */ -#endif /* CONFIG_AM33_2 */ -#define TM7MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM7MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM8MD __SYSREG(0xd4003088, u8) /* timer 8 mode register */ -#define TM8MD_SRC 0x07 /* timer source */ -#define TM8MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM8MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM8MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM8MD_SRC_TM7CASCADE 0x03 /* - cascade with timer 7 */ -#define TM8MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM8MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM8MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM8MD_SRC_TM8IO 0x07 /* - TM8IO pin input */ -#else /* !CONFIG_AM33_2 */ -#define TM8MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#endif /* CONFIG_AM33_2 */ -#define TM8MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM8MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM9MD __SYSREG(0xd400308a, u8) /* timer 9 mode register */ -#define TM9MD_SRC 0x07 /* timer source */ -#define TM9MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM9MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM9MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM9MD_SRC_TM8CASCADE 0x03 /* - cascade with timer 8 */ -#define TM9MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM9MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM9MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM9MD_SRC_TM9IO 0x07 /* - TM9IO pin input */ -#else /* !CONFIG_AM33_2 */ -#define TM9MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#endif /* CONFIG_AM33_2 */ -#define TM9MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM9MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM10MD __SYSREG(0xd400308c, u8) /* timer 10 mode register */ -#define TM10MD_SRC 0x07 /* timer source */ -#define TM10MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM10MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM10MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM10MD_SRC_TM9CASCADE 0x03 /* - cascade with timer 9 */ -#define TM10MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM10MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM10MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM10MD_SRC_TM10IO 0x07 /* - TM10IO pin input */ -#else /* !CONFIG_AM33_2 */ -#define TM10MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#endif /* CONFIG_AM33_2 */ -#define TM10MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM10MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM11MD __SYSREG(0xd400308e, u8) /* timer 11 mode register */ -#define TM11MD_SRC 0x07 /* timer source */ -#define TM11MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM11MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM11MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM11MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM11MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM11MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -#define TM11MD_SRC_TM11IO 0x07 /* - TM11IO pin input */ -#else /* !CONFIG_AM33_2 */ -#define TM11MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#endif /* CONFIG_AM33_2 */ -#define TM11MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM11MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#if defined(CONFIG_AM34_2) -#define TM12MD __SYSREG(0xd4003180, u8) /* timer 11 mode register */ -#define TM12MD_SRC 0x07 /* timer source */ -#define TM12MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM12MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM12MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM12MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM12MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM12MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#define TM12MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#define TM12MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM12MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM13MD __SYSREG(0xd4003182, u8) /* timer 11 mode register */ -#define TM13MD_SRC 0x07 /* timer source */ -#define TM13MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM13MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM13MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM13MD_SRC_TM12CASCADE 0x03 /* - cascade with timer 12 */ -#define TM13MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM13MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM13MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#define TM13MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#define TM13MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM13MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM14MD __SYSREG(0xd4003184, u8) /* timer 11 mode register */ -#define TM14MD_SRC 0x07 /* timer source */ -#define TM14MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM14MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM14MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM14MD_SRC_TM13CASCADE 0x03 /* - cascade with timer 13 */ -#define TM14MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM14MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM14MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#define TM14MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#define TM14MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM14MD_COUNT_ENABLE 0x80 /* timer count enable */ - -#define TM15MD __SYSREG(0xd4003186, u8) /* timer 11 mode register */ -#define TM15MD_SRC 0x07 /* timer source */ -#define TM15MD_SRC_IOCLK 0x00 /* - IOCLK */ -#define TM15MD_SRC_IOCLK_8 0x01 /* - 1/8 IOCLK */ -#define TM15MD_SRC_IOCLK_32 0x02 /* - 1/32 IOCLK */ -#define TM15MD_SRC_TM0UFLOW 0x04 /* - timer 0 underflow */ -#define TM15MD_SRC_TM1UFLOW 0x05 /* - timer 1 underflow */ -#define TM15MD_SRC_TM2UFLOW 0x06 /* - timer 2 underflow */ -#define TM15MD_SRC_TM7UFLOW 0x07 /* - timer 7 underflow */ -#define TM15MD_INIT_COUNTER 0x40 /* initialize TMnBC = TMnBR */ -#define TM15MD_COUNT_ENABLE 0x80 /* timer count enable */ -#endif /* CONFIG_AM34_2 */ - - -#define TM4BR __SYSREG(0xd4003090, u16) /* timer 4 base register */ -#define TM5BR __SYSREG(0xd4003092, u16) /* timer 5 base register */ -#define TM45BR __SYSREG(0xd4003090, u32) /* timer 4:5 base register */ -#define TM7BR __SYSREG(0xd4003096, u16) /* timer 7 base register */ -#define TM8BR __SYSREG(0xd4003098, u16) /* timer 8 base register */ -#define TM9BR __SYSREG(0xd400309a, u16) /* timer 9 base register */ -#define TM89BR __SYSREG(0xd4003098, u32) /* timer 8:9 base register */ -#define TM10BR __SYSREG(0xd400309c, u16) /* timer 10 base register */ -#define TM11BR __SYSREG(0xd400309e, u16) /* timer 11 base register */ -#if defined(CONFIG_AM34_2) -#define TM12BR __SYSREG(0xd4003190, u16) /* timer 12 base register */ -#define TM13BR __SYSREG(0xd4003192, u16) /* timer 13 base register */ -#define TM14BR __SYSREG(0xd4003194, u16) /* timer 14 base register */ -#define TM15BR __SYSREG(0xd4003196, u16) /* timer 15 base register */ -#endif /* CONFIG_AM34_2 */ - -#define TM4BC __SYSREG(0xd40030a0, u16) /* timer 4 binary counter */ -#define TM5BC __SYSREG(0xd40030a2, u16) /* timer 5 binary counter */ -#define TM45BC __SYSREG(0xd40030a0, u32) /* timer 4:5 binary counter */ -#define TM7BC __SYSREG(0xd40030a6, u16) /* timer 7 binary counter */ -#define TM8BC __SYSREG(0xd40030a8, u16) /* timer 8 binary counter */ -#define TM9BC __SYSREG(0xd40030aa, u16) /* timer 9 binary counter */ -#define TM89BC __SYSREG(0xd40030a8, u32) /* timer 8:9 binary counter */ -#define TM10BC __SYSREG(0xd40030ac, u16) /* timer 10 binary counter */ -#define TM11BC __SYSREG(0xd40030ae, u16) /* timer 11 binary counter */ -#if defined(CONFIG_AM34_2) -#define TM12BC __SYSREG(0xd40031a0, u16) /* timer 12 binary counter */ -#define TM13BC __SYSREG(0xd40031a2, u16) /* timer 13 binary counter */ -#define TM14BC __SYSREG(0xd40031a4, u16) /* timer 14 binary counter */ -#define TM15BC __SYSREG(0xd40031a6, u16) /* timer 15 binary counter */ -#endif /* CONFIG_AM34_2 */ - -#define TM4IRQ 6 /* timer 4 IRQ */ -#define TM5IRQ 7 /* timer 5 IRQ */ -#define TM7IRQ 11 /* timer 7 IRQ */ -#define TM8IRQ 12 /* timer 8 IRQ */ -#define TM9IRQ 13 /* timer 9 IRQ */ -#define TM10IRQ 14 /* timer 10 IRQ */ -#define TM11IRQ 15 /* timer 11 IRQ */ -#if defined(CONFIG_AM34_2) -#define TM12IRQ 64 /* timer 12 IRQ */ -#define TM13IRQ 65 /* timer 13 IRQ */ -#define TM14IRQ 66 /* timer 14 IRQ */ -#define TM15IRQ 67 /* timer 15 IRQ */ -#endif /* CONFIG_AM34_2 */ - -#define TM4ICR GxICR(TM4IRQ) /* timer 4 uflow intr ctrl reg */ -#define TM5ICR GxICR(TM5IRQ) /* timer 5 uflow intr ctrl reg */ -#define TM7ICR GxICR(TM7IRQ) /* timer 7 uflow intr ctrl reg */ -#define TM8ICR GxICR(TM8IRQ) /* timer 8 uflow intr ctrl reg */ -#define TM9ICR GxICR(TM9IRQ) /* timer 9 uflow intr ctrl reg */ -#define TM10ICR GxICR(TM10IRQ) /* timer 10 uflow intr ctrl reg */ -#define TM11ICR GxICR(TM11IRQ) /* timer 11 uflow intr ctrl reg */ -#if defined(CONFIG_AM34_2) -#define TM12ICR GxICR(TM12IRQ) /* timer 12 uflow intr ctrl reg */ -#define TM13ICR GxICR(TM13IRQ) /* timer 13 uflow intr ctrl reg */ -#define TM14ICR GxICR(TM14IRQ) /* timer 14 uflow intr ctrl reg */ -#define TM15ICR GxICR(TM15IRQ) /* timer 15 uflow intr ctrl reg */ -#endif /* CONFIG_AM34_2 */ - -/* - * 16-bit timer 6 - */ -#define TM6MD __SYSREG(0xd4003084, u16) /* timer6 mode register */ -#define TM6MD_SRC 0x0007 /* timer source */ -#define TM6MD_SRC_IOCLK 0x0000 /* - IOCLK */ -#define TM6MD_SRC_IOCLK_8 0x0001 /* - 1/8 IOCLK */ -#define TM6MD_SRC_IOCLK_32 0x0002 /* - 1/32 IOCLK */ -#define TM6MD_SRC_TM0UFLOW 0x0004 /* - timer 0 underflow */ -#define TM6MD_SRC_TM1UFLOW 0x0005 /* - timer 1 underflow */ -#define TM6MD_SRC_TM2UFLOW 0x0006 /* - timer 2 underflow */ -#if defined(CONFIG_AM33_2) -/* #define TM6MD_SRC_TM6IOB_BOTH 0x0006 */ /* - TM6IOB pin input (both edges) */ -#define TM6MD_SRC_TM6IOB_SINGLE 0x0007 /* - TM6IOB pin input (single edge) */ -#endif /* CONFIG_AM33_2 */ -#define TM6MD_ONESHOT_ENABLE 0x0040 /* oneshot count */ -#define TM6MD_CLR_ENABLE 0x0010 /* clear count enable */ -#if defined(CONFIG_AM33_2) -#define TM6MD_TRIG_ENABLE 0x0080 /* TM6IOB pin trigger enable */ -#define TM6MD_PWM 0x3800 /* PWM output mode */ -#define TM6MD_PWM_DIS 0x0000 /* - disabled */ -#define TM6MD_PWM_10BIT 0x1000 /* - 10 bits mode */ -#define TM6MD_PWM_11BIT 0x1800 /* - 11 bits mode */ -#define TM6MD_PWM_12BIT 0x3000 /* - 12 bits mode */ -#define TM6MD_PWM_14BIT 0x3800 /* - 14 bits mode */ -#endif /* CONFIG_AM33_2 */ - -#define TM6MD_INIT_COUNTER 0x4000 /* initialize TMnBC to zero */ -#define TM6MD_COUNT_ENABLE 0x8000 /* timer count enable */ - -#define TM6MDA __SYSREG(0xd40030b4, u8) /* timer6 cmp/cap A mode reg */ -#define TM6MDA_MODE_CMP_SINGLE 0x00 /* - compare, single buffer mode */ -#define TM6MDA_MODE_CMP_DOUBLE 0x40 /* - compare, double buffer mode */ -#if defined(CONFIG_AM33_2) -#define TM6MDA_OUT 0x07 /* output select */ -#define TM6MDA_OUT_SETA_RESETB 0x00 /* - set at match A, reset at match B */ -#define TM6MDA_OUT_SETA_RESETOV 0x01 /* - set at match A, reset at overflow */ -#define TM6MDA_OUT_SETA 0x02 /* - set at match A */ -#define TM6MDA_OUT_RESETA 0x03 /* - reset at match A */ -#define TM6MDA_OUT_TOGGLE 0x04 /* - toggle on match A */ -#define TM6MDA_MODE 0xc0 /* compare A register mode */ -#define TM6MDA_MODE_CAP_S_EDGE 0x80 /* - capture, single edge mode */ -#define TM6MDA_MODE_CAP_D_EDGE 0xc0 /* - capture, double edge mode */ -#define TM6MDA_EDGE 0x20 /* compare A edge select */ -#define TM6MDA_EDGE_FALLING 0x00 /* capture on falling edge */ -#define TM6MDA_EDGE_RISING 0x20 /* capture on rising edge */ -#define TM6MDA_CAPTURE_ENABLE 0x10 /* capture enable */ -#else /* !CONFIG_AM33_2 */ -#define TM6MDA_MODE 0x40 /* compare A register mode */ -#endif /* CONFIG_AM33_2 */ - -#define TM6MDB __SYSREG(0xd40030b5, u8) /* timer6 cmp/cap B mode reg */ -#define TM6MDB_MODE_CMP_SINGLE 0x00 /* - compare, single buffer mode */ -#define TM6MDB_MODE_CMP_DOUBLE 0x40 /* - compare, double buffer mode */ -#if defined(CONFIG_AM33_2) -#define TM6MDB_OUT 0x07 /* output select */ -#define TM6MDB_OUT_SETB_RESETA 0x00 /* - set at match B, reset at match A */ -#define TM6MDB_OUT_SETB_RESETOV 0x01 /* - set at match B */ -#define TM6MDB_OUT_RESETB 0x03 /* - reset at match B */ -#define TM6MDB_OUT_TOGGLE 0x04 /* - toggle on match B */ -#define TM6MDB_MODE 0xc0 /* compare B register mode */ -#define TM6MDB_MODE_CAP_S_EDGE 0x80 /* - capture, single edge mode */ -#define TM6MDB_MODE_CAP_D_EDGE 0xc0 /* - capture, double edge mode */ -#define TM6MDB_EDGE 0x20 /* compare B edge select */ -#define TM6MDB_EDGE_FALLING 0x00 /* capture on falling edge */ -#define TM6MDB_EDGE_RISING 0x20 /* capture on rising edge */ -#define TM6MDB_CAPTURE_ENABLE 0x10 /* capture enable */ -#else /* !CONFIG_AM33_2 */ -#define TM6MDB_MODE 0x40 /* compare B register mode */ -#endif /* CONFIG_AM33_2 */ - -#define TM6CA __SYSREG(0xd40030c4, u16) /* timer6 cmp/capture reg A */ -#define TM6CB __SYSREG(0xd40030d4, u16) /* timer6 cmp/capture reg B */ -#define TM6BC __SYSREG(0xd40030a4, u16) /* timer6 binary counter */ - -#define TM6IRQ 6 /* timer 6 IRQ */ -#define TM6AIRQ 9 /* timer 6A IRQ */ -#define TM6BIRQ 10 /* timer 6B IRQ */ - -#define TM6ICR GxICR(TM6IRQ) /* timer 6 uflow intr ctrl reg */ -#define TM6AICR GxICR(TM6AIRQ) /* timer 6A intr control reg */ -#define TM6BICR GxICR(TM6BIRQ) /* timer 6B intr control reg */ - -#if defined(CONFIG_AM34_2) -/* - * MTM: OS Tick-Timer - */ -#define TMTMD __SYSREG(0xd4004100, u8) /* Tick Timer mode register */ -#define TMTMD_TMTLDE 0x40 /* initialize TMTBC = TMTBR */ -#define TMTMD_TMTCNE 0x80 /* timer count enable */ - -#define TMTBR __SYSREG(0xd4004110, u32) /* Tick Timer mode reg */ -#define TMTBC __SYSREG(0xd4004120, u32) /* Tick Timer mode reg */ - -/* - * MTM: OS Timestamp-Timer - */ -#define TMSMD __SYSREG(0xd4004140, u8) /* Tick Timer mode register */ -#define TMSMD_TMSLDE 0x40 /* initialize TMSBC = TMSBR */ -#define TMSMD_TMSCNE 0x80 /* timer count enable */ - -#define TMSBR __SYSREG(0xd4004150, u32) /* Tick Timer mode register */ -#define TMSBC __SYSREG(0xd4004160, u32) /* Tick Timer mode register */ - -#define TMTIRQ 119 /* OS Tick timer IRQ */ -#define TMSIRQ 120 /* Timestamp timer IRQ */ - -#define TMTICR GxICR(TMTIRQ) /* OS Tick timer uflow intr ctrl reg */ -#define TMSICR GxICR(TMSIRQ) /* Timestamp timer uflow intr ctrl reg */ -#endif /* CONFIG_AM34_2 */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_TIMER_REGS_H */ diff --git a/arch/mn10300/include/asm/timex.h b/arch/mn10300/include/asm/timex.h deleted file mode 100644 index f8e66425cbf8..000000000000 --- a/arch/mn10300/include/asm/timex.h +++ /dev/null @@ -1,34 +0,0 @@ -/* MN10300 Architecture time management specifications - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_TIMEX_H -#define _ASM_TIMEX_H - -#include <unit/timex.h> - -#define TICK_SIZE (tick_nsec / 1000) - -#define CLOCK_TICK_RATE MN10300_JCCLK /* Underlying HZ */ - -#ifdef __KERNEL__ - -extern cycles_t cacheflush_time; - -static inline cycles_t get_cycles(void) -{ - return read_timestamp_counter(); -} - -extern int init_clockevents(void); -extern int init_clocksource(void); - -#endif /* __KERNEL__ */ - -#endif /* _ASM_TIMEX_H */ diff --git a/arch/mn10300/include/asm/tlb.h b/arch/mn10300/include/asm/tlb.h deleted file mode 100644 index 65d232b96613..000000000000 --- a/arch/mn10300/include/asm/tlb.h +++ /dev/null @@ -1,34 +0,0 @@ -/* MN10300 TLB definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_TLB_H -#define _ASM_TLB_H - -#include <asm/tlbflush.h> - -extern void check_pgt_cache(void); - -/* - * we don't need any special per-pte or per-vma handling... - */ -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) - -/* - * .. because we flush the whole mm when it fills up - */ -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - -/* for now, just use the generic stuff */ -#include <asm-generic/tlb.h> - -#endif /* _ASM_TLB_H */ diff --git a/arch/mn10300/include/asm/tlbflush.h b/arch/mn10300/include/asm/tlbflush.h deleted file mode 100644 index efddd6e1adea..000000000000 --- a/arch/mn10300/include/asm/tlbflush.h +++ /dev/null @@ -1,154 +0,0 @@ -/* MN10300 TLB flushing functions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_TLBFLUSH_H -#define _ASM_TLBFLUSH_H - -#include <linux/mm.h> -#include <asm/processor.h> - -struct tlb_state { - struct mm_struct *active_mm; - int state; -}; -DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate); - -/** - * local_flush_tlb - Flush the current MM's entries from the local CPU's TLBs - */ -static inline void local_flush_tlb(void) -{ - int w; - asm volatile( - " mov %1,%0 \n" - " or %2,%0 \n" - " mov %0,%1 \n" - : "=d"(w) - : "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV) - : "cc", "memory"); -} - -/** - * local_flush_tlb_all - Flush all entries from the local CPU's TLBs - */ -static inline void local_flush_tlb_all(void) -{ - local_flush_tlb(); -} - -/** - * local_flush_tlb_one - Flush one entry from the local CPU's TLBs - */ -static inline void local_flush_tlb_one(unsigned long addr) -{ - local_flush_tlb(); -} - -/** - * local_flush_tlb_page - Flush a page's entry from the local CPU's TLBs - * @mm: The MM to flush for - * @addr: The address of the target page in RAM (not its page struct) - */ -static inline -void local_flush_tlb_page(struct mm_struct *mm, unsigned long addr) -{ - unsigned long pteu, flags, cnx; - - addr &= PAGE_MASK; - - local_irq_save(flags); - - cnx = 1; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - cnx = mm->context.tlbpid[smp_processor_id()]; -#endif - if (cnx) { - pteu = addr; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - pteu |= cnx & xPTEU_PID; -#endif - IPTEU = pteu; - DPTEU = pteu; - if (IPTEL & xPTEL_V) - IPTEL = 0; - if (DPTEL & xPTEL_V) - DPTEL = 0; - } - local_irq_restore(flags); -} - -/* - * TLB flushing: - * - * - flush_tlb() flushes the current mm struct TLBs - * - flush_tlb_all() flushes all processes TLBs - * - flush_tlb_mm(mm) flushes the specified mm context TLB's - * - flush_tlb_page(vma, vmaddr) flushes one page - * - flush_tlb_range(mm, start, end) flushes a range of pages - * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables - */ -#ifdef CONFIG_SMP - -#include <asm/smp.h> - -extern void flush_tlb_all(void); -extern void flush_tlb_current_task(void); -extern void flush_tlb_mm(struct mm_struct *); -extern void flush_tlb_page(struct vm_area_struct *, unsigned long); - -#define flush_tlb() flush_tlb_current_task() - -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - flush_tlb_mm(vma->vm_mm); -} - -#else /* CONFIG_SMP */ - -static inline void flush_tlb_all(void) -{ - preempt_disable(); - local_flush_tlb_all(); - preempt_enable(); -} - -static inline void flush_tlb_mm(struct mm_struct *mm) -{ - preempt_disable(); - local_flush_tlb_all(); - preempt_enable(); -} - -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) -{ - preempt_disable(); - local_flush_tlb_all(); - preempt_enable(); -} - -#define flush_tlb_page(vma, addr) local_flush_tlb_page((vma)->vm_mm, addr) -#define flush_tlb() flush_tlb_all() - -#endif /* CONFIG_SMP */ - -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} - -static inline void flush_tlb_pgtables(struct mm_struct *mm, - unsigned long start, unsigned long end) -{ -} - -#endif /* _ASM_TLBFLUSH_H */ diff --git a/arch/mn10300/include/asm/topology.h b/arch/mn10300/include/asm/topology.h deleted file mode 100644 index 5428f333a02c..000000000000 --- a/arch/mn10300/include/asm/topology.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/topology.h> diff --git a/arch/mn10300/include/asm/types.h b/arch/mn10300/include/asm/types.h deleted file mode 100644 index 3d6e48311bef..000000000000 --- a/arch/mn10300/include/asm/types.h +++ /dev/null @@ -1,22 +0,0 @@ -/* MN10300 Basic type definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_TYPES_H -#define _ASM_TYPES_H - -#include <uapi/asm/types.h> - -/* - * These aren't exported outside the kernel to avoid name space clashes - */ - -#define BITS_PER_LONG 32 - -#endif /* _ASM_TYPES_H */ diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h deleted file mode 100644 index 5af468fd1359..000000000000 --- a/arch/mn10300/include/asm/uaccess.h +++ /dev/null @@ -1,297 +0,0 @@ -/* MN10300 userspace access functions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UACCESS_H -#define _ASM_UACCESS_H - -/* - * User space memory access functions - */ -#include <linux/kernel.h> -#include <asm/page.h> - -/* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with - * get_fs() == KERNEL_DS, checking is bypassed. - * - * For historical reasons, these macros are grossly misnamed. - */ -#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) - -#define KERNEL_XDS MAKE_MM_SEG(0xBFFFFFFF) -#define KERNEL_DS MAKE_MM_SEG(0x9FFFFFFF) -#define USER_DS MAKE_MM_SEG(TASK_SIZE) - -#define get_ds() (KERNEL_DS) -#define get_fs() (current_thread_info()->addr_limit) -#define set_fs(x) (current_thread_info()->addr_limit = (x)) - -#define segment_eq(a, b) ((a).seg == (b).seg) - -#define __addr_ok(addr) \ - ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) - -/* - * check that a range of addresses falls within the current address limit - */ -static inline int ___range_ok(unsigned long addr, unsigned int size) -{ - int flag = 1, tmp; - - asm(" add %3,%1 \n" /* set C-flag if addr + size > 4Gb */ - " bcs 0f \n" - " cmp %4,%1 \n" /* jump if addr+size>limit (error) */ - " bhi 0f \n" - " clr %0 \n" /* mark okay */ - "0: \n" - : "=r"(flag), "=&r"(tmp) - : "1"(addr), "ir"(size), - "r"(current_thread_info()->addr_limit.seg), "0"(flag) - : "cc" - ); - - return flag; -} - -#define __range_ok(addr, size) ___range_ok((unsigned long)(addr), (u32)(size)) - -#define access_ok(type, addr, size) (__range_ok((addr), (size)) == 0) -#define __access_ok(addr, size) (__range_ok((addr), (size)) == 0) - -#include <asm/extable.h> - -#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr))) -#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr))) - -/* - * The "__xxx" versions do not do address space checking, useful when - * doing multiple accesses to the same area (the user has to do the - * checks by hand with "access_ok()") - */ -#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr))) -#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr))) - -struct __large_struct { unsigned long buf[100]; }; -#define __m(x) (*(struct __large_struct *)(x)) - -#define __get_user_nocheck(x, ptr, size) \ -({ \ - unsigned long __gu_addr; \ - int __gu_err; \ - __gu_addr = (unsigned long) (ptr); \ - switch (size) { \ - case 1: { \ - unsigned char __gu_val; \ - __get_user_asm("bu"); \ - (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ - break; \ - } \ - case 2: { \ - unsigned short __gu_val; \ - __get_user_asm("hu"); \ - (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ - break; \ - } \ - case 4: { \ - unsigned int __gu_val; \ - __get_user_asm(""); \ - (x) = *(__force __typeof__(*(ptr))*) &__gu_val; \ - break; \ - } \ - default: \ - __get_user_unknown(); \ - break; \ - } \ - __gu_err; \ -}) - -#define __get_user_check(x, ptr, size) \ -({ \ - const __typeof__(*(ptr))* __guc_ptr = (ptr); \ - int _e; \ - if (likely(__access_ok((unsigned long) __guc_ptr, (size)))) \ - _e = __get_user_nocheck((x), __guc_ptr, (size)); \ - else { \ - _e = -EFAULT; \ - (x) = (__typeof__(x))0; \ - } \ - _e; \ -}) - -#define __get_user_asm(INSN) \ -({ \ - asm volatile( \ - "1:\n" \ - " mov"INSN" %2,%1\n" \ - " mov 0,%0\n" \ - "2:\n" \ - " .section .fixup,\"ax\"\n" \ - "3:\n\t" \ - " mov 0,%1\n" \ - " mov %3,%0\n" \ - " jmp 2b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .balign 4\n" \ - " .long 1b, 3b\n" \ - " .previous" \ - : "=&r" (__gu_err), "=&r" (__gu_val) \ - : "m" (__m(__gu_addr)), "i" (-EFAULT)); \ -}) - -extern int __get_user_unknown(void); - -#define __put_user_nocheck(x, ptr, size) \ -({ \ - union { \ - __typeof__(*(ptr)) val; \ - u32 bits[2]; \ - } __pu_val; \ - unsigned long __pu_addr; \ - int __pu_err; \ - __pu_val.val = (x); \ - __pu_addr = (unsigned long) (ptr); \ - switch (size) { \ - case 1: __put_user_asm("bu"); break; \ - case 2: __put_user_asm("hu"); break; \ - case 4: __put_user_asm("" ); break; \ - case 8: __put_user_asm8(); break; \ - default: __pu_err = __put_user_unknown(); break; \ - } \ - __pu_err; \ -}) - -#define __put_user_check(x, ptr, size) \ -({ \ - union { \ - __typeof__(*(ptr)) val; \ - u32 bits[2]; \ - } __pu_val; \ - unsigned long __pu_addr; \ - int __pu_err; \ - __pu_val.val = (x); \ - __pu_addr = (unsigned long) (ptr); \ - if (likely(__access_ok(__pu_addr, size))) { \ - switch (size) { \ - case 1: __put_user_asm("bu"); break; \ - case 2: __put_user_asm("hu"); break; \ - case 4: __put_user_asm("" ); break; \ - case 8: __put_user_asm8(); break; \ - default: __pu_err = __put_user_unknown(); break; \ - } \ - } \ - else { \ - __pu_err = -EFAULT; \ - } \ - __pu_err; \ -}) - -#define __put_user_asm(INSN) \ -({ \ - asm volatile( \ - "1:\n" \ - " mov"INSN" %1,%2\n" \ - " mov 0,%0\n" \ - "2:\n" \ - " .section .fixup,\"ax\"\n" \ - "3:\n" \ - " mov %3,%0\n" \ - " jmp 2b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .balign 4\n" \ - " .long 1b, 3b\n" \ - " .previous" \ - : "=&r" (__pu_err) \ - : "r" (__pu_val.val), "m" (__m(__pu_addr)), \ - "i" (-EFAULT) \ - ); \ -}) - -#define __put_user_asm8() \ -({ \ - asm volatile( \ - "1: mov %1,%3 \n" \ - "2: mov %2,%4 \n" \ - " mov 0,%0 \n" \ - "3: \n" \ - " .section .fixup,\"ax\" \n" \ - "4: \n" \ - " mov %5,%0 \n" \ - " jmp 3b \n" \ - " .previous \n" \ - " .section __ex_table,\"a\"\n" \ - " .balign 4 \n" \ - " .long 1b, 4b \n" \ - " .long 2b, 4b \n" \ - " .previous \n" \ - : "=&r" (__pu_err) \ - : "r" (__pu_val.bits[0]), "r" (__pu_val.bits[1]), \ - "m" (__m(__pu_addr)), "m" (__m(__pu_addr+4)), \ - "i" (-EFAULT) \ - ); \ -}) - -extern int __put_user_unknown(void); - - -/* - * Copy To/From Userspace - */ -/* Generic arbitrary sized copy. */ -#define __copy_user(to, from, size) \ -do { \ - if (size) { \ - void *__to = to; \ - const void *__from = from; \ - int w; \ - asm volatile( \ - "0: movbu (%0),%3;\n" \ - "1: movbu %3,(%1);\n" \ - " inc %0;\n" \ - " inc %1;\n" \ - " add -1,%2;\n" \ - " bne 0b;\n" \ - "2:\n" \ - " .section .fixup,\"ax\"\n" \ - "3: jmp 2b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .balign 4\n" \ - " .long 0b,3b\n" \ - " .long 1b,3b\n" \ - " .previous\n" \ - : "=a"(__from), "=a"(__to), "=r"(size), "=&r"(w)\ - : "0"(__from), "1"(__to), "2"(size) \ - : "cc", "memory"); \ - } \ -} while (0) - -static inline unsigned long -raw_copy_from_user(void *to, const void __user *from, unsigned long n) -{ - __copy_user(to, from, n); - return n; -} - -static inline unsigned long -raw_copy_to_user(void __user *to, const void *from, unsigned long n) -{ - __copy_user(to, from, n); - return n; -} - -extern long strncpy_from_user(char *dst, const char __user *src, long count); -extern long strnlen_user(const char __user *str, long n); -extern unsigned long clear_user(void __user *mem, unsigned long len); -extern unsigned long __clear_user(void __user *mem, unsigned long len); - -#endif /* _ASM_UACCESS_H */ diff --git a/arch/mn10300/include/asm/ucontext.h b/arch/mn10300/include/asm/ucontext.h deleted file mode 100644 index fcab5c1d8e18..000000000000 --- a/arch/mn10300/include/asm/ucontext.h +++ /dev/null @@ -1,22 +0,0 @@ -/* MN10300 User context - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UCONTEXT_H -#define _ASM_UCONTEXT_H - -struct ucontext { - unsigned long uc_flags; - struct ucontext *uc_link; - stack_t uc_stack; - struct sigcontext uc_mcontext; - sigset_t uc_sigmask; /* mask last for extensibility */ -}; - -#endif /* _ASM_UCONTEXT_H */ diff --git a/arch/mn10300/include/asm/unaligned.h b/arch/mn10300/include/asm/unaligned.h deleted file mode 100644 index 0df671318ae4..000000000000 --- a/arch/mn10300/include/asm/unaligned.h +++ /dev/null @@ -1,20 +0,0 @@ -/* MN10300 Unaligned memory access handling - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_MN10300_UNALIGNED_H -#define _ASM_MN10300_UNALIGNED_H - -#include <linux/unaligned/access_ok.h> -#include <linux/unaligned/generic.h> - -#define get_unaligned __get_unaligned_le -#define put_unaligned __put_unaligned_le - -#endif /* _ASM_MN10300_UNALIGNED_H */ diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h deleted file mode 100644 index 0522468f488b..000000000000 --- a/arch/mn10300/include/asm/unistd.h +++ /dev/null @@ -1,47 +0,0 @@ -/* MN10300 System call number list - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UNISTD_H -#define _ASM_UNISTD_H - -#include <uapi/asm/unistd.h> - - -#define NR_syscalls 340 - -/* - * specify the deprecated syscalls we want to support on this arch - */ -#define __ARCH_WANT_OLD_READDIR -#define __ARCH_WANT_OLD_STAT -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_SYS_ALARM -#define __ARCH_WANT_SYS_GETHOSTNAME -#define __ARCH_WANT_SYS_IPC -#define __ARCH_WANT_SYS_PAUSE -#define __ARCH_WANT_SYS_SIGNAL -#define __ARCH_WANT_SYS_TIME -#define __ARCH_WANT_SYS_UTIME -#define __ARCH_WANT_SYS_WAITPID -#define __ARCH_WANT_SYS_SOCKETCALL -#define __ARCH_WANT_SYS_FADVISE64 -#define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_LLSEEK -#define __ARCH_WANT_SYS_NICE -#define __ARCH_WANT_SYS_OLD_GETRLIMIT -#define __ARCH_WANT_SYS_OLD_SELECT -#define __ARCH_WANT_SYS_OLDUMOUNT -#define __ARCH_WANT_SYS_SIGPENDING -#define __ARCH_WANT_SYS_SIGPROCMASK -#define __ARCH_WANT_SYS_FORK -#define __ARCH_WANT_SYS_VFORK -#define __ARCH_WANT_SYS_CLONE - -#endif /* _ASM_UNISTD_H */ diff --git a/arch/mn10300/include/asm/user.h b/arch/mn10300/include/asm/user.h deleted file mode 100644 index e1193908b78c..000000000000 --- a/arch/mn10300/include/asm/user.h +++ /dev/null @@ -1,53 +0,0 @@ -/* MN10300 User process data - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_USER_H -#define _ASM_USER_H - -#include <asm/page.h> -#include <linux/ptrace.h> - -#ifndef __ASSEMBLY__ -/* - * When the kernel dumps core, it starts by dumping the user struct - this will - * be used by gdb to figure out where the data and stack segments are within - * the file, and what virtual addresses to use. - */ -struct user { - /* We start with the registers, to mimic the way that "memory" is - * returned from the ptrace(3,...) function. - */ - struct pt_regs regs; /* Where the registers are actually stored */ - - /* The rest of this junk is to help gdb figure out what goes where */ - unsigned long int u_tsize; /* Text segment size (pages). */ - unsigned long int u_dsize; /* Data segment size (pages). */ - unsigned long int u_ssize; /* Stack segment size (pages). */ - unsigned long start_code; /* Starting virtual address of text. */ - unsigned long start_stack; /* Starting virtual address of stack area. - This is actually the bottom of the stack, - the top of the stack is always found in the - esp register. */ - long int signal; /* Signal that caused the core dump. */ - int reserved; /* No longer used */ - struct user_pt_regs *u_ar0; /* Used by gdb to help find the values for */ - - /* the registers */ - unsigned long magic; /* To uniquely identify a core file */ - char u_comm[32]; /* User command that was responsible */ -}; -#endif - -#define NBPG PAGE_SIZE -#define UPAGES 1 -#define HOST_TEXT_START_ADDR +(u.start_code) -#define HOST_STACK_END_ADDR +(u.start_stack + u.u_ssize * NBPG) - -#endif /* _ASM_USER_H */ diff --git a/arch/mn10300/include/asm/vga.h b/arch/mn10300/include/asm/vga.h deleted file mode 100644 index 0163e50a3459..000000000000 --- a/arch/mn10300/include/asm/vga.h +++ /dev/null @@ -1,17 +0,0 @@ -/* MN10300 VGA register definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_VGA_H -#define _ASM_VGA_H - - - -#endif /* _ASM_VGA_H */ diff --git a/arch/mn10300/include/asm/xor.h b/arch/mn10300/include/asm/xor.h deleted file mode 100644 index c82eb12a5b18..000000000000 --- a/arch/mn10300/include/asm/xor.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/xor.h> diff --git a/arch/mn10300/include/uapi/asm/Kbuild b/arch/mn10300/include/uapi/asm/Kbuild deleted file mode 100644 index b04fd1632051..000000000000 --- a/arch/mn10300/include/uapi/asm/Kbuild +++ /dev/null @@ -1,6 +0,0 @@ -# UAPI Header export list -include include/uapi/asm-generic/Kbuild.asm - -generic-y += bpf_perf_event.h -generic-y += poll.h -generic-y += siginfo.h diff --git a/arch/mn10300/include/uapi/asm/auxvec.h b/arch/mn10300/include/uapi/asm/auxvec.h deleted file mode 100644 index 4fdb60b2ae39..000000000000 --- a/arch/mn10300/include/uapi/asm/auxvec.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef _ASM_AUXVEC_H -#define _ASM_AUXVEC_H - -#endif diff --git a/arch/mn10300/include/uapi/asm/bitsperlong.h b/arch/mn10300/include/uapi/asm/bitsperlong.h deleted file mode 100644 index 76da34b10f59..000000000000 --- a/arch/mn10300/include/uapi/asm/bitsperlong.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/bitsperlong.h> diff --git a/arch/mn10300/include/uapi/asm/byteorder.h b/arch/mn10300/include/uapi/asm/byteorder.h deleted file mode 100644 index 3467df91216c..000000000000 --- a/arch/mn10300/include/uapi/asm/byteorder.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_BYTEORDER_H -#define _ASM_BYTEORDER_H - -#include <linux/byteorder/little_endian.h> - -#endif /* _ASM_BYTEORDER_H */ diff --git a/arch/mn10300/include/uapi/asm/errno.h b/arch/mn10300/include/uapi/asm/errno.h deleted file mode 100644 index 9addba592646..000000000000 --- a/arch/mn10300/include/uapi/asm/errno.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/errno.h> diff --git a/arch/mn10300/include/uapi/asm/fcntl.h b/arch/mn10300/include/uapi/asm/fcntl.h deleted file mode 100644 index a77648c505d1..000000000000 --- a/arch/mn10300/include/uapi/asm/fcntl.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/fcntl.h> diff --git a/arch/mn10300/include/uapi/asm/ioctl.h b/arch/mn10300/include/uapi/asm/ioctl.h deleted file mode 100644 index b809c4566e5f..000000000000 --- a/arch/mn10300/include/uapi/asm/ioctl.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/ioctl.h> diff --git a/arch/mn10300/include/uapi/asm/ioctls.h b/arch/mn10300/include/uapi/asm/ioctls.h deleted file mode 100644 index 0955d4f854e9..000000000000 --- a/arch/mn10300/include/uapi/asm/ioctls.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_IOCTLS_H -#define _ASM_IOCTLS_H - -#include <asm-generic/ioctls.h> - -#endif /* _ASM_IOCTLS_H */ diff --git a/arch/mn10300/include/uapi/asm/ipcbuf.h b/arch/mn10300/include/uapi/asm/ipcbuf.h deleted file mode 100644 index 90d6445a14df..000000000000 --- a/arch/mn10300/include/uapi/asm/ipcbuf.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/ipcbuf.h> diff --git a/arch/mn10300/include/uapi/asm/kvm_para.h b/arch/mn10300/include/uapi/asm/kvm_para.h deleted file mode 100644 index baacc4996d18..000000000000 --- a/arch/mn10300/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/kvm_para.h> diff --git a/arch/mn10300/include/uapi/asm/mman.h b/arch/mn10300/include/uapi/asm/mman.h deleted file mode 100644 index eb7f4798c036..000000000000 --- a/arch/mn10300/include/uapi/asm/mman.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/mman.h> - -#define MIN_MAP_ADDR PAGE_SIZE /* minimum fixed mmap address */ - -#define arch_mmap_check(addr, len, flags) \ - (((flags) & MAP_FIXED && (addr) < MIN_MAP_ADDR) ? -EINVAL : 0) diff --git a/arch/mn10300/include/uapi/asm/msgbuf.h b/arch/mn10300/include/uapi/asm/msgbuf.h deleted file mode 100644 index 5982def83355..000000000000 --- a/arch/mn10300/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,32 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_MSGBUF_H -#define _ASM_MSGBUF_H - -/* - * The msqid64_ds structure for MN10300 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - unsigned long __unused1; - __kernel_time_t msg_rtime; /* last msgrcv time */ - unsigned long __unused2; - __kernel_time_t msg_ctime; /* last change time */ - unsigned long __unused3; - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused4; - unsigned long __unused5; -}; - -#endif /* _ASM_MSGBUF_H */ diff --git a/arch/mn10300/include/uapi/asm/param.h b/arch/mn10300/include/uapi/asm/param.h deleted file mode 100644 index e0020d7742bd..000000000000 --- a/arch/mn10300/include/uapi/asm/param.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Kernel parameters - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PARAM_H -#define _ASM_PARAM_H - -#include <asm-generic/param.h> - -#define COMMAND_LINE_SIZE 256 - -#endif /* _ASM_PARAM_H */ diff --git a/arch/mn10300/include/uapi/asm/posix_types.h b/arch/mn10300/include/uapi/asm/posix_types.h deleted file mode 100644 index 6b4cfc7136e9..000000000000 --- a/arch/mn10300/include/uapi/asm/posix_types.h +++ /dev/null @@ -1,46 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 POSIX types - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_POSIX_TYPES_H -#define _ASM_POSIX_TYPES_H - -/* - * This file is generally used by user-level software, so you need to - * be a little careful about namespace pollution etc. Also, we cannot - * assume GCC is being used. - */ - -typedef unsigned short __kernel_mode_t; -#define __kernel_mode_t __kernel_mode_t - -typedef unsigned short __kernel_ipc_pid_t; -#define __kernel_ipc_pid_t __kernel_ipc_pid_t - -typedef unsigned short __kernel_uid_t; -typedef unsigned short __kernel_gid_t; -#define __kernel_uid_t __kernel_uid_t - -#if __GNUC__ == 4 -typedef unsigned int __kernel_size_t; -typedef signed int __kernel_ssize_t; -#else -typedef unsigned long __kernel_size_t; -typedef signed long __kernel_ssize_t; -#endif -typedef int __kernel_ptrdiff_t; -#define __kernel_size_t __kernel_size_t - -typedef unsigned short __kernel_old_dev_t; -#define __kernel_old_dev_t __kernel_old_dev_t - -#include <asm-generic/posix_types.h> - -#endif /* _ASM_POSIX_TYPES_H */ diff --git a/arch/mn10300/include/uapi/asm/ptrace.h b/arch/mn10300/include/uapi/asm/ptrace.h deleted file mode 100644 index f485c481a266..000000000000 --- a/arch/mn10300/include/uapi/asm/ptrace.h +++ /dev/null @@ -1,85 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Exception frame layout and ptrace constants - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _UAPI_ASM_PTRACE_H -#define _UAPI_ASM_PTRACE_H - -#define PT_A3 0 -#define PT_A2 1 -#define PT_D3 2 -#define PT_D2 3 -#define PT_MCVF 4 -#define PT_MCRL 5 -#define PT_MCRH 6 -#define PT_MDRQ 7 -#define PT_E1 8 -#define PT_E0 9 -#define PT_E7 10 -#define PT_E6 11 -#define PT_E5 12 -#define PT_E4 13 -#define PT_E3 14 -#define PT_E2 15 -#define PT_SP 16 -#define PT_LAR 17 -#define PT_LIR 18 -#define PT_MDR 19 -#define PT_A1 20 -#define PT_A0 21 -#define PT_D1 22 -#define PT_D0 23 -#define PT_ORIG_D0 24 -#define PT_EPSW 25 -#define PT_PC 26 -#define NR_PTREGS 27 - -/* - * This defines the way registers are stored in the event of an exception - * - the strange order is due to the MOVM instruction - */ -struct pt_regs { - unsigned long a3; /* syscall arg 3 */ - unsigned long a2; /* syscall arg 4 */ - unsigned long d3; /* syscall arg 5 */ - unsigned long d2; /* syscall arg 6 */ - unsigned long mcvf; - unsigned long mcrl; - unsigned long mcrh; - unsigned long mdrq; - unsigned long e1; - unsigned long e0; - unsigned long e7; - unsigned long e6; - unsigned long e5; - unsigned long e4; - unsigned long e3; - unsigned long e2; - unsigned long sp; - unsigned long lar; - unsigned long lir; - unsigned long mdr; - unsigned long a1; - unsigned long a0; /* syscall arg 1 */ - unsigned long d1; /* syscall arg 2 */ - unsigned long d0; /* syscall ret */ - struct pt_regs *next; /* next frame pointer */ - unsigned long orig_d0; /* syscall number */ - unsigned long epsw; - unsigned long pc; -}; - -/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 - -#endif /* _UAPI_ASM_PTRACE_H */ diff --git a/arch/mn10300/include/uapi/asm/resource.h b/arch/mn10300/include/uapi/asm/resource.h deleted file mode 100644 index 49a81fbab43d..000000000000 --- a/arch/mn10300/include/uapi/asm/resource.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/resource.h> diff --git a/arch/mn10300/include/uapi/asm/sembuf.h b/arch/mn10300/include/uapi/asm/sembuf.h deleted file mode 100644 index ef44c42c7e0f..000000000000 --- a/arch/mn10300/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,26 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_SEMBUF_H -#define _ASM_SEMBUF_H - -/* - * The semid64_ds structure for MN10300 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - unsigned long __unused1; - __kernel_time_t sem_ctime; /* last change time */ - unsigned long __unused2; - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _ASM_SEMBUF_H */ diff --git a/arch/mn10300/include/uapi/asm/setup.h b/arch/mn10300/include/uapi/asm/setup.h deleted file mode 100644 index 043dd4b92026..000000000000 --- a/arch/mn10300/include/uapi/asm/setup.h +++ /dev/null @@ -1,5 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -/* - * There isn't anything here anymore, but the file must not be empty or patch - * will delete it. - */ diff --git a/arch/mn10300/include/uapi/asm/shmbuf.h b/arch/mn10300/include/uapi/asm/shmbuf.h deleted file mode 100644 index 6e81f74f51c6..000000000000 --- a/arch/mn10300/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_SHMBUF_H -#define _ASM_SHMBUF_H - -/* - * The shmid64_ds structure for MN10300 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - unsigned long __unused1; - __kernel_time_t shm_dtime; /* last detach time */ - unsigned long __unused2; - __kernel_time_t shm_ctime; /* last change time */ - unsigned long __unused3; - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _ASM_SHMBUF_H */ diff --git a/arch/mn10300/include/uapi/asm/sigcontext.h b/arch/mn10300/include/uapi/asm/sigcontext.h deleted file mode 100644 index 1c361fabb977..000000000000 --- a/arch/mn10300/include/uapi/asm/sigcontext.h +++ /dev/null @@ -1,53 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Userspace signal context - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SIGCONTEXT_H -#define _ASM_SIGCONTEXT_H - -struct fpucontext { - /* Regular FPU environment */ - unsigned long fs[32]; /* fpu registers */ - unsigned long fpcr; /* fpu control register */ -}; - -struct sigcontext { - unsigned long d0; - unsigned long d1; - unsigned long d2; - unsigned long d3; - unsigned long a0; - unsigned long a1; - unsigned long a2; - unsigned long a3; - unsigned long e0; - unsigned long e1; - unsigned long e2; - unsigned long e3; - unsigned long e4; - unsigned long e5; - unsigned long e6; - unsigned long e7; - unsigned long lar; - unsigned long lir; - unsigned long mdr; - unsigned long mcvf; - unsigned long mcrl; - unsigned long mcrh; - unsigned long mdrq; - unsigned long sp; - unsigned long epsw; - unsigned long pc; - struct fpucontext *fpucontext; - unsigned long oldmask; -}; - - -#endif /* _ASM_SIGCONTEXT_H */ diff --git a/arch/mn10300/include/uapi/asm/signal.h b/arch/mn10300/include/uapi/asm/signal.h deleted file mode 100644 index 566cb199d5ac..000000000000 --- a/arch/mn10300/include/uapi/asm/signal.h +++ /dev/null @@ -1,126 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Signal definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _UAPI_ASM_SIGNAL_H -#define _UAPI_ASM_SIGNAL_H - -#include <linux/types.h> - -/* Avoid too many header ordering problems. */ -struct siginfo; - -#ifndef __KERNEL__ -/* Here we must cater to libcs that poke about in kernel headers. */ - -#define NSIG 32 -typedef unsigned long sigset_t; - -#endif /* __KERNEL__ */ - -#define SIGHUP 1 -#define SIGINT 2 -#define SIGQUIT 3 -#define SIGILL 4 -#define SIGTRAP 5 -#define SIGABRT 6 -#define SIGIOT 6 -#define SIGBUS 7 -#define SIGFPE 8 -#define SIGKILL 9 -#define SIGUSR1 10 -#define SIGSEGV 11 -#define SIGUSR2 12 -#define SIGPIPE 13 -#define SIGALRM 14 -#define SIGTERM 15 -#define SIGSTKFLT 16 -#define SIGCHLD 17 -#define SIGCONT 18 -#define SIGSTOP 19 -#define SIGTSTP 20 -#define SIGTTIN 21 -#define SIGTTOU 22 -#define SIGURG 23 -#define SIGXCPU 24 -#define SIGXFSZ 25 -#define SIGVTALRM 26 -#define SIGPROF 27 -#define SIGWINCH 28 -#define SIGIO 29 -#define SIGPOLL SIGIO -/* -#define SIGLOST 29 -*/ -#define SIGPWR 30 -#define SIGSYS 31 -#define SIGUNUSED 31 - -/* These should not be considered constants from userland. */ -#define SIGRTMIN 32 -#define SIGRTMAX _NSIG - -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001U -#define SA_NOCLDWAIT 0x00000002U -#define SA_SIGINFO 0x00000004U -#define SA_ONSTACK 0x08000000U -#define SA_RESTART 0x10000000U -#define SA_NODEFER 0x40000000U -#define SA_RESETHAND 0x80000000U - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -#define SA_RESTORER 0x04000000 - -#define MINSIGSTKSZ 2048 -#define SIGSTKSZ 8192 - -#include <asm-generic/signal-defs.h> - -#ifndef __KERNEL__ -/* Here we must cater to libcs that poke about in kernel headers. */ - -struct sigaction { - union { - __sighandler_t _sa_handler; - void (*_sa_sigaction)(int, struct siginfo *, void *); - } _u; - sigset_t sa_mask; - unsigned long sa_flags; - void (*sa_restorer)(void); -}; - -#define sa_handler _u._sa_handler -#define sa_sigaction _u._sa_sigaction - -#endif /* __KERNEL__ */ - -typedef struct sigaltstack { - void __user *ss_sp; - int ss_flags; - size_t ss_size; -} stack_t; - - -#endif /* _UAPI_ASM_SIGNAL_H */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h deleted file mode 100644 index b35eee132142..000000000000 --- a/arch/mn10300/include/uapi/asm/socket.h +++ /dev/null @@ -1,108 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - -#include <asm/sockios.h> - -/* For setsockopt(2) */ -#define SOL_SOCKET 1 - -#define SO_DEBUG 1 -#define SO_REUSEADDR 2 -#define SO_TYPE 3 -#define SO_ERROR 4 -#define SO_DONTROUTE 5 -#define SO_BROADCAST 6 -#define SO_SNDBUF 7 -#define SO_RCVBUF 8 -#define SO_SNDBUFFORCE 32 -#define SO_RCVBUFFORCE 33 -#define SO_KEEPALIVE 9 -#define SO_OOBINLINE 10 -#define SO_NO_CHECK 11 -#define SO_PRIORITY 12 -#define SO_LINGER 13 -#define SO_BSDCOMPAT 14 -#define SO_REUSEPORT 15 -#define SO_PASSCRED 16 -#define SO_PEERCRED 17 -#define SO_RCVLOWAT 18 -#define SO_SNDLOWAT 19 -#define SO_RCVTIMEO 20 -#define SO_SNDTIMEO 21 - -/* Security levels - as per NRL IPv6 - don't actually do anything */ -#define SO_SECURITY_AUTHENTICATION 22 -#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 -#define SO_SECURITY_ENCRYPTION_NETWORK 24 - -#define SO_BINDTODEVICE 25 - -/* Socket filtering */ -#define SO_ATTACH_FILTER 26 -#define SO_DETACH_FILTER 27 -#define SO_GET_FILTER SO_ATTACH_FILTER - -#define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP - -#define SO_ACCEPTCONN 30 - -#define SO_PEERSEC 31 -#define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS - -#define SO_MARK 36 - -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - -#define SO_PROTOCOL 38 -#define SO_DOMAIN 39 - -#define SO_RXQ_OVFL 40 - -#define SO_WIFI_STATUS 41 -#define SCM_WIFI_STATUS SO_WIFI_STATUS -#define SO_PEEK_OFF 42 - -/* Instruct lower device to use last 4-bytes of skb data as FCS */ -#define SO_NOFCS 43 - -#define SO_LOCK_FILTER 44 - -#define SO_SELECT_ERR_QUEUE 45 - -#define SO_BUSY_POLL 46 - -#define SO_MAX_PACING_RATE 47 - -#define SO_BPF_EXTENSIONS 48 - -#define SO_INCOMING_CPU 49 - -#define SO_ATTACH_BPF 50 -#define SO_DETACH_BPF SO_DETACH_FILTER - -#define SO_ATTACH_REUSEPORT_CBPF 51 -#define SO_ATTACH_REUSEPORT_EBPF 52 - -#define SO_CNX_ADVICE 53 - -#define SCM_TIMESTAMPING_OPT_STATS 54 - -#define SO_MEMINFO 55 - -#define SO_INCOMING_NAPI_ID 56 - -#define SO_COOKIE 57 - -#define SCM_TIMESTAMPING_PKTINFO 58 - -#define SO_PEERGROUPS 59 - -#define SO_ZEROCOPY 60 - -#endif /* _ASM_SOCKET_H */ diff --git a/arch/mn10300/include/uapi/asm/sockios.h b/arch/mn10300/include/uapi/asm/sockios.h deleted file mode 100644 index 5706baa3cd0d..000000000000 --- a/arch/mn10300/include/uapi/asm/sockios.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_SOCKIOS_H -#define _ASM_SOCKIOS_H - -/* Socket-level I/O control calls. */ -#define FIOSETOWN 0x8901 -#define SIOCSPGRP 0x8902 -#define FIOGETOWN 0x8903 -#define SIOCGPGRP 0x8904 -#define SIOCATMARK 0x8905 -#define SIOCGSTAMP 0x8906 /* Get stamp */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ - -#endif /* _ASM_SOCKIOS_H */ diff --git a/arch/mn10300/include/uapi/asm/stat.h b/arch/mn10300/include/uapi/asm/stat.h deleted file mode 100644 index 769f5f8829d4..000000000000 --- a/arch/mn10300/include/uapi/asm/stat.h +++ /dev/null @@ -1,79 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_STAT_H -#define _ASM_STAT_H - -struct __old_kernel_stat { - unsigned short st_dev; - unsigned short st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned short st_rdev; - unsigned long st_size; - unsigned long st_atime; - unsigned long st_mtime; - unsigned long st_ctime; -}; - -struct stat { - unsigned long st_dev; - unsigned long st_ino; - unsigned short st_mode; - unsigned short st_nlink; - unsigned short st_uid; - unsigned short st_gid; - unsigned long st_rdev; - unsigned long st_size; - unsigned long st_blksize; - unsigned long st_blocks; - unsigned long st_atime; - unsigned long st_atime_nsec; - unsigned long st_mtime; - unsigned long st_mtime_nsec; - unsigned long st_ctime; - unsigned long st_ctime_nsec; - unsigned long __unused4; - unsigned long __unused5; -}; - -/* This matches struct stat64 in glibc2.1, hence the absolutely - * insane amounts of padding around dev_t's. - */ -struct stat64 { - unsigned long long st_dev; - unsigned char __pad0[4]; - -#define STAT64_HAS_BROKEN_ST_INO 1 - unsigned long __st_ino; - - unsigned int st_mode; - unsigned int st_nlink; - - unsigned long st_uid; - unsigned long st_gid; - - unsigned long long st_rdev; - unsigned char __pad3[4]; - - long long st_size; - unsigned long st_blksize; - - unsigned long st_blocks; /* Number 512-byte blocks allocated. */ - unsigned long __pad4; /* future possible st_blocks high bits */ - - unsigned long st_atime; - unsigned long st_atime_nsec; - - unsigned long st_mtime; - unsigned int st_mtime_nsec; - - unsigned long st_ctime; - unsigned long st_ctime_nsec; - - unsigned long long st_ino; -}; - -#define STAT_HAVE_NSEC 1 - -#endif /* _ASM_STAT_H */ diff --git a/arch/mn10300/include/uapi/asm/statfs.h b/arch/mn10300/include/uapi/asm/statfs.h deleted file mode 100644 index 0b91fe198c20..000000000000 --- a/arch/mn10300/include/uapi/asm/statfs.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/statfs.h> diff --git a/arch/mn10300/include/uapi/asm/swab.h b/arch/mn10300/include/uapi/asm/swab.h deleted file mode 100644 index d2284dd27ad4..000000000000 --- a/arch/mn10300/include/uapi/asm/swab.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Byte-order primitive construction - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_SWAB_H -#define _ASM_SWAB_H - -#include <linux/types.h> - -#ifdef __GNUC__ - -static inline __attribute__((const)) -__u32 __arch_swab32(__u32 x) -{ - __u32 ret; - asm("swap %1,%0" : "=r" (ret) : "r" (x)); - return ret; -} -#define __arch_swab32 __arch_swab32 - -static inline __attribute__((const)) -__u16 __arch_swab16(__u16 x) -{ - __u16 ret; - asm("swaph %1,%0" : "=r" (ret) : "r" (x)); - return ret; -} -#define __arch_swab32 __arch_swab32 - -#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) -# define __SWAB_64_THRU_32__ -#endif - -#endif /* __GNUC__ */ - -#endif /* _ASM_SWAB_H */ diff --git a/arch/mn10300/include/uapi/asm/termbits.h b/arch/mn10300/include/uapi/asm/termbits.h deleted file mode 100644 index fca82ea2ca2c..000000000000 --- a/arch/mn10300/include/uapi/asm/termbits.h +++ /dev/null @@ -1,202 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_TERMBITS_H -#define _ASM_TERMBITS_H - -#include <linux/posix_types.h> - -typedef unsigned char cc_t; -typedef unsigned int speed_t; -typedef unsigned int tcflag_t; - -#define NCCS 19 -struct termios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ -}; - -struct termios2 { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -struct ktermios { - tcflag_t c_iflag; /* input mode flags */ - tcflag_t c_oflag; /* output mode flags */ - tcflag_t c_cflag; /* control mode flags */ - tcflag_t c_lflag; /* local mode flags */ - cc_t c_line; /* line discipline */ - cc_t c_cc[NCCS]; /* control characters */ - speed_t c_ispeed; /* input speed */ - speed_t c_ospeed; /* output speed */ -}; - -/* c_cc characters */ -#define VINTR 0 -#define VQUIT 1 -#define VERASE 2 -#define VKILL 3 -#define VEOF 4 -#define VTIME 5 -#define VMIN 6 -#define VSWTC 7 -#define VSTART 8 -#define VSTOP 9 -#define VSUSP 10 -#define VEOL 11 -#define VREPRINT 12 -#define VDISCARD 13 -#define VWERASE 14 -#define VLNEXT 15 -#define VEOL2 16 - - -/* c_iflag bits */ -#define IGNBRK 0000001 -#define BRKINT 0000002 -#define IGNPAR 0000004 -#define PARMRK 0000010 -#define INPCK 0000020 -#define ISTRIP 0000040 -#define INLCR 0000100 -#define IGNCR 0000200 -#define ICRNL 0000400 -#define IUCLC 0001000 -#define IXON 0002000 -#define IXANY 0004000 -#define IXOFF 0010000 -#define IMAXBEL 0020000 -#define IUTF8 0040000 - -/* c_oflag bits */ -#define OPOST 0000001 -#define OLCUC 0000002 -#define ONLCR 0000004 -#define OCRNL 0000010 -#define ONOCR 0000020 -#define ONLRET 0000040 -#define OFILL 0000100 -#define OFDEL 0000200 -#define NLDLY 0000400 -#define NL0 0000000 -#define NL1 0000400 -#define CRDLY 0003000 -#define CR0 0000000 -#define CR1 0001000 -#define CR2 0002000 -#define CR3 0003000 -#define TABDLY 0014000 -#define TAB0 0000000 -#define TAB1 0004000 -#define TAB2 0010000 -#define TAB3 0014000 -#define XTABS 0014000 -#define BSDLY 0020000 -#define BS0 0000000 -#define BS1 0020000 -#define VTDLY 0040000 -#define VT0 0000000 -#define VT1 0040000 -#define FFDLY 0100000 -#define FF0 0000000 -#define FF1 0100000 - -/* c_cflag bit meaning */ -#define CBAUD 0010017 -#define B0 0000000 /* hang up */ -#define B50 0000001 -#define B75 0000002 -#define B110 0000003 -#define B134 0000004 -#define B150 0000005 -#define B200 0000006 -#define B300 0000007 -#define B600 0000010 -#define B1200 0000011 -#define B1800 0000012 -#define B2400 0000013 -#define B4800 0000014 -#define B9600 0000015 -#define B19200 0000016 -#define B38400 0000017 -#define EXTA B19200 -#define EXTB B38400 -#define CSIZE 0000060 -#define CS5 0000000 -#define CS6 0000020 -#define CS7 0000040 -#define CS8 0000060 -#define CSTOPB 0000100 -#define CREAD 0000200 -#define PARENB 0000400 -#define PARODD 0001000 -#define HUPCL 0002000 -#define CLOCAL 0004000 -#define CBAUDEX 0010000 -#define BOTHER 0010000 -#define B57600 0010001 -#define B115200 0010002 -#define B230400 0010003 -#define B460800 0010004 -#define B500000 0010005 -#define B576000 0010006 -#define B921600 0010007 -#define B1000000 0010010 -#define B1152000 0010011 -#define B1500000 0010012 -#define B2000000 0010013 -#define B2500000 0010014 -#define B3000000 0010015 -#define B3500000 0010016 -#define B4000000 0010017 -#define CIBAUD 002003600000 /* input baud rate (not used) */ -#define CTVB 004000000000 /* VisioBraille Terminal flow control */ -#define CMSPAR 010000000000 /* mark or space (stick) parity */ -#define CRTSCTS 020000000000 /* flow control */ - -#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */ - -/* c_lflag bits */ -#define ISIG 0000001 -#define ICANON 0000002 -#define XCASE 0000004 -#define ECHO 0000010 -#define ECHOE 0000020 -#define ECHOK 0000040 -#define ECHONL 0000100 -#define NOFLSH 0000200 -#define TOSTOP 0000400 -#define ECHOCTL 0001000 -#define ECHOPRT 0002000 -#define ECHOKE 0004000 -#define FLUSHO 0010000 -#define PENDIN 0040000 -#define IEXTEN 0100000 -#define EXTPROC 0200000 - -/* tcflow() and TCXONC use these */ -#define TCOOFF 0 -#define TCOON 1 -#define TCIOFF 2 -#define TCION 3 - -/* tcflush() and TCFLSH use these */ -#define TCIFLUSH 0 -#define TCOFLUSH 1 -#define TCIOFLUSH 2 - -/* tcsetattr uses these */ -#define TCSANOW 0 -#define TCSADRAIN 1 -#define TCSAFLUSH 2 - -#endif /* _ASM_TERMBITS_H */ diff --git a/arch/mn10300/include/uapi/asm/termios.h b/arch/mn10300/include/uapi/asm/termios.h deleted file mode 100644 index 25981aadb8cd..000000000000 --- a/arch/mn10300/include/uapi/asm/termios.h +++ /dev/null @@ -1,84 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _UAPI_ASM_TERMIOS_H -#define _UAPI_ASM_TERMIOS_H - -#include <asm/termbits.h> -#include <asm/ioctls.h> - -struct winsize { - unsigned short ws_row; - unsigned short ws_col; - unsigned short ws_xpixel; - unsigned short ws_ypixel; -}; - -#define NCC 8 -struct termio { - unsigned short c_iflag; /* input mode flags */ - unsigned short c_oflag; /* output mode flags */ - unsigned short c_cflag; /* control mode flags */ - unsigned short c_lflag; /* local mode flags */ - unsigned char c_line; /* line discipline */ - unsigned char c_cc[NCC]; /* control characters */ -}; - - -/* modem lines */ -#define TIOCM_LE 0x001 -#define TIOCM_DTR 0x002 -#define TIOCM_RTS 0x004 -#define TIOCM_ST 0x008 -#define TIOCM_SR 0x010 -#define TIOCM_CTS 0x020 -#define TIOCM_CAR 0x040 -#define TIOCM_RNG 0x080 -#define TIOCM_DSR 0x100 -#define TIOCM_CD TIOCM_CAR -#define TIOCM_RI TIOCM_RNG -#define TIOCM_OUT1 0x2000 -#define TIOCM_OUT2 0x4000 -#define TIOCM_LOOP 0x8000 - -#define TIOCM_MODEM_BITS TIOCM_OUT2 /* IRDA support */ - -/* - * Translate a "termio" structure into a "termios". Ugh. - */ -#define SET_LOW_TERMIOS_BITS(termios, termio, x) { \ - unsigned short __tmp; \ - get_user(__tmp, &(termio)->x); \ - *(unsigned short *) &(termios)->x = __tmp; \ -} - -#define user_termio_to_kernel_termios(termios, termio) \ -({ \ - SET_LOW_TERMIOS_BITS(termios, termio, c_iflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_oflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_cflag); \ - SET_LOW_TERMIOS_BITS(termios, termio, c_lflag); \ - copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ -}) - -/* - * Translate a "termios" structure into a "termio". Ugh. - */ -#define kernel_termios_to_user_termio(termio, termios) \ -({ \ - put_user((termios)->c_iflag, &(termio)->c_iflag); \ - put_user((termios)->c_oflag, &(termio)->c_oflag); \ - put_user((termios)->c_cflag, &(termio)->c_cflag); \ - put_user((termios)->c_lflag, &(termio)->c_lflag); \ - put_user((termios)->c_line, &(termio)->c_line); \ - copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ -}) - -#define user_termios_to_kernel_termios(k, u) \ - copy_from_user(k, u, sizeof(struct termios2)) -#define kernel_termios_to_user_termios(u, k) \ - copy_to_user(u, k, sizeof(struct termios2)) -#define user_termios_to_kernel_termios_1(k, u) \ - copy_from_user(k, u, sizeof(struct termios)) -#define kernel_termios_to_user_termios_1(u, k) \ - copy_to_user(u, k, sizeof(struct termios)) - -#endif /* _UAPI_ASM_TERMIOS_H */ diff --git a/arch/mn10300/include/uapi/asm/types.h b/arch/mn10300/include/uapi/asm/types.h deleted file mode 100644 index 7d2a697e2937..000000000000 --- a/arch/mn10300/include/uapi/asm/types.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 Basic type definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm-generic/int-ll64.h> diff --git a/arch/mn10300/include/uapi/asm/unistd.h b/arch/mn10300/include/uapi/asm/unistd.h deleted file mode 100644 index c0c96b650692..000000000000 --- a/arch/mn10300/include/uapi/asm/unistd.h +++ /dev/null @@ -1,355 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ -/* MN10300 System call number list - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _UAPI_ASM_UNISTD_H -#define _UAPI_ASM_UNISTD_H - -#define __NR_restart_syscall 0 -#define __NR_exit 1 -#define __NR_fork 2 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_open 5 -#define __NR_close 6 -#define __NR_waitpid 7 -#define __NR_creat 8 -#define __NR_link 9 -#define __NR_unlink 10 -#define __NR_execve 11 -#define __NR_chdir 12 -#define __NR_time 13 -#define __NR_mknod 14 -#define __NR_chmod 15 -#define __NR_lchown 16 -#define __NR_break 17 -#define __NR_oldstat 18 -#define __NR_lseek 19 -#define __NR_getpid 20 -#define __NR_mount 21 -#define __NR_umount 22 -#define __NR_setuid 23 -#define __NR_getuid 24 -#define __NR_stime 25 -#define __NR_ptrace 26 -#define __NR_alarm 27 -#define __NR_oldfstat 28 -#define __NR_pause 29 -#define __NR_utime 30 -#define __NR_stty 31 -#define __NR_gtty 32 -#define __NR_access 33 -#define __NR_nice 34 -#define __NR_ftime 35 -#define __NR_sync 36 -#define __NR_kill 37 -#define __NR_rename 38 -#define __NR_mkdir 39 -#define __NR_rmdir 40 -#define __NR_dup 41 -#define __NR_pipe 42 -#define __NR_times 43 -#define __NR_prof 44 -#define __NR_brk 45 -#define __NR_setgid 46 -#define __NR_getgid 47 -#define __NR_signal 48 -#define __NR_geteuid 49 -#define __NR_getegid 50 -#define __NR_acct 51 -#define __NR_umount2 52 -#define __NR_lock 53 -#define __NR_ioctl 54 -#define __NR_fcntl 55 -#define __NR_mpx 56 -#define __NR_setpgid 57 -#define __NR_ulimit 58 -#define __NR_oldolduname 59 -#define __NR_umask 60 -#define __NR_chroot 61 -#define __NR_ustat 62 -#define __NR_dup2 63 -#define __NR_getppid 64 -#define __NR_getpgrp 65 -#define __NR_setsid 66 -#define __NR_sigaction 67 -#define __NR_sgetmask 68 -#define __NR_ssetmask 69 -#define __NR_setreuid 70 -#define __NR_setregid 71 -#define __NR_sigsuspend 72 -#define __NR_sigpending 73 -#define __NR_sethostname 74 -#define __NR_setrlimit 75 -#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */ -#define __NR_getrusage 77 -#define __NR_gettimeofday 78 -#define __NR_settimeofday 79 -#define __NR_getgroups 80 -#define __NR_setgroups 81 -#define __NR_select 82 -#define __NR_symlink 83 -#define __NR_oldlstat 84 -#define __NR_readlink 85 -#define __NR_uselib 86 -#define __NR_swapon 87 -#define __NR_reboot 88 -#define __NR_readdir 89 -#define __NR_mmap 90 -#define __NR_munmap 91 -#define __NR_truncate 92 -#define __NR_ftruncate 93 -#define __NR_fchmod 94 -#define __NR_fchown 95 -#define __NR_getpriority 96 -#define __NR_setpriority 97 -#define __NR_profil 98 -#define __NR_statfs 99 -#define __NR_fstatfs 100 -#define __NR_ioperm 101 -#define __NR_socketcall 102 -#define __NR_syslog 103 -#define __NR_setitimer 104 -#define __NR_getitimer 105 -#define __NR_stat 106 -#define __NR_lstat 107 -#define __NR_fstat 108 -#define __NR_olduname 109 -#define __NR_iopl 110 -#define __NR_vhangup 111 -#define __NR_idle 112 -#define __NR_vm86old 113 -#define __NR_wait4 114 -#define __NR_swapoff 115 -#define __NR_sysinfo 116 -#define __NR_ipc 117 -#define __NR_fsync 118 -#define __NR_sigreturn 119 -#define __NR_clone 120 -#define __NR_setdomainname 121 -#define __NR_uname 122 -#define __NR_modify_ldt 123 -#define __NR_adjtimex 124 -#define __NR_mprotect 125 -#define __NR_sigprocmask 126 -#define __NR_create_module 127 -#define __NR_init_module 128 -#define __NR_delete_module 129 -#define __NR_get_kernel_syms 130 -#define __NR_quotactl 131 -#define __NR_getpgid 132 -#define __NR_fchdir 133 -#define __NR_bdflush 134 -#define __NR_sysfs 135 -#define __NR_personality 136 -#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ -#define __NR_setfsuid 138 -#define __NR_setfsgid 139 -#define __NR__llseek 140 -#define __NR_getdents 141 -#define __NR__newselect 142 -#define __NR_flock 143 -#define __NR_msync 144 -#define __NR_readv 145 -#define __NR_writev 146 -#define __NR_getsid 147 -#define __NR_fdatasync 148 -#define __NR__sysctl 149 -#define __NR_mlock 150 -#define __NR_munlock 151 -#define __NR_mlockall 152 -#define __NR_munlockall 153 -#define __NR_sched_setparam 154 -#define __NR_sched_getparam 155 -#define __NR_sched_setscheduler 156 -#define __NR_sched_getscheduler 157 -#define __NR_sched_yield 158 -#define __NR_sched_get_priority_max 159 -#define __NR_sched_get_priority_min 160 -#define __NR_sched_rr_get_interval 161 -#define __NR_nanosleep 162 -#define __NR_mremap 163 -#define __NR_setresuid 164 -#define __NR_getresuid 165 -#define __NR_vm86 166 -#define __NR_query_module 167 -#define __NR_poll 168 -#define __NR_nfsservctl 169 -#define __NR_setresgid 170 -#define __NR_getresgid 171 -#define __NR_prctl 172 -#define __NR_rt_sigreturn 173 -#define __NR_rt_sigaction 174 -#define __NR_rt_sigprocmask 175 -#define __NR_rt_sigpending 176 -#define __NR_rt_sigtimedwait 177 -#define __NR_rt_sigqueueinfo 178 -#define __NR_rt_sigsuspend 179 -#define __NR_pread64 180 -#define __NR_pwrite64 181 -#define __NR_chown 182 -#define __NR_getcwd 183 -#define __NR_capget 184 -#define __NR_capset 185 -#define __NR_sigaltstack 186 -#define __NR_sendfile 187 -#define __NR_getpmsg 188 /* some people actually want streams */ -#define __NR_putpmsg 189 /* some people actually want streams */ -#define __NR_vfork 190 -#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */ -#define __NR_mmap2 192 -#define __NR_truncate64 193 -#define __NR_ftruncate64 194 -#define __NR_stat64 195 -#define __NR_lstat64 196 -#define __NR_fstat64 197 -#define __NR_lchown32 198 -#define __NR_getuid32 199 -#define __NR_getgid32 200 -#define __NR_geteuid32 201 -#define __NR_getegid32 202 -#define __NR_setreuid32 203 -#define __NR_setregid32 204 -#define __NR_getgroups32 205 -#define __NR_setgroups32 206 -#define __NR_fchown32 207 -#define __NR_setresuid32 208 -#define __NR_getresuid32 209 -#define __NR_setresgid32 210 -#define __NR_getresgid32 211 -#define __NR_chown32 212 -#define __NR_setuid32 213 -#define __NR_setgid32 214 -#define __NR_setfsuid32 215 -#define __NR_setfsgid32 216 -#define __NR_pivot_root 217 -#define __NR_mincore 218 -#define __NR_madvise 219 -#define __NR_madvise1 219 /* delete when C lib stub is removed */ -#define __NR_getdents64 220 -#define __NR_fcntl64 221 -/* 223 is unused */ -#define __NR_gettid 224 -#define __NR_readahead 225 -#define __NR_setxattr 226 -#define __NR_lsetxattr 227 -#define __NR_fsetxattr 228 -#define __NR_getxattr 229 -#define __NR_lgetxattr 230 -#define __NR_fgetxattr 231 -#define __NR_listxattr 232 -#define __NR_llistxattr 233 -#define __NR_flistxattr 234 -#define __NR_removexattr 235 -#define __NR_lremovexattr 236 -#define __NR_fremovexattr 237 -#define __NR_tkill 238 -#define __NR_sendfile64 239 -#define __NR_futex 240 -#define __NR_sched_setaffinity 241 -#define __NR_sched_getaffinity 242 -#define __NR_set_thread_area 243 -#define __NR_get_thread_area 244 -#define __NR_io_setup 245 -#define __NR_io_destroy 246 -#define __NR_io_getevents 247 -#define __NR_io_submit 248 -#define __NR_io_cancel 249 -#define __NR_fadvise64 250 - -#define __NR_exit_group 252 -#define __NR_lookup_dcookie 253 -#define __NR_epoll_create 254 -#define __NR_epoll_ctl 255 -#define __NR_epoll_wait 256 -#define __NR_remap_file_pages 257 -#define __NR_set_tid_address 258 -#define __NR_timer_create 259 -#define __NR_timer_settime (__NR_timer_create+1) -#define __NR_timer_gettime (__NR_timer_create+2) -#define __NR_timer_getoverrun (__NR_timer_create+3) -#define __NR_timer_delete (__NR_timer_create+4) -#define __NR_clock_settime (__NR_timer_create+5) -#define __NR_clock_gettime (__NR_timer_create+6) -#define __NR_clock_getres (__NR_timer_create+7) -#define __NR_clock_nanosleep (__NR_timer_create+8) -#define __NR_statfs64 268 -#define __NR_fstatfs64 269 -#define __NR_tgkill 270 -#define __NR_utimes 271 -#define __NR_fadvise64_64 272 -#define __NR_vserver 273 -#define __NR_mbind 274 -#define __NR_get_mempolicy 275 -#define __NR_set_mempolicy 276 -#define __NR_mq_open 277 -#define __NR_mq_unlink (__NR_mq_open+1) -#define __NR_mq_timedsend (__NR_mq_open+2) -#define __NR_mq_timedreceive (__NR_mq_open+3) -#define __NR_mq_notify (__NR_mq_open+4) -#define __NR_mq_getsetattr (__NR_mq_open+5) -#define __NR_kexec_load 283 -#define __NR_waitid 284 -#define __NR_add_key 286 -#define __NR_request_key 287 -#define __NR_keyctl 288 -#define __NR_cacheflush 289 -#define __NR_ioprio_set 290 -#define __NR_ioprio_get 291 -#define __NR_inotify_init 292 -#define __NR_inotify_add_watch 293 -#define __NR_inotify_rm_watch 294 -#define __NR_migrate_pages 295 -#define __NR_openat 296 -#define __NR_mkdirat 297 -#define __NR_mknodat 298 -#define __NR_fchownat 299 -#define __NR_futimesat 300 -#define __NR_fstatat64 301 -#define __NR_unlinkat 302 -#define __NR_renameat 303 -#define __NR_linkat 304 -#define __NR_symlinkat 305 -#define __NR_readlinkat 306 -#define __NR_fchmodat 307 -#define __NR_faccessat 308 -#define __NR_pselect6 309 -#define __NR_ppoll 310 -#define __NR_unshare 311 -#define __NR_set_robust_list 312 -#define __NR_get_robust_list 313 -#define __NR_splice 314 -#define __NR_sync_file_range 315 -#define __NR_tee 316 -#define __NR_vmsplice 317 -#define __NR_move_pages 318 -#define __NR_getcpu 319 -#define __NR_epoll_pwait 320 -#define __NR_utimensat 321 -#define __NR_signalfd 322 -#define __NR_timerfd_create 323 -#define __NR_eventfd 324 -#define __NR_fallocate 325 -#define __NR_timerfd_settime 326 -#define __NR_timerfd_gettime 327 -#define __NR_signalfd4 328 -#define __NR_eventfd2 329 -#define __NR_epoll_create1 330 -#define __NR_dup3 331 -#define __NR_pipe2 332 -#define __NR_inotify_init1 333 -#define __NR_preadv 334 -#define __NR_pwritev 335 -#define __NR_rt_tgsigqueueinfo 336 -#define __NR_perf_event_open 337 -#define __NR_recvmmsg 338 -#define __NR_setns 339 - -#endif /* _UAPI_ASM_UNISTD_H */ diff --git a/arch/mn10300/kernel/Makefile b/arch/mn10300/kernel/Makefile deleted file mode 100644 index de32af0e4b6e..000000000000 --- a/arch/mn10300/kernel/Makefile +++ /dev/null @@ -1,29 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Makefile for the MN10300-specific core kernel code -# -extra-y := head.o vmlinux.lds - -fpu-obj-y := fpu-nofpu.o fpu-nofpu-low.o -fpu-obj-$(CONFIG_FPU) := fpu.o fpu-low.o - -obj-y := process.o signal.o entry.o traps.o irq.o \ - ptrace.o setup.o time.o sys_mn10300.o io.o \ - switch_to.o mn10300_ksyms.o $(fpu-obj-y) \ - csrc-mn10300.o cevt-mn10300.o - -obj-$(CONFIG_SMP) += smp.o smp-low.o - -obj-$(CONFIG_MN10300_WD_TIMER) += mn10300-watchdog.o mn10300-watchdog-low.o - -obj-$(CONFIG_MN10300_TTYSM) += mn10300-serial.o mn10300-serial-low.o \ - mn10300-debug.o -obj-$(CONFIG_GDBSTUB) += gdb-stub.o gdb-low.o -obj-$(CONFIG_GDBSTUB_ON_TTYSx) += gdb-io-serial.o gdb-io-serial-low.o -obj-$(CONFIG_GDBSTUB_ON_TTYSMx) += gdb-io-ttysm.o gdb-io-ttysm-low.o - -obj-$(CONFIG_MN10300_RTC) += rtc.o -obj-$(CONFIG_PROFILE) += profile.o profile-low.o -obj-$(CONFIG_MODULES) += module.o -obj-$(CONFIG_KPROBES) += kprobes.o -obj-$(CONFIG_KGDB) += kgdb.o diff --git a/arch/mn10300/kernel/asm-offsets.c b/arch/mn10300/kernel/asm-offsets.c deleted file mode 100644 index 57e6cc96267b..000000000000 --- a/arch/mn10300/kernel/asm-offsets.c +++ /dev/null @@ -1,108 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Generate definitions needed by assembly language modules. - * This code generates raw asm output which is post-processed - * to extract and format the required data. - */ - -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/personality.h> -#include <linux/kbuild.h> -#include <asm/ucontext.h> -#include <asm/processor.h> -#include <asm/thread_info.h> -#include <asm/ptrace.h> -#include "sigframe.h" -#include "mn10300-serial.h" - -void foo(void) -{ - OFFSET(SIGCONTEXT_d0, sigcontext, d0); - OFFSET(SIGCONTEXT_d1, sigcontext, d1); - BLANK(); - - OFFSET(TI_task, thread_info, task); - OFFSET(TI_frame, thread_info, frame); - OFFSET(TI_flags, thread_info, flags); - OFFSET(TI_cpu, thread_info, cpu); - OFFSET(TI_preempt_count, thread_info, preempt_count); - OFFSET(TI_addr_limit, thread_info, addr_limit); - BLANK(); - - OFFSET(REG_D0, pt_regs, d0); - OFFSET(REG_D1, pt_regs, d1); - OFFSET(REG_D2, pt_regs, d2); - OFFSET(REG_D3, pt_regs, d3); - OFFSET(REG_A0, pt_regs, a0); - OFFSET(REG_A1, pt_regs, a1); - OFFSET(REG_A2, pt_regs, a2); - OFFSET(REG_A3, pt_regs, a3); - OFFSET(REG_E0, pt_regs, e0); - OFFSET(REG_E1, pt_regs, e1); - OFFSET(REG_E2, pt_regs, e2); - OFFSET(REG_E3, pt_regs, e3); - OFFSET(REG_E4, pt_regs, e4); - OFFSET(REG_E5, pt_regs, e5); - OFFSET(REG_E6, pt_regs, e6); - OFFSET(REG_E7, pt_regs, e7); - OFFSET(REG_SP, pt_regs, sp); - OFFSET(REG_EPSW, pt_regs, epsw); - OFFSET(REG_PC, pt_regs, pc); - OFFSET(REG_LAR, pt_regs, lar); - OFFSET(REG_LIR, pt_regs, lir); - OFFSET(REG_MDR, pt_regs, mdr); - OFFSET(REG_MCVF, pt_regs, mcvf); - OFFSET(REG_MCRL, pt_regs, mcrl); - OFFSET(REG_MCRH, pt_regs, mcrh); - OFFSET(REG_MDRQ, pt_regs, mdrq); - OFFSET(REG_ORIG_D0, pt_regs, orig_d0); - OFFSET(REG_NEXT, pt_regs, next); - DEFINE(REG__END, sizeof(struct pt_regs)); - BLANK(); - - OFFSET(THREAD_UREGS, thread_struct, uregs); - OFFSET(THREAD_PC, thread_struct, pc); - OFFSET(THREAD_SP, thread_struct, sp); - OFFSET(THREAD_A3, thread_struct, a3); - OFFSET(THREAD_USP, thread_struct, usp); -#ifdef CONFIG_FPU - OFFSET(THREAD_FPU_FLAGS, thread_struct, fpu_flags); - OFFSET(THREAD_FPU_STATE, thread_struct, fpu_state); - DEFINE(__THREAD_USING_FPU, THREAD_USING_FPU); - DEFINE(__THREAD_HAS_FPU, THREAD_HAS_FPU); -#endif /* CONFIG_FPU */ - BLANK(); - - OFFSET(TASK_THREAD, task_struct, thread); - BLANK(); - - DEFINE(CLONE_VM_asm, CLONE_VM); - DEFINE(CLONE_FS_asm, CLONE_FS); - DEFINE(CLONE_FILES_asm, CLONE_FILES); - DEFINE(CLONE_SIGHAND_asm, CLONE_SIGHAND); - DEFINE(CLONE_UNTRACED_asm, CLONE_UNTRACED); - DEFINE(SIGCHLD_asm, SIGCHLD); - BLANK(); - - OFFSET(RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext); - - DEFINE(PAGE_SIZE_asm, PAGE_SIZE); - - OFFSET(__rx_buffer, mn10300_serial_port, rx_buffer); - OFFSET(__rx_inp, mn10300_serial_port, rx_inp); - OFFSET(__rx_outp, mn10300_serial_port, rx_outp); - OFFSET(__uart_state, mn10300_serial_port, uart.state); - OFFSET(__tx_xchar, mn10300_serial_port, tx_xchar); - OFFSET(__tx_flags, mn10300_serial_port, tx_flags); - OFFSET(__intr_flags, mn10300_serial_port, intr_flags); - OFFSET(__rx_icr, mn10300_serial_port, rx_icr); - OFFSET(__tx_icr, mn10300_serial_port, tx_icr); - OFFSET(__tm_icr, mn10300_serial_port, _tmicr); - OFFSET(__iobase, mn10300_serial_port, _iobase); - - DEFINE(__UART_XMIT_SIZE, UART_XMIT_SIZE); - OFFSET(__xmit_buffer, uart_state, xmit.buf); - OFFSET(__xmit_head, uart_state, xmit.head); - OFFSET(__xmit_tail, uart_state, xmit.tail); -} diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c deleted file mode 100644 index 2b21bbc9efa4..000000000000 --- a/arch/mn10300/kernel/cevt-mn10300.c +++ /dev/null @@ -1,137 +0,0 @@ -/* MN10300 clockevents - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/clockchips.h> -#include <linux/interrupt.h> -#include <linux/percpu.h> -#include <linux/smp.h> -#include <asm/timex.h> -#include "internal.h" - -#ifdef CONFIG_SMP -#if (CONFIG_NR_CPUS > 2) && !defined(CONFIG_GEENERIC_CLOCKEVENTS_BROADCAST) -#error "This doesn't scale well! Need per-core local timers." -#endif -#else /* CONFIG_SMP */ -#define stop_jiffies_counter1() -#define reload_jiffies_counter1(x) -#define TMJC1IRQ TMJCIRQ -#endif - - -static int next_event(unsigned long delta, - struct clock_event_device *evt) -{ - unsigned int cpu = smp_processor_id(); - - if (cpu == 0) { - stop_jiffies_counter(); - reload_jiffies_counter(delta - 1); - } else { - stop_jiffies_counter1(); - reload_jiffies_counter1(delta - 1); - } - return 0; -} - -static DEFINE_PER_CPU(struct clock_event_device, mn10300_clockevent_device); -static DEFINE_PER_CPU(struct irqaction, timer_irq); - -static irqreturn_t timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *cd; - unsigned int cpu = smp_processor_id(); - - if (cpu == 0) - stop_jiffies_counter(); - else - stop_jiffies_counter1(); - - cd = &per_cpu(mn10300_clockevent_device, cpu); - cd->event_handler(cd); - - return IRQ_HANDLED; -} - -static void event_handler(struct clock_event_device *dev) -{ -} - -static inline void setup_jiffies_interrupt(int irq, - struct irqaction *action) -{ - u16 tmp; - setup_irq(irq, action); - set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL)); - GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST; - tmp = GxICR(irq); -} - -int __init init_clockevents(void) -{ - struct clock_event_device *cd; - struct irqaction *iact; - unsigned int cpu = smp_processor_id(); - - cd = &per_cpu(mn10300_clockevent_device, cpu); - - if (cpu == 0) { - stop_jiffies_counter(); - cd->irq = TMJCIRQ; - } else { - stop_jiffies_counter1(); - cd->irq = TMJC1IRQ; - } - - cd->name = "Timestamp"; - cd->features = CLOCK_EVT_FEAT_ONESHOT; - - /* Calculate shift/mult. We want to spawn at least 1 second */ - clockevents_calc_mult_shift(cd, MN10300_JCCLK, 1); - - /* Calculate the min / max delta */ - cd->max_delta_ns = clockevent_delta2ns(TMJCBR_MAX, cd); - cd->max_delta_ticks = TMJCBR_MAX; - cd->min_delta_ns = clockevent_delta2ns(100, cd); - cd->min_delta_ticks = 100; - - cd->rating = 200; - cd->cpumask = cpumask_of(smp_processor_id()); - cd->event_handler = event_handler; - cd->set_next_event = next_event; - - iact = &per_cpu(timer_irq, cpu); - iact->flags = IRQF_SHARED | IRQF_TIMER; - iact->handler = timer_interrupt; - - clockevents_register_device(cd); - -#if defined(CONFIG_SMP) && !defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) - /* setup timer irq affinity so it only runs on this cpu */ - { - struct irq_data *data; - data = irq_get_irq_data(cd->irq); - cpumask_copy(irq_data_get_affinity_mask(data), cpumask_of(cpu)); - iact->flags |= IRQF_NOBALANCING; - } -#endif - - if (cpu == 0) { - reload_jiffies_counter(MN10300_JC_PER_HZ - 1); - iact->name = "CPU0 Timer"; - } else { - reload_jiffies_counter1(MN10300_JC_PER_HZ - 1); - iact->name = "CPU1 Timer"; - } - - setup_jiffies_interrupt(cd->irq, iact); - - return 0; -} diff --git a/arch/mn10300/kernel/csrc-mn10300.c b/arch/mn10300/kernel/csrc-mn10300.c deleted file mode 100644 index 6b74df3661f2..000000000000 --- a/arch/mn10300/kernel/csrc-mn10300.c +++ /dev/null @@ -1,34 +0,0 @@ -/* MN10300 clocksource - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/clocksource.h> -#include <linux/init.h> -#include <asm/timex.h> -#include "internal.h" - -static u64 mn10300_read(struct clocksource *cs) -{ - return read_timestamp_counter(); -} - -static struct clocksource clocksource_mn10300 = { - .name = "TSC", - .rating = 200, - .read = mn10300_read, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -int __init init_clocksource(void) -{ - startup_timestamp_counter(); - clocksource_register_hz(&clocksource_mn10300, MN10300_TSCCLK); - return 0; -} diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S deleted file mode 100644 index 177d61de51c9..000000000000 --- a/arch/mn10300/kernel/entry.S +++ /dev/null @@ -1,772 +0,0 @@ -############################################################################### -# -# MN10300 Exception and interrupt entry points -# -# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Modified by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/irqflags.h> -#include <asm/thread_info.h> -#include <asm/intctl-regs.h> -#include <asm/busctl-regs.h> -#include <asm/timer-regs.h> -#include <unit/leds.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/errno.h> -#include <asm/asm-offsets.h> -#include <asm/frame.inc> - -#if defined(CONFIG_SMP) && defined(CONFIG_GDBSTUB) -#include <asm/gdb-stub.h> -#endif /* CONFIG_SMP && CONFIG_GDBSTUB */ - -#ifdef CONFIG_PREEMPT -#define preempt_stop LOCAL_IRQ_DISABLE -#else -#define preempt_stop -#define resume_kernel restore_all -#endif - - .am33_2 - -############################################################################### -# -# the return path for a forked child -# - on entry, D0 holds the address of the previous task to run -# -############################################################################### -ENTRY(ret_from_fork) - call schedule_tail[],0 - GET_THREAD_INFO a2 - - # return 0 to indicate child process - clr d0 - mov d0,(REG_D0,fp) - jmp syscall_exit - -ENTRY(ret_from_kernel_thread) - call schedule_tail[],0 - mov (REG_D0,fp),d0 - mov (REG_A0,fp),a0 - calls (a0) - GET_THREAD_INFO a2 # A2 must be set on return from sys_exit() - clr d0 - mov d0,(REG_D0,fp) - jmp syscall_exit - -############################################################################### -# -# system call handler -# -############################################################################### -ENTRY(system_call) - add -4,sp - SAVE_ALL - mov d0,(REG_ORIG_D0,fp) - GET_THREAD_INFO a2 - cmp nr_syscalls,d0 - bcc syscall_badsys - btst _TIF_SYSCALL_TRACE,(TI_flags,a2) - bne syscall_entry_trace -syscall_call: - add d0,d0,a1 - add a1,a1 - mov (REG_A0,fp),d0 - mov (sys_call_table,a1),a0 - calls (a0) - mov d0,(REG_D0,fp) -syscall_exit: - # make sure we don't miss an interrupt setting need_resched or - # sigpending between sampling and the rti - LOCAL_IRQ_DISABLE - mov (TI_flags,a2),d2 - btst _TIF_ALLWORK_MASK,d2 - bne syscall_exit_work -restore_all: - RESTORE_ALL - -############################################################################### -# -# perform work that needs to be done immediately before resumption and syscall -# tracing -# -############################################################################### - ALIGN -syscall_exit_work: - mov (REG_EPSW,fp),d0 - and EPSW_nSL,d0 - beq resume_kernel # returning to supervisor mode - - LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call - # schedule() instead - btst _TIF_SYSCALL_TRACE,d2 - beq work_pending - mov fp,d0 - call syscall_trace_exit[],0 # do_syscall_trace(regs) - jmp resume_userspace - - ALIGN -work_pending: - btst _TIF_NEED_RESCHED,d2 - beq work_notifysig - -work_resched: - call schedule[],0 - -resume_userspace: - # make sure we don't miss an interrupt setting need_resched or - # sigpending between sampling and the rti - LOCAL_IRQ_DISABLE - - # is there any work to be done other than syscall tracing? - mov (TI_flags,a2),d2 - btst _TIF_WORK_MASK,d2 - beq restore_all - - LOCAL_IRQ_ENABLE - btst _TIF_NEED_RESCHED,d2 - bne work_resched - - # deal with pending signals and notify-resume requests -work_notifysig: - mov fp,d0 - mov d2,d1 - call do_notify_resume[],0 - jmp resume_userspace - - # perform syscall entry tracing -syscall_entry_trace: - mov -ENOSYS,d0 - mov d0,(REG_D0,fp) - mov fp,d0 - call syscall_trace_entry[],0 # returns the syscall number to actually use - mov (REG_D1,fp),d1 - cmp nr_syscalls,d0 - bcs syscall_call - jmp syscall_exit - -syscall_badsys: - mov -ENOSYS,d0 - mov d0,(REG_D0,fp) - jmp resume_userspace - - # userspace resumption stub bypassing syscall exit tracing - .globl ret_from_exception, ret_from_intr - ALIGN -ret_from_exception: - preempt_stop -ret_from_intr: - GET_THREAD_INFO a2 - mov (REG_EPSW,fp),d0 # need to deliver signals before - # returning to userspace - and EPSW_nSL,d0 - bne resume_userspace # returning to userspace - -#ifdef CONFIG_PREEMPT -resume_kernel: - LOCAL_IRQ_DISABLE - mov (TI_preempt_count,a2),d0 # non-zero preempt_count ? - cmp 0,d0 - bne restore_all - -need_resched: - btst _TIF_NEED_RESCHED,(TI_flags,a2) - beq restore_all - mov (REG_EPSW,fp),d0 - and EPSW_IM,d0 - cmp EPSW_IM_7,d0 # interrupts off (exception path) ? - bne restore_all - call preempt_schedule_irq[],0 - jmp need_resched -#else - jmp resume_kernel -#endif - - -############################################################################### -# -# IRQ handler entry point -# - intended to be entered at multiple priorities -# -############################################################################### -ENTRY(irq_handler) - add -4,sp - SAVE_ALL - - # it's not a syscall - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - - mov fp,d0 - call do_IRQ[],0 # do_IRQ(regs) - - jmp ret_from_intr - -############################################################################### -# -# Double Fault handler entry point -# - note that there will not be a stack, D0/A0 will hold EPSW/PC as were -# -############################################################################### - .section .bss - .balign THREAD_SIZE - .space THREAD_SIZE -__df_stack: - .previous - -ENTRY(double_fault) - mov a0,(__df_stack-4) # PC as was - mov d0,(__df_stack-8) # EPSW as was - mn10300_set_dbfleds # display 'db-f' on the LEDs - mov 0xaa55aa55,d0 - mov d0,(__df_stack-12) # no ORIG_D0 - mov sp,a0 # save corrupted SP - mov __df_stack-12,sp # emergency supervisor stack - SAVE_ALL - mov a0,(REG_A0,fp) # save corrupted SP as A0 (which got - # clobbered by the CPU) - mov fp,d0 - calls do_double_fault -double_fault_loop: - bra double_fault_loop - -############################################################################### -# -# Bus Error handler entry point -# - handle external (async) bus errors separately -# -############################################################################### -ENTRY(raw_bus_error) - add -4,sp - mov d0,(sp) -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d0 - mov d0,(MMUCTR) -#endif - mov (BCBERR),d0 # what - btst BCBERR_BEMR_DMA,d0 # see if it was an external bus error - beq __common_exception_aux # it wasn't - - SAVE_ALL - mov (BCBEAR),d1 # destination of erroneous access - - mov (REG_ORIG_D0,fp),d2 - mov d2,(REG_D0,fp) - mov -1,d2 - mov d2,(REG_ORIG_D0,fp) - - add -4,sp - mov fp,(12,sp) # frame pointer - call io_bus_error[],0 - jmp restore_all - -############################################################################### -# -# NMI exception entry points -# -# This is used by ordinary interrupt channels that have the GxICR_NMI bit set -# in addition to the main NMI and Watchdog channels. SMP NMI IPIs use this -# facility. -# -############################################################################### -ENTRY(nmi_handler) - add -4,sp - mov d0,(sp) - mov (TBR),d0 - -#ifdef CONFIG_SMP - add -4,sp - mov d0,(sp) # save d0(TBR) - movhu (NMIAGR),d0 - and NMIAGR_GN,d0 - lsr 0x2,d0 - cmp CALL_FUNCTION_NMI_IPI,d0 - bne nmi_not_smp_callfunc # if not call function, jump - - # function call nmi ipi - add 4,sp # no need to store TBR - mov GxICR_DETECT,d0 # clear NMI request - movbu d0,(GxICR(CALL_FUNCTION_NMI_IPI)) - movhu (GxICR(CALL_FUNCTION_NMI_IPI)),d0 - and ~EPSW_NMID,epsw # enable NMI - - mov (sp),d0 # restore d0 - SAVE_ALL - call smp_nmi_call_function_interrupt[],0 - RESTORE_ALL - -nmi_not_smp_callfunc: -#ifdef CONFIG_KERNEL_DEBUGGER - cmp DEBUGGER_NMI_IPI,d0 - bne nmi_not_debugger # if not kernel debugger NMI IPI, jump - - # kernel debugger NMI IPI - add 4,sp # no need to store TBR - mov GxICR_DETECT,d0 # clear NMI - movbu d0,(GxICR(DEBUGGER_NMI_IPI)) - movhu (GxICR(DEBUGGER_NMI_IPI)),d0 - and ~EPSW_NMID,epsw # enable NMI - - mov (sp),d0 - SAVE_ALL - mov fp,d0 # arg 0: stacked register file - mov a2,d1 # arg 1: exception number - call debugger_nmi_interrupt[],0 - RESTORE_ALL - -nmi_not_debugger: -#endif /* CONFIG_KERNEL_DEBUGGER */ - mov (sp),d0 # restore TBR to d0 - add 4,sp -#endif /* CONFIG_SMP */ - - bra __common_exception_nonmi - -############################################################################### -# -# General exception entry point -# -############################################################################### -ENTRY(__common_exception) - add -4,sp - mov d0,(sp) -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d0 - mov d0,(MMUCTR) -#endif - -__common_exception_aux: - mov (TBR),d0 - and ~EPSW_NMID,epsw # turn NMIs back on if not NMI - or EPSW_IE,epsw - -__common_exception_nonmi: - and 0x0000FFFF,d0 # turn the exception code into a vector - # table index - - btst 0x00000007,d0 - bne 1f - cmp 0x00000400,d0 - bge 1f - - SAVE_ALL # build the stack frame - - mov (REG_D0,fp),a2 # get the exception number - mov (REG_ORIG_D0,fp),d0 - mov d0,(REG_D0,fp) - mov -1,d0 - mov d0,(REG_ORIG_D0,fp) - -#ifdef CONFIG_GDBSTUB -#ifdef CONFIG_SMP - call gdbstub_busy_check[],0 - and d0,d0 # check return value - beq 2f -#else /* CONFIG_SMP */ - btst 0x01,(gdbstub_busy) - beq 2f -#endif /* CONFIG_SMP */ - and ~EPSW_IE,epsw - mov fp,d0 - mov a2,d1 - call gdbstub_exception[],0 # gdbstub itself caused an exception - bra restore_all -2: -#endif /* CONFIG_GDBSTUB */ - - mov fp,d0 # arg 0: stacked register file - mov a2,d1 # arg 1: exception number - lsr 1,a2 - - mov (exception_table,a2),a2 - calls (a2) - jmp ret_from_exception - -1: pi # BUG() equivalent - -############################################################################### -# -# Exception handler functions table -# -############################################################################### - .data -ENTRY(exception_table) - .rept 0x400>>1 - .long uninitialised_exception - .endr - .previous - -############################################################################### -# -# Change an entry in the exception table -# - D0 exception code, D1 handler -# -############################################################################### -ENTRY(set_excp_vector) - lsr 1,d0 - add exception_table,d0 - mov d1,(d0) - mov 4,d1 - ret [],0 - -############################################################################### -# -# System call table -# -############################################################################### - .data -ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_lchown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 - old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall /* old sys_olduname */ - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_old_select - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long sys_old_readdir - .long old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall /* old sys_uname */ - .long sys_ni_syscall /* 110 - iopl */ - .long sys_vhangup - .long sys_ni_syscall /* old "idle" system call */ - .long sys_ni_syscall /* vm86old */ - .long sys_wait4 - .long sys_swapoff /* 115 */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_ni_syscall /* modify_ldt */ - .long sys_adjtimex - .long sys_mprotect /* 125 */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "create_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130: old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* reserved for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_mlock /* 150 */ - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_mremap - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_ni_syscall /* vm86 */ - .long sys_ni_syscall /* Old sys_query_module */ - .long sys_poll - .long sys_ni_syscall /* was nfsservctl */ - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_chown16 - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* reserved for streams1 */ - .long sys_ni_syscall /* reserved for streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap_pgoff - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_lchown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_chown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_mincore - .long sys_madvise - .long sys_getdents64 /* 220 */ - .long sys_fcntl64 - .long sys_ni_syscall /* reserved for TUX */ - .long sys_ni_syscall - .long sys_gettid - .long sys_readahead /* 225 */ - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr - .long sys_getxattr - .long sys_lgetxattr /* 230 */ - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr - .long sys_flistxattr - .long sys_removexattr /* 235 */ - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_tkill - .long sys_sendfile64 - .long sys_futex /* 240 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_ni_syscall /* sys_set_thread_area */ - .long sys_ni_syscall /* sys_get_thread_area */ - .long sys_io_setup /* 245 */ - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel - .long sys_fadvise64 /* 250 */ - .long sys_ni_syscall - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 255 */ - .long sys_epoll_wait - .long sys_remap_file_pages - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 260 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 265 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 270 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_ni_syscall /* sys_vserver */ - .long sys_mbind - .long sys_get_mempolicy /* 275 */ - .long sys_set_mempolicy - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive /* 280 */ - .long sys_mq_notify - .long sys_mq_getsetattr - .long sys_kexec_load - .long sys_waitid - .long sys_ni_syscall /* 285 */ /* available */ - .long sys_add_key - .long sys_request_key - .long sys_keyctl - .long sys_cacheflush - .long sys_ioprio_set /* 290 */ - .long sys_ioprio_get - .long sys_inotify_init - .long sys_inotify_add_watch - .long sys_inotify_rm_watch - .long sys_migrate_pages /* 295 */ - .long sys_openat - .long sys_mkdirat - .long sys_mknodat - .long sys_fchownat - .long sys_futimesat /* 300 */ - .long sys_fstatat64 - .long sys_unlinkat - .long sys_renameat - .long sys_linkat - .long sys_symlinkat /* 305 */ - .long sys_readlinkat - .long sys_fchmodat - .long sys_faccessat - .long sys_pselect6 - .long sys_ppoll /* 310 */ - .long sys_unshare - .long sys_set_robust_list - .long sys_get_robust_list - .long sys_splice - .long sys_sync_file_range /* 315 */ - .long sys_tee - .long sys_vmsplice - .long sys_move_pages - .long sys_getcpu - .long sys_epoll_pwait /* 320 */ - .long sys_utimensat - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate /* 325 */ - .long sys_timerfd_settime - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 /* 330 */ - .long sys_dup3 - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev /* 335 */ - .long sys_rt_tgsigqueueinfo - .long sys_perf_event_open - .long sys_recvmmsg - .long sys_setns - - -nr_syscalls=(.-sys_call_table)/4 diff --git a/arch/mn10300/kernel/fpu-low.S b/arch/mn10300/kernel/fpu-low.S deleted file mode 100644 index 78df25cfae29..000000000000 --- a/arch/mn10300/kernel/fpu-low.S +++ /dev/null @@ -1,258 +0,0 @@ -/* MN10300 Low level FPU management operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/linkage.h> -#include <asm/cpu-regs.h> -#include <asm/smp.h> -#include <asm/thread_info.h> -#include <asm/asm-offsets.h> -#include <asm/frame.inc> - -.macro FPU_INIT_STATE_ALL - fmov 0,fs0 - fmov fs0,fs1 - fmov fs0,fs2 - fmov fs0,fs3 - fmov fs0,fs4 - fmov fs0,fs5 - fmov fs0,fs6 - fmov fs0,fs7 - fmov fs0,fs8 - fmov fs0,fs9 - fmov fs0,fs10 - fmov fs0,fs11 - fmov fs0,fs12 - fmov fs0,fs13 - fmov fs0,fs14 - fmov fs0,fs15 - fmov fs0,fs16 - fmov fs0,fs17 - fmov fs0,fs18 - fmov fs0,fs19 - fmov fs0,fs20 - fmov fs0,fs21 - fmov fs0,fs22 - fmov fs0,fs23 - fmov fs0,fs24 - fmov fs0,fs25 - fmov fs0,fs26 - fmov fs0,fs27 - fmov fs0,fs28 - fmov fs0,fs29 - fmov fs0,fs30 - fmov fs0,fs31 - fmov FPCR_INIT,fpcr -.endm - -.macro FPU_SAVE_ALL areg,dreg - fmov fs0,(\areg+) - fmov fs1,(\areg+) - fmov fs2,(\areg+) - fmov fs3,(\areg+) - fmov fs4,(\areg+) - fmov fs5,(\areg+) - fmov fs6,(\areg+) - fmov fs7,(\areg+) - fmov fs8,(\areg+) - fmov fs9,(\areg+) - fmov fs10,(\areg+) - fmov fs11,(\areg+) - fmov fs12,(\areg+) - fmov fs13,(\areg+) - fmov fs14,(\areg+) - fmov fs15,(\areg+) - fmov fs16,(\areg+) - fmov fs17,(\areg+) - fmov fs18,(\areg+) - fmov fs19,(\areg+) - fmov fs20,(\areg+) - fmov fs21,(\areg+) - fmov fs22,(\areg+) - fmov fs23,(\areg+) - fmov fs24,(\areg+) - fmov fs25,(\areg+) - fmov fs26,(\areg+) - fmov fs27,(\areg+) - fmov fs28,(\areg+) - fmov fs29,(\areg+) - fmov fs30,(\areg+) - fmov fs31,(\areg+) - fmov fpcr,\dreg - mov \dreg,(\areg) -.endm - -.macro FPU_RESTORE_ALL areg,dreg - fmov (\areg+),fs0 - fmov (\areg+),fs1 - fmov (\areg+),fs2 - fmov (\areg+),fs3 - fmov (\areg+),fs4 - fmov (\areg+),fs5 - fmov (\areg+),fs6 - fmov (\areg+),fs7 - fmov (\areg+),fs8 - fmov (\areg+),fs9 - fmov (\areg+),fs10 - fmov (\areg+),fs11 - fmov (\areg+),fs12 - fmov (\areg+),fs13 - fmov (\areg+),fs14 - fmov (\areg+),fs15 - fmov (\areg+),fs16 - fmov (\areg+),fs17 - fmov (\areg+),fs18 - fmov (\areg+),fs19 - fmov (\areg+),fs20 - fmov (\areg+),fs21 - fmov (\areg+),fs22 - fmov (\areg+),fs23 - fmov (\areg+),fs24 - fmov (\areg+),fs25 - fmov (\areg+),fs26 - fmov (\areg+),fs27 - fmov (\areg+),fs28 - fmov (\areg+),fs29 - fmov (\areg+),fs30 - fmov (\areg+),fs31 - mov (\areg),\dreg - fmov \dreg,fpcr -.endm - -############################################################################### -# -# void fpu_init_state(void) -# - initialise the FPU -# -############################################################################### - .globl fpu_init_state - .type fpu_init_state,@function -fpu_init_state: - mov epsw,d0 - or EPSW_FE,epsw - -#ifdef CONFIG_MN10300_PROC_MN103E010 - nop - nop - nop -#endif - FPU_INIT_STATE_ALL -#ifdef CONFIG_MN10300_PROC_MN103E010 - nop - nop - nop -#endif - mov d0,epsw - ret [],0 - - .size fpu_init_state,.-fpu_init_state - -############################################################################### -# -# void fpu_save(struct fpu_state_struct *) -# - save the fpu state -# - note that an FPU Operational exception might occur during this process -# -############################################################################### - .globl fpu_save - .type fpu_save,@function -fpu_save: - mov epsw,d1 - or EPSW_FE,epsw /* enable the FPU so we can access it */ - -#ifdef CONFIG_MN10300_PROC_MN103E010 - nop - nop -#endif - mov d0,a0 - FPU_SAVE_ALL a0,d0 -#ifdef CONFIG_MN10300_PROC_MN103E010 - nop - nop -#endif - - mov d1,epsw - ret [],0 - - .size fpu_save,.-fpu_save - -############################################################################### -# -# void fpu_disabled(void) -# - handle an exception due to the FPU being disabled -# when CONFIG_FPU is enabled -# -############################################################################### - .type fpu_disabled,@function - .globl fpu_disabled -fpu_disabled: - or EPSW_nAR|EPSW_FE,epsw - nop - nop - nop - - mov sp,a1 - mov (a1),d1 /* get epsw of user context */ - and ~(THREAD_SIZE-1),a1 /* a1: (thread_info *ti) */ - mov (TI_task,a1),a2 /* a2: (task_struct *tsk) */ - btst EPSW_nSL,d1 - beq fpu_used_in_kernel - - or EPSW_FE,d1 - mov d1,(sp) - mov (TASK_THREAD+THREAD_FPU_FLAGS,a2),d1 -#ifndef CONFIG_LAZY_SAVE_FPU - or __THREAD_HAS_FPU,d1 - mov d1,(TASK_THREAD+THREAD_FPU_FLAGS,a2) -#else /* !CONFIG_LAZY_SAVE_FPU */ - mov (fpu_state_owner),a0 - cmp 0,a0 - beq fpu_regs_save_end - - mov (TASK_THREAD+THREAD_UREGS,a0),a1 - add TASK_THREAD+THREAD_FPU_STATE,a0 - FPU_SAVE_ALL a0,d0 - - mov (REG_EPSW,a1),d0 - and ~EPSW_FE,d0 - mov d0,(REG_EPSW,a1) - -fpu_regs_save_end: - mov a2,(fpu_state_owner) -#endif /* !CONFIG_LAZY_SAVE_FPU */ - - btst __THREAD_USING_FPU,d1 - beq fpu_regs_init - add TASK_THREAD+THREAD_FPU_STATE,a2 - FPU_RESTORE_ALL a2,d0 - rti - -fpu_regs_init: - FPU_INIT_STATE_ALL - add TASK_THREAD+THREAD_FPU_FLAGS,a2 - bset __THREAD_USING_FPU,(0,a2) - rti - -fpu_used_in_kernel: - and ~(EPSW_nAR|EPSW_FE),epsw - nop - nop - - add -4,sp - SAVE_ALL - mov -1,d0 - mov d0,(REG_ORIG_D0,fp) - - and ~EPSW_NMID,epsw - - mov fp,d0 - call fpu_disabled_in_kernel[],0 - jmp ret_from_exception - - .size fpu_disabled,.-fpu_disabled diff --git a/arch/mn10300/kernel/fpu-nofpu-low.S b/arch/mn10300/kernel/fpu-nofpu-low.S deleted file mode 100644 index 7ea087a549f4..000000000000 --- a/arch/mn10300/kernel/fpu-nofpu-low.S +++ /dev/null @@ -1,39 +0,0 @@ -/* MN10300 Low level FPU management operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/linkage.h> -#include <asm/cpu-regs.h> -#include <asm/smp.h> -#include <asm/thread_info.h> -#include <asm/asm-offsets.h> -#include <asm/frame.inc> - -############################################################################### -# -# void fpu_disabled(void) -# - handle an exception due to the FPU being disabled -# when CONFIG_FPU is disabled -# -############################################################################### - .type fpu_disabled,@function - .globl fpu_disabled -fpu_disabled: - add -4,sp - SAVE_ALL - mov -1,d0 - mov d0,(REG_ORIG_D0,fp) - - and ~EPSW_NMID,epsw - - mov fp,d0 - call unexpected_fpu_exception[],0 - jmp ret_from_exception - - .size fpu_disabled,.-fpu_disabled diff --git a/arch/mn10300/kernel/fpu-nofpu.c b/arch/mn10300/kernel/fpu-nofpu.c deleted file mode 100644 index 8d0e041aa798..000000000000 --- a/arch/mn10300/kernel/fpu-nofpu.c +++ /dev/null @@ -1,31 +0,0 @@ -/* MN10300 FPU management - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/fpu.h> -#include <asm/elf.h> - -/* - * handle an FPU operational exception - * - there's a possibility that if the FPU is asynchronous, the signal might - * be meant for a process other than the current one - */ -asmlinkage -void unexpected_fpu_exception(struct pt_regs *regs, enum exception_code code) -{ - panic("An FPU exception was received, but there's no FPU enabled."); -} - -/* - * fill in the FPU structure for a core dump - */ -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpreg) -{ - return 0; /* not valid */ -} diff --git a/arch/mn10300/kernel/fpu.c b/arch/mn10300/kernel/fpu.c deleted file mode 100644 index 50ce7b447fed..000000000000 --- a/arch/mn10300/kernel/fpu.c +++ /dev/null @@ -1,177 +0,0 @@ -/* MN10300 FPU management - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/uaccess.h> -#include <linux/sched/signal.h> - -#include <asm/fpu.h> -#include <asm/elf.h> -#include <asm/exceptions.h> - -#ifdef CONFIG_LAZY_SAVE_FPU -struct task_struct *fpu_state_owner; -#endif - -/* - * error functions in FPU disabled exception - */ -asmlinkage void fpu_disabled_in_kernel(struct pt_regs *regs) -{ - die_if_no_fixup("An FPU Disabled exception happened in kernel space\n", - regs, EXCEP_FPU_DISABLED); -} - -/* - * handle an FPU operational exception - * - there's a possibility that if the FPU is asynchronous, the signal might - * be meant for a process other than the current one - */ -asmlinkage void fpu_exception(struct pt_regs *regs, enum exception_code code) -{ - struct task_struct *tsk = current; - siginfo_t info; - u32 fpcr; - - if (!user_mode(regs)) - die_if_no_fixup("An FPU Operation exception happened in" - " kernel space\n", - regs, code); - - if (!is_using_fpu(tsk)) - die_if_no_fixup("An FPU Operation exception happened," - " but the FPU is not in use", - regs, code); - - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_addr = (void *) tsk->thread.uregs->pc; - info.si_code = FPE_FLTINV; - - unlazy_fpu(tsk); - - fpcr = tsk->thread.fpu_state.fpcr; - - if (fpcr & FPCR_EC_Z) - info.si_code = FPE_FLTDIV; - else if (fpcr & FPCR_EC_O) - info.si_code = FPE_FLTOVF; - else if (fpcr & FPCR_EC_U) - info.si_code = FPE_FLTUND; - else if (fpcr & FPCR_EC_I) - info.si_code = FPE_FLTRES; - - force_sig_info(SIGFPE, &info, tsk); -} - -/* - * save the FPU state to a signal context - */ -int fpu_setup_sigcontext(struct fpucontext *fpucontext) -{ - struct task_struct *tsk = current; - - if (!is_using_fpu(tsk)) - return 0; - - /* transfer the current FPU state to memory and cause fpu_init() to be - * triggered by the next attempted FPU operation by the current - * process. - */ - preempt_disable(); - -#ifndef CONFIG_LAZY_SAVE_FPU - if (tsk->thread.fpu_flags & THREAD_HAS_FPU) { - fpu_save(&tsk->thread.fpu_state); - tsk->thread.uregs->epsw &= ~EPSW_FE; - tsk->thread.fpu_flags &= ~THREAD_HAS_FPU; - } -#else /* !CONFIG_LAZY_SAVE_FPU */ - if (fpu_state_owner == tsk) { - fpu_save(&tsk->thread.fpu_state); - fpu_state_owner->thread.uregs->epsw &= ~EPSW_FE; - fpu_state_owner = NULL; - } -#endif /* !CONFIG_LAZY_SAVE_FPU */ - - preempt_enable(); - - /* we no longer have a valid current FPU state */ - clear_using_fpu(tsk); - - /* transfer the saved FPU state onto the userspace stack */ - if (copy_to_user(fpucontext, - &tsk->thread.fpu_state, - min(sizeof(struct fpu_state_struct), - sizeof(struct fpucontext)))) - return -1; - - return 1; -} - -/* - * kill a process's FPU state during restoration after signal handling - */ -void fpu_kill_state(struct task_struct *tsk) -{ - /* disown anything left in the FPU */ - preempt_disable(); - -#ifndef CONFIG_LAZY_SAVE_FPU - if (tsk->thread.fpu_flags & THREAD_HAS_FPU) { - tsk->thread.uregs->epsw &= ~EPSW_FE; - tsk->thread.fpu_flags &= ~THREAD_HAS_FPU; - } -#else /* !CONFIG_LAZY_SAVE_FPU */ - if (fpu_state_owner == tsk) { - fpu_state_owner->thread.uregs->epsw &= ~EPSW_FE; - fpu_state_owner = NULL; - } -#endif /* !CONFIG_LAZY_SAVE_FPU */ - - preempt_enable(); - - /* we no longer have a valid current FPU state */ - clear_using_fpu(tsk); -} - -/* - * restore the FPU state from a signal context - */ -int fpu_restore_sigcontext(struct fpucontext *fpucontext) -{ - struct task_struct *tsk = current; - int ret; - - /* load up the old FPU state */ - ret = copy_from_user(&tsk->thread.fpu_state, fpucontext, - min(sizeof(struct fpu_state_struct), - sizeof(struct fpucontext))); - if (!ret) - set_using_fpu(tsk); - - return ret; -} - -/* - * fill in the FPU structure for a core dump - */ -int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpreg) -{ - struct task_struct *tsk = current; - int fpvalid; - - fpvalid = is_using_fpu(tsk); - if (fpvalid) { - unlazy_fpu(tsk); - memcpy(fpreg, &tsk->thread.fpu_state, sizeof(*fpreg)); - } - - return fpvalid; -} diff --git a/arch/mn10300/kernel/gdb-io-serial-low.S b/arch/mn10300/kernel/gdb-io-serial-low.S deleted file mode 100644 index b1d0152e96cb..000000000000 --- a/arch/mn10300/kernel/gdb-io-serial-low.S +++ /dev/null @@ -1,91 +0,0 @@ -############################################################################### -# -# 16550 serial Rx interrupt handler for gdbstub I/O -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/cpu-regs.h> -#include <asm/thread_info.h> -#include <asm/frame.inc> -#include <asm/intctl-regs.h> -#include <asm/irqflags.h> -#include <unit/serial.h> - - .text - -############################################################################### -# -# GDB stub serial receive interrupt entry point -# - intended to run at interrupt priority 0 -# -############################################################################### - .globl gdbstub_io_rx_handler - .type gdbstub_io_rx_handler,@function -gdbstub_io_rx_handler: - movm [d2,d3,a2,a3],(sp) - -#if 1 - movbu (GDBPORT_SERIAL_IIR),d2 -#endif - - mov (gdbstub_rx_inp),a3 -gdbstub_io_rx_more: - mov a3,a2 - add 2,a3 - and 0x00000fff,a3 - mov (gdbstub_rx_outp),d3 - cmp a3,d3 - beq gdbstub_io_rx_overflow - - movbu (GDBPORT_SERIAL_LSR),d3 - btst UART_LSR_DR,d3 - beq gdbstub_io_rx_done - movbu (GDBPORT_SERIAL_RX),d2 - movbu d3,(gdbstub_rx_buffer+1,a2) - movbu d2,(gdbstub_rx_buffer,a2) - mov a3,(gdbstub_rx_inp) - bra gdbstub_io_rx_more - -gdbstub_io_rx_done: - mov GxICR_DETECT,d2 - movbu d2,(XIRQxICR(GDBPORT_SERIAL_IRQ)) # ACK the interrupt - movhu (XIRQxICR(GDBPORT_SERIAL_IRQ)),d2 # flush - movm (sp),[d2,d3,a2,a3] - bset 0x01,(gdbstub_busy) - beq gdbstub_io_rx_enter - rti - -gdbstub_io_rx_overflow: - bset 0x01,(gdbstub_rx_overflow) - bra gdbstub_io_rx_done - -gdbstub_io_rx_enter: - LOCAL_CHANGE_INTR_MASK_LEVEL(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL+1)) - add -4,sp - SAVE_ALL - - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - mov 0x280,d1 - - mov fp,d0 - call gdbstub_rx_irq[],0 # gdbstub_rx_irq(regs,excep) - - LOCAL_CLI - bclr 0x01,(gdbstub_busy) - - .globl gdbstub_return -gdbstub_return: - RESTORE_ALL - - .size gdbstub_io_rx_handler,.-gdbstub_io_rx_handler diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c deleted file mode 100644 index df51242744cc..000000000000 --- a/arch/mn10300/kernel/gdb-io-serial.c +++ /dev/null @@ -1,174 +0,0 @@ -/* 16550 serial driver for gdbstub I/O - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/console.h> -#include <linux/init.h> -#include <linux/nmi.h> - -#include <asm/pgtable.h> -#include <asm/gdb-stub.h> -#include <asm/exceptions.h> -#include <asm/serial-regs.h> -#include <unit/serial.h> -#include <asm/smp.h> - -/* - * initialise the GDB stub - */ -void gdbstub_io_init(void) -{ - u16 tmp; - - /* set up the serial port */ - GDBPORT_SERIAL_LCR = UART_LCR_WLEN8; /* 1N8 */ - GDBPORT_SERIAL_FCR = (UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | - UART_FCR_CLEAR_XMIT); - - FLOWCTL_CLEAR(DTR); - FLOWCTL_SET(RTS); - - gdbstub_io_set_baud(115200); - - /* we want to get serial receive interrupts */ - XIRQxICR(GDBPORT_SERIAL_IRQ) = 0; - tmp = XIRQxICR(GDBPORT_SERIAL_IRQ); - -#if CONFIG_GDBSTUB_IRQ_LEVEL == 0 - IVAR0 = EXCEP_IRQ_LEVEL0; -#elif CONFIG_GDBSTUB_IRQ_LEVEL == 1 - IVAR1 = EXCEP_IRQ_LEVEL1; -#elif CONFIG_GDBSTUB_IRQ_LEVEL == 2 - IVAR2 = EXCEP_IRQ_LEVEL2; -#elif CONFIG_GDBSTUB_IRQ_LEVEL == 3 - IVAR3 = EXCEP_IRQ_LEVEL3; -#elif CONFIG_GDBSTUB_IRQ_LEVEL == 4 - IVAR4 = EXCEP_IRQ_LEVEL4; -#elif CONFIG_GDBSTUB_IRQ_LEVEL == 5 - IVAR5 = EXCEP_IRQ_LEVEL5; -#else -#error "Unknown irq level for gdbstub." -#endif - - set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_GDBSTUB_IRQ_LEVEL), - gdbstub_io_rx_handler); - - XIRQxICR(GDBPORT_SERIAL_IRQ) &= ~GxICR_REQUEST; - XIRQxICR(GDBPORT_SERIAL_IRQ) = - GxICR_ENABLE | NUM2GxICR_LEVEL(CONFIG_GDBSTUB_IRQ_LEVEL); - tmp = XIRQxICR(GDBPORT_SERIAL_IRQ); - - GDBPORT_SERIAL_IER = UART_IER_RDI | UART_IER_RLSI; - - /* permit level 0 IRQs to take place */ - arch_local_change_intr_mask_level( - NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); -} - -/* - * set up the GDB stub serial port baud rate timers - */ -void gdbstub_io_set_baud(unsigned baud) -{ - unsigned value; - u8 lcr; - - value = 18432000 / 16 / baud; - - lcr = GDBPORT_SERIAL_LCR; - GDBPORT_SERIAL_LCR |= UART_LCR_DLAB; - GDBPORT_SERIAL_DLL = value & 0xff; - GDBPORT_SERIAL_DLM = (value >> 8) & 0xff; - GDBPORT_SERIAL_LCR = lcr; -} - -/* - * wait for a character to come from the debugger - */ -int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) -{ - unsigned ix; - u8 ch, st; -#if defined(CONFIG_MN10300_WD_TIMER) - int cpu; -#endif - - *_ch = 0xff; - - if (gdbstub_rx_unget) { - *_ch = gdbstub_rx_unget; - gdbstub_rx_unget = 0; - return 0; - } - - try_again: - /* pull chars out of the buffer */ - ix = gdbstub_rx_outp; - barrier(); - if (ix == gdbstub_rx_inp) { - if (nonblock) - return -EAGAIN; -#ifdef CONFIG_MN10300_WD_TIMER - for (cpu = 0; cpu < NR_CPUS; cpu++) - watchdog_alert_counter[cpu] = 0; -#endif - goto try_again; - } - - ch = gdbstub_rx_buffer[ix++]; - st = gdbstub_rx_buffer[ix++]; - barrier(); - gdbstub_rx_outp = ix & 0x00000fff; - - if (st & UART_LSR_BI) { - gdbstub_proto("### GDB Rx Break Detected ###\n"); - return -EINTR; - } else if (st & (UART_LSR_FE | UART_LSR_OE | UART_LSR_PE)) { - gdbstub_proto("### GDB Rx Error (st=%02x) ###\n", st); - return -EIO; - } else { - gdbstub_proto("### GDB Rx %02x (st=%02x) ###\n", ch, st); - *_ch = ch & 0x7f; - return 0; - } -} - -/* - * send a character to the debugger - */ -void gdbstub_io_tx_char(unsigned char ch) -{ - FLOWCTL_SET(DTR); - LSR_WAIT_FOR(THRE); - /* FLOWCTL_WAIT_FOR(CTS); */ - - if (ch == 0x0a) { - GDBPORT_SERIAL_TX = 0x0d; - LSR_WAIT_FOR(THRE); - /* FLOWCTL_WAIT_FOR(CTS); */ - } - GDBPORT_SERIAL_TX = ch; - - FLOWCTL_CLEAR(DTR); -} - -/* - * send a character to the debugger - */ -void gdbstub_io_tx_flush(void) -{ - LSR_WAIT_FOR(TEMT); - LSR_WAIT_FOR(THRE); - FLOWCTL_CLEAR(DTR); -} diff --git a/arch/mn10300/kernel/gdb-io-ttysm-low.S b/arch/mn10300/kernel/gdb-io-ttysm-low.S deleted file mode 100644 index 060b7cca735d..000000000000 --- a/arch/mn10300/kernel/gdb-io-ttysm-low.S +++ /dev/null @@ -1,93 +0,0 @@ -############################################################################### -# -# MN10300 On-chip serial Rx interrupt handler for GDB stub I/O -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/thread_info.h> -#include <asm/cpu-regs.h> -#include <asm/frame.inc> -#include <asm/intctl-regs.h> -#include <unit/serial.h> -#include "mn10300-serial.h" - - .text - -############################################################################### -# -# GDB stub serial receive interrupt entry point -# - intended to run at interrupt priority 0 -# -############################################################################### - .globl gdbstub_io_rx_handler - .type gdbstub_io_rx_handler,@function -gdbstub_io_rx_handler: - movm [d2,d3,a2,a3],(sp) - - mov (gdbstub_rx_inp),a3 -gdbstub_io_rx_more: - mov a3,a2 - add 2,a3 - and PAGE_SIZE_asm-1,a3 - mov (gdbstub_rx_outp),d3 - cmp a3,d3 - beq gdbstub_io_rx_overflow - - movbu (SCgSTR),d3 - btst SC01STR_RBF,d3 - beq gdbstub_io_rx_done - movbu (SCgRXB),d2 - movbu d3,(gdbstub_rx_buffer+1,a2) - movbu d2,(gdbstub_rx_buffer,a2) - mov a3,(gdbstub_rx_inp) - bra gdbstub_io_rx_more - -gdbstub_io_rx_done: - mov GxICR_DETECT,d2 - movbu d2,(GxICR(SCgRXIRQ)) # ACK the interrupt - movhu (GxICR(SCgRXIRQ)),d2 # flush - - movm (sp),[d2,d3,a2,a3] - bset 0x01,(gdbstub_busy) - beq gdbstub_io_rx_enter - rti - -gdbstub_io_rx_overflow: - bset 0x01,(gdbstub_rx_overflow) - bra gdbstub_io_rx_done - -############################################################################### -# -# debugging interrupt - enter the GDB stub proper -# -############################################################################### -gdbstub_io_rx_enter: - or EPSW_IE|EPSW_IM_1,epsw - add -4,sp - SAVE_ALL - - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - mov 0x280,d1 - - mov fp,d0 - call gdbstub_rx_irq[],0 # gdbstub_io_rx_irq(regs,excep) - - and ~EPSW_IE,epsw - bclr 0x01,(gdbstub_busy) - - .globl gdbstub_return -gdbstub_return: - RESTORE_ALL - - .size gdbstub_io_rx_handler,.-gdbstub_io_rx_handler diff --git a/arch/mn10300/kernel/gdb-io-ttysm.c b/arch/mn10300/kernel/gdb-io-ttysm.c deleted file mode 100644 index caae8cac9db1..000000000000 --- a/arch/mn10300/kernel/gdb-io-ttysm.c +++ /dev/null @@ -1,303 +0,0 @@ -/* MN10300 On-chip serial driver for gdbstub I/O - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/console.h> -#include <linux/init.h> -#include <linux/tty.h> -#include <asm/pgtable.h> -#include <asm/gdb-stub.h> -#include <asm/exceptions.h> -#include <unit/clock.h> -#include "mn10300-serial.h" - -#if defined(CONFIG_GDBSTUB_ON_TTYSM0) -struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif0; -#elif defined(CONFIG_GDBSTUB_ON_TTYSM1) -struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif1; -#else -struct mn10300_serial_port *const gdbstub_port = &mn10300_serial_port_sif2; -#endif - - -/* - * initialise the GDB stub I/O routines - */ -void __init gdbstub_io_init(void) -{ - uint16_t scxctr; - int tmp; - - switch (gdbstub_port->clock_src) { - case MNSCx_CLOCK_SRC_IOCLK: - gdbstub_port->ioclk = MN10300_IOCLK; - break; - -#ifdef MN10300_IOBCLK - case MNSCx_CLOCK_SRC_IOBCLK: - gdbstub_port->ioclk = MN10300_IOBCLK; - break; -#endif - default: - BUG(); - } - - /* set up the serial port */ - gdbstub_io_set_baud(115200); - - /* we want to get serial receive interrupts */ - set_intr_level(gdbstub_port->rx_irq, - NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL)); - set_intr_level(gdbstub_port->tx_irq, - NUM2GxICR_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL)); - set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_DEBUGGER_IRQ_LEVEL), - gdbstub_io_rx_handler); - - *gdbstub_port->rx_icr |= GxICR_ENABLE; - tmp = *gdbstub_port->rx_icr; - - /* enable the device */ - scxctr = SC01CTR_CLN_8BIT; /* 1N8 */ - switch (gdbstub_port->div_timer) { - case MNSCx_DIV_TIMER_16BIT: - scxctr |= SC0CTR_CK_TM8UFLOW_8; /* == SC1CTR_CK_TM9UFLOW_8 - == SC2CTR_CK_TM10UFLOW_8 */ - break; - - case MNSCx_DIV_TIMER_8BIT: - scxctr |= SC0CTR_CK_TM2UFLOW_8; - break; - } - - scxctr |= SC01CTR_TXE | SC01CTR_RXE; - - *gdbstub_port->_control = scxctr; - tmp = *gdbstub_port->_control; - - /* permit level 0 IRQs only */ - arch_local_change_intr_mask_level( - NUM2EPSW_IM(CONFIG_DEBUGGER_IRQ_LEVEL + 1)); -} - -/* - * set up the GDB stub serial port baud rate timers - */ -void gdbstub_io_set_baud(unsigned baud) -{ - const unsigned bits = 10; /* 1 [start] + 8 [data] + 0 [parity] + - * 1 [stop] */ - unsigned long ioclk = gdbstub_port->ioclk; - unsigned xdiv, tmp; - uint16_t tmxbr; - uint8_t tmxmd; - - if (!baud) { - baud = 9600; - } else if (baud == 134) { - baud = 269; /* 134 is really 134.5 */ - xdiv = 2; - } - -try_alternative: - xdiv = 1; - - switch (gdbstub_port->div_timer) { - case MNSCx_DIV_TIMER_16BIT: - tmxmd = TM8MD_SRC_IOCLK; - tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - - tmxmd = TM8MD_SRC_IOCLK_8; - tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - - tmxmd = TM8MD_SRC_IOCLK_32; - tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - - break; - - case MNSCx_DIV_TIMER_8BIT: - tmxmd = TM2MD_SRC_IOCLK; - tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - - tmxmd = TM2MD_SRC_IOCLK_8; - tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - - tmxmd = TM2MD_SRC_IOCLK_32; - tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - break; - } - - /* as a last resort, if the quotient is zero, default to 9600 bps */ - baud = 9600; - goto try_alternative; - -timer_okay: - gdbstub_port->uart.timeout = (2 * bits * HZ) / baud; - gdbstub_port->uart.timeout += HZ / 50; - - /* set the timer to produce the required baud rate */ - switch (gdbstub_port->div_timer) { - case MNSCx_DIV_TIMER_16BIT: - *gdbstub_port->_tmxmd = 0; - *gdbstub_port->_tmxbr = tmxbr; - *gdbstub_port->_tmxmd = TM8MD_INIT_COUNTER; - *gdbstub_port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE; - break; - - case MNSCx_DIV_TIMER_8BIT: - *gdbstub_port->_tmxmd = 0; - *(volatile u8 *) gdbstub_port->_tmxbr = (u8)tmxbr; - *gdbstub_port->_tmxmd = TM2MD_INIT_COUNTER; - *gdbstub_port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE; - break; - } -} - -/* - * wait for a character to come from the debugger - */ -int gdbstub_io_rx_char(unsigned char *_ch, int nonblock) -{ - unsigned ix; - u8 ch, st; -#if defined(CONFIG_MN10300_WD_TIMER) - int cpu; -#endif - - *_ch = 0xff; - - if (gdbstub_rx_unget) { - *_ch = gdbstub_rx_unget; - gdbstub_rx_unget = 0; - return 0; - } - -try_again: - /* pull chars out of the buffer */ - ix = gdbstub_rx_outp; - barrier(); - if (ix == gdbstub_rx_inp) { - if (nonblock) - return -EAGAIN; -#ifdef CONFIG_MN10300_WD_TIMER - for (cpu = 0; cpu < NR_CPUS; cpu++) - watchdog_alert_counter[cpu] = 0; -#endif - goto try_again; - } - - ch = gdbstub_rx_buffer[ix++]; - st = gdbstub_rx_buffer[ix++]; - barrier(); - gdbstub_rx_outp = ix & (PAGE_SIZE - 1); - - st &= SC01STR_RXF | SC01STR_RBF | SC01STR_FEF | SC01STR_PEF | - SC01STR_OEF; - - /* deal with what we've got - * - note that the UART doesn't do BREAK-detection for us - */ - if (st & SC01STR_FEF && ch == 0) { - switch (gdbstub_port->rx_brk) { - case 0: gdbstub_port->rx_brk = 1; goto try_again; - case 1: gdbstub_port->rx_brk = 2; goto try_again; - case 2: - gdbstub_port->rx_brk = 3; - gdbstub_proto("### GDB MNSERIAL Rx Break Detected" - " ###\n"); - return -EINTR; - default: - goto try_again; - } - } else if (st & SC01STR_FEF) { - if (gdbstub_port->rx_brk) - goto try_again; - - gdbstub_proto("### GDB MNSERIAL Framing Error ###\n"); - return -EIO; - } else if (st & SC01STR_OEF) { - if (gdbstub_port->rx_brk) - goto try_again; - - gdbstub_proto("### GDB MNSERIAL Overrun Error ###\n"); - return -EIO; - } else if (st & SC01STR_PEF) { - if (gdbstub_port->rx_brk) - goto try_again; - - gdbstub_proto("### GDB MNSERIAL Parity Error ###\n"); - return -EIO; - } else { - /* look for the tail-end char on a break run */ - if (gdbstub_port->rx_brk == 3) { - switch (ch) { - case 0xFF: - case 0xFE: - case 0xFC: - case 0xF8: - case 0xF0: - case 0xE0: - case 0xC0: - case 0x80: - case 0x00: - gdbstub_port->rx_brk = 0; - goto try_again; - default: - break; - } - } - - gdbstub_port->rx_brk = 0; - gdbstub_io("### GDB Rx %02x (st=%02x) ###\n", ch, st); - *_ch = ch & 0x7f; - return 0; - } -} - -/* - * send a character to the debugger - */ -void gdbstub_io_tx_char(unsigned char ch) -{ - while (*gdbstub_port->_status & SC01STR_TBF) - continue; - - if (ch == 0x0a) { - *(u8 *) gdbstub_port->_txb = 0x0d; - while (*gdbstub_port->_status & SC01STR_TBF) - continue; - } - - *(u8 *) gdbstub_port->_txb = ch; -} - -/* - * flush the transmission buffers - */ -void gdbstub_io_tx_flush(void) -{ - while (*gdbstub_port->_status & (SC01STR_TBF | SC01STR_TXF)) - continue; -} diff --git a/arch/mn10300/kernel/gdb-low.S b/arch/mn10300/kernel/gdb-low.S deleted file mode 100644 index e2725552cd82..000000000000 --- a/arch/mn10300/kernel/gdb-low.S +++ /dev/null @@ -1,115 +0,0 @@ -############################################################################### -# -# MN10300 Low-level gdbstub routines -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/cache.h> -#include <asm/cpu-regs.h> -#include <asm/exceptions.h> -#include <asm/frame.inc> -#include <asm/serial-regs.h> - - .text - -############################################################################### -# -# GDB stub read memory with guard -# - D0 holds the memory address to read -# - D1 holds the address to store the byte into -# -############################################################################### - .globl gdbstub_read_byte_guard - .globl gdbstub_read_byte_cont -ENTRY(gdbstub_read_byte) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_read_byte_guard: - movbu (a0),d1 -gdbstub_read_byte_cont: - movbu d1,(a1) - ret [],0 - - .globl gdbstub_read_word_guard - .globl gdbstub_read_word_cont -ENTRY(gdbstub_read_word) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_read_word_guard: - movhu (a0),d1 -gdbstub_read_word_cont: - movhu d1,(a1) - ret [],0 - - .globl gdbstub_read_dword_guard - .globl gdbstub_read_dword_cont -ENTRY(gdbstub_read_dword) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_read_dword_guard: - mov (a0),d1 -gdbstub_read_dword_cont: - mov d1,(a1) - ret [],0 - -############################################################################### -# -# GDB stub write memory with guard -# - D0 holds the byte to store -# - D1 holds the memory address to write -# -############################################################################### - .globl gdbstub_write_byte_guard - .globl gdbstub_write_byte_cont -ENTRY(gdbstub_write_byte) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_write_byte_guard: - movbu a0,(a1) -gdbstub_write_byte_cont: - ret [],0 - - .globl gdbstub_write_word_guard - .globl gdbstub_write_word_cont -ENTRY(gdbstub_write_word) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_write_word_guard: - movhu a0,(a1) -gdbstub_write_word_cont: - ret [],0 - - .globl gdbstub_write_dword_guard - .globl gdbstub_write_dword_cont -ENTRY(gdbstub_write_dword) - mov d0,a0 - mov d1,a1 - clr d0 -gdbstub_write_dword_guard: - mov a0,(a1) -gdbstub_write_dword_cont: - ret [],0 - -############################################################################### -# -# GDB stub BUG() trap -# -############################################################################### -ENTRY(__gdbstub_bug_trap) - .byte 0xF7,0xF7 # don't use 0xFF as the JTAG unit preempts that - ret [],0 diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c deleted file mode 100644 index 3399d5699804..000000000000 --- a/arch/mn10300/kernel/gdb-stub.c +++ /dev/null @@ -1,1924 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* MN10300 GDB stub - * - * Originally written by Glenn Engel, Lake Stevens Instrument Division - * - * Contributed by HP Systems - * - * Modified for SPARC by Stu Grossman, Cygnus Support. - * - * Modified for Linux/MIPS (and MIPS in general) by Andreas Busse - * Send complaints, suggestions etc. to <andy@waldorf-gmbh.de> - * - * Copyright (C) 1995 Andreas Busse - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified for Linux/mn10300 by David Howells <dhowells@redhat.com> - */ - -/* - * To enable debugger support, two things need to happen. One, a - * call to set_debug_traps() is necessary in order to allow any breakpoints - * or error conditions to be properly intercepted and reported to gdb. - * Two, a breakpoint needs to be generated to begin communication. This - * is most easily accomplished by a call to breakpoint(). Breakpoint() - * simulates a breakpoint by executing a BREAK instruction. - * - * - * The following gdb commands are supported: - * - * command function Return value - * - * g return the value of the CPU registers hex data or ENN - * G set the value of the CPU registers OK or ENN - * - * mAA..AA,LLLL Read LLLL bytes at address AA..AA hex data or ENN - * MAA..AA,LLLL: Write LLLL bytes at address AA.AA OK or ENN - * - * c Resume at current address SNN ( signal NN) - * cAA..AA Continue at address AA..AA SNN - * - * s Step one instruction SNN - * sAA..AA Step one instruction from AA..AA SNN - * - * k kill - * - * ? What was the last sigval ? SNN (signal NN) - * - * bBB..BB Set baud rate to BB..BB OK or BNN, then sets - * baud rate - * - * All commands and responses are sent with a packet which includes a - * checksum. A packet consists of - * - * $<packet info>#<checksum>. - * - * where - * <packet info> :: <characters representing the command or response> - * <checksum> :: < two hex digits computed as modulo 256 sum of <packetinfo>> - * - * When a packet is received, it is first acknowledged with either '+' or '-'. - * '+' indicates a successful transfer. '-' indicates a failed transfer. - * - * Example: - * - * Host: Reply: - * $m0,10#2a +$00010203040506070809101112131415#42 - * - * - * ============== - * MORE EXAMPLES: - * ============== - * - * For reference -- the following are the steps that one - * company took (RidgeRun Inc) to get remote gdb debugging - * going. In this scenario the host machine was a PC and the - * target platform was a Galileo EVB64120A MIPS evaluation - * board. - * - * Step 1: - * First download gdb-5.0.tar.gz from the internet. - * and then build/install the package. - * - * Example: - * $ tar zxf gdb-5.0.tar.gz - * $ cd gdb-5.0 - * $ ./configure --target=am33_2.0-linux-gnu - * $ make - * $ install - * am33_2.0-linux-gnu-gdb - * - * Step 2: - * Configure linux for remote debugging and build it. - * - * Example: - * $ cd ~/linux - * $ make menuconfig <go to "Kernel Hacking" and turn on remote debugging> - * $ make dep; make vmlinux - * - * Step 3: - * Download the kernel to the remote target and start - * the kernel running. It will promptly halt and wait - * for the host gdb session to connect. It does this - * since the "Kernel Hacking" option has defined - * CONFIG_REMOTE_DEBUG which in turn enables your calls - * to: - * set_debug_traps(); - * breakpoint(); - * - * Step 4: - * Start the gdb session on the host. - * - * Example: - * $ am33_2.0-linux-gnu-gdb vmlinux - * (gdb) set remotebaud 115200 - * (gdb) target remote /dev/ttyS1 - * ...at this point you are connected to - * the remote target and can use gdb - * in the normal fasion. Setting - * breakpoints, single stepping, - * printing variables, etc. - * - */ - -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/console.h> -#include <linux/init.h> -#include <linux/bug.h> - -#include <asm/pgtable.h> -#include <asm/gdb-stub.h> -#include <asm/exceptions.h> -#include <asm/debugger.h> -#include <asm/serial-regs.h> -#include <asm/busctl-regs.h> -#include <unit/leds.h> -#include <unit/serial.h> - -/* define to use F7F7 rather than FF which is subverted by JTAG debugger */ -#undef GDBSTUB_USE_F7F7_AS_BREAKPOINT - -/* - * BUFMAX defines the maximum number of characters in inbound/outbound buffers - * at least NUMREGBYTES*2 are needed for register packets - */ -#define BUFMAX 2048 - -static const char gdbstub_banner[] = - "Linux/MN10300 GDB Stub (c) RedHat 2007\n"; - -u8 gdbstub_rx_buffer[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); -u32 gdbstub_rx_inp; -u32 gdbstub_rx_outp; -u8 gdbstub_busy; -u8 gdbstub_rx_overflow; -u8 gdbstub_rx_unget; - -static u8 gdbstub_flush_caches; -static char input_buffer[BUFMAX]; -static char output_buffer[BUFMAX]; -static char trans_buffer[BUFMAX]; - -struct gdbstub_bkpt { - u8 *addr; /* address of breakpoint */ - u8 len; /* size of breakpoint */ - u8 origbytes[7]; /* original bytes */ -}; - -static struct gdbstub_bkpt gdbstub_bkpts[256]; - -/* - * local prototypes - */ -static void getpacket(char *buffer); -static int putpacket(char *buffer); -static int computeSignal(enum exception_code excep); -static int hex(unsigned char ch); -static int hexToInt(char **ptr, int *intValue); -static unsigned char *mem2hex(const void *mem, char *buf, int count, - int may_fault); -static const char *hex2mem(const char *buf, void *_mem, int count, - int may_fault); - -/* - * Convert ch from a hex digit to an int - */ -static int hex(unsigned char ch) -{ - if (ch >= 'a' && ch <= 'f') - return ch - 'a' + 10; - if (ch >= '0' && ch <= '9') - return ch - '0'; - if (ch >= 'A' && ch <= 'F') - return ch - 'A' + 10; - return -1; -} - -#ifdef CONFIG_GDBSTUB_DEBUGGING - -void debug_to_serial(const char *p, int n) -{ - __debug_to_serial(p, n); - /* gdbstub_console_write(NULL, p, n); */ -} - -void gdbstub_printk(const char *fmt, ...) -{ - va_list args; - int len; - - /* Emit the output into the temporary buffer */ - va_start(args, fmt); - len = vsnprintf(trans_buffer, sizeof(trans_buffer), fmt, args); - va_end(args); - debug_to_serial(trans_buffer, len); -} - -#endif - -static inline char *gdbstub_strcpy(char *dst, const char *src) -{ - int loop = 0; - while ((dst[loop] = src[loop])) - loop++; - return dst; -} - -/* - * scan for the sequence $<data>#<checksum> - */ -static void getpacket(char *buffer) -{ - unsigned char checksum; - unsigned char xmitcsum; - unsigned char ch; - int count, i, ret, error; - - for (;;) { - /* - * wait around for the start character, - * ignore all other characters - */ - do { - gdbstub_io_rx_char(&ch, 0); - } while (ch != '$'); - - checksum = 0; - xmitcsum = -1; - count = 0; - error = 0; - - /* - * now, read until a # or end of buffer is found - */ - while (count < BUFMAX) { - ret = gdbstub_io_rx_char(&ch, 0); - if (ret < 0) - error = ret; - - if (ch == '#') - break; - checksum += ch; - buffer[count] = ch; - count++; - } - - if (error == -EIO) { - gdbstub_proto("### GDB Rx Error - Skipping packet" - " ###\n"); - gdbstub_proto("### GDB Tx NAK\n"); - gdbstub_io_tx_char('-'); - continue; - } - - if (count >= BUFMAX || error) - continue; - - buffer[count] = 0; - - /* read the checksum */ - ret = gdbstub_io_rx_char(&ch, 0); - if (ret < 0) - error = ret; - xmitcsum = hex(ch) << 4; - - ret = gdbstub_io_rx_char(&ch, 0); - if (ret < 0) - error = ret; - xmitcsum |= hex(ch); - - if (error) { - if (error == -EIO) - gdbstub_io("### GDB Rx Error -" - " Skipping packet\n"); - gdbstub_io("### GDB Tx NAK\n"); - gdbstub_io_tx_char('-'); - continue; - } - - /* check the checksum */ - if (checksum != xmitcsum) { - gdbstub_io("### GDB Tx NAK\n"); - gdbstub_io_tx_char('-'); /* failed checksum */ - continue; - } - - gdbstub_proto("### GDB Rx '$%s#%02x' ###\n", buffer, checksum); - gdbstub_io("### GDB Tx ACK\n"); - gdbstub_io_tx_char('+'); /* successful transfer */ - - /* - * if a sequence char is present, - * reply the sequence ID - */ - if (buffer[2] == ':') { - gdbstub_io_tx_char(buffer[0]); - gdbstub_io_tx_char(buffer[1]); - - /* - * remove sequence chars from buffer - */ - count = 0; - while (buffer[count]) - count++; - for (i = 3; i <= count; i++) - buffer[i - 3] = buffer[i]; - } - - break; - } -} - -/* - * send the packet in buffer. - * - return 0 if successfully ACK'd - * - return 1 if abandoned due to new incoming packet - */ -static int putpacket(char *buffer) -{ - unsigned char checksum; - unsigned char ch; - int count; - - /* - * $<packet info>#<checksum>. - */ - gdbstub_proto("### GDB Tx $'%s'#?? ###\n", buffer); - - do { - gdbstub_io_tx_char('$'); - checksum = 0; - count = 0; - - while ((ch = buffer[count]) != 0) { - gdbstub_io_tx_char(ch); - checksum += ch; - count += 1; - } - - gdbstub_io_tx_char('#'); - gdbstub_io_tx_char(hex_asc_hi(checksum)); - gdbstub_io_tx_char(hex_asc_lo(checksum)); - - } while (gdbstub_io_rx_char(&ch, 0), - ch == '-' && (gdbstub_io("### GDB Rx NAK\n"), 0), - ch != '-' && ch != '+' && - (gdbstub_io("### GDB Rx ??? %02x\n", ch), 0), - ch != '+' && ch != '$'); - - if (ch == '+') { - gdbstub_io("### GDB Rx ACK\n"); - return 0; - } - - gdbstub_io("### GDB Tx Abandoned\n"); - gdbstub_rx_unget = ch; - return 1; -} - -/* - * While we find nice hex chars, build an int. - * Return number of chars processed. - */ -static int hexToInt(char **ptr, int *intValue) -{ - int numChars = 0; - int hexValue; - - *intValue = 0; - - while (**ptr) { - hexValue = hex(**ptr); - if (hexValue < 0) - break; - - *intValue = (*intValue << 4) | hexValue; - numChars++; - - (*ptr)++; - } - - return (numChars); -} - -#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP -/* - * We single-step by setting breakpoints. When an exception - * is handled, we need to restore the instructions hoisted - * when the breakpoints were set. - * - * This is where we save the original instructions. - */ -static struct gdb_bp_save { - u8 *addr; - u8 opcode[2]; -} step_bp[2]; - -static const unsigned char gdbstub_insn_sizes[256] = -{ - /* 1 2 3 4 5 6 7 8 9 a b c d e f */ - 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */ - 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */ - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */ - 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */ - 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */ - 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */ -}; - -static int __gdbstub_mark_bp(u8 *addr, int ix) -{ - /* vmalloc area */ - if (((u8 *) VMALLOC_START <= addr) && (addr < (u8 *) VMALLOC_END)) - goto okay; - /* SRAM, SDRAM */ - if (((u8 *) 0x80000000UL <= addr) && (addr < (u8 *) 0xa0000000UL)) - goto okay; - return 0; - -okay: - if (gdbstub_read_byte(addr + 0, &step_bp[ix].opcode[0]) < 0 || - gdbstub_read_byte(addr + 1, &step_bp[ix].opcode[1]) < 0) - return 0; - - step_bp[ix].addr = addr; - return 1; -} - -static inline void __gdbstub_restore_bp(void) -{ -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - if (step_bp[0].addr) { - gdbstub_write_byte(step_bp[0].opcode[0], step_bp[0].addr + 0); - gdbstub_write_byte(step_bp[0].opcode[1], step_bp[0].addr + 1); - } - if (step_bp[1].addr) { - gdbstub_write_byte(step_bp[1].opcode[0], step_bp[1].addr + 0); - gdbstub_write_byte(step_bp[1].opcode[1], step_bp[1].addr + 1); - } -#else - if (step_bp[0].addr) - gdbstub_write_byte(step_bp[0].opcode[0], step_bp[0].addr + 0); - if (step_bp[1].addr) - gdbstub_write_byte(step_bp[1].opcode[0], step_bp[1].addr + 0); -#endif - - gdbstub_flush_caches = 1; - - step_bp[0].addr = NULL; - step_bp[0].opcode[0] = 0; - step_bp[0].opcode[1] = 0; - step_bp[1].addr = NULL; - step_bp[1].opcode[0] = 0; - step_bp[1].opcode[1] = 0; -} - -/* - * emulate single stepping by means of breakpoint instructions - */ -static int gdbstub_single_step(struct pt_regs *regs) -{ - unsigned size; - uint32_t x; - uint8_t cur, *pc, *sp; - - step_bp[0].addr = NULL; - step_bp[0].opcode[0] = 0; - step_bp[0].opcode[1] = 0; - step_bp[1].addr = NULL; - step_bp[1].opcode[0] = 0; - step_bp[1].opcode[1] = 0; - x = 0; - - pc = (u8 *) regs->pc; - sp = (u8 *) (regs + 1); - if (gdbstub_read_byte(pc, &cur) < 0) - return -EFAULT; - - gdbstub_bkpt("Single Step from %p { %02x }\n", pc, cur); - - gdbstub_flush_caches = 1; - - size = gdbstub_insn_sizes[cur]; - if (size > 0) { - if (!__gdbstub_mark_bp(pc + size, 0)) - goto fault; - } else { - switch (cur) { - /* Bxx (d8,PC) */ - case 0xc0 ... 0xca: - if (gdbstub_read_byte(pc + 1, (u8 *) &x) < 0) - goto fault; - if (!__gdbstub_mark_bp(pc + 2, 0)) - goto fault; - if ((x < 0 || x > 2) && - !__gdbstub_mark_bp(pc + (s8) x, 1)) - goto fault; - break; - - /* LXX (d8,PC) */ - case 0xd0 ... 0xda: - if (!__gdbstub_mark_bp(pc + 1, 0)) - goto fault; - if (regs->pc != regs->lar && - !__gdbstub_mark_bp((u8 *) regs->lar, 1)) - goto fault; - break; - - /* SETLB - loads the next for bytes into the LIR - * register */ - case 0xdb: - if (!__gdbstub_mark_bp(pc + 1, 0)) - goto fault; - break; - - /* JMP (d16,PC) or CALL (d16,PC) */ - case 0xcc: - case 0xcd: - if (gdbstub_read_byte(pc + 1, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte(pc + 2, ((u8 *) &x) + 1) < 0) - goto fault; - if (!__gdbstub_mark_bp(pc + (s16) x, 0)) - goto fault; - break; - - /* JMP (d32,PC) or CALL (d32,PC) */ - case 0xdc: - case 0xdd: - if (gdbstub_read_byte(pc + 1, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte(pc + 2, ((u8 *) &x) + 1) < 0 || - gdbstub_read_byte(pc + 3, ((u8 *) &x) + 2) < 0 || - gdbstub_read_byte(pc + 4, ((u8 *) &x) + 3) < 0) - goto fault; - if (!__gdbstub_mark_bp(pc + (s32) x, 0)) - goto fault; - break; - - /* RETF */ - case 0xde: - if (!__gdbstub_mark_bp((u8 *) regs->mdr, 0)) - goto fault; - break; - - /* RET */ - case 0xdf: - if (gdbstub_read_byte(pc + 2, (u8 *) &x) < 0) - goto fault; - sp += (s8)x; - if (gdbstub_read_byte(sp + 0, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte(sp + 1, ((u8 *) &x) + 1) < 0 || - gdbstub_read_byte(sp + 2, ((u8 *) &x) + 2) < 0 || - gdbstub_read_byte(sp + 3, ((u8 *) &x) + 3) < 0) - goto fault; - if (!__gdbstub_mark_bp((u8 *) x, 0)) - goto fault; - break; - - case 0xf0: - if (gdbstub_read_byte(pc + 1, &cur) < 0) - goto fault; - - if (cur >= 0xf0 && cur <= 0xf7) { - /* JMP (An) / CALLS (An) */ - switch (cur & 3) { - case 0: x = regs->a0; break; - case 1: x = regs->a1; break; - case 2: x = regs->a2; break; - case 3: x = regs->a3; break; - } - if (!__gdbstub_mark_bp((u8 *) x, 0)) - goto fault; - } else if (cur == 0xfc) { - /* RETS */ - if (gdbstub_read_byte( - sp + 0, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte( - sp + 1, ((u8 *) &x) + 1) < 0 || - gdbstub_read_byte( - sp + 2, ((u8 *) &x) + 2) < 0 || - gdbstub_read_byte( - sp + 3, ((u8 *) &x) + 3) < 0) - goto fault; - if (!__gdbstub_mark_bp((u8 *) x, 0)) - goto fault; - } else if (cur == 0xfd) { - /* RTI */ - if (gdbstub_read_byte( - sp + 4, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte( - sp + 5, ((u8 *) &x) + 1) < 0 || - gdbstub_read_byte( - sp + 6, ((u8 *) &x) + 2) < 0 || - gdbstub_read_byte( - sp + 7, ((u8 *) &x) + 3) < 0) - goto fault; - if (!__gdbstub_mark_bp((u8 *) x, 0)) - goto fault; - } else { - if (!__gdbstub_mark_bp(pc + 2, 0)) - goto fault; - } - - break; - - /* potential 3-byte conditional branches */ - case 0xf8: - if (gdbstub_read_byte(pc + 1, &cur) < 0) - goto fault; - if (!__gdbstub_mark_bp(pc + 3, 0)) - goto fault; - - if (cur >= 0xe8 && cur <= 0xeb) { - if (gdbstub_read_byte( - pc + 2, ((u8 *) &x) + 0) < 0) - goto fault; - if ((x < 0 || x > 3) && - !__gdbstub_mark_bp(pc + (s8) x, 1)) - goto fault; - } - break; - - case 0xfa: - if (gdbstub_read_byte(pc + 1, &cur) < 0) - goto fault; - - if (cur == 0xff) { - /* CALLS (d16,PC) */ - if (gdbstub_read_byte( - pc + 2, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte( - pc + 3, ((u8 *) &x) + 1) < 0) - goto fault; - if (!__gdbstub_mark_bp(pc + (s16) x, 0)) - goto fault; - } else { - if (!__gdbstub_mark_bp(pc + 4, 0)) - goto fault; - } - break; - - case 0xfc: - if (gdbstub_read_byte(pc + 1, &cur) < 0) - goto fault; - if (cur == 0xff) { - /* CALLS (d32,PC) */ - if (gdbstub_read_byte( - pc + 2, ((u8 *) &x) + 0) < 0 || - gdbstub_read_byte( - pc + 3, ((u8 *) &x) + 1) < 0 || - gdbstub_read_byte( - pc + 4, ((u8 *) &x) + 2) < 0 || - gdbstub_read_byte( - pc + 5, ((u8 *) &x) + 3) < 0) - goto fault; - if (!__gdbstub_mark_bp( - pc + (s32) x, 0)) - goto fault; - } else { - if (!__gdbstub_mark_bp( - pc + 6, 0)) - goto fault; - } - break; - - } - } - - gdbstub_bkpt("Step: %02x at %p; %02x at %p\n", - step_bp[0].opcode[0], step_bp[0].addr, - step_bp[1].opcode[0], step_bp[1].addr); - - if (step_bp[0].addr) { -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - if (gdbstub_write_byte(0xF7, step_bp[0].addr + 0) < 0 || - gdbstub_write_byte(0xF7, step_bp[0].addr + 1) < 0) - goto fault; -#else - if (gdbstub_write_byte(0xFF, step_bp[0].addr + 0) < 0) - goto fault; -#endif - } - - if (step_bp[1].addr) { -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - if (gdbstub_write_byte(0xF7, step_bp[1].addr + 0) < 0 || - gdbstub_write_byte(0xF7, step_bp[1].addr + 1) < 0) - goto fault; -#else - if (gdbstub_write_byte(0xFF, step_bp[1].addr + 0) < 0) - goto fault; -#endif - } - - return 0; - - fault: - /* uh-oh - silly address alert, try and restore things */ - __gdbstub_restore_bp(); - return -EFAULT; -} -#endif /* CONFIG_GDBSTUB_ALLOW_SINGLE_STEP */ - -#ifdef CONFIG_GDBSTUB_CONSOLE - -void gdbstub_console_write(struct console *con, const char *p, unsigned n) -{ - static const char gdbstub_cr[] = { 0x0d }; - char outbuf[26]; - int qty; - u8 busy; - - busy = gdbstub_busy; - gdbstub_busy = 1; - - outbuf[0] = 'O'; - - while (n > 0) { - qty = 1; - - while (n > 0 && qty < 20) { - mem2hex(p, outbuf + qty, 2, 0); - qty += 2; - if (*p == 0x0a) { - mem2hex(gdbstub_cr, outbuf + qty, 2, 0); - qty += 2; - } - p++; - n--; - } - - outbuf[qty] = 0; - putpacket(outbuf); - } - - gdbstub_busy = busy; -} - -static kdev_t gdbstub_console_dev(struct console *con) -{ - return MKDEV(1, 3); /* /dev/null */ -} - -static struct console gdbstub_console = { - .name = "gdb", - .write = gdbstub_console_write, - .device = gdbstub_console_dev, - .flags = CON_PRINTBUFFER, - .index = -1, -}; - -#endif - -/* - * Convert the memory pointed to by mem into hex, placing result in buf. - * - if successful, return a pointer to the last char put in buf (NUL) - * - in case of mem fault, return NULL - * may_fault is non-zero if we are reading from arbitrary memory, but is - * currently not used. - */ -static -unsigned char *mem2hex(const void *_mem, char *buf, int count, int may_fault) -{ - const u8 *mem = _mem; - u8 ch[4]; - - if ((u32) mem & 1 && count >= 1) { - if (gdbstub_read_byte(mem, ch) != 0) - return 0; - buf = hex_byte_pack(buf, ch[0]); - mem++; - count--; - } - - if ((u32) mem & 3 && count >= 2) { - if (gdbstub_read_word(mem, ch) != 0) - return 0; - buf = hex_byte_pack(buf, ch[0]); - buf = hex_byte_pack(buf, ch[1]); - mem += 2; - count -= 2; - } - - while (count >= 4) { - if (gdbstub_read_dword(mem, ch) != 0) - return 0; - buf = hex_byte_pack(buf, ch[0]); - buf = hex_byte_pack(buf, ch[1]); - buf = hex_byte_pack(buf, ch[2]); - buf = hex_byte_pack(buf, ch[3]); - mem += 4; - count -= 4; - } - - if (count >= 2) { - if (gdbstub_read_word(mem, ch) != 0) - return 0; - buf = hex_byte_pack(buf, ch[0]); - buf = hex_byte_pack(buf, ch[1]); - mem += 2; - count -= 2; - } - - if (count >= 1) { - if (gdbstub_read_byte(mem, ch) != 0) - return 0; - buf = hex_byte_pack(buf, ch[0]); - } - - *buf = 0; - return buf; -} - -/* - * convert the hex array pointed to by buf into binary to be placed in mem - * return a pointer to the character AFTER the last byte written - * may_fault is non-zero if we are reading from arbitrary memory, but is - * currently not used. - */ -static -const char *hex2mem(const char *buf, void *_mem, int count, int may_fault) -{ - u8 *mem = _mem; - union { - u32 val; - u8 b[4]; - } ch; - - if ((u32) mem & 1 && count >= 1) { - ch.b[0] = hex(*buf++) << 4; - ch.b[0] |= hex(*buf++); - if (gdbstub_write_byte(ch.val, mem) != 0) - return 0; - mem++; - count--; - } - - if ((u32) mem & 3 && count >= 2) { - ch.b[0] = hex(*buf++) << 4; - ch.b[0] |= hex(*buf++); - ch.b[1] = hex(*buf++) << 4; - ch.b[1] |= hex(*buf++); - if (gdbstub_write_word(ch.val, mem) != 0) - return 0; - mem += 2; - count -= 2; - } - - while (count >= 4) { - ch.b[0] = hex(*buf++) << 4; - ch.b[0] |= hex(*buf++); - ch.b[1] = hex(*buf++) << 4; - ch.b[1] |= hex(*buf++); - ch.b[2] = hex(*buf++) << 4; - ch.b[2] |= hex(*buf++); - ch.b[3] = hex(*buf++) << 4; - ch.b[3] |= hex(*buf++); - if (gdbstub_write_dword(ch.val, mem) != 0) - return 0; - mem += 4; - count -= 4; - } - - if (count >= 2) { - ch.b[0] = hex(*buf++) << 4; - ch.b[0] |= hex(*buf++); - ch.b[1] = hex(*buf++) << 4; - ch.b[1] |= hex(*buf++); - if (gdbstub_write_word(ch.val, mem) != 0) - return 0; - mem += 2; - count -= 2; - } - - if (count >= 1) { - ch.b[0] = hex(*buf++) << 4; - ch.b[0] |= hex(*buf++); - if (gdbstub_write_byte(ch.val, mem) != 0) - return 0; - } - - return buf; -} - -/* - * This table contains the mapping between MN10300 exception codes, and - * signals, which are primarily what GDB understands. It also indicates - * which hardware traps we need to commandeer when initializing the stub. - */ -static const struct excep_to_sig_map { - enum exception_code excep; /* MN10300 exception code */ - unsigned char signo; /* Signal that we map this into */ -} excep_to_sig_map[] = { - { EXCEP_ITLBMISS, SIGSEGV }, - { EXCEP_DTLBMISS, SIGSEGV }, - { EXCEP_TRAP, SIGTRAP }, - { EXCEP_ISTEP, SIGTRAP }, - { EXCEP_IBREAK, SIGTRAP }, - { EXCEP_OBREAK, SIGTRAP }, - { EXCEP_UNIMPINS, SIGILL }, - { EXCEP_UNIMPEXINS, SIGILL }, - { EXCEP_MEMERR, SIGSEGV }, - { EXCEP_MISALIGN, SIGSEGV }, - { EXCEP_BUSERROR, SIGBUS }, - { EXCEP_ILLINSACC, SIGSEGV }, - { EXCEP_ILLDATACC, SIGSEGV }, - { EXCEP_IOINSACC, SIGSEGV }, - { EXCEP_PRIVINSACC, SIGSEGV }, - { EXCEP_PRIVDATACC, SIGSEGV }, - { EXCEP_FPU_DISABLED, SIGFPE }, - { EXCEP_FPU_UNIMPINS, SIGFPE }, - { EXCEP_FPU_OPERATION, SIGFPE }, - { EXCEP_WDT, SIGALRM }, - { EXCEP_NMI, SIGQUIT }, - { EXCEP_IRQ_LEVEL0, SIGINT }, - { EXCEP_IRQ_LEVEL1, SIGINT }, - { EXCEP_IRQ_LEVEL2, SIGINT }, - { EXCEP_IRQ_LEVEL3, SIGINT }, - { EXCEP_IRQ_LEVEL4, SIGINT }, - { EXCEP_IRQ_LEVEL5, SIGINT }, - { EXCEP_IRQ_LEVEL6, SIGINT }, - { 0, 0} -}; - -/* - * convert the MN10300 exception code into a UNIX signal number - */ -static int computeSignal(enum exception_code excep) -{ - const struct excep_to_sig_map *map; - - for (map = excep_to_sig_map; map->signo; map++) - if (map->excep == excep) - return map->signo; - - return SIGHUP; /* default for things we don't know about */ -} - -static u32 gdbstub_fpcr, gdbstub_fpufs_array[32]; - -/* - * - */ -static void gdbstub_store_fpu(void) -{ -#ifdef CONFIG_FPU - - asm volatile( - "or %2,epsw\n" -#ifdef CONFIG_MN10300_PROC_MN103E010 - "nop\n" - "nop\n" -#endif - "mov %1, a1\n" - "fmov fs0, (a1+)\n" - "fmov fs1, (a1+)\n" - "fmov fs2, (a1+)\n" - "fmov fs3, (a1+)\n" - "fmov fs4, (a1+)\n" - "fmov fs5, (a1+)\n" - "fmov fs6, (a1+)\n" - "fmov fs7, (a1+)\n" - "fmov fs8, (a1+)\n" - "fmov fs9, (a1+)\n" - "fmov fs10, (a1+)\n" - "fmov fs11, (a1+)\n" - "fmov fs12, (a1+)\n" - "fmov fs13, (a1+)\n" - "fmov fs14, (a1+)\n" - "fmov fs15, (a1+)\n" - "fmov fs16, (a1+)\n" - "fmov fs17, (a1+)\n" - "fmov fs18, (a1+)\n" - "fmov fs19, (a1+)\n" - "fmov fs20, (a1+)\n" - "fmov fs21, (a1+)\n" - "fmov fs22, (a1+)\n" - "fmov fs23, (a1+)\n" - "fmov fs24, (a1+)\n" - "fmov fs25, (a1+)\n" - "fmov fs26, (a1+)\n" - "fmov fs27, (a1+)\n" - "fmov fs28, (a1+)\n" - "fmov fs29, (a1+)\n" - "fmov fs30, (a1+)\n" - "fmov fs31, (a1+)\n" - "fmov fpcr, %0\n" - : "=d"(gdbstub_fpcr) - : "g" (&gdbstub_fpufs_array), "i"(EPSW_FE) - : "a1" - ); -#endif -} - -/* - * - */ -static void gdbstub_load_fpu(void) -{ -#ifdef CONFIG_FPU - - asm volatile( - "or %1,epsw\n" -#ifdef CONFIG_MN10300_PROC_MN103E010 - "nop\n" - "nop\n" -#endif - "mov %0, a1\n" - "fmov (a1+), fs0\n" - "fmov (a1+), fs1\n" - "fmov (a1+), fs2\n" - "fmov (a1+), fs3\n" - "fmov (a1+), fs4\n" - "fmov (a1+), fs5\n" - "fmov (a1+), fs6\n" - "fmov (a1+), fs7\n" - "fmov (a1+), fs8\n" - "fmov (a1+), fs9\n" - "fmov (a1+), fs10\n" - "fmov (a1+), fs11\n" - "fmov (a1+), fs12\n" - "fmov (a1+), fs13\n" - "fmov (a1+), fs14\n" - "fmov (a1+), fs15\n" - "fmov (a1+), fs16\n" - "fmov (a1+), fs17\n" - "fmov (a1+), fs18\n" - "fmov (a1+), fs19\n" - "fmov (a1+), fs20\n" - "fmov (a1+), fs21\n" - "fmov (a1+), fs22\n" - "fmov (a1+), fs23\n" - "fmov (a1+), fs24\n" - "fmov (a1+), fs25\n" - "fmov (a1+), fs26\n" - "fmov (a1+), fs27\n" - "fmov (a1+), fs28\n" - "fmov (a1+), fs29\n" - "fmov (a1+), fs30\n" - "fmov (a1+), fs31\n" - "fmov %2, fpcr\n" - : - : "g" (&gdbstub_fpufs_array), "i"(EPSW_FE), "d"(gdbstub_fpcr) - : "a1" - ); -#endif -} - -/* - * set a software breakpoint - */ -int gdbstub_set_breakpoint(u8 *addr, int len) -{ - int bkpt, loop, xloop; - -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - len = (len + 1) & ~1; -#endif - - gdbstub_bkpt("setbkpt(%p,%d)\n", addr, len); - - for (bkpt = 255; bkpt >= 0; bkpt--) - if (!gdbstub_bkpts[bkpt].addr) - break; - if (bkpt < 0) - return -ENOSPC; - - for (loop = 0; loop < len; loop++) - if (gdbstub_read_byte(&addr[loop], - &gdbstub_bkpts[bkpt].origbytes[loop] - ) < 0) - return -EFAULT; - - gdbstub_flush_caches = 1; - -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - for (loop = 0; loop < len; loop++) - if (gdbstub_write_byte(0xF7, &addr[loop]) < 0) - goto restore; -#else - for (loop = 0; loop < len; loop++) - if (gdbstub_write_byte(0xFF, &addr[loop]) < 0) - goto restore; -#endif - - gdbstub_bkpts[bkpt].addr = addr; - gdbstub_bkpts[bkpt].len = len; - - gdbstub_bkpt("Set BKPT[%02x]: %p-%p {%02x%02x%02x%02x%02x%02x%02x}\n", - bkpt, - gdbstub_bkpts[bkpt].addr, - gdbstub_bkpts[bkpt].addr + gdbstub_bkpts[bkpt].len - 1, - gdbstub_bkpts[bkpt].origbytes[0], - gdbstub_bkpts[bkpt].origbytes[1], - gdbstub_bkpts[bkpt].origbytes[2], - gdbstub_bkpts[bkpt].origbytes[3], - gdbstub_bkpts[bkpt].origbytes[4], - gdbstub_bkpts[bkpt].origbytes[5], - gdbstub_bkpts[bkpt].origbytes[6] - ); - - return 0; - -restore: - for (xloop = 0; xloop < loop; xloop++) - gdbstub_write_byte(gdbstub_bkpts[bkpt].origbytes[xloop], - addr + xloop); - return -EFAULT; -} - -/* - * clear a software breakpoint - */ -int gdbstub_clear_breakpoint(u8 *addr, int len) -{ - int bkpt, loop; - -#ifdef GDBSTUB_USE_F7F7_AS_BREAKPOINT - len = (len + 1) & ~1; -#endif - - gdbstub_bkpt("clearbkpt(%p,%d)\n", addr, len); - - for (bkpt = 255; bkpt >= 0; bkpt--) - if (gdbstub_bkpts[bkpt].addr == addr && - gdbstub_bkpts[bkpt].len == len) - break; - if (bkpt < 0) - return -ENOENT; - - gdbstub_bkpts[bkpt].addr = NULL; - - gdbstub_flush_caches = 1; - - for (loop = 0; loop < len; loop++) - if (gdbstub_write_byte(gdbstub_bkpts[bkpt].origbytes[loop], - addr + loop) < 0) - return -EFAULT; - - return 0; -} - -/* - * This function does all command processing for interfacing to gdb - * - returns 0 if the exception should be skipped, -ERROR otherwise. - */ -static int gdbstub(struct pt_regs *regs, enum exception_code excep) -{ - unsigned long *stack; - unsigned long epsw, mdr; - uint32_t zero, ssp; - uint8_t broke; - char *ptr; - int sigval; - int addr; - int length; - int loop; - - if (excep == EXCEP_FPU_DISABLED) - return -ENOTSUPP; - - gdbstub_flush_caches = 0; - - mn10300_set_gdbleds(1); - - asm volatile("mov mdr,%0" : "=d"(mdr)); - local_save_flags(epsw); - arch_local_change_intr_mask_level( - NUM2EPSW_IM(CONFIG_DEBUGGER_IRQ_LEVEL + 1)); - - gdbstub_store_fpu(); - -#ifdef CONFIG_GDBSTUB_IMMEDIATE - /* skip the initial pause loop */ - if (regs->pc == (unsigned long) __gdbstub_pause) - regs->pc = (unsigned long) start_kernel; -#endif - - /* if we were single stepping, restore the opcodes hoisted for the - * breakpoint[s] */ - broke = 0; -#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP - if ((step_bp[0].addr && step_bp[0].addr == (u8 *) regs->pc) || - (step_bp[1].addr && step_bp[1].addr == (u8 *) regs->pc)) - broke = 1; - - __gdbstub_restore_bp(); -#endif - - if (gdbstub_rx_unget) { - sigval = SIGINT; - if (gdbstub_rx_unget != 3) - goto packet_waiting; - gdbstub_rx_unget = 0; - } - - stack = (unsigned long *) regs->sp; - sigval = broke ? SIGTRAP : computeSignal(excep); - - /* send information about a BUG() */ - if (!user_mode(regs) && excep == EXCEP_SYSCALL15) { - const struct bug_entry *bug; - - bug = find_bug(regs->pc); - if (bug) - goto found_bug; - length = snprintf(trans_buffer, sizeof(trans_buffer), - "BUG() at address %lx\n", regs->pc); - goto send_bug_pkt; - - found_bug: - length = snprintf(trans_buffer, sizeof(trans_buffer), - "BUG() at address %lx (%s:%d)\n", - regs->pc, bug->file, bug->line); - - send_bug_pkt: - ptr = output_buffer; - *ptr++ = 'O'; - ptr = mem2hex(trans_buffer, ptr, length, 0); - *ptr = 0; - putpacket(output_buffer); - - regs->pc -= 2; - sigval = SIGABRT; - } else if (regs->pc == (unsigned long) __gdbstub_bug_trap) { - regs->pc = regs->mdr; - sigval = SIGABRT; - } - - /* - * send a message to the debugger's user saying what happened if it may - * not be clear cut (we can't map exceptions onto signals properly) - */ - if (sigval != SIGINT && sigval != SIGTRAP && sigval != SIGILL) { - static const char title[] = "Excep ", tbcberr[] = "BCBERR "; - static const char crlf[] = "\r\n"; - char hx; - u32 bcberr = BCBERR; - - ptr = output_buffer; - *ptr++ = 'O'; - ptr = mem2hex(title, ptr, sizeof(title) - 1, 0); - - hx = hex_asc_hi(excep >> 8); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(excep >> 8); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_hi(excep); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(excep); - ptr = hex_byte_pack(ptr, hx); - - ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0); - *ptr = 0; - putpacket(output_buffer); /* send it off... */ - - /* BCBERR */ - ptr = output_buffer; - *ptr++ = 'O'; - ptr = mem2hex(tbcberr, ptr, sizeof(tbcberr) - 1, 0); - - hx = hex_asc_hi(bcberr >> 24); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(bcberr >> 24); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_hi(bcberr >> 16); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(bcberr >> 16); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_hi(bcberr >> 8); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(bcberr >> 8); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_hi(bcberr); - ptr = hex_byte_pack(ptr, hx); - hx = hex_asc_lo(bcberr); - ptr = hex_byte_pack(ptr, hx); - - ptr = mem2hex(crlf, ptr, sizeof(crlf) - 1, 0); - *ptr = 0; - putpacket(output_buffer); /* send it off... */ - } - - /* - * tell the debugger that an exception has occurred - */ - ptr = output_buffer; - - /* - * Send trap type (converted to signal) - */ - *ptr++ = 'T'; - ptr = hex_byte_pack(ptr, sigval); - - /* - * Send Error PC - */ - ptr = hex_byte_pack(ptr, GDB_REGID_PC); - *ptr++ = ':'; - ptr = mem2hex(®s->pc, ptr, 4, 0); - *ptr++ = ';'; - - /* - * Send frame pointer - */ - ptr = hex_byte_pack(ptr, GDB_REGID_FP); - *ptr++ = ':'; - ptr = mem2hex(®s->a3, ptr, 4, 0); - *ptr++ = ';'; - - /* - * Send stack pointer - */ - ssp = (unsigned long) (regs + 1); - ptr = hex_byte_pack(ptr, GDB_REGID_SP); - *ptr++ = ':'; - ptr = mem2hex(&ssp, ptr, 4, 0); - *ptr++ = ';'; - - *ptr++ = 0; - putpacket(output_buffer); /* send it off... */ - -packet_waiting: - /* - * Wait for input from remote GDB - */ - while (1) { - output_buffer[0] = 0; - getpacket(input_buffer); - - switch (input_buffer[0]) { - /* request repeat of last signal number */ - case '?': - output_buffer[0] = 'S'; - output_buffer[1] = hex_asc_hi(sigval); - output_buffer[2] = hex_asc_lo(sigval); - output_buffer[3] = 0; - break; - - case 'd': - /* toggle debug flag */ - break; - - /* - * Return the value of the CPU registers - */ - case 'g': - zero = 0; - ssp = (u32) (regs + 1); - ptr = output_buffer; - ptr = mem2hex(®s->d0, ptr, 4, 0); - ptr = mem2hex(®s->d1, ptr, 4, 0); - ptr = mem2hex(®s->d2, ptr, 4, 0); - ptr = mem2hex(®s->d3, ptr, 4, 0); - ptr = mem2hex(®s->a0, ptr, 4, 0); - ptr = mem2hex(®s->a1, ptr, 4, 0); - ptr = mem2hex(®s->a2, ptr, 4, 0); - ptr = mem2hex(®s->a3, ptr, 4, 0); - - ptr = mem2hex(&ssp, ptr, 4, 0); /* 8 */ - ptr = mem2hex(®s->pc, ptr, 4, 0); - ptr = mem2hex(®s->mdr, ptr, 4, 0); - ptr = mem2hex(®s->epsw, ptr, 4, 0); - ptr = mem2hex(®s->lir, ptr, 4, 0); - ptr = mem2hex(®s->lar, ptr, 4, 0); - ptr = mem2hex(®s->mdrq, ptr, 4, 0); - - ptr = mem2hex(®s->e0, ptr, 4, 0); /* 15 */ - ptr = mem2hex(®s->e1, ptr, 4, 0); - ptr = mem2hex(®s->e2, ptr, 4, 0); - ptr = mem2hex(®s->e3, ptr, 4, 0); - ptr = mem2hex(®s->e4, ptr, 4, 0); - ptr = mem2hex(®s->e5, ptr, 4, 0); - ptr = mem2hex(®s->e6, ptr, 4, 0); - ptr = mem2hex(®s->e7, ptr, 4, 0); - - ptr = mem2hex(&ssp, ptr, 4, 0); - ptr = mem2hex(®s, ptr, 4, 0); - ptr = mem2hex(®s->sp, ptr, 4, 0); - ptr = mem2hex(®s->mcrh, ptr, 4, 0); /* 26 */ - ptr = mem2hex(®s->mcrl, ptr, 4, 0); - ptr = mem2hex(®s->mcvf, ptr, 4, 0); - - ptr = mem2hex(&gdbstub_fpcr, ptr, 4, 0); /* 29 - FPCR */ - ptr = mem2hex(&zero, ptr, 4, 0); - ptr = mem2hex(&zero, ptr, 4, 0); - for (loop = 0; loop < 32; loop++) - ptr = mem2hex(&gdbstub_fpufs_array[loop], - ptr, 4, 0); /* 32 - FS0-31 */ - - break; - - /* - * set the value of the CPU registers - return OK - */ - case 'G': - { - const char *ptr; - - ptr = &input_buffer[1]; - ptr = hex2mem(ptr, ®s->d0, 4, 0); - ptr = hex2mem(ptr, ®s->d1, 4, 0); - ptr = hex2mem(ptr, ®s->d2, 4, 0); - ptr = hex2mem(ptr, ®s->d3, 4, 0); - ptr = hex2mem(ptr, ®s->a0, 4, 0); - ptr = hex2mem(ptr, ®s->a1, 4, 0); - ptr = hex2mem(ptr, ®s->a2, 4, 0); - ptr = hex2mem(ptr, ®s->a3, 4, 0); - - ptr = hex2mem(ptr, &ssp, 4, 0); /* 8 */ - ptr = hex2mem(ptr, ®s->pc, 4, 0); - ptr = hex2mem(ptr, ®s->mdr, 4, 0); - ptr = hex2mem(ptr, ®s->epsw, 4, 0); - ptr = hex2mem(ptr, ®s->lir, 4, 0); - ptr = hex2mem(ptr, ®s->lar, 4, 0); - ptr = hex2mem(ptr, ®s->mdrq, 4, 0); - - ptr = hex2mem(ptr, ®s->e0, 4, 0); /* 15 */ - ptr = hex2mem(ptr, ®s->e1, 4, 0); - ptr = hex2mem(ptr, ®s->e2, 4, 0); - ptr = hex2mem(ptr, ®s->e3, 4, 0); - ptr = hex2mem(ptr, ®s->e4, 4, 0); - ptr = hex2mem(ptr, ®s->e5, 4, 0); - ptr = hex2mem(ptr, ®s->e6, 4, 0); - ptr = hex2mem(ptr, ®s->e7, 4, 0); - - ptr = hex2mem(ptr, &ssp, 4, 0); - ptr = hex2mem(ptr, &zero, 4, 0); - ptr = hex2mem(ptr, ®s->sp, 4, 0); - ptr = hex2mem(ptr, ®s->mcrh, 4, 0); /* 26 */ - ptr = hex2mem(ptr, ®s->mcrl, 4, 0); - ptr = hex2mem(ptr, ®s->mcvf, 4, 0); - - ptr = hex2mem(ptr, &zero, 4, 0); /* 29 - FPCR */ - ptr = hex2mem(ptr, &zero, 4, 0); - ptr = hex2mem(ptr, &zero, 4, 0); - for (loop = 0; loop < 32; loop++) /* 32 - FS0-31 */ - ptr = hex2mem(ptr, &zero, 4, 0); - -#if 0 - /* - * See if the stack pointer has moved. If so, then copy - * the saved locals and ins to the new location. - */ - unsigned long *newsp = (unsigned long *) registers[SP]; - if (sp != newsp) - sp = memcpy(newsp, sp, 16 * 4); -#endif - - gdbstub_strcpy(output_buffer, "OK"); - } - break; - - /* - * mAA..AA,LLLL Read LLLL bytes at address AA..AA - */ - case 'm': - ptr = &input_buffer[1]; - - if (hexToInt(&ptr, &addr) && - *ptr++ == ',' && - hexToInt(&ptr, &length) - ) { - if (mem2hex((char *) addr, output_buffer, - length, 1)) - break; - gdbstub_strcpy(output_buffer, "E03"); - } else { - gdbstub_strcpy(output_buffer, "E01"); - } - break; - - /* - * MAA..AA,LLLL: Write LLLL bytes at address AA.AA - * return OK - */ - case 'M': - ptr = &input_buffer[1]; - - if (hexToInt(&ptr, &addr) && - *ptr++ == ',' && - hexToInt(&ptr, &length) && - *ptr++ == ':' - ) { - if (hex2mem(ptr, (char *) addr, length, 1)) - gdbstub_strcpy(output_buffer, "OK"); - else - gdbstub_strcpy(output_buffer, "E03"); - - gdbstub_flush_caches = 1; - } else { - gdbstub_strcpy(output_buffer, "E02"); - } - break; - - /* - * cAA..AA Continue at address AA..AA(optional) - */ - case 'c': - /* try to read optional parameter, pc unchanged if no - * parm */ - - ptr = &input_buffer[1]; - if (hexToInt(&ptr, &addr)) - regs->pc = addr; - goto done; - - /* - * kill the program - */ - case 'k' : - goto done; /* just continue */ - - /* - * Reset the whole machine (FIXME: system dependent) - */ - case 'r': - break; - - /* - * Step to next instruction - */ - case 's': - /* Using the T flag doesn't seem to perform single - * stepping (it seems to wind up being caught by the - * JTAG unit), so we have to use breakpoints and - * continue instead. - */ -#ifdef CONFIG_GDBSTUB_ALLOW_SINGLE_STEP - if (gdbstub_single_step(regs) < 0) - /* ignore any fault error for now */ - gdbstub_printk("unable to set single-step" - " bp\n"); - goto done; -#else - gdbstub_strcpy(output_buffer, "E01"); - break; -#endif - - /* - * Set baud rate (bBB) - */ - case 'b': - do { - int baudrate; - - ptr = &input_buffer[1]; - if (!hexToInt(&ptr, &baudrate)) { - gdbstub_strcpy(output_buffer, "B01"); - break; - } - - if (baudrate) { - /* ACK before changing speed */ - putpacket("OK"); - gdbstub_io_set_baud(baudrate); - } - } while (0); - break; - - /* - * Set breakpoint - */ - case 'Z': - ptr = &input_buffer[1]; - - if (!hexToInt(&ptr, &loop) || *ptr++ != ',' || - !hexToInt(&ptr, &addr) || *ptr++ != ',' || - !hexToInt(&ptr, &length) - ) { - gdbstub_strcpy(output_buffer, "E01"); - break; - } - - /* only support software breakpoints */ - gdbstub_strcpy(output_buffer, "E03"); - if (loop != 0 || - length < 1 || - length > 7 || - (unsigned long) addr < 4096) - break; - - if (gdbstub_set_breakpoint((u8 *) addr, length) < 0) - break; - - gdbstub_strcpy(output_buffer, "OK"); - break; - - /* - * Clear breakpoint - */ - case 'z': - ptr = &input_buffer[1]; - - if (!hexToInt(&ptr, &loop) || *ptr++ != ',' || - !hexToInt(&ptr, &addr) || *ptr++ != ',' || - !hexToInt(&ptr, &length) - ) { - gdbstub_strcpy(output_buffer, "E01"); - break; - } - - /* only support software breakpoints */ - gdbstub_strcpy(output_buffer, "E03"); - if (loop != 0 || - length < 1 || - length > 7 || - (unsigned long) addr < 4096) - break; - - if (gdbstub_clear_breakpoint((u8 *) addr, length) < 0) - break; - - gdbstub_strcpy(output_buffer, "OK"); - break; - - default: - gdbstub_proto("### GDB Unsupported Cmd '%s'\n", - input_buffer); - break; - } - - /* reply to the request */ - putpacket(output_buffer); - } - -done: - /* - * Need to flush the instruction cache here, as we may - * have deposited a breakpoint, and the icache probably - * has no way of knowing that a data ref to some location - * may have changed something that is in the instruction - * cache. - * NB: We flush both caches, just to be sure... - */ - if (gdbstub_flush_caches) - debugger_local_cache_flushinv(); - - gdbstub_load_fpu(); - mn10300_set_gdbleds(0); - if (excep == EXCEP_NMI) - NMICR = NMICR_NMIF; - - touch_softlockup_watchdog(); - - local_irq_restore(epsw); - return 0; -} - -/* - * Determine if we hit a debugger special breakpoint that needs skipping over - * automatically. - */ -int at_debugger_breakpoint(struct pt_regs *regs) -{ - return 0; -} - -/* - * handle event interception - */ -asmlinkage int debugger_intercept(enum exception_code excep, - int signo, int si_code, struct pt_regs *regs) -{ - static u8 notfirst = 1; - int ret; - - if (gdbstub_busy) - gdbstub_printk("--> gdbstub reentered itself\n"); - gdbstub_busy = 1; - - if (notfirst) { - unsigned long mdr; - asm("mov mdr,%0" : "=d"(mdr)); - - gdbstub_entry( - "--> debugger_intercept(%p,%04x) [MDR=%lx PC=%lx]\n", - regs, excep, mdr, regs->pc); - - gdbstub_entry( - "PC: %08lx EPSW: %08lx SSP: %08lx mode: %s\n", - regs->pc, regs->epsw, (unsigned long) &ret, - user_mode(regs) ? "User" : "Super"); - gdbstub_entry( - "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - regs->d0, regs->d1, regs->d2, regs->d3); - gdbstub_entry( - "a0: %08lx a1: %08lx a2: %08lx a3: %08lx\n", - regs->a0, regs->a1, regs->a2, regs->a3); - gdbstub_entry( - "e0: %08lx e1: %08lx e2: %08lx e3: %08lx\n", - regs->e0, regs->e1, regs->e2, regs->e3); - gdbstub_entry( - "e4: %08lx e5: %08lx e6: %08lx e7: %08lx\n", - regs->e4, regs->e5, regs->e6, regs->e7); - gdbstub_entry( - "lar: %08lx lir: %08lx mdr: %08lx usp: %08lx\n", - regs->lar, regs->lir, regs->mdr, regs->sp); - gdbstub_entry( - "cvf: %08lx crl: %08lx crh: %08lx drq: %08lx\n", - regs->mcvf, regs->mcrl, regs->mcrh, regs->mdrq); - gdbstub_entry( - "threadinfo=%p task=%p)\n", - current_thread_info(), current); - } else { - notfirst = 1; - } - - ret = gdbstub(regs, excep); - - gdbstub_entry("<-- debugger_intercept()\n"); - gdbstub_busy = 0; - return ret; -} - -/* - * handle the GDB stub itself causing an exception - */ -asmlinkage void gdbstub_exception(struct pt_regs *regs, - enum exception_code excep) -{ - unsigned long mdr; - - asm("mov mdr,%0" : "=d"(mdr)); - gdbstub_entry("--> gdbstub exception({%p},%04x) [MDR=%lx]\n", - regs, excep, mdr); - - while ((unsigned long) regs == 0xffffffff) {} - - /* handle guarded memory accesses where we know it might fault */ - if (regs->pc == (unsigned) gdbstub_read_byte_guard) { - regs->pc = (unsigned) gdbstub_read_byte_cont; - goto fault; - } - - if (regs->pc == (unsigned) gdbstub_read_word_guard) { - regs->pc = (unsigned) gdbstub_read_word_cont; - goto fault; - } - - if (regs->pc == (unsigned) gdbstub_read_dword_guard) { - regs->pc = (unsigned) gdbstub_read_dword_cont; - goto fault; - } - - if (regs->pc == (unsigned) gdbstub_write_byte_guard) { - regs->pc = (unsigned) gdbstub_write_byte_cont; - goto fault; - } - - if (regs->pc == (unsigned) gdbstub_write_word_guard) { - regs->pc = (unsigned) gdbstub_write_word_cont; - goto fault; - } - - if (regs->pc == (unsigned) gdbstub_write_dword_guard) { - regs->pc = (unsigned) gdbstub_write_dword_cont; - goto fault; - } - - gdbstub_printk("\n### GDB stub caused an exception ###\n"); - - /* something went horribly wrong */ - console_verbose(); - show_registers(regs); - - panic("GDB Stub caused an unexpected exception - can't continue\n"); - - /* we caught an attempt by the stub to access silly memory */ -fault: - gdbstub_entry("<-- gdbstub exception() = EFAULT\n"); - regs->d0 = -EFAULT; - return; -} - -/* - * send an exit message to GDB - */ -void gdbstub_exit(int status) -{ - unsigned char checksum; - unsigned char ch; - int count; - - gdbstub_busy = 1; - output_buffer[0] = 'W'; - output_buffer[1] = hex_asc_hi(status); - output_buffer[2] = hex_asc_lo(status); - output_buffer[3] = 0; - - gdbstub_io_tx_char('$'); - checksum = 0; - count = 0; - - while ((ch = output_buffer[count]) != 0) { - gdbstub_io_tx_char(ch); - checksum += ch; - count += 1; - } - - gdbstub_io_tx_char('#'); - gdbstub_io_tx_char(hex_asc_hi(checksum)); - gdbstub_io_tx_char(hex_asc_lo(checksum)); - - /* make sure the output is flushed, or else RedBoot might clobber it */ - gdbstub_io_tx_flush(); - - gdbstub_busy = 0; -} - -/* - * initialise the GDB stub - */ -asmlinkage void __init gdbstub_init(void) -{ -#ifdef CONFIG_GDBSTUB_IMMEDIATE - unsigned char ch; - int ret; -#endif - - gdbstub_busy = 1; - - printk(KERN_INFO "%s", gdbstub_banner); - - gdbstub_io_init(); - - gdbstub_entry("--> gdbstub_init\n"); - - /* try to talk to GDB (or anyone insane enough to want to type GDB - * protocol by hand) */ - gdbstub_io("### GDB Tx ACK\n"); - gdbstub_io_tx_char('+'); /* 'hello world' */ - -#ifdef CONFIG_GDBSTUB_IMMEDIATE - gdbstub_printk("GDB Stub waiting for packet\n"); - - /* in case GDB is started before us, ACK any packets that are already - * sitting there (presumably "$?#xx") - */ - do { gdbstub_io_rx_char(&ch, 0); } while (ch != '$'); - do { gdbstub_io_rx_char(&ch, 0); } while (ch != '#'); - /* eat first csum byte */ - do { ret = gdbstub_io_rx_char(&ch, 0); } while (ret != 0); - /* eat second csum byte */ - do { ret = gdbstub_io_rx_char(&ch, 0); } while (ret != 0); - - gdbstub_io("### GDB Tx NAK\n"); - gdbstub_io_tx_char('-'); /* NAK it */ - -#else - printk("GDB Stub ready\n"); -#endif - - gdbstub_busy = 0; - gdbstub_entry("<-- gdbstub_init\n"); -} - -/* - * register the console at a more appropriate time - */ -#ifdef CONFIG_GDBSTUB_CONSOLE -static int __init gdbstub_postinit(void) -{ - printk(KERN_NOTICE "registering console\n"); - register_console(&gdbstub_console); - return 0; -} - -__initcall(gdbstub_postinit); -#endif - -/* - * handle character reception on GDB serial port - * - jump into the GDB stub if BREAK is detected on the serial line - */ -asmlinkage void gdbstub_rx_irq(struct pt_regs *regs, enum exception_code excep) -{ - char ch; - int ret; - - gdbstub_entry("--> gdbstub_rx_irq\n"); - - do { - ret = gdbstub_io_rx_char(&ch, 1); - if (ret != -EIO && ret != -EAGAIN) { - if (ret != -EINTR) - gdbstub_rx_unget = ch; - gdbstub(regs, excep); - } - } while (ret != -EAGAIN); - - gdbstub_entry("<-- gdbstub_rx_irq\n"); -} diff --git a/arch/mn10300/kernel/head.S b/arch/mn10300/kernel/head.S deleted file mode 100644 index 0b15f759e0d2..000000000000 --- a/arch/mn10300/kernel/head.S +++ /dev/null @@ -1,442 +0,0 @@ -/* Boot entry point for MN10300 kernel - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/init.h> -#include <linux/threads.h> -#include <linux/linkage.h> -#include <linux/serial_reg.h> -#include <asm/thread_info.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/frame.inc> -#include <asm/param.h> -#include <unit/serial.h> -#ifdef CONFIG_SMP -#include <asm/smp.h> -#include <asm/intctl-regs.h> -#include <asm/cpu-regs.h> -#include <proc/smp-regs.h> -#endif /* CONFIG_SMP */ - - __HEAD - -############################################################################### -# -# bootloader entry point -# -############################################################################### - .globl _start - .type _start,@function -_start: -#ifdef CONFIG_SMP - # - # If this is a secondary CPU (AP), then deal with that elsewhere - # - mov (CPUID),d3 - and CPUID_MASK,d3 - bne startup_secondary - - # - # We're dealing with the primary CPU (BP) here, then. - # Keep BP's D0,D1,D2 register for boot check. - # - - # Set up the Boot IPI for each secondary CPU - mov 0x1,a0 -loop_set_secondary_icr: - mov a0,a1 - asl CROSS_ICR_CPU_SHIFT,a1 - add CROSS_GxICR(SMP_BOOT_IRQ,0),a1 - movhu (a1),d3 - or GxICR_ENABLE|GxICR_LEVEL_0,d3 - movhu d3,(a1) - movhu (a1),d3 # flush - inc a0 - cmp NR_CPUS,a0 - bne loop_set_secondary_icr -#endif /* CONFIG_SMP */ - - # save commandline pointer - mov d0,a3 - - # preload the PGD pointer register - mov swapper_pg_dir,d0 - mov d0,(PTBR) - clr d0 - movbu d0,(PIDR) - - # turn on the TLBs - mov MMUCTR_IIV|MMUCTR_DIV,d0 - mov d0,(MMUCTR) -#ifdef CONFIG_AM34_2 - mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE|MMUCTR_WTE,d0 -#else - mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE,d0 -#endif - mov d0,(MMUCTR) - - # turn on AM33v2 exception handling mode and set the trap table base - movhu (CPUP),d0 - or CPUP_EXM_AM33V2,d0 - movhu d0,(CPUP) - mov CONFIG_INTERRUPT_VECTOR_BASE,d0 - mov d0,(TBR) - - # invalidate and enable both of the caches -#ifdef CONFIG_SMP - mov ECHCTR,a0 - clr d0 - mov d0,(a0) -#endif - mov CHCTR,a0 - clr d0 - movhu d0,(a0) # turn off first - mov CHCTR_ICINV|CHCTR_DCINV,d0 - movhu d0,(a0) - setlb - mov (a0),d0 - btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy - lne - -#ifdef CONFIG_MN10300_CACHE_ENABLED -#ifdef CONFIG_MN10300_CACHE_WBACK -#ifndef CONFIG_MN10300_CACHE_WBACK_NOWRALLOC - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0 -#else - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK|CHCTR_DCALMD,d0 -#endif /* NOWRALLOC */ -#else - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0 -#endif /* WBACK */ - movhu d0,(a0) # enable -#endif /* ENABLED */ - - # turn on RTS on the debug serial port if applicable -#ifdef CONFIG_MN10300_UNIT_ASB2305 - bset UART_MCR_RTS,(ASB2305_DEBUG_MCR) -#endif - - # clear the BSS area - mov __bss_start,a0 - mov __bss_stop,a1 - clr d0 -bssclear: - cmp a1,a0 - bge bssclear_end - mov d0,(a0) - inc4 a0 - bra bssclear -bssclear_end: - - # retrieve the parameters (including command line) before we overwrite - # them - cmp 0xabadcafe,d1 - bne __no_parameters - -__copy_parameters: - mov redboot_command_line,a0 - mov a0,a1 - add COMMAND_LINE_SIZE,a1 -1: - movbu (a3),d0 - inc a3 - movbu d0,(a0) - inc a0 - cmp a1,a0 - blt 1b - - mov redboot_platform_name,a0 - mov a0,a1 - add COMMAND_LINE_SIZE,a1 - mov d2,a3 -1: - movbu (a3),d0 - inc a3 - movbu d0,(a0) - inc a0 - cmp a1,a0 - blt 1b - -__no_parameters: - - # set up the registers with recognisable rubbish in them - mov init_thread_union+THREAD_SIZE-12,sp - - mov 0xea01eaea,d0 - mov d0,(4,sp) # EPSW save area - mov 0xea02eaea,d0 - mov d0,(8,sp) # PC save area - - mov 0xeb0060ed,d0 - mov d0,mdr - mov 0xeb0061ed,d0 - mov d0,mdrq - mov 0xeb0062ed,d0 - mov d0,mcrh - mov 0xeb0063ed,d0 - mov d0,mcrl - mov 0xeb0064ed,d0 - mov d0,mcvf - mov 0xed0065ed,a3 - mov a3,usp - - mov 0xed00e0ed,e0 - mov 0xed00e1ed,e1 - mov 0xed00e2ed,e2 - mov 0xed00e3ed,e3 - mov 0xed00e4ed,e4 - mov 0xed00e5ed,e5 - mov 0xed00e6ed,e6 - mov 0xed00e7ed,e7 - - mov 0xed00d0ed,d0 - mov 0xed00d1ed,d1 - mov 0xed00d2ed,d2 - mov 0xed00d3ed,d3 - mov 0xed00a0ed,a0 - mov 0xed00a1ed,a1 - mov 0xed00a2ed,a2 - mov 0,a3 - - # set up the initial kernel stack - SAVE_ALL - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - - # put different recognisable rubbish in the regs - mov 0xfb0060ed,d0 - mov d0,mdr - mov 0xfb0061ed,d0 - mov d0,mdrq - mov 0xfb0062ed,d0 - mov d0,mcrh - mov 0xfb0063ed,d0 - mov d0,mcrl - mov 0xfb0064ed,d0 - mov d0,mcvf - mov 0xfd0065ed,a0 - mov a0,usp - - mov 0xfd00e0ed,e0 - mov 0xfd00e1ed,e1 - mov 0xfd00e2ed,e2 - mov 0xfd00e3ed,e3 - mov 0xfd00e4ed,e4 - mov 0xfd00e5ed,e5 - mov 0xfd00e6ed,e6 - mov 0xfd00e7ed,e7 - - mov 0xfd00d0ed,d0 - mov 0xfd00d1ed,d1 - mov 0xfd00d2ed,d2 - mov 0xfd00d3ed,d3 - mov 0xfd00a0ed,a0 - mov 0xfd00a1ed,a1 - mov 0xfd00a2ed,a2 - - # we may be holding current in E2 -#ifdef CONFIG_MN10300_CURRENT_IN_E2 - mov init_task,e2 -#endif - - # initialise the processor and the unit - call processor_init[],0 - call unit_init[],0 - -#ifdef CONFIG_SMP - # mark the primary CPU in cpu_boot_map - mov cpu_boot_map,a0 - mov 0x1,d0 - mov d0,(a0) - - # signal each secondary CPU to begin booting - mov 0x1,d2 # CPU ID - -loop_request_boot_secondary: - mov d2,a0 - # send SMP_BOOT_IPI to secondary CPU - asl CROSS_ICR_CPU_SHIFT,a0 - add CROSS_GxICR(SMP_BOOT_IRQ,0),a0 - movhu (a0),d0 - or GxICR_REQUEST|GxICR_DETECT,d0 - movhu d0,(a0) - movhu (a0),d0 # flush - - # wait up to 100ms for AP's IPI to be received - clr d3 -wait_on_secondary_boot: - mov DELAY_TIME_BOOT_IPI,d0 - call __delay[],0 - inc d3 - mov cpu_boot_map,a0 - mov (a0),d0 - lsr d2,d0 - btst 0x1,d0 - bne 1f - cmp TIME_OUT_COUNT_BOOT_IPI,d3 - bne wait_on_secondary_boot -1: - inc d2 - cmp NR_CPUS,d2 - bne loop_request_boot_secondary -#endif /* CONFIG_SMP */ - -#ifdef CONFIG_GDBSTUB - call gdbstub_init[],0 - -#ifdef CONFIG_GDBSTUB_IMMEDIATE - .globl __gdbstub_pause -__gdbstub_pause: - bra __gdbstub_pause -#endif -#endif - - jmp start_kernel - .size _start,.-_start - -############################################################################### -# -# Secondary CPU boot point -# -############################################################################### -#ifdef CONFIG_SMP -startup_secondary: - # preload the PGD pointer register - mov swapper_pg_dir,d0 - mov d0,(PTBR) - clr d0 - movbu d0,(PIDR) - - # turn on the TLBs - mov MMUCTR_IIV|MMUCTR_DIV,d0 - mov d0,(MMUCTR) -#ifdef CONFIG_AM34_2 - mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE|MMUCTR_WTE,d0 -#else - mov MMUCTR_ITE|MMUCTR_DTE|MMUCTR_CE,d0 -#endif - mov d0,(MMUCTR) - - # turn on AM33v2 exception handling mode and set the trap table base - movhu (CPUP),d0 - or CPUP_EXM_AM33V2,d0 - movhu d0,(CPUP) - - # set the interrupt vector table - mov CONFIG_INTERRUPT_VECTOR_BASE,d0 - mov d0,(TBR) - - # invalidate and enable both of the caches - mov ECHCTR,a0 - clr d0 - mov d0,(a0) - mov CHCTR,a0 - clr d0 - movhu d0,(a0) # turn off first - mov CHCTR_ICINV|CHCTR_DCINV,d0 - movhu d0,(a0) - setlb - mov (a0),d0 - btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy (use CPU loop buffer) - lne - -#ifdef CONFIG_MN10300_CACHE_ENABLED -#ifdef CONFIG_MN10300_CACHE_WBACK -#ifndef CONFIG_MN10300_CACHE_WBACK_NOWRALLOC - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0 -#else - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK|CHCTR_DCALMD,d0 -#endif /* !NOWRALLOC */ -#else - mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0 -#endif /* WBACK */ - movhu d0,(a0) # enable -#endif /* ENABLED */ - - # Clear the boot IPI interrupt for this CPU - movhu (GxICR(SMP_BOOT_IRQ)),d0 - and ~GxICR_REQUEST,d0 - movhu d0,(GxICR(SMP_BOOT_IRQ)) - movhu (GxICR(SMP_BOOT_IRQ)),d0 # flush - - /* get stack */ - mov CONFIG_INTERRUPT_VECTOR_BASE + CONFIG_BOOT_STACK_OFFSET,a0 - mov (CPUID),d0 - and CPUID_MASK,d0 - mulu CONFIG_BOOT_STACK_SIZE,d0 - sub d0,a0 - mov a0,sp - - # init interrupt for AP - call smp_prepare_cpu_init[],0 - - # mark this secondary CPU in cpu_boot_map - mov (CPUID),d0 - mov 0x1,d1 - asl d0,d1 - mov cpu_boot_map,a0 - bset d1,(a0) - - or EPSW_IE|EPSW_IM_1,epsw # permit level 0 interrupts - nop - nop -#ifdef CONFIG_MN10300_CACHE_WBACK - # flush the local cache if it's in writeback mode - call mn10300_local_dcache_flush_inv[],0 - setlb - mov (CHCTR),d0 - btst CHCTR_DCBUSY,d0 # wait till not busy (use CPU loop buffer) - lne -#endif - - # now sleep waiting for further instructions -secondary_sleep: - mov CPUM_SLEEP,d0 - movhu d0,(CPUM) - nop - nop - bra secondary_sleep - .size startup_secondary,.-startup_secondary -#endif /* CONFIG_SMP */ - -############################################################################### -# -# -# -############################################################################### -ENTRY(__head_end) - -/* - * This is initialized to disallow all access to the low 2G region - * - the high 2G region is managed directly by the MMU - * - range 0x70000000-0x7C000000 are initialised for use by VMALLOC - */ - .section .bss - .balign PAGE_SIZE -ENTRY(swapper_pg_dir) - .space PTRS_PER_PGD*4 - -/* - * The page tables are initialized to only 8MB here - the final page - * tables are set up later depending on memory size. - */ - - .balign PAGE_SIZE -ENTRY(empty_zero_page) - .space PAGE_SIZE - - .balign PAGE_SIZE -ENTRY(large_page_table) - .space PAGE_SIZE - - .balign PAGE_SIZE -ENTRY(kernel_vmalloc_ptes) - .space ((VMALLOC_END-VMALLOC_START)/PAGE_SIZE)*4 diff --git a/arch/mn10300/kernel/internal.h b/arch/mn10300/kernel/internal.h deleted file mode 100644 index 561785581f6c..000000000000 --- a/arch/mn10300/kernel/internal.h +++ /dev/null @@ -1,40 +0,0 @@ -/* Internal definitions for the arch part of the core kernel - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/irqreturn.h> - -struct clocksource; -struct clock_event_device; - -/* - * entry.S - */ -extern void ret_from_fork(struct task_struct *) __attribute__((noreturn)); -extern void ret_from_kernel_thread(struct task_struct *) __attribute__((noreturn)); - -/* - * smp-low.S - */ -#ifdef CONFIG_SMP -extern void mn10300_low_ipi_handler(void); -#endif - -/* - * smp.c - */ -#ifdef CONFIG_SMP -extern void smp_jump_to_debugger(void); -#endif - -/* - * time.c - */ -extern irqreturn_t local_timer_interrupt(void); diff --git a/arch/mn10300/kernel/io.c b/arch/mn10300/kernel/io.c deleted file mode 100644 index e96fdf6bb542..000000000000 --- a/arch/mn10300/kernel/io.c +++ /dev/null @@ -1,30 +0,0 @@ -/* MN10300 Misaligned multibyte-word I/O - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <asm/io.h> - -/* - * output data from a potentially misaligned buffer - */ -void __outsl(unsigned long addr, const void *buffer, int count) -{ - const unsigned char *buf = buffer; - unsigned long val; - - while (count--) { - memcpy(&val, buf, 4); - outl(val, addr); - buf += 4; - } -} -EXPORT_SYMBOL(__outsl); diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c deleted file mode 100644 index c716437baa2c..000000000000 --- a/arch/mn10300/kernel/irq.c +++ /dev/null @@ -1,356 +0,0 @@ -/* MN10300 Arch-specific interrupt handling - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/seq_file.h> -#include <linux/cpumask.h> -#include <asm/setup.h> -#include <asm/serial-regs.h> - -unsigned long __mn10300_irq_enabled_epsw[NR_CPUS] __cacheline_aligned_in_smp = { - [0 ... NR_CPUS - 1] = EPSW_IE | EPSW_IM_7 -}; -EXPORT_SYMBOL(__mn10300_irq_enabled_epsw); - -#ifdef CONFIG_SMP -static char irq_affinity_online[NR_IRQS] = { - [0 ... NR_IRQS - 1] = 0 -}; - -#define NR_IRQ_WORDS ((NR_IRQS + 31) / 32) -static unsigned long irq_affinity_request[NR_IRQ_WORDS] = { - [0 ... NR_IRQ_WORDS - 1] = 0 -}; -#endif /* CONFIG_SMP */ - -atomic_t irq_err_count; - -/* - * MN10300 interrupt controller operations - */ -static void mn10300_cpupic_ack(struct irq_data *d) -{ - unsigned int irq = d->irq; - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - GxICR_u8(irq) = GxICR_DETECT; - tmp = GxICR(irq); - arch_local_irq_restore(flags); -} - -static void __mask_and_set_icr(unsigned int irq, - unsigned int mask, unsigned int set) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - tmp = GxICR(irq); - GxICR(irq) = (tmp & mask) | set; - tmp = GxICR(irq); - arch_local_irq_restore(flags); -} - -static void mn10300_cpupic_mask(struct irq_data *d) -{ - __mask_and_set_icr(d->irq, GxICR_LEVEL, 0); -} - -static void mn10300_cpupic_mask_ack(struct irq_data *d) -{ - unsigned int irq = d->irq; -#ifdef CONFIG_SMP - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - - if (!test_and_clear_bit(irq, irq_affinity_request)) { - tmp = GxICR(irq); - GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_DETECT; - tmp = GxICR(irq); - } else { - u16 tmp2; - tmp = GxICR(irq); - GxICR(irq) = (tmp & GxICR_LEVEL); - tmp2 = GxICR(irq); - - irq_affinity_online[irq] = - cpumask_any_and(irq_data_get_affinity_mask(d), - cpu_online_mask); - CROSS_GxICR(irq, irq_affinity_online[irq]) = - (tmp & (GxICR_LEVEL | GxICR_ENABLE)) | GxICR_DETECT; - tmp = CROSS_GxICR(irq, irq_affinity_online[irq]); - } - - arch_local_irq_restore(flags); -#else /* CONFIG_SMP */ - __mask_and_set_icr(irq, GxICR_LEVEL, GxICR_DETECT); -#endif /* CONFIG_SMP */ -} - -static void mn10300_cpupic_unmask(struct irq_data *d) -{ - __mask_and_set_icr(d->irq, GxICR_LEVEL, GxICR_ENABLE); -} - -static void mn10300_cpupic_unmask_clear(struct irq_data *d) -{ - unsigned int irq = d->irq; - /* the MN10300 PIC latches its interrupt request bit, even after the - * device has ceased to assert its interrupt line and the interrupt - * channel has been disabled in the PIC, so for level-triggered - * interrupts we need to clear the request bit when we re-enable */ -#ifdef CONFIG_SMP - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - - if (!test_and_clear_bit(irq, irq_affinity_request)) { - tmp = GxICR(irq); - GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT; - tmp = GxICR(irq); - } else { - tmp = GxICR(irq); - - irq_affinity_online[irq] = cpumask_any_and(irq_data_get_affinity_mask(d), - cpu_online_mask); - CROSS_GxICR(irq, irq_affinity_online[irq]) = (tmp & GxICR_LEVEL) | GxICR_ENABLE | GxICR_DETECT; - tmp = CROSS_GxICR(irq, irq_affinity_online[irq]); - } - - arch_local_irq_restore(flags); -#else /* CONFIG_SMP */ - __mask_and_set_icr(irq, GxICR_LEVEL, GxICR_ENABLE | GxICR_DETECT); -#endif /* CONFIG_SMP */ -} - -#ifdef CONFIG_SMP -static int -mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask, - bool force) -{ - unsigned long flags; - - flags = arch_local_cli_save(); - set_bit(d->irq, irq_affinity_request); - arch_local_irq_restore(flags); - return 0; -} -#endif /* CONFIG_SMP */ - -/* - * MN10300 PIC level-triggered IRQ handling. - * - * The PIC has no 'ACK' function per se. It is possible to clear individual - * channel latches, but each latch relatches whether or not the channel is - * masked, so we need to clear the latch when we unmask the channel. - * - * Also for this reason, we don't supply an ack() op (it's unused anyway if - * mask_ack() is provided), and mask_ack() just masks. - */ -static struct irq_chip mn10300_cpu_pic_level = { - .name = "cpu_l", - .irq_disable = mn10300_cpupic_mask, - .irq_enable = mn10300_cpupic_unmask_clear, - .irq_ack = NULL, - .irq_mask = mn10300_cpupic_mask, - .irq_mask_ack = mn10300_cpupic_mask, - .irq_unmask = mn10300_cpupic_unmask_clear, -#ifdef CONFIG_SMP - .irq_set_affinity = mn10300_cpupic_setaffinity, -#endif -}; - -/* - * MN10300 PIC edge-triggered IRQ handling. - * - * We use the latch clearing function of the PIC as the 'ACK' function. - */ -static struct irq_chip mn10300_cpu_pic_edge = { - .name = "cpu_e", - .irq_disable = mn10300_cpupic_mask, - .irq_enable = mn10300_cpupic_unmask, - .irq_ack = mn10300_cpupic_ack, - .irq_mask = mn10300_cpupic_mask, - .irq_mask_ack = mn10300_cpupic_mask_ack, - .irq_unmask = mn10300_cpupic_unmask, -#ifdef CONFIG_SMP - .irq_set_affinity = mn10300_cpupic_setaffinity, -#endif -}; - -/* - * 'what should we do if we get a hw irq event on an illegal vector'. - * each architecture has to answer this themselves. - */ -void ack_bad_irq(int irq) -{ - printk(KERN_WARNING "unexpected IRQ trap at vector %02x\n", irq); -} - -/* - * change the level at which an IRQ executes - * - must not be called whilst interrupts are being processed! - */ -void set_intr_level(int irq, u16 level) -{ - BUG_ON(in_interrupt()); - - __mask_and_set_icr(irq, GxICR_ENABLE, level); -} - -/* - * mark an interrupt to be ACK'd after interrupt handlers have been run rather - * than before - */ -void mn10300_set_lateack_irq_type(int irq) -{ - irq_set_chip_and_handler(irq, &mn10300_cpu_pic_level, - handle_level_irq); -} - -/* - * initialise the interrupt system - */ -void __init init_IRQ(void) -{ - int irq; - - for (irq = 0; irq < NR_IRQS; irq++) - if (irq_get_chip(irq) == &no_irq_chip) - /* due to the PIC latching interrupt requests, even - * when the IRQ is disabled, IRQ_PENDING is superfluous - * and we can use handle_level_irq() for edge-triggered - * interrupts */ - irq_set_chip_and_handler(irq, &mn10300_cpu_pic_edge, - handle_level_irq); - - unit_init_IRQ(); -} - -/* - * handle normal device IRQs - */ -asmlinkage void do_IRQ(void) -{ - unsigned long sp, epsw, irq_disabled_epsw, old_irq_enabled_epsw; - unsigned int cpu_id = smp_processor_id(); - int irq; - - sp = current_stack_pointer(); - BUG_ON(sp - (sp & ~(THREAD_SIZE - 1)) < STACK_WARN); - - /* make sure local_irq_enable() doesn't muck up the interrupt priority - * setting in EPSW */ - old_irq_enabled_epsw = __mn10300_irq_enabled_epsw[cpu_id]; - local_save_flags(epsw); - __mn10300_irq_enabled_epsw[cpu_id] = EPSW_IE | (EPSW_IM & epsw); - irq_disabled_epsw = EPSW_IE | MN10300_CLI_LEVEL; - -#ifdef CONFIG_MN10300_WD_TIMER - __IRQ_STAT(cpu_id, __irq_count)++; -#endif - - irq_enter(); - - for (;;) { - /* ask the interrupt controller for the next IRQ to process - * - the result we get depends on EPSW.IM - */ - irq = IAGR & IAGR_GN; - if (!irq) - break; - - local_irq_restore(irq_disabled_epsw); - - generic_handle_irq(irq >> 2); - - /* restore IRQ controls for IAGR access */ - local_irq_restore(epsw); - } - - __mn10300_irq_enabled_epsw[cpu_id] = old_irq_enabled_epsw; - - irq_exit(); -} - -/* - * Display interrupt management information through /proc/interrupts - */ -int arch_show_interrupts(struct seq_file *p, int prec) -{ -#ifdef CONFIG_MN10300_WD_TIMER - int j; - - seq_printf(p, "%*s: ", prec, "NMI"); - for (j = 0; j < NR_CPUS; j++) - if (cpu_online(j)) - seq_printf(p, "%10u ", nmi_count(j)); - seq_putc(p, '\n'); -#endif - - seq_printf(p, "%*s: ", prec, "ERR"); - seq_printf(p, "%10u\n", atomic_read(&irq_err_count)); - return 0; -} - -#ifdef CONFIG_HOTPLUG_CPU -void migrate_irqs(void) -{ - int irq; - unsigned int self, new; - unsigned long flags; - - self = smp_processor_id(); - for (irq = 0; irq < NR_IRQS; irq++) { - struct irq_data *data = irq_get_irq_data(irq); - struct cpumask *mask = irq_data_get_affinity_mask(data); - - if (irqd_is_per_cpu(data)) - continue; - - if (cpumask_test_cpu(self, mask) && - !cpumask_intersects(&irq_affinity[irq], cpu_online_mask)) { - int cpu_id; - cpu_id = cpumask_first(cpu_online_mask); - cpumask_set_cpu(cpu_id, mask); - } - /* We need to operate irq_affinity_online atomically. */ - arch_local_cli_save(flags); - if (irq_affinity_online[irq] == self) { - u16 x, tmp; - - x = GxICR(irq); - GxICR(irq) = x & GxICR_LEVEL; - tmp = GxICR(irq); - - new = cpumask_any_and(mask, cpu_online_mask); - irq_affinity_online[irq] = new; - - CROSS_GxICR(irq, new) = - (x & GxICR_LEVEL) | GxICR_DETECT; - tmp = CROSS_GxICR(irq, new); - - x &= GxICR_LEVEL | GxICR_ENABLE; - if (GxICR(irq) & GxICR_REQUEST) - x |= GxICR_REQUEST | GxICR_DETECT; - CROSS_GxICR(irq, new) = x; - tmp = CROSS_GxICR(irq, new); - } - arch_local_irq_restore(flags); - } -} -#endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/mn10300/kernel/kgdb.c b/arch/mn10300/kernel/kgdb.c deleted file mode 100644 index 2d7986c386fe..000000000000 --- a/arch/mn10300/kernel/kgdb.c +++ /dev/null @@ -1,502 +0,0 @@ -/* kgdb support for MN10300 - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/slab.h> -#include <linux/ptrace.h> -#include <linux/kgdb.h> -#include <linux/uaccess.h> -#include <unit/leds.h> -#include <unit/serial.h> -#include <asm/debugger.h> -#include <asm/serial-regs.h> -#include "internal.h" - -/* - * Software single-stepping breakpoint save (used by __switch_to()) - */ -static struct thread_info *kgdb_sstep_thread; -u8 *kgdb_sstep_bp_addr[2]; -u8 kgdb_sstep_bp[2]; - -/* - * Copy kernel exception frame registers to the GDB register file - */ -void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) -{ - unsigned long ssp = (unsigned long) (regs + 1); - - gdb_regs[GDB_FR_D0] = regs->d0; - gdb_regs[GDB_FR_D1] = regs->d1; - gdb_regs[GDB_FR_D2] = regs->d2; - gdb_regs[GDB_FR_D3] = regs->d3; - gdb_regs[GDB_FR_A0] = regs->a0; - gdb_regs[GDB_FR_A1] = regs->a1; - gdb_regs[GDB_FR_A2] = regs->a2; - gdb_regs[GDB_FR_A3] = regs->a3; - gdb_regs[GDB_FR_SP] = (regs->epsw & EPSW_nSL) ? regs->sp : ssp; - gdb_regs[GDB_FR_PC] = regs->pc; - gdb_regs[GDB_FR_MDR] = regs->mdr; - gdb_regs[GDB_FR_EPSW] = regs->epsw; - gdb_regs[GDB_FR_LIR] = regs->lir; - gdb_regs[GDB_FR_LAR] = regs->lar; - gdb_regs[GDB_FR_MDRQ] = regs->mdrq; - gdb_regs[GDB_FR_E0] = regs->e0; - gdb_regs[GDB_FR_E1] = regs->e1; - gdb_regs[GDB_FR_E2] = regs->e2; - gdb_regs[GDB_FR_E3] = regs->e3; - gdb_regs[GDB_FR_E4] = regs->e4; - gdb_regs[GDB_FR_E5] = regs->e5; - gdb_regs[GDB_FR_E6] = regs->e6; - gdb_regs[GDB_FR_E7] = regs->e7; - gdb_regs[GDB_FR_SSP] = ssp; - gdb_regs[GDB_FR_MSP] = 0; - gdb_regs[GDB_FR_USP] = regs->sp; - gdb_regs[GDB_FR_MCRH] = regs->mcrh; - gdb_regs[GDB_FR_MCRL] = regs->mcrl; - gdb_regs[GDB_FR_MCVF] = regs->mcvf; - gdb_regs[GDB_FR_DUMMY0] = 0; - gdb_regs[GDB_FR_DUMMY1] = 0; - gdb_regs[GDB_FR_FS0] = 0; -} - -/* - * Extracts kernel SP/PC values understandable by gdb from the values - * saved by switch_to(). - */ -void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) -{ - gdb_regs[GDB_FR_SSP] = p->thread.sp; - gdb_regs[GDB_FR_PC] = p->thread.pc; - gdb_regs[GDB_FR_A3] = p->thread.a3; - gdb_regs[GDB_FR_USP] = p->thread.usp; - gdb_regs[GDB_FR_FPCR] = p->thread.fpu_state.fpcr; -} - -/* - * Fill kernel exception frame registers from the GDB register file - */ -void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs) -{ - regs->d0 = gdb_regs[GDB_FR_D0]; - regs->d1 = gdb_regs[GDB_FR_D1]; - regs->d2 = gdb_regs[GDB_FR_D2]; - regs->d3 = gdb_regs[GDB_FR_D3]; - regs->a0 = gdb_regs[GDB_FR_A0]; - regs->a1 = gdb_regs[GDB_FR_A1]; - regs->a2 = gdb_regs[GDB_FR_A2]; - regs->a3 = gdb_regs[GDB_FR_A3]; - regs->sp = gdb_regs[GDB_FR_SP]; - regs->pc = gdb_regs[GDB_FR_PC]; - regs->mdr = gdb_regs[GDB_FR_MDR]; - regs->epsw = gdb_regs[GDB_FR_EPSW]; - regs->lir = gdb_regs[GDB_FR_LIR]; - regs->lar = gdb_regs[GDB_FR_LAR]; - regs->mdrq = gdb_regs[GDB_FR_MDRQ]; - regs->e0 = gdb_regs[GDB_FR_E0]; - regs->e1 = gdb_regs[GDB_FR_E1]; - regs->e2 = gdb_regs[GDB_FR_E2]; - regs->e3 = gdb_regs[GDB_FR_E3]; - regs->e4 = gdb_regs[GDB_FR_E4]; - regs->e5 = gdb_regs[GDB_FR_E5]; - regs->e6 = gdb_regs[GDB_FR_E6]; - regs->e7 = gdb_regs[GDB_FR_E7]; - regs->sp = gdb_regs[GDB_FR_SSP]; - /* gdb_regs[GDB_FR_MSP]; */ - // regs->usp = gdb_regs[GDB_FR_USP]; - regs->mcrh = gdb_regs[GDB_FR_MCRH]; - regs->mcrl = gdb_regs[GDB_FR_MCRL]; - regs->mcvf = gdb_regs[GDB_FR_MCVF]; - /* gdb_regs[GDB_FR_DUMMY0]; */ - /* gdb_regs[GDB_FR_DUMMY1]; */ - - // regs->fpcr = gdb_regs[GDB_FR_FPCR]; - // regs->fs0 = gdb_regs[GDB_FR_FS0]; -} - -struct kgdb_arch arch_kgdb_ops = { - .gdb_bpt_instr = { 0xff }, - .flags = KGDB_HW_BREAKPOINT, -}; - -static const unsigned char mn10300_kgdb_insn_sizes[256] = -{ - /* 1 2 3 4 5 6 7 8 9 a b c d e f */ - 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */ - 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */ - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */ - 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */ - 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */ - 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */ -}; - -/* - * Attempt to emulate single stepping by means of breakpoint instructions. - * Although there is a single-step trace flag in EPSW, its use is not - * sufficiently documented and is only intended for use with the JTAG debugger. - */ -static int kgdb_arch_do_singlestep(struct pt_regs *regs) -{ - unsigned long arg; - unsigned size; - u8 *pc = (u8 *)regs->pc, *sp = (u8 *)(regs + 1), cur; - u8 *x = NULL, *y = NULL; - int ret; - - ret = probe_kernel_read(&cur, pc, 1); - if (ret < 0) - return ret; - - size = mn10300_kgdb_insn_sizes[cur]; - if (size > 0) { - x = pc + size; - goto set_x; - } - - switch (cur) { - /* Bxx (d8,PC) */ - case 0xc0 ... 0xca: - ret = probe_kernel_read(&arg, pc + 1, 1); - if (ret < 0) - return ret; - x = pc + 2; - if (arg >= 0 && arg <= 2) - goto set_x; - y = pc + (s8)arg; - goto set_x_and_y; - - /* LXX (d8,PC) */ - case 0xd0 ... 0xda: - x = pc + 1; - if (regs->pc == regs->lar) - goto set_x; - y = (u8 *)regs->lar; - goto set_x_and_y; - - /* SETLB - loads the next four bytes into the LIR register - * (which mustn't include a breakpoint instruction) */ - case 0xdb: - x = pc + 5; - goto set_x; - - /* JMP (d16,PC) or CALL (d16,PC) */ - case 0xcc: - case 0xcd: - ret = probe_kernel_read(&arg, pc + 1, 2); - if (ret < 0) - return ret; - x = pc + (s16)arg; - goto set_x; - - /* JMP (d32,PC) or CALL (d32,PC) */ - case 0xdc: - case 0xdd: - ret = probe_kernel_read(&arg, pc + 1, 4); - if (ret < 0) - return ret; - x = pc + (s32)arg; - goto set_x; - - /* RETF */ - case 0xde: - x = (u8 *)regs->mdr; - goto set_x; - - /* RET */ - case 0xdf: - ret = probe_kernel_read(&arg, pc + 2, 1); - if (ret < 0) - return ret; - ret = probe_kernel_read(&x, sp + (s8)arg, 4); - if (ret < 0) - return ret; - goto set_x; - - case 0xf0: - ret = probe_kernel_read(&cur, pc + 1, 1); - if (ret < 0) - return ret; - - if (cur >= 0xf0 && cur <= 0xf7) { - /* JMP (An) / CALLS (An) */ - switch (cur & 3) { - case 0: x = (u8 *)regs->a0; break; - case 1: x = (u8 *)regs->a1; break; - case 2: x = (u8 *)regs->a2; break; - case 3: x = (u8 *)regs->a3; break; - } - goto set_x; - } else if (cur == 0xfc) { - /* RETS */ - ret = probe_kernel_read(&x, sp, 4); - if (ret < 0) - return ret; - goto set_x; - } else if (cur == 0xfd) { - /* RTI */ - ret = probe_kernel_read(&x, sp + 4, 4); - if (ret < 0) - return ret; - goto set_x; - } else { - x = pc + 2; - goto set_x; - } - break; - - /* potential 3-byte conditional branches */ - case 0xf8: - ret = probe_kernel_read(&cur, pc + 1, 1); - if (ret < 0) - return ret; - x = pc + 3; - - if (cur >= 0xe8 && cur <= 0xeb) { - ret = probe_kernel_read(&arg, pc + 2, 1); - if (ret < 0) - return ret; - if (arg >= 0 && arg <= 3) - goto set_x; - y = pc + (s8)arg; - goto set_x_and_y; - } - goto set_x; - - case 0xfa: - ret = probe_kernel_read(&cur, pc + 1, 1); - if (ret < 0) - return ret; - - if (cur == 0xff) { - /* CALLS (d16,PC) */ - ret = probe_kernel_read(&arg, pc + 2, 2); - if (ret < 0) - return ret; - x = pc + (s16)arg; - goto set_x; - } - - x = pc + 4; - goto set_x; - - case 0xfc: - ret = probe_kernel_read(&cur, pc + 1, 1); - if (ret < 0) - return ret; - - if (cur == 0xff) { - /* CALLS (d32,PC) */ - ret = probe_kernel_read(&arg, pc + 2, 4); - if (ret < 0) - return ret; - x = pc + (s32)arg; - goto set_x; - } - - x = pc + 6; - goto set_x; - } - - return 0; - -set_x: - kgdb_sstep_bp_addr[0] = x; - kgdb_sstep_bp_addr[1] = NULL; - ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1); - if (ret < 0) - return ret; - ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1); - if (ret < 0) - return ret; - kgdb_sstep_thread = current_thread_info(); - debugger_local_cache_flushinv_one(x); - return ret; - -set_x_and_y: - kgdb_sstep_bp_addr[0] = x; - kgdb_sstep_bp_addr[1] = y; - ret = probe_kernel_read(&kgdb_sstep_bp[0], x, 1); - if (ret < 0) - return ret; - ret = probe_kernel_read(&kgdb_sstep_bp[1], y, 1); - if (ret < 0) - return ret; - ret = probe_kernel_write(x, &arch_kgdb_ops.gdb_bpt_instr, 1); - if (ret < 0) - return ret; - ret = probe_kernel_write(y, &arch_kgdb_ops.gdb_bpt_instr, 1); - if (ret < 0) { - probe_kernel_write(kgdb_sstep_bp_addr[0], - &kgdb_sstep_bp[0], 1); - } else { - kgdb_sstep_thread = current_thread_info(); - } - debugger_local_cache_flushinv_one(x); - debugger_local_cache_flushinv_one(y); - return ret; -} - -/* - * Remove emplaced single-step breakpoints, returning true if we hit one of - * them. - */ -static bool kgdb_arch_undo_singlestep(struct pt_regs *regs) -{ - bool hit = false; - u8 *x = kgdb_sstep_bp_addr[0], *y = kgdb_sstep_bp_addr[1]; - u8 opcode; - - if (kgdb_sstep_thread == current_thread_info()) { - if (x) { - if (x == (u8 *)regs->pc) - hit = true; - if (probe_kernel_read(&opcode, x, - 1) < 0 || - opcode != 0xff) - BUG(); - probe_kernel_write(x, &kgdb_sstep_bp[0], 1); - debugger_local_cache_flushinv_one(x); - } - if (y) { - if (y == (u8 *)regs->pc) - hit = true; - if (probe_kernel_read(&opcode, y, - 1) < 0 || - opcode != 0xff) - BUG(); - probe_kernel_write(y, &kgdb_sstep_bp[1], 1); - debugger_local_cache_flushinv_one(y); - } - } - - kgdb_sstep_bp_addr[0] = NULL; - kgdb_sstep_bp_addr[1] = NULL; - kgdb_sstep_thread = NULL; - return hit; -} - -/* - * Catch a single-step-pending thread being deleted and make sure the global - * single-step state is cleared. At this point the breakpoints should have - * been removed by __switch_to(). - */ -void arch_release_thread_stack(unsigned long *stack) -{ - struct thread_info *ti = (void *)stack; - if (kgdb_sstep_thread == ti) { - kgdb_sstep_thread = NULL; - - /* However, we may now be running in degraded mode, with most - * of the CPUs disabled until such a time as KGDB is reentered, - * so force immediate reentry */ - kgdb_breakpoint(); - } -} - -/* - * Handle unknown packets and [CcsDk] packets - * - at this point breakpoints have been installed - */ -int kgdb_arch_handle_exception(int vector, int signo, int err_code, - char *remcom_in_buffer, char *remcom_out_buffer, - struct pt_regs *regs) -{ - long addr; - char *ptr; - - switch (remcom_in_buffer[0]) { - case 'c': - case 's': - /* try to read optional parameter, pc unchanged if no parm */ - ptr = &remcom_in_buffer[1]; - if (kgdb_hex2long(&ptr, &addr)) - regs->pc = addr; - case 'D': - case 'k': - atomic_set(&kgdb_cpu_doing_single_step, -1); - - if (remcom_in_buffer[0] == 's') { - kgdb_arch_do_singlestep(regs); - kgdb_single_step = 1; - atomic_set(&kgdb_cpu_doing_single_step, - raw_smp_processor_id()); - } - return 0; - } - return -1; /* this means that we do not want to exit from the handler */ -} - -/* - * Handle event interception - * - returns 0 if the exception should be skipped, -ERROR otherwise. - */ -int debugger_intercept(enum exception_code excep, int signo, int si_code, - struct pt_regs *regs) -{ - int ret; - - if (kgdb_arch_undo_singlestep(regs)) { - excep = EXCEP_TRAP; - signo = SIGTRAP; - si_code = TRAP_TRACE; - } - - ret = kgdb_handle_exception(excep, signo, si_code, regs); - - debugger_local_cache_flushinv(); - - return ret; -} - -/* - * Determine if we've hit a debugger special breakpoint - */ -int at_debugger_breakpoint(struct pt_regs *regs) -{ - return regs->pc == (unsigned long)&__arch_kgdb_breakpoint; -} - -/* - * Initialise kgdb - */ -int kgdb_arch_init(void) -{ - return 0; -} - -/* - * Do something, perhaps, but don't know what. - */ -void kgdb_arch_exit(void) -{ -} - -#ifdef CONFIG_SMP -void debugger_nmi_interrupt(struct pt_regs *regs, enum exception_code code) -{ - kgdb_nmicallback(arch_smp_processor_id(), regs); - debugger_local_cache_flushinv(); -} - -void kgdb_roundup_cpus(unsigned long flags) -{ - smp_jump_to_debugger(); -} -#endif diff --git a/arch/mn10300/kernel/kprobes.c b/arch/mn10300/kernel/kprobes.c deleted file mode 100644 index 0311a7fcea16..000000000000 --- a/arch/mn10300/kernel/kprobes.c +++ /dev/null @@ -1,656 +0,0 @@ -/* MN10300 Kernel probes implementation - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public Licence as published by - * the Free Software Foundation; either version 2 of the Licence, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public Licence for more details. - * - * You should have received a copy of the GNU General Public Licence - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#include <linux/kprobes.h> -#include <linux/ptrace.h> -#include <linux/spinlock.h> -#include <linux/preempt.h> -#include <linux/kdebug.h> -#include <asm/cacheflush.h> - -struct kretprobe_blackpoint kretprobe_blacklist[] = { { NULL, NULL } }; -const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist); - -/* kprobe_status settings */ -#define KPROBE_HIT_ACTIVE 0x00000001 -#define KPROBE_HIT_SS 0x00000002 - -static struct kprobe *cur_kprobe; -static unsigned long cur_kprobe_orig_pc; -static unsigned long cur_kprobe_next_pc; -static int cur_kprobe_ss_flags; -static unsigned long kprobe_status; -static kprobe_opcode_t cur_kprobe_ss_buf[MAX_INSN_SIZE + 2]; -static unsigned long cur_kprobe_bp_addr; - -DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; - - -/* singlestep flag bits */ -#define SINGLESTEP_BRANCH 1 -#define SINGLESTEP_PCREL 2 - -#define READ_BYTE(p, valp) \ - do { *(u8 *)(valp) = *(u8 *)(p); } while (0) - -#define READ_WORD16(p, valp) \ - do { \ - READ_BYTE((p), (valp)); \ - READ_BYTE((u8 *)(p) + 1, (u8 *)(valp) + 1); \ - } while (0) - -#define READ_WORD32(p, valp) \ - do { \ - READ_BYTE((p), (valp)); \ - READ_BYTE((u8 *)(p) + 1, (u8 *)(valp) + 1); \ - READ_BYTE((u8 *)(p) + 2, (u8 *)(valp) + 2); \ - READ_BYTE((u8 *)(p) + 3, (u8 *)(valp) + 3); \ - } while (0) - - -static const u8 mn10300_insn_sizes[256] = -{ - /* 1 2 3 4 5 6 7 8 9 a b c d e f */ - 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, /* 0 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 1 */ - 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, /* 2 */ - 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, /* 3 */ - 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, /* 4 */ - 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, /* 5 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 6 */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 7 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 8 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* 9 */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* a */ - 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, /* b */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 2, /* c */ - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* d */ - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* e */ - 0, 2, 2, 2, 2, 2, 2, 4, 0, 3, 0, 4, 0, 6, 7, 1 /* f */ -}; - -#define LT (1 << 0) -#define GT (1 << 1) -#define GE (1 << 2) -#define LE (1 << 3) -#define CS (1 << 4) -#define HI (1 << 5) -#define CC (1 << 6) -#define LS (1 << 7) -#define EQ (1 << 8) -#define NE (1 << 9) -#define RA (1 << 10) -#define VC (1 << 11) -#define VS (1 << 12) -#define NC (1 << 13) -#define NS (1 << 14) - -static const u16 cond_table[] = { - /* V C N Z */ - /* 0 0 0 0 */ (NE | NC | CC | VC | GE | GT | HI), - /* 0 0 0 1 */ (EQ | NC | CC | VC | GE | LE | LS), - /* 0 0 1 0 */ (NE | NS | CC | VC | LT | LE | HI), - /* 0 0 1 1 */ (EQ | NS | CC | VC | LT | LE | LS), - /* 0 1 0 0 */ (NE | NC | CS | VC | GE | GT | LS), - /* 0 1 0 1 */ (EQ | NC | CS | VC | GE | LE | LS), - /* 0 1 1 0 */ (NE | NS | CS | VC | LT | LE | LS), - /* 0 1 1 1 */ (EQ | NS | CS | VC | LT | LE | LS), - /* 1 0 0 0 */ (NE | NC | CC | VS | LT | LE | HI), - /* 1 0 0 1 */ (EQ | NC | CC | VS | LT | LE | LS), - /* 1 0 1 0 */ (NE | NS | CC | VS | GE | GT | HI), - /* 1 0 1 1 */ (EQ | NS | CC | VS | GE | LE | LS), - /* 1 1 0 0 */ (NE | NC | CS | VS | LT | LE | LS), - /* 1 1 0 1 */ (EQ | NC | CS | VS | LT | LE | LS), - /* 1 1 1 0 */ (NE | NS | CS | VS | GE | GT | LS), - /* 1 1 1 1 */ (EQ | NS | CS | VS | GE | LE | LS), -}; - -/* - * Calculate what the PC will be after executing next instruction - */ -static unsigned find_nextpc(struct pt_regs *regs, int *flags) -{ - unsigned size; - s8 x8; - s16 x16; - s32 x32; - u8 opc, *pc, *sp, *next; - - next = 0; - *flags = SINGLESTEP_PCREL; - - pc = (u8 *) regs->pc; - sp = (u8 *) (regs + 1); - opc = *pc; - - size = mn10300_insn_sizes[opc]; - if (size > 0) { - next = pc + size; - } else { - switch (opc) { - /* Bxx (d8,PC) */ - case 0xc0 ... 0xca: - x8 = 2; - if (cond_table[regs->epsw & 0xf] & (1 << (opc & 0xf))) - x8 = (s8)pc[1]; - next = pc + x8; - *flags |= SINGLESTEP_BRANCH; - break; - - /* JMP (d16,PC) or CALL (d16,PC) */ - case 0xcc: - case 0xcd: - READ_WORD16(pc + 1, &x16); - next = pc + x16; - *flags |= SINGLESTEP_BRANCH; - break; - - /* JMP (d32,PC) or CALL (d32,PC) */ - case 0xdc: - case 0xdd: - READ_WORD32(pc + 1, &x32); - next = pc + x32; - *flags |= SINGLESTEP_BRANCH; - break; - - /* RETF */ - case 0xde: - next = (u8 *)regs->mdr; - *flags &= ~SINGLESTEP_PCREL; - *flags |= SINGLESTEP_BRANCH; - break; - - /* RET */ - case 0xdf: - sp += pc[2]; - READ_WORD32(sp, &x32); - next = (u8 *)x32; - *flags &= ~SINGLESTEP_PCREL; - *flags |= SINGLESTEP_BRANCH; - break; - - case 0xf0: - next = pc + 2; - opc = pc[1]; - if (opc >= 0xf0 && opc <= 0xf7) { - /* JMP (An) / CALLS (An) */ - switch (opc & 3) { - case 0: - next = (u8 *)regs->a0; - break; - case 1: - next = (u8 *)regs->a1; - break; - case 2: - next = (u8 *)regs->a2; - break; - case 3: - next = (u8 *)regs->a3; - break; - } - *flags &= ~SINGLESTEP_PCREL; - *flags |= SINGLESTEP_BRANCH; - } else if (opc == 0xfc) { - /* RETS */ - READ_WORD32(sp, &x32); - next = (u8 *)x32; - *flags &= ~SINGLESTEP_PCREL; - *flags |= SINGLESTEP_BRANCH; - } else if (opc == 0xfd) { - /* RTI */ - READ_WORD32(sp + 4, &x32); - next = (u8 *)x32; - *flags &= ~SINGLESTEP_PCREL; - *flags |= SINGLESTEP_BRANCH; - } - break; - - /* potential 3-byte conditional branches */ - case 0xf8: - next = pc + 3; - opc = pc[1]; - if (opc >= 0xe8 && opc <= 0xeb && - (cond_table[regs->epsw & 0xf] & - (1 << ((opc & 0xf) + 3))) - ) { - READ_BYTE(pc+2, &x8); - next = pc + x8; - *flags |= SINGLESTEP_BRANCH; - } - break; - - case 0xfa: - if (pc[1] == 0xff) { - /* CALLS (d16,PC) */ - READ_WORD16(pc + 2, &x16); - next = pc + x16; - } else - next = pc + 4; - *flags |= SINGLESTEP_BRANCH; - break; - - case 0xfc: - x32 = 6; - if (pc[1] == 0xff) { - /* CALLS (d32,PC) */ - READ_WORD32(pc + 2, &x32); - } - next = pc + x32; - *flags |= SINGLESTEP_BRANCH; - break; - /* LXX (d8,PC) */ - /* SETLB - loads the next four bytes into the LIR reg */ - case 0xd0 ... 0xda: - case 0xdb: - panic("Can't singlestep Lxx/SETLB\n"); - break; - } - } - return (unsigned)next; - -} - -/* - * set up out of place singlestep of some branching instructions - */ -static unsigned __kprobes singlestep_branch_setup(struct pt_regs *regs) -{ - u8 opc, *pc, *sp, *next; - - next = NULL; - pc = (u8 *) regs->pc; - sp = (u8 *) (regs + 1); - - switch (pc[0]) { - case 0xc0 ... 0xca: /* Bxx (d8,PC) */ - case 0xcc: /* JMP (d16,PC) */ - case 0xdc: /* JMP (d32,PC) */ - case 0xf8: /* Bxx (d8,PC) 3-byte version */ - /* don't really need to do anything except cause trap */ - next = pc; - break; - - case 0xcd: /* CALL (d16,PC) */ - pc[1] = 5; - pc[2] = 0; - next = pc + 5; - break; - - case 0xdd: /* CALL (d32,PC) */ - pc[1] = 7; - pc[2] = 0; - pc[3] = 0; - pc[4] = 0; - next = pc + 7; - break; - - case 0xde: /* RETF */ - next = pc + 3; - regs->mdr = (unsigned) next; - break; - - case 0xdf: /* RET */ - sp += pc[2]; - next = pc + 3; - *(unsigned *)sp = (unsigned) next; - break; - - case 0xf0: - next = pc + 2; - opc = pc[1]; - if (opc >= 0xf0 && opc <= 0xf3) { - /* CALLS (An) */ - /* use CALLS (d16,PC) to avoid mucking with An */ - pc[0] = 0xfa; - pc[1] = 0xff; - pc[2] = 4; - pc[3] = 0; - next = pc + 4; - } else if (opc >= 0xf4 && opc <= 0xf7) { - /* JMP (An) */ - next = pc; - } else if (opc == 0xfc) { - /* RETS */ - next = pc + 2; - *(unsigned *) sp = (unsigned) next; - } else if (opc == 0xfd) { - /* RTI */ - next = pc + 2; - *(unsigned *)(sp + 4) = (unsigned) next; - } - break; - - case 0xfa: /* CALLS (d16,PC) */ - pc[2] = 4; - pc[3] = 0; - next = pc + 4; - break; - - case 0xfc: /* CALLS (d32,PC) */ - pc[2] = 6; - pc[3] = 0; - pc[4] = 0; - pc[5] = 0; - next = pc + 6; - break; - - case 0xd0 ... 0xda: /* LXX (d8,PC) */ - case 0xdb: /* SETLB */ - panic("Can't singlestep Lxx/SETLB\n"); - } - - return (unsigned) next; -} - -int __kprobes arch_prepare_kprobe(struct kprobe *p) -{ - return 0; -} - -void __kprobes arch_copy_kprobe(struct kprobe *p) -{ - memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE); -} - -void __kprobes arch_arm_kprobe(struct kprobe *p) -{ - *p->addr = BREAKPOINT_INSTRUCTION; - flush_icache_range((unsigned long) p->addr, - (unsigned long) p->addr + sizeof(kprobe_opcode_t)); -} - -void __kprobes arch_disarm_kprobe(struct kprobe *p) -{ -#ifndef CONFIG_MN10300_CACHE_SNOOP - mn10300_dcache_flush(); - mn10300_icache_inv(); -#endif -} - -void arch_remove_kprobe(struct kprobe *p) -{ -} - -static inline -void __kprobes disarm_kprobe(struct kprobe *p, struct pt_regs *regs) -{ - *p->addr = p->opcode; - regs->pc = (unsigned long) p->addr; -#ifndef CONFIG_MN10300_CACHE_SNOOP - mn10300_dcache_flush(); - mn10300_icache_inv(); -#endif -} - -static inline -void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) -{ - unsigned long nextpc; - - cur_kprobe_orig_pc = regs->pc; - memcpy(cur_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE); - regs->pc = (unsigned long) cur_kprobe_ss_buf; - - nextpc = find_nextpc(regs, &cur_kprobe_ss_flags); - if (cur_kprobe_ss_flags & SINGLESTEP_PCREL) - cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc); - else - cur_kprobe_next_pc = nextpc; - - /* branching instructions need special handling */ - if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) - nextpc = singlestep_branch_setup(regs); - - cur_kprobe_bp_addr = nextpc; - - *(u8 *) nextpc = BREAKPOINT_INSTRUCTION; - mn10300_dcache_flush_range2((unsigned) cur_kprobe_ss_buf, - sizeof(cur_kprobe_ss_buf)); - mn10300_icache_inv(); -} - -static inline int __kprobes kprobe_handler(struct pt_regs *regs) -{ - struct kprobe *p; - int ret = 0; - unsigned int *addr = (unsigned int *) regs->pc; - - /* We're in an interrupt, but this is clear and BUG()-safe. */ - preempt_disable(); - - /* Check we're not actually recursing */ - if (kprobe_running()) { - /* We *are* holding lock here, so this is safe. - Disarm the probe we just hit, and ignore it. */ - p = get_kprobe(addr); - if (p) { - disarm_kprobe(p, regs); - ret = 1; - } else { - p = cur_kprobe; - if (p->break_handler && p->break_handler(p, regs)) - goto ss_probe; - } - /* If it's not ours, can't be delete race, (we hold lock). */ - goto no_kprobe; - } - - p = get_kprobe(addr); - if (!p) { - if (*addr != BREAKPOINT_INSTRUCTION) { - /* The breakpoint instruction was removed right after - * we hit it. Another cpu has removed either a - * probepoint or a debugger breakpoint at this address. - * In either case, no further handling of this - * interrupt is appropriate. - */ - ret = 1; - } - /* Not one of ours: let kernel handle it */ - goto no_kprobe; - } - - kprobe_status = KPROBE_HIT_ACTIVE; - cur_kprobe = p; - if (p->pre_handler(p, regs)) { - /* handler has already set things up, so skip ss setup */ - return 1; - } - -ss_probe: - prepare_singlestep(p, regs); - kprobe_status = KPROBE_HIT_SS; - return 1; - -no_kprobe: - preempt_enable_no_resched(); - return ret; -} - -/* - * Called after single-stepping. p->addr is the address of the - * instruction whose first byte has been replaced by the "breakpoint" - * instruction. To avoid the SMP problems that can occur when we - * temporarily put back the original opcode to single-step, we - * single-stepped a copy of the instruction. The address of this - * copy is p->ainsn.insn. - */ -static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) -{ - /* we may need to fixup regs/stack after singlestepping a call insn */ - if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) { - regs->pc = cur_kprobe_orig_pc; - switch (p->ainsn.insn[0]) { - case 0xcd: /* CALL (d16,PC) */ - *(unsigned *) regs->sp = regs->mdr = regs->pc + 5; - break; - case 0xdd: /* CALL (d32,PC) */ - /* fixup mdr and return address on stack */ - *(unsigned *) regs->sp = regs->mdr = regs->pc + 7; - break; - case 0xf0: - if (p->ainsn.insn[1] >= 0xf0 && - p->ainsn.insn[1] <= 0xf3) { - /* CALLS (An) */ - /* fixup MDR and return address on stack */ - regs->mdr = regs->pc + 2; - *(unsigned *) regs->sp = regs->mdr; - } - break; - - case 0xfa: /* CALLS (d16,PC) */ - /* fixup MDR and return address on stack */ - *(unsigned *) regs->sp = regs->mdr = regs->pc + 4; - break; - - case 0xfc: /* CALLS (d32,PC) */ - /* fixup MDR and return address on stack */ - *(unsigned *) regs->sp = regs->mdr = regs->pc + 6; - break; - } - } - - regs->pc = cur_kprobe_next_pc; - cur_kprobe_bp_addr = 0; -} - -static inline int __kprobes post_kprobe_handler(struct pt_regs *regs) -{ - if (!kprobe_running()) - return 0; - - if (cur_kprobe->post_handler) - cur_kprobe->post_handler(cur_kprobe, regs, 0); - - resume_execution(cur_kprobe, regs); - reset_current_kprobe(); - preempt_enable_no_resched(); - return 1; -} - -/* Interrupts disabled, kprobe_lock held. */ -static inline -int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) -{ - if (cur_kprobe->fault_handler && - cur_kprobe->fault_handler(cur_kprobe, regs, trapnr)) - return 1; - - if (kprobe_status & KPROBE_HIT_SS) { - resume_execution(cur_kprobe, regs); - reset_current_kprobe(); - preempt_enable_no_resched(); - } - return 0; -} - -/* - * Wrapper routine to for handling exceptions. - */ -int __kprobes kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data) -{ - struct die_args *args = data; - - switch (val) { - case DIE_BREAKPOINT: - if (cur_kprobe_bp_addr != args->regs->pc) { - if (kprobe_handler(args->regs)) - return NOTIFY_STOP; - } else { - if (post_kprobe_handler(args->regs)) - return NOTIFY_STOP; - } - break; - case DIE_GPF: - if (kprobe_running() && - kprobe_fault_handler(args->regs, args->trapnr)) - return NOTIFY_STOP; - break; - default: - break; - } - return NOTIFY_DONE; -} - -/* Jprobes support. */ -static struct pt_regs jprobe_saved_regs; -static struct pt_regs *jprobe_saved_regs_location; -static kprobe_opcode_t jprobe_saved_stack[MAX_STACK_SIZE]; - -int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) -{ - struct jprobe *jp = container_of(p, struct jprobe, kp); - - jprobe_saved_regs_location = regs; - memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs)); - - /* Save a whole stack frame, this gets arguments - * pushed onto the stack after using up all the - * arg registers. - */ - memcpy(&jprobe_saved_stack, regs + 1, sizeof(jprobe_saved_stack)); - - /* setup return addr to the jprobe handler routine */ - regs->pc = (unsigned long) jp->entry; - return 1; -} - -void __kprobes jprobe_return(void) -{ - void *orig_sp = jprobe_saved_regs_location + 1; - - preempt_enable_no_resched(); - asm volatile(" mov %0,sp\n" - ".globl jprobe_return_bp_addr\n" - "jprobe_return_bp_addr:\n\t" - " .byte 0xff\n" - : : "d" (orig_sp)); -} - -extern void jprobe_return_bp_addr(void); - -int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) -{ - u8 *addr = (u8 *) regs->pc; - - if (addr == (u8 *) jprobe_return_bp_addr) { - if (jprobe_saved_regs_location != regs) { - printk(KERN_ERR"JPROBE:" - " Current regs (%p) does not match saved regs" - " (%p).\n", - regs, jprobe_saved_regs_location); - BUG(); - } - - /* Restore old register state. - */ - memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs)); - - memcpy(regs + 1, &jprobe_saved_stack, - sizeof(jprobe_saved_stack)); - return 1; - } - return 0; -} - -int __init arch_init_kprobes(void) -{ - return 0; -} diff --git a/arch/mn10300/kernel/mn10300-debug.c b/arch/mn10300/kernel/mn10300-debug.c deleted file mode 100644 index bd8196478cbc..000000000000 --- a/arch/mn10300/kernel/mn10300-debug.c +++ /dev/null @@ -1,58 +0,0 @@ -/* Debugging stuff for the MN10300-based processors - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <asm/serial-regs.h> - -#undef MN10300_CONSOLE_ON_SERIO - -/* - * write a string directly through one of the serial ports on-board the MN10300 - */ -#ifdef MN10300_CONSOLE_ON_SERIO -void debug_to_serial_mnser(const char *p, int n) -{ - char ch; - - for (; n > 0; n--) { - ch = *p++; - -#if MN10300_CONSOLE_ON_SERIO == 0 - while (SC0STR & (SC01STR_TBF)) continue; - SC0TXB = ch; - while (SC0STR & (SC01STR_TBF)) continue; - if (ch == 0x0a) { - SC0TXB = 0x0d; - while (SC0STR & (SC01STR_TBF)) continue; - } - -#elif MN10300_CONSOLE_ON_SERIO == 1 - while (SC1STR & (SC01STR_TBF)) continue; - SC1TXB = ch; - while (SC1STR & (SC01STR_TBF)) continue; - if (ch == 0x0a) { - SC1TXB = 0x0d; - while (SC1STR & (SC01STR_TBF)) continue; - } - -#elif MN10300_CONSOLE_ON_SERIO == 2 - while (SC2STR & (SC2STR_TBF)) continue; - SC2TXB = ch; - while (SC2STR & (SC2STR_TBF)) continue; - if (ch == 0x0a) { - SC2TXB = 0x0d; - while (SC2STR & (SC2STR_TBF)) continue; - } - -#endif - } -} -#endif - diff --git a/arch/mn10300/kernel/mn10300-serial-low.S b/arch/mn10300/kernel/mn10300-serial-low.S deleted file mode 100644 index b95e76caf4fa..000000000000 --- a/arch/mn10300/kernel/mn10300-serial-low.S +++ /dev/null @@ -1,194 +0,0 @@ -############################################################################### -# -# Virtual DMA driver for MN10300 serial ports -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/page.h> -#include <asm/smp.h> -#include <asm/cpu-regs.h> -#include <asm/frame.inc> -#include <asm/timer-regs.h> -#include <proc/cache.h> -#include <unit/timex.h> -#include "mn10300-serial.h" - -#define SCxCTR 0x00 -#define SCxICR 0x04 -#define SCxTXB 0x08 -#define SCxRXB 0x09 -#define SCxSTR 0x0c -#define SCxTIM 0x0d - - .text - -############################################################################### -# -# serial port interrupt virtual DMA entry point -# - intended to run at interrupt priority 1 (not affected by local_irq_disable) -# -############################################################################### - .balign L1_CACHE_BYTES -ENTRY(mn10300_serial_vdma_interrupt) -# or EPSW_IE,psw # permit overriding by - # debugging interrupts - movm [d2,d3,a2,a3,exreg0],(sp) - - movhu (IAGR),a2 # see if which interrupt is - # pending - and IAGR_GN,a2 - add a2,a2 - add mn10300_serial_int_tbl,a2 - - mov (a2+),a3 - mov (__iobase,a3),e2 - mov (a2),a2 - jmp (a2) - -############################################################################### -# -# serial port receive interrupt virtual DMA entry point -# - intended to run at interrupt priority 1 (not affected by local_irq_disable) -# - stores data/status byte pairs in the ring buffer -# - induces a scheduler tick timer interrupt when done, which we then subvert -# on entry: -# A3 struct mn10300_serial_port * -# E2 I/O port base -# -############################################################################### -ENTRY(mn10300_serial_vdma_rx_handler) - mov (__rx_icr,a3),e3 - mov GxICR_DETECT,d2 - movbu d2,(e3) # ACK the interrupt - movhu (e3),d2 # flush - - mov (__rx_inp,a3),d3 - mov d3,a2 - add 2,d3 - and MNSC_BUFFER_SIZE-1,d3 - mov (__rx_outp,a3),d2 - cmp d3,d2 - beq mnsc_vdma_rx_overflow - - mov (__rx_buffer,a3),d2 - add d2,a2 - movhu (SCxSTR,e2),d2 - movbu d2,(1,a2) - movbu (SCxRXB,e2),d2 - movbu d2,(a2) - mov d3,(__rx_inp,a3) - bset MNSCx_RX_AVAIL,(__intr_flags,a3) - -mnsc_vdma_rx_done: - mov (__tm_icr,a3),a2 - mov GxICR_LEVEL_6|GxICR_ENABLE|GxICR_REQUEST|GxICR_DETECT,d2 - movhu d2,(a2) # request a slow interrupt - movhu (a2),d2 # flush - - movm (sp),[d2,d3,a2,a3,exreg0] - rti - -mnsc_vdma_rx_overflow: - bset MNSCx_RX_OVERF,(__intr_flags,a3) - bra mnsc_vdma_rx_done - -############################################################################### -# -# serial port transmit interrupt virtual DMA entry point -# - intended to run at interrupt priority 1 (not affected by local_irq_disable) -# - retrieves data bytes from the ring buffer and passes them to the serial port -# - induces a scheduler tick timer interrupt when done, which we then subvert -# A3 struct mn10300_serial_port * -# E2 I/O port base -# -############################################################################### - .balign L1_CACHE_BYTES -ENTRY(mn10300_serial_vdma_tx_handler) - mov (__tx_icr,a3),e3 - mov GxICR_DETECT,d2 - movbu d2,(e3) # ACK the interrupt - movhu (e3),d2 # flush - - btst 0xFF,(__tx_flags,a3) # handle transmit flags - bne mnsc_vdma_tx_flags - - movbu (SCxSTR,e2),d2 # don't try and transmit a char if the - # buffer is not empty - btst SC01STR_TBF,d2 # (may have tried to jumpstart) - bne mnsc_vdma_tx_noint - - movbu (__tx_xchar,a3),d2 # handle hi-pri XON/XOFF - or d2,d2 - bne mnsc_vdma_tx_xchar - - mov (__uart_state,a3),a2 # see if the TTY Tx queue has anything in it - mov (__xmit_tail,a2),d3 - mov (__xmit_head,a2),d2 - cmp d3,d2 - beq mnsc_vdma_tx_empty - - mov (__xmit_buffer,a2),d2 # get a char from the buffer and - # transmit it - movbu (d3,d2),d2 - movbu d2,(SCxTXB,e2) # Tx - - inc d3 # advance the buffer pointer - and __UART_XMIT_SIZE-1,d3 - mov (__xmit_head,a2),d2 - mov d3,(__xmit_tail,a2) - - sub d3,d2 # see if we've written everything - beq mnsc_vdma_tx_empty - - and __UART_XMIT_SIZE-1,d2 # see if we just made a hole - cmp __UART_XMIT_SIZE-2,d2 - beq mnsc_vdma_tx_made_hole - -mnsc_vdma_tx_done: - mov (__tm_icr,a3),a2 - mov GxICR_LEVEL_6|GxICR_ENABLE|GxICR_REQUEST|GxICR_DETECT,d2 - movhu d2,(a2) # request a slow interrupt - movhu (a2),d2 # flush - -mnsc_vdma_tx_noint: - movm (sp),[d2,d3,a2,a3,exreg0] - rti - -mnsc_vdma_tx_empty: - mov +(NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL)|GxICR_DETECT),d2 - movhu d2,(e3) # disable the interrupt - movhu (e3),d2 # flush - - bset MNSCx_TX_EMPTY,(__intr_flags,a3) - bra mnsc_vdma_tx_done - -mnsc_vdma_tx_flags: - btst MNSCx_TX_STOP,(__tx_flags,a3) - bne mnsc_vdma_tx_stop - movhu (SCxCTR,e2),d2 # turn on break mode - or SC01CTR_BKE,d2 - movhu d2,(SCxCTR,e2) -mnsc_vdma_tx_stop: - mov +(NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL)|GxICR_DETECT),d2 - movhu d2,(e3) # disable transmit interrupts on this - # channel - movhu (e3),d2 # flush - bra mnsc_vdma_tx_noint - -mnsc_vdma_tx_xchar: - bclr 0xff,(__tx_xchar,a3) - movbu d2,(SCxTXB,e2) - bra mnsc_vdma_tx_done - -mnsc_vdma_tx_made_hole: - bset MNSCx_TX_SPACE,(__intr_flags,a3) - bra mnsc_vdma_tx_done diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c deleted file mode 100644 index 4994b570dfd9..000000000000 --- a/arch/mn10300/kernel/mn10300-serial.c +++ /dev/null @@ -1,1790 +0,0 @@ -/* MN10300 On-chip serial port UART driver - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -static const char serial_name[] = "MN10300 Serial driver"; -static const char serial_version[] = "mn10300_serial-1.0"; -static const char serial_revdate[] = "2007-11-06"; - -#if defined(CONFIG_MN10300_TTYSM_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - -#include <linux/module.h> -#include <linux/serial.h> -#include <linux/circ_buf.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/major.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/console.h> -#include <linux/sysrq.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/bitops.h> -#include <asm/serial-regs.h> -#include <unit/timex.h> -#include "mn10300-serial.h" - -#ifdef CONFIG_SMP -#undef GxICR -#define GxICR(X) CROSS_GxICR(X, 0) -#endif /* CONFIG_SMP */ - -#define kenter(FMT, ...) \ - printk(KERN_DEBUG "-->%s(" FMT ")\n", __func__, ##__VA_ARGS__) -#define _enter(FMT, ...) \ - no_printk(KERN_DEBUG "-->%s(" FMT ")\n", __func__, ##__VA_ARGS__) -#define kdebug(FMT, ...) \ - printk(KERN_DEBUG "--- " FMT "\n", ##__VA_ARGS__) -#define _debug(FMT, ...) \ - no_printk(KERN_DEBUG "--- " FMT "\n", ##__VA_ARGS__) -#define kproto(FMT, ...) \ - printk(KERN_DEBUG "### MNSERIAL " FMT " ###\n", ##__VA_ARGS__) -#define _proto(FMT, ...) \ - no_printk(KERN_DEBUG "### MNSERIAL " FMT " ###\n", ##__VA_ARGS__) - -#ifndef CODMSB -/* c_cflag bit meaning */ -#define CODMSB 004000000000 /* change Transfer bit-order */ -#endif - -#define NR_UARTS 3 - -#ifdef CONFIG_MN10300_TTYSM_CONSOLE -static void mn10300_serial_console_write(struct console *co, - const char *s, unsigned count); -static int __init mn10300_serial_console_setup(struct console *co, - char *options); - -static struct uart_driver mn10300_serial_driver; -static struct console mn10300_serial_console = { - .name = "ttySM", - .write = mn10300_serial_console_write, - .device = uart_console_device, - .setup = mn10300_serial_console_setup, - .flags = CON_PRINTBUFFER, - .index = -1, - .data = &mn10300_serial_driver, -}; -#endif - -static struct uart_driver mn10300_serial_driver = { - .owner = NULL, - .driver_name = "mn10300-serial", - .dev_name = "ttySM", - .major = TTY_MAJOR, - .minor = 128, - .nr = NR_UARTS, -#ifdef CONFIG_MN10300_TTYSM_CONSOLE - .cons = &mn10300_serial_console, -#endif -}; - -static unsigned int mn10300_serial_tx_empty(struct uart_port *); -static void mn10300_serial_set_mctrl(struct uart_port *, unsigned int mctrl); -static unsigned int mn10300_serial_get_mctrl(struct uart_port *); -static void mn10300_serial_stop_tx(struct uart_port *); -static void mn10300_serial_start_tx(struct uart_port *); -static void mn10300_serial_send_xchar(struct uart_port *, char ch); -static void mn10300_serial_stop_rx(struct uart_port *); -static void mn10300_serial_enable_ms(struct uart_port *); -static void mn10300_serial_break_ctl(struct uart_port *, int ctl); -static int mn10300_serial_startup(struct uart_port *); -static void mn10300_serial_shutdown(struct uart_port *); -static void mn10300_serial_set_termios(struct uart_port *, - struct ktermios *new, - struct ktermios *old); -static const char *mn10300_serial_type(struct uart_port *); -static void mn10300_serial_release_port(struct uart_port *); -static int mn10300_serial_request_port(struct uart_port *); -static void mn10300_serial_config_port(struct uart_port *, int); -static int mn10300_serial_verify_port(struct uart_port *, - struct serial_struct *); -#ifdef CONFIG_CONSOLE_POLL -static void mn10300_serial_poll_put_char(struct uart_port *, unsigned char); -static int mn10300_serial_poll_get_char(struct uart_port *); -#endif - -static const struct uart_ops mn10300_serial_ops = { - .tx_empty = mn10300_serial_tx_empty, - .set_mctrl = mn10300_serial_set_mctrl, - .get_mctrl = mn10300_serial_get_mctrl, - .stop_tx = mn10300_serial_stop_tx, - .start_tx = mn10300_serial_start_tx, - .send_xchar = mn10300_serial_send_xchar, - .stop_rx = mn10300_serial_stop_rx, - .enable_ms = mn10300_serial_enable_ms, - .break_ctl = mn10300_serial_break_ctl, - .startup = mn10300_serial_startup, - .shutdown = mn10300_serial_shutdown, - .set_termios = mn10300_serial_set_termios, - .type = mn10300_serial_type, - .release_port = mn10300_serial_release_port, - .request_port = mn10300_serial_request_port, - .config_port = mn10300_serial_config_port, - .verify_port = mn10300_serial_verify_port, -#ifdef CONFIG_CONSOLE_POLL - .poll_put_char = mn10300_serial_poll_put_char, - .poll_get_char = mn10300_serial_poll_get_char, -#endif -}; - -static irqreturn_t mn10300_serial_interrupt(int irq, void *dev_id); - -/* - * the first on-chip serial port: ttySM0 (aka SIF0) - */ -#ifdef CONFIG_MN10300_TTYSM0 -struct mn10300_serial_port mn10300_serial_port_sif0 = { - .uart.ops = &mn10300_serial_ops, - .uart.membase = (void __iomem *) &SC0CTR, - .uart.mapbase = (unsigned long) &SC0CTR, - .uart.iotype = UPIO_MEM, - .uart.irq = 0, - .uart.uartclk = 0, /* MN10300_IOCLK, */ - .uart.fifosize = 1, - .uart.flags = UPF_BOOT_AUTOCONF, - .uart.line = 0, - .uart.type = PORT_MN10300, - .uart.lock = - __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif0.uart.lock), - .name = "ttySM0", - ._iobase = &SC0CTR, - ._control = &SC0CTR, - ._status = (volatile u8 *)&SC0STR, - ._intr = &SC0ICR, - ._rxb = &SC0RXB, - ._txb = &SC0TXB, - .rx_name = "ttySM0:Rx", - .tx_name = "ttySM0:Tx", -#if defined(CONFIG_MN10300_TTYSM0_TIMER8) - .tm_name = "ttySM0:Timer8", - ._tmxmd = &TM8MD, - ._tmxbr = &TM8BR, - ._tmicr = &TM8ICR, - .tm_irq = TM8IRQ, - .div_timer = MNSCx_DIV_TIMER_16BIT, -#elif defined(CONFIG_MN10300_TTYSM0_TIMER0) - .tm_name = "ttySM0:Timer0", - ._tmxmd = &TM0MD, - ._tmxbr = (volatile u16 *)&TM0BR, - ._tmicr = &TM0ICR, - .tm_irq = TM0IRQ, - .div_timer = MNSCx_DIV_TIMER_8BIT, -#elif defined(CONFIG_MN10300_TTYSM0_TIMER2) - .tm_name = "ttySM0:Timer2", - ._tmxmd = &TM2MD, - ._tmxbr = (volatile u16 *)&TM2BR, - ._tmicr = &TM2ICR, - .tm_irq = TM2IRQ, - .div_timer = MNSCx_DIV_TIMER_8BIT, -#else -#error "Unknown config for ttySM0" -#endif - .rx_irq = SC0RXIRQ, - .tx_irq = SC0TXIRQ, - .rx_icr = &GxICR(SC0RXIRQ), - .tx_icr = &GxICR(SC0TXIRQ), - .clock_src = MNSCx_CLOCK_SRC_IOCLK, - .options = 0, -#ifdef CONFIG_GDBSTUB_ON_TTYSM0 - .gdbstub = 1, -#endif -}; -#endif /* CONFIG_MN10300_TTYSM0 */ - -/* - * the second on-chip serial port: ttySM1 (aka SIF1) - */ -#ifdef CONFIG_MN10300_TTYSM1 -struct mn10300_serial_port mn10300_serial_port_sif1 = { - .uart.ops = &mn10300_serial_ops, - .uart.membase = (void __iomem *) &SC1CTR, - .uart.mapbase = (unsigned long) &SC1CTR, - .uart.iotype = UPIO_MEM, - .uart.irq = 0, - .uart.uartclk = 0, /* MN10300_IOCLK, */ - .uart.fifosize = 1, - .uart.flags = UPF_BOOT_AUTOCONF, - .uart.line = 1, - .uart.type = PORT_MN10300, - .uart.lock = - __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif1.uart.lock), - .name = "ttySM1", - ._iobase = &SC1CTR, - ._control = &SC1CTR, - ._status = (volatile u8 *)&SC1STR, - ._intr = &SC1ICR, - ._rxb = &SC1RXB, - ._txb = &SC1TXB, - .rx_name = "ttySM1:Rx", - .tx_name = "ttySM1:Tx", -#if defined(CONFIG_MN10300_TTYSM1_TIMER9) - .tm_name = "ttySM1:Timer9", - ._tmxmd = &TM9MD, - ._tmxbr = &TM9BR, - ._tmicr = &TM9ICR, - .tm_irq = TM9IRQ, - .div_timer = MNSCx_DIV_TIMER_16BIT, -#elif defined(CONFIG_MN10300_TTYSM1_TIMER3) - .tm_name = "ttySM1:Timer3", - ._tmxmd = &TM3MD, - ._tmxbr = (volatile u16 *)&TM3BR, - ._tmicr = &TM3ICR, - .tm_irq = TM3IRQ, - .div_timer = MNSCx_DIV_TIMER_8BIT, -#elif defined(CONFIG_MN10300_TTYSM1_TIMER12) - .tm_name = "ttySM1/Timer12", - ._tmxmd = &TM12MD, - ._tmxbr = &TM12BR, - ._tmicr = &TM12ICR, - .tm_irq = TM12IRQ, - .div_timer = MNSCx_DIV_TIMER_16BIT, -#else -#error "Unknown config for ttySM1" -#endif - .rx_irq = SC1RXIRQ, - .tx_irq = SC1TXIRQ, - .rx_icr = &GxICR(SC1RXIRQ), - .tx_icr = &GxICR(SC1TXIRQ), - .clock_src = MNSCx_CLOCK_SRC_IOCLK, - .options = 0, -#ifdef CONFIG_GDBSTUB_ON_TTYSM1 - .gdbstub = 1, -#endif -}; -#endif /* CONFIG_MN10300_TTYSM1 */ - -/* - * the third on-chip serial port: ttySM2 (aka SIF2) - */ -#ifdef CONFIG_MN10300_TTYSM2 -struct mn10300_serial_port mn10300_serial_port_sif2 = { - .uart.ops = &mn10300_serial_ops, - .uart.membase = (void __iomem *) &SC2CTR, - .uart.mapbase = (unsigned long) &SC2CTR, - .uart.iotype = UPIO_MEM, - .uart.irq = 0, - .uart.uartclk = 0, /* MN10300_IOCLK, */ - .uart.fifosize = 1, - .uart.flags = UPF_BOOT_AUTOCONF, - .uart.line = 2, -#ifdef CONFIG_MN10300_TTYSM2_CTS - .uart.type = PORT_MN10300_CTS, -#else - .uart.type = PORT_MN10300, -#endif - .uart.lock = - __SPIN_LOCK_UNLOCKED(mn10300_serial_port_sif2.uart.lock), - .name = "ttySM2", - ._iobase = &SC2CTR, - ._control = &SC2CTR, - ._status = (volatile u8 *)&SC2STR, - ._intr = &SC2ICR, - ._rxb = &SC2RXB, - ._txb = &SC2TXB, - .rx_name = "ttySM2:Rx", - .tx_name = "ttySM2:Tx", -#if defined(CONFIG_MN10300_TTYSM2_TIMER10) - .tm_name = "ttySM2/Timer10", - ._tmxmd = &TM10MD, - ._tmxbr = &TM10BR, - ._tmicr = &TM10ICR, - .tm_irq = TM10IRQ, - .div_timer = MNSCx_DIV_TIMER_16BIT, -#elif defined(CONFIG_MN10300_TTYSM2_TIMER9) - .tm_name = "ttySM2/Timer9", - ._tmxmd = &TM9MD, - ._tmxbr = &TM9BR, - ._tmicr = &TM9ICR, - .tm_irq = TM9IRQ, - .div_timer = MNSCx_DIV_TIMER_16BIT, -#elif defined(CONFIG_MN10300_TTYSM2_TIMER1) - .tm_name = "ttySM2/Timer1", - ._tmxmd = &TM1MD, - ._tmxbr = (volatile u16 *)&TM1BR, - ._tmicr = &TM1ICR, - .tm_irq = TM1IRQ, - .div_timer = MNSCx_DIV_TIMER_8BIT, -#elif defined(CONFIG_MN10300_TTYSM2_TIMER3) - .tm_name = "ttySM2/Timer3", - ._tmxmd = &TM3MD, - ._tmxbr = (volatile u16 *)&TM3BR, - ._tmicr = &TM3ICR, - .tm_irq = TM3IRQ, - .div_timer = MNSCx_DIV_TIMER_8BIT, -#else -#error "Unknown config for ttySM2" -#endif - .rx_irq = SC2RXIRQ, - .tx_irq = SC2TXIRQ, - .rx_icr = &GxICR(SC2RXIRQ), - .tx_icr = &GxICR(SC2TXIRQ), - .clock_src = MNSCx_CLOCK_SRC_IOCLK, -#ifdef CONFIG_MN10300_TTYSM2_CTS - .options = MNSCx_OPT_CTS, -#else - .options = 0, -#endif -#ifdef CONFIG_GDBSTUB_ON_TTYSM2 - .gdbstub = 1, -#endif -}; -#endif /* CONFIG_MN10300_TTYSM2 */ - - -/* - * list of available serial ports - */ -struct mn10300_serial_port *mn10300_serial_ports[NR_UARTS + 1] = { -#ifdef CONFIG_MN10300_TTYSM0 - [0] = &mn10300_serial_port_sif0, -#endif -#ifdef CONFIG_MN10300_TTYSM1 - [1] = &mn10300_serial_port_sif1, -#endif -#ifdef CONFIG_MN10300_TTYSM2 - [2] = &mn10300_serial_port_sif2, -#endif - [NR_UARTS] = NULL, -}; - - -/* - * we abuse the serial ports' baud timers' interrupt lines to get the ability - * to deliver interrupts to userspace as we use the ports' interrupt lines to - * do virtual DMA on account of the ports having no hardware FIFOs - * - * we can generate an interrupt manually in the assembly stubs by writing to - * the enable and detect bits in the interrupt control register, so all we need - * to do here is disable the interrupt line - * - * note that we can't just leave the line enabled as the baud rate timer *also* - * generates interrupts - */ -static void mn10300_serial_mask_ack(unsigned int irq) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - GxICR(irq) = GxICR_LEVEL_6; - tmp = GxICR(irq); /* flush write buffer */ - arch_local_irq_restore(flags); -} - -static void mn10300_serial_chip_mask_ack(struct irq_data *d) -{ - mn10300_serial_mask_ack(d->irq); -} - -static void mn10300_serial_nop(struct irq_data *d) -{ -} - -static struct irq_chip mn10300_serial_pic = { - .name = "mnserial", - .irq_ack = mn10300_serial_chip_mask_ack, - .irq_mask = mn10300_serial_chip_mask_ack, - .irq_mask_ack = mn10300_serial_chip_mask_ack, - .irq_unmask = mn10300_serial_nop, -}; - -static void mn10300_serial_low_mask(struct irq_data *d) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - GxICR(d->irq) = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL); - tmp = GxICR(d->irq); /* flush write buffer */ - arch_local_irq_restore(flags); -} - -static void mn10300_serial_low_unmask(struct irq_data *d) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - GxICR(d->irq) = - NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL) | GxICR_ENABLE; - tmp = GxICR(d->irq); /* flush write buffer */ - arch_local_irq_restore(flags); -} - -static struct irq_chip mn10300_serial_low_pic = { - .name = "mnserial-low", - .irq_mask = mn10300_serial_low_mask, - .irq_unmask = mn10300_serial_low_unmask, -}; - -/* - * serial virtual DMA interrupt jump table - */ -struct mn10300_serial_int mn10300_serial_int_tbl[NR_IRQS]; - -static void mn10300_serial_dis_tx_intr(struct mn10300_serial_port *port) -{ - int retries = 100; - u16 x; - - /* nothing to do if irq isn't set up */ - if (!mn10300_serial_int_tbl[port->tx_irq].port) - return; - - port->tx_flags |= MNSCx_TX_STOP; - mb(); - - /* - * Here we wait for the irq to be disabled. Either it already is - * disabled or we wait some number of retries for the VDMA handler - * to disable it. The retries give the VDMA handler enough time to - * run to completion if it was already in progress. If the VDMA IRQ - * is enabled but the handler is not yet running when arrive here, - * the STOP flag will prevent the handler from conflicting with the - * driver code following this loop. - */ - while ((*port->tx_icr & GxICR_ENABLE) && retries-- > 0) - ; - if (retries <= 0) { - *port->tx_icr = - NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL); - x = *port->tx_icr; - } -} - -static void mn10300_serial_en_tx_intr(struct mn10300_serial_port *port) -{ - u16 x; - - /* nothing to do if irq isn't set up */ - if (!mn10300_serial_int_tbl[port->tx_irq].port) - return; - - /* stop vdma irq if not already stopped */ - if (!(port->tx_flags & MNSCx_TX_STOP)) - mn10300_serial_dis_tx_intr(port); - - port->tx_flags &= ~MNSCx_TX_STOP; - mb(); - - *port->tx_icr = - NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL) | - GxICR_ENABLE | GxICR_REQUEST | GxICR_DETECT; - x = *port->tx_icr; -} - -static void mn10300_serial_dis_rx_intr(struct mn10300_serial_port *port) -{ - unsigned long flags; - u16 x; - - flags = arch_local_cli_save(); - *port->rx_icr = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL); - x = *port->rx_icr; - arch_local_irq_restore(flags); -} - -/* - * multi-bit equivalent of test_and_clear_bit() - */ -static int mask_test_and_clear(volatile u8 *ptr, u8 mask) -{ - u32 epsw; - asm volatile(" bclr %1,(%2) \n" - " mov epsw,%0 \n" - : "=d"(epsw) : "d"(mask), "a"(ptr) - : "cc", "memory"); - return !(epsw & EPSW_FLAG_Z); -} - -/* - * receive chars from the ring buffer for this serial port - * - must do break detection here (not done in the UART) - */ -static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port) -{ - struct uart_icount *icount = &port->uart.icount; - struct tty_port *tport = &port->uart.state->port; - unsigned ix; - int count; - u8 st, ch, push, status, overrun; - - _enter("%s", port->name); - - push = 0; - - count = CIRC_CNT(port->rx_inp, port->rx_outp, MNSC_BUFFER_SIZE); - count = tty_buffer_request_room(tport, count); - if (count == 0) { - if (!tport->low_latency) - tty_flip_buffer_push(tport); - return; - } - -try_again: - /* pull chars out of the hat */ - ix = READ_ONCE(port->rx_outp); - if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0) { - if (push && !tport->low_latency) - tty_flip_buffer_push(tport); - return; - } - - /* READ_ONCE() enforces dependency, but dangerous through integer!!! */ - ch = port->rx_buffer[ix++]; - st = port->rx_buffer[ix++]; - smp_mb(); - port->rx_outp = ix & (MNSC_BUFFER_SIZE - 1); - port->uart.icount.rx++; - - st &= SC01STR_FEF | SC01STR_PEF | SC01STR_OEF; - status = 0; - overrun = 0; - - /* the UART doesn't detect BREAK, so we have to do that ourselves - * - it starts as a framing error on a NUL character - * - then we count another two NUL characters before issuing TTY_BREAK - * - then we end on a normal char or one that has all the bottom bits - * zero and the top bits set - */ - switch (port->rx_brk) { - case 0: - /* not breaking at the moment */ - break; - - case 1: - if (st & SC01STR_FEF && ch == 0) { - port->rx_brk = 2; - goto try_again; - } - goto not_break; - - case 2: - if (st & SC01STR_FEF && ch == 0) { - port->rx_brk = 3; - _proto("Rx Break Detected"); - icount->brk++; - if (uart_handle_break(&port->uart)) - goto ignore_char; - status |= 1 << TTY_BREAK; - goto insert; - } - goto not_break; - - default: - if (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF)) - goto try_again; /* still breaking */ - - port->rx_brk = 0; /* end of the break */ - - switch (ch) { - case 0xFF: - case 0xFE: - case 0xFC: - case 0xF8: - case 0xF0: - case 0xE0: - case 0xC0: - case 0x80: - case 0x00: - /* discard char at probable break end */ - goto try_again; - } - break; - } - -process_errors: - /* handle framing error */ - if (st & SC01STR_FEF) { - if (ch == 0) { - /* framing error with NUL char is probably a BREAK */ - port->rx_brk = 1; - goto try_again; - } - - _proto("Rx Framing Error"); - icount->frame++; - status |= 1 << TTY_FRAME; - } - - /* handle parity error */ - if (st & SC01STR_PEF) { - _proto("Rx Parity Error"); - icount->parity++; - status = TTY_PARITY; - } - - /* handle normal char */ - if (status == 0) { - if (uart_handle_sysrq_char(&port->uart, ch)) - goto ignore_char; - status = (1 << TTY_NORMAL); - } - - /* handle overrun error */ - if (st & SC01STR_OEF) { - if (port->rx_brk) - goto try_again; - - _proto("Rx Overrun Error"); - icount->overrun++; - overrun = 1; - } - -insert: - status &= port->uart.read_status_mask; - - if (!overrun && !(status & port->uart.ignore_status_mask)) { - int flag; - - if (status & (1 << TTY_BREAK)) - flag = TTY_BREAK; - else if (status & (1 << TTY_PARITY)) - flag = TTY_PARITY; - else if (status & (1 << TTY_FRAME)) - flag = TTY_FRAME; - else - flag = TTY_NORMAL; - - tty_insert_flip_char(tport, ch, flag); - } - - /* overrun is special, since it's reported immediately, and doesn't - * affect the current character - */ - if (overrun) - tty_insert_flip_char(tport, 0, TTY_OVERRUN); - - count--; - if (count <= 0) { - if (!tport->low_latency) - tty_flip_buffer_push(tport); - return; - } - -ignore_char: - push = 1; - goto try_again; - -not_break: - port->rx_brk = 0; - goto process_errors; -} - -/* - * handle an interrupt from the serial transmission "virtual DMA" driver - * - note: the interrupt routine will disable its own interrupts when the Tx - * buffer is empty - */ -static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port) -{ - _enter("%s", port->name); - - if (!port->uart.state || !port->uart.state->port.tty) { - mn10300_serial_dis_tx_intr(port); - return; - } - - if (uart_tx_stopped(&port->uart) || - uart_circ_empty(&port->uart.state->xmit)) - mn10300_serial_dis_tx_intr(port); - - if (uart_circ_chars_pending(&port->uart.state->xmit) < WAKEUP_CHARS) - uart_write_wakeup(&port->uart); -} - -/* - * deal with a change in the status of the CTS line - */ -static void mn10300_serial_cts_changed(struct mn10300_serial_port *port, u8 st) -{ - u16 ctr; - - port->tx_cts = st; - port->uart.icount.cts++; - - /* flip the CTS state selector flag to interrupt when it changes - * back */ - ctr = *port->_control; - ctr ^= SC2CTR_TWS; - *port->_control = ctr; - - uart_handle_cts_change(&port->uart, st & SC2STR_CTS); - wake_up_interruptible(&port->uart.state->port.delta_msr_wait); -} - -/* - * handle a virtual interrupt generated by the lower level "virtual DMA" - * routines (irq is the baud timer interrupt) - */ -static irqreturn_t mn10300_serial_interrupt(int irq, void *dev_id) -{ - struct mn10300_serial_port *port = dev_id; - u8 st; - - spin_lock(&port->uart.lock); - - if (port->intr_flags) { - _debug("INT %s: %x", port->name, port->intr_flags); - - if (mask_test_and_clear(&port->intr_flags, MNSCx_RX_AVAIL)) - mn10300_serial_receive_interrupt(port); - - if (mask_test_and_clear(&port->intr_flags, - MNSCx_TX_SPACE | MNSCx_TX_EMPTY)) - mn10300_serial_transmit_interrupt(port); - } - - /* the only modem control line amongst the whole lot is CTS on - * serial port 2 */ - if (port->type == PORT_MN10300_CTS) { - st = *port->_status; - if ((port->tx_cts ^ st) & SC2STR_CTS) - mn10300_serial_cts_changed(port, st); - } - - spin_unlock(&port->uart.lock); - - return IRQ_HANDLED; -} - -/* - * return indication of whether the hardware transmit buffer is empty - */ -static unsigned int mn10300_serial_tx_empty(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - return (*port->_status & (SC01STR_TXF | SC01STR_TBF)) ? - 0 : TIOCSER_TEMT; -} - -/* - * set the modem control lines (we don't have any) - */ -static void mn10300_serial_set_mctrl(struct uart_port *_port, - unsigned int mctrl) -{ - struct mn10300_serial_port *port __attribute__ ((unused)) = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s,%x", port->name, mctrl); -} - -/* - * get the modem control line statuses - */ -static unsigned int mn10300_serial_get_mctrl(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - if (port->type == PORT_MN10300_CTS && !(*port->_status & SC2STR_CTS)) - return TIOCM_CAR | TIOCM_DSR; - - return TIOCM_CAR | TIOCM_CTS | TIOCM_DSR; -} - -/* - * stop transmitting characters - */ -static void mn10300_serial_stop_tx(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - /* disable the virtual DMA */ - mn10300_serial_dis_tx_intr(port); -} - -/* - * start transmitting characters - * - jump-start transmission if it has stalled - * - enable the serial Tx interrupt (used by the virtual DMA controller) - * - force an interrupt to happen if necessary - */ -static void mn10300_serial_start_tx(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s{%lu}", - port->name, - CIRC_CNT(&port->uart.state->xmit.head, - &port->uart.state->xmit.tail, - UART_XMIT_SIZE)); - - /* kick the virtual DMA controller */ - mn10300_serial_en_tx_intr(port); - - _debug("CTR=%04hx ICR=%02hx STR=%04x TMD=%02hx TBR=%04hx ICR=%04hx", - *port->_control, *port->_intr, *port->_status, - *port->_tmxmd, - (port->div_timer == MNSCx_DIV_TIMER_8BIT) ? - *(volatile u8 *)port->_tmxbr : *port->_tmxbr, - *port->tx_icr); -} - -/* - * transmit a high-priority XON/XOFF character - */ -static void mn10300_serial_send_xchar(struct uart_port *_port, char ch) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - unsigned long flags; - - _enter("%s,%02x", port->name, ch); - - if (likely(port->gdbstub)) { - port->tx_xchar = ch; - if (ch) { - spin_lock_irqsave(&port->uart.lock, flags); - mn10300_serial_en_tx_intr(port); - spin_unlock_irqrestore(&port->uart.lock, flags); - } - } -} - -/* - * stop receiving characters - * - called whilst the port is being closed - */ -static void mn10300_serial_stop_rx(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - u16 ctr; - - _enter("%s", port->name); - - ctr = *port->_control; - ctr &= ~SC01CTR_RXE; - *port->_control = ctr; - - mn10300_serial_dis_rx_intr(port); -} - -/* - * enable modem status interrupts - */ -static void mn10300_serial_enable_ms(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - u16 ctr, cts; - - _enter("%s", port->name); - - if (port->type == PORT_MN10300_CTS) { - /* want to interrupt when CTS goes low if CTS is now high and - * vice versa - */ - port->tx_cts = *port->_status; - - cts = (port->tx_cts & SC2STR_CTS) ? - SC2CTR_TWE : SC2CTR_TWE | SC2CTR_TWS; - - ctr = *port->_control; - ctr &= ~SC2CTR_TWS; - ctr |= cts; - *port->_control = ctr; - - mn10300_serial_en_tx_intr(port); - } -} - -/* - * transmit or cease transmitting a break signal - */ -static void mn10300_serial_break_ctl(struct uart_port *_port, int ctl) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - unsigned long flags; - - _enter("%s,%d", port->name, ctl); - - spin_lock_irqsave(&port->uart.lock, flags); - if (ctl) { - /* tell the virtual DMA handler to assert BREAK */ - port->tx_flags |= MNSCx_TX_BREAK; - mn10300_serial_en_tx_intr(port); - } else { - port->tx_flags &= ~MNSCx_TX_BREAK; - *port->_control &= ~SC01CTR_BKE; - mn10300_serial_en_tx_intr(port); - } - spin_unlock_irqrestore(&port->uart.lock, flags); -} - -/* - * grab the interrupts and enable the port for reception - */ -static int mn10300_serial_startup(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - struct mn10300_serial_int *pint; - - _enter("%s{%d}", port->name, port->gdbstub); - - if (unlikely(port->gdbstub)) - return -EBUSY; - - /* allocate an Rx buffer for the virtual DMA handler */ - port->rx_buffer = kmalloc(MNSC_BUFFER_SIZE, GFP_KERNEL); - if (!port->rx_buffer) - return -ENOMEM; - - port->rx_inp = port->rx_outp = 0; - port->tx_flags = 0; - - /* finally, enable the device */ - *port->_intr = SC01ICR_TI; - *port->_control |= SC01CTR_TXE | SC01CTR_RXE; - - pint = &mn10300_serial_int_tbl[port->rx_irq]; - pint->port = port; - pint->vdma = mn10300_serial_vdma_rx_handler; - pint = &mn10300_serial_int_tbl[port->tx_irq]; - pint->port = port; - pint->vdma = mn10300_serial_vdma_tx_handler; - - irq_set_chip(port->rx_irq, &mn10300_serial_low_pic); - irq_set_chip(port->tx_irq, &mn10300_serial_low_pic); - irq_set_chip(port->tm_irq, &mn10300_serial_pic); - - if (request_irq(port->rx_irq, mn10300_serial_interrupt, - IRQF_NOBALANCING, - port->rx_name, port) < 0) - goto error; - - if (request_irq(port->tx_irq, mn10300_serial_interrupt, - IRQF_NOBALANCING, - port->tx_name, port) < 0) - goto error2; - - if (request_irq(port->tm_irq, mn10300_serial_interrupt, - IRQF_NOBALANCING, - port->tm_name, port) < 0) - goto error3; - mn10300_serial_mask_ack(port->tm_irq); - - return 0; - -error3: - free_irq(port->tx_irq, port); -error2: - free_irq(port->rx_irq, port); -error: - kfree(port->rx_buffer); - port->rx_buffer = NULL; - return -EBUSY; -} - -/* - * shutdown the port and release interrupts - */ -static void mn10300_serial_shutdown(struct uart_port *_port) -{ - unsigned long flags; - u16 x; - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - spin_lock_irqsave(&_port->lock, flags); - mn10300_serial_dis_tx_intr(port); - - *port->rx_icr = NUM2GxICR_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL); - x = *port->rx_icr; - port->tx_flags = 0; - spin_unlock_irqrestore(&_port->lock, flags); - - /* disable the serial port and its baud rate timer */ - *port->_control &= ~(SC01CTR_TXE | SC01CTR_RXE | SC01CTR_BKE); - *port->_tmxmd = 0; - - if (port->rx_buffer) { - void *buf = port->rx_buffer; - port->rx_buffer = NULL; - kfree(buf); - } - - /* disable all intrs */ - free_irq(port->tm_irq, port); - free_irq(port->rx_irq, port); - free_irq(port->tx_irq, port); - - mn10300_serial_int_tbl[port->tx_irq].port = NULL; - mn10300_serial_int_tbl[port->rx_irq].port = NULL; -} - -/* - * this routine is called to set the UART divisor registers to match the - * specified baud rate for a serial port. - */ -static void mn10300_serial_change_speed(struct mn10300_serial_port *port, - struct ktermios *new, - struct ktermios *old) -{ - unsigned long flags; - unsigned long ioclk = port->ioclk; - unsigned cflag; - int baud, bits, xdiv, tmp; - u16 tmxbr, scxctr; - u8 tmxmd, battempt; - u8 div_timer = port->div_timer; - - _enter("%s{%lu}", port->name, ioclk); - - /* byte size and parity */ - cflag = new->c_cflag; - switch (cflag & CSIZE) { - case CS7: scxctr = SC01CTR_CLN_7BIT; bits = 9; break; - case CS8: scxctr = SC01CTR_CLN_8BIT; bits = 10; break; - default: scxctr = SC01CTR_CLN_8BIT; bits = 10; break; - } - - if (cflag & CSTOPB) { - scxctr |= SC01CTR_STB_2BIT; - bits++; - } - - if (cflag & PARENB) { - bits++; - if (cflag & PARODD) - scxctr |= SC01CTR_PB_ODD; -#ifdef CMSPAR - else if (cflag & CMSPAR) - scxctr |= SC01CTR_PB_FIXED0; -#endif - else - scxctr |= SC01CTR_PB_EVEN; - } - - /* Determine divisor based on baud rate */ - battempt = 0; - - switch (port->uart.line) { -#ifdef CONFIG_MN10300_TTYSM0 - case 0: /* ttySM0 */ -#if defined(CONFIG_MN10300_TTYSM0_TIMER8) - scxctr |= SC0CTR_CK_TM8UFLOW_8; -#elif defined(CONFIG_MN10300_TTYSM0_TIMER0) - scxctr |= SC0CTR_CK_TM0UFLOW_8; -#elif defined(CONFIG_MN10300_TTYSM0_TIMER2) - scxctr |= SC0CTR_CK_TM2UFLOW_8; -#else -#error "Unknown config for ttySM0" -#endif - break; -#endif /* CONFIG_MN10300_TTYSM0 */ - -#ifdef CONFIG_MN10300_TTYSM1 - case 1: /* ttySM1 */ -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) -#if defined(CONFIG_MN10300_TTYSM1_TIMER9) - scxctr |= SC1CTR_CK_TM9UFLOW_8; -#elif defined(CONFIG_MN10300_TTYSM1_TIMER3) - scxctr |= SC1CTR_CK_TM3UFLOW_8; -#else -#error "Unknown config for ttySM1" -#endif -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ -#if defined(CONFIG_MN10300_TTYSM1_TIMER12) - scxctr |= SC1CTR_CK_TM12UFLOW_8; -#else -#error "Unknown config for ttySM1" -#endif -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - break; -#endif /* CONFIG_MN10300_TTYSM1 */ - -#ifdef CONFIG_MN10300_TTYSM2 - case 2: /* ttySM2 */ -#if defined(CONFIG_AM33_2) -#if defined(CONFIG_MN10300_TTYSM2_TIMER10) - scxctr |= SC2CTR_CK_TM10UFLOW; -#else -#error "Unknown config for ttySM2" -#endif -#else /* CONFIG_AM33_2 */ -#if defined(CONFIG_MN10300_TTYSM2_TIMER9) - scxctr |= SC2CTR_CK_TM9UFLOW_8; -#elif defined(CONFIG_MN10300_TTYSM2_TIMER1) - scxctr |= SC2CTR_CK_TM1UFLOW_8; -#elif defined(CONFIG_MN10300_TTYSM2_TIMER3) - scxctr |= SC2CTR_CK_TM3UFLOW_8; -#else -#error "Unknown config for ttySM2" -#endif -#endif /* CONFIG_AM33_2 */ - break; -#endif /* CONFIG_MN10300_TTYSM2 */ - - default: - break; - } - -try_alternative: - baud = uart_get_baud_rate(&port->uart, new, old, 0, - port->ioclk / 8); - - _debug("ALT %d [baud %d]", battempt, baud); - - if (!baud) - baud = 9600; /* B0 transition handled in rs_set_termios */ - xdiv = 1; - if (baud == 134) { - baud = 269; /* 134 is really 134.5 */ - xdiv = 2; - } - - if (baud == 38400 && - (port->uart.flags & UPF_SPD_MASK) == UPF_SPD_CUST - ) { - _debug("CUSTOM %u", port->uart.custom_divisor); - - if (div_timer == MNSCx_DIV_TIMER_16BIT) { - if (port->uart.custom_divisor <= 65535) { - tmxmd = TM8MD_SRC_IOCLK; - tmxbr = port->uart.custom_divisor; - port->uart.uartclk = ioclk; - goto timer_okay; - } - if (port->uart.custom_divisor / 8 <= 65535) { - tmxmd = TM8MD_SRC_IOCLK_8; - tmxbr = port->uart.custom_divisor / 8; - port->uart.custom_divisor = tmxbr * 8; - port->uart.uartclk = ioclk / 8; - goto timer_okay; - } - if (port->uart.custom_divisor / 32 <= 65535) { - tmxmd = TM8MD_SRC_IOCLK_32; - tmxbr = port->uart.custom_divisor / 32; - port->uart.custom_divisor = tmxbr * 32; - port->uart.uartclk = ioclk / 32; - goto timer_okay; - } - - } else if (div_timer == MNSCx_DIV_TIMER_8BIT) { - if (port->uart.custom_divisor <= 255) { - tmxmd = TM2MD_SRC_IOCLK; - tmxbr = port->uart.custom_divisor; - port->uart.uartclk = ioclk; - goto timer_okay; - } - if (port->uart.custom_divisor / 8 <= 255) { - tmxmd = TM2MD_SRC_IOCLK_8; - tmxbr = port->uart.custom_divisor / 8; - port->uart.custom_divisor = tmxbr * 8; - port->uart.uartclk = ioclk / 8; - goto timer_okay; - } - if (port->uart.custom_divisor / 32 <= 255) { - tmxmd = TM2MD_SRC_IOCLK_32; - tmxbr = port->uart.custom_divisor / 32; - port->uart.custom_divisor = tmxbr * 32; - port->uart.uartclk = ioclk / 32; - goto timer_okay; - } - } - } - - switch (div_timer) { - case MNSCx_DIV_TIMER_16BIT: - port->uart.uartclk = ioclk; - tmxmd = TM8MD_SRC_IOCLK; - tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - - port->uart.uartclk = ioclk / 8; - tmxmd = TM8MD_SRC_IOCLK_8; - tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - - port->uart.uartclk = ioclk / 32; - tmxmd = TM8MD_SRC_IOCLK_32; - tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 65535) - goto timer_okay; - break; - - case MNSCx_DIV_TIMER_8BIT: - port->uart.uartclk = ioclk; - tmxmd = TM2MD_SRC_IOCLK; - tmxbr = tmp = (ioclk / (baud * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - - port->uart.uartclk = ioclk / 8; - tmxmd = TM2MD_SRC_IOCLK_8; - tmxbr = tmp = (ioclk / (baud * 8 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - - port->uart.uartclk = ioclk / 32; - tmxmd = TM2MD_SRC_IOCLK_32; - tmxbr = tmp = (ioclk / (baud * 32 * xdiv) + 4) / 8 - 1; - if (tmp > 0 && tmp <= 255) - goto timer_okay; - break; - - default: - BUG(); - return; - } - - /* refuse to change to a baud rate we can't support */ - _debug("CAN'T SUPPORT"); - - switch (battempt) { - case 0: - if (old) { - new->c_cflag &= ~CBAUD; - new->c_cflag |= (old->c_cflag & CBAUD); - battempt = 1; - goto try_alternative; - } - - case 1: - /* as a last resort, if the quotient is zero, default to 9600 - * bps */ - new->c_cflag &= ~CBAUD; - new->c_cflag |= B9600; - battempt = 2; - goto try_alternative; - - default: - /* hmmm... can't seem to support 9600 either - * - we could try iterating through the speeds we know about to - * find the lowest - */ - new->c_cflag &= ~CBAUD; - new->c_cflag |= B0; - - if (div_timer == MNSCx_DIV_TIMER_16BIT) - tmxmd = TM8MD_SRC_IOCLK_32; - else if (div_timer == MNSCx_DIV_TIMER_8BIT) - tmxmd = TM2MD_SRC_IOCLK_32; - tmxbr = 1; - - port->uart.uartclk = ioclk / 32; - break; - } -timer_okay: - - _debug("UARTCLK: %u / %hu", port->uart.uartclk, tmxbr); - - /* make the changes */ - spin_lock_irqsave(&port->uart.lock, flags); - - uart_update_timeout(&port->uart, new->c_cflag, baud); - - /* set the timer to produce the required baud rate */ - switch (div_timer) { - case MNSCx_DIV_TIMER_16BIT: - *port->_tmxmd = 0; - *port->_tmxbr = tmxbr; - *port->_tmxmd = TM8MD_INIT_COUNTER; - *port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE; - break; - - case MNSCx_DIV_TIMER_8BIT: - *port->_tmxmd = 0; - *(volatile u8 *) port->_tmxbr = (u8) tmxbr; - *port->_tmxmd = TM2MD_INIT_COUNTER; - *port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE; - break; - } - - /* CTS flow control flag and modem status interrupts */ - scxctr &= ~(SC2CTR_TWE | SC2CTR_TWS); - - if (port->type == PORT_MN10300_CTS && cflag & CRTSCTS) { - /* want to interrupt when CTS goes low if CTS is now - * high and vice versa - */ - port->tx_cts = *port->_status; - - if (port->tx_cts & SC2STR_CTS) - scxctr |= SC2CTR_TWE; - else - scxctr |= SC2CTR_TWE | SC2CTR_TWS; - } - - /* set up parity check flag */ - port->uart.read_status_mask = (1 << TTY_NORMAL) | (1 << TTY_OVERRUN); - if (new->c_iflag & INPCK) - port->uart.read_status_mask |= - (1 << TTY_PARITY) | (1 << TTY_FRAME); - if (new->c_iflag & (BRKINT | PARMRK)) - port->uart.read_status_mask |= (1 << TTY_BREAK); - - /* characters to ignore */ - port->uart.ignore_status_mask = 0; - if (new->c_iflag & IGNPAR) - port->uart.ignore_status_mask |= - (1 << TTY_PARITY) | (1 << TTY_FRAME); - if (new->c_iflag & IGNBRK) { - port->uart.ignore_status_mask |= (1 << TTY_BREAK); - /* - * If we're ignoring parity and break indicators, - * ignore overruns to (for real raw support). - */ - if (new->c_iflag & IGNPAR) - port->uart.ignore_status_mask |= (1 << TTY_OVERRUN); - } - - /* Ignore all characters if CREAD is not set */ - if ((new->c_cflag & CREAD) == 0) - port->uart.ignore_status_mask |= (1 << TTY_NORMAL); - - scxctr |= SC01CTR_TXE | SC01CTR_RXE; - scxctr |= *port->_control & SC01CTR_BKE; - *port->_control = scxctr; - - spin_unlock_irqrestore(&port->uart.lock, flags); -} - -/* - * set the terminal I/O parameters - */ -static void mn10300_serial_set_termios(struct uart_port *_port, - struct ktermios *new, - struct ktermios *old) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s,%p,%p", port->name, new, old); - - mn10300_serial_change_speed(port, new, old); - - /* handle turning off CRTSCTS */ - if (!(new->c_cflag & CRTSCTS)) { - u16 ctr = *port->_control; - ctr &= ~SC2CTR_TWE; - *port->_control = ctr; - } - - /* change Transfer bit-order (LSB/MSB) */ - if (new->c_cflag & CODMSB) - *port->_control |= SC01CTR_OD_MSBFIRST; /* MSB MODE */ - else - *port->_control &= ~SC01CTR_OD_MSBFIRST; /* LSB MODE */ -} - -/* - * return description of port type - */ -static const char *mn10300_serial_type(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - if (port->uart.type == PORT_MN10300_CTS) - return "MN10300 SIF_CTS"; - - return "MN10300 SIF"; -} - -/* - * release I/O and memory regions in use by port - */ -static void mn10300_serial_release_port(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - release_mem_region((unsigned long) port->_iobase, 16); -} - -/* - * request I/O and memory regions for port - */ -static int mn10300_serial_request_port(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - request_mem_region((unsigned long) port->_iobase, 16, port->name); - return 0; -} - -/* - * configure the type and reserve the ports - */ -static void mn10300_serial_config_port(struct uart_port *_port, int type) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - - _enter("%s", port->name); - - port->uart.type = PORT_MN10300; - - if (port->options & MNSCx_OPT_CTS) - port->uart.type = PORT_MN10300_CTS; - - mn10300_serial_request_port(_port); -} - -/* - * verify serial parameters are suitable for this port type - */ -static int mn10300_serial_verify_port(struct uart_port *_port, - struct serial_struct *ss) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - void *mapbase = (void *) (unsigned long) port->uart.mapbase; - - _enter("%s", port->name); - - /* these things may not be changed */ - if (ss->irq != port->uart.irq || - ss->port != port->uart.iobase || - ss->io_type != port->uart.iotype || - ss->iomem_base != mapbase || - ss->iomem_reg_shift != port->uart.regshift || - ss->hub6 != port->uart.hub6 || - ss->xmit_fifo_size != port->uart.fifosize) - return -EINVAL; - - /* type may be changed on a port that supports CTS */ - if (ss->type != port->uart.type) { - if (!(port->options & MNSCx_OPT_CTS)) - return -EINVAL; - - if (ss->type != PORT_MN10300 && - ss->type != PORT_MN10300_CTS) - return -EINVAL; - } - - return 0; -} - -/* - * initialise the MN10300 on-chip UARTs - */ -static int __init mn10300_serial_init(void) -{ - struct mn10300_serial_port *port; - int ret, i; - - printk(KERN_INFO "%s version %s (%s)\n", - serial_name, serial_version, serial_revdate); - -#if defined(CONFIG_MN10300_TTYSM2) && defined(CONFIG_AM33_2) - { - int tmp; - SC2TIM = 8; /* make the baud base of timer 2 IOCLK/8 */ - tmp = SC2TIM; - } -#endif - - set_intr_stub(NUM2EXCEP_IRQ_LEVEL(CONFIG_MN10300_SERIAL_IRQ_LEVEL), - mn10300_serial_vdma_interrupt); - - ret = uart_register_driver(&mn10300_serial_driver); - if (!ret) { - for (i = 0 ; i < NR_PORTS ; i++) { - port = mn10300_serial_ports[i]; - if (!port || port->gdbstub) - continue; - - switch (port->clock_src) { - case MNSCx_CLOCK_SRC_IOCLK: - port->ioclk = MN10300_IOCLK; - break; - -#ifdef MN10300_IOBCLK - case MNSCx_CLOCK_SRC_IOBCLK: - port->ioclk = MN10300_IOBCLK; - break; -#endif - default: - BUG(); - } - - ret = uart_add_one_port(&mn10300_serial_driver, - &port->uart); - - if (ret < 0) { - _debug("ERROR %d", -ret); - break; - } - } - - if (ret) - uart_unregister_driver(&mn10300_serial_driver); - } - - return ret; -} - -__initcall(mn10300_serial_init); - - -#ifdef CONFIG_MN10300_TTYSM_CONSOLE - -/* - * print a string to the serial port without disturbing the real user of the - * port too much - * - the console must be locked by the caller - */ -static void mn10300_serial_console_write(struct console *co, - const char *s, unsigned count) -{ - struct mn10300_serial_port *port; - unsigned i; - u16 scxctr; - u8 tmxmd; - unsigned long flags; - int locked = 1; - - port = mn10300_serial_ports[co->index]; - - local_irq_save(flags); - if (port->uart.sysrq) { - /* mn10300_serial_interrupt() already took the lock */ - locked = 0; - } else if (oops_in_progress) { - locked = spin_trylock(&port->uart.lock); - } else - spin_lock(&port->uart.lock); - - /* firstly hijack the serial port from the "virtual DMA" controller */ - mn10300_serial_dis_tx_intr(port); - - /* the transmitter may be disabled */ - scxctr = *port->_control; - if (!(scxctr & SC01CTR_TXE)) { - /* restart the UART clock */ - tmxmd = *port->_tmxmd; - - switch (port->div_timer) { - case MNSCx_DIV_TIMER_16BIT: - *port->_tmxmd = 0; - *port->_tmxmd = TM8MD_INIT_COUNTER; - *port->_tmxmd = tmxmd | TM8MD_COUNT_ENABLE; - break; - - case MNSCx_DIV_TIMER_8BIT: - *port->_tmxmd = 0; - *port->_tmxmd = TM2MD_INIT_COUNTER; - *port->_tmxmd = tmxmd | TM2MD_COUNT_ENABLE; - break; - } - - /* enable the transmitter */ - *port->_control = (scxctr & ~SC01CTR_BKE) | SC01CTR_TXE; - - } else if (scxctr & SC01CTR_BKE) { - /* stop transmitting BREAK */ - *port->_control = (scxctr & ~SC01CTR_BKE); - } - - /* send the chars into the serial port (with LF -> LFCR conversion) */ - for (i = 0; i < count; i++) { - char ch = *s++; - - while (*port->_status & SC01STR_TBF) - continue; - *port->_txb = ch; - - if (ch == 0x0a) { - while (*port->_status & SC01STR_TBF) - continue; - *port->_txb = 0xd; - } - } - - /* can't let the transmitter be turned off if it's actually - * transmitting */ - while (*port->_status & (SC01STR_TXF | SC01STR_TBF)) - continue; - - /* disable the transmitter if we re-enabled it */ - if (!(scxctr & SC01CTR_TXE)) - *port->_control = scxctr; - - mn10300_serial_en_tx_intr(port); - - if (locked) - spin_unlock(&port->uart.lock); - local_irq_restore(flags); -} - -/* - * set up a serial port as a console - * - construct a cflag setting for the first rs_open() - * - initialize the serial port - * - return non-zero if we didn't find a serial port. - */ -static int __init mn10300_serial_console_setup(struct console *co, - char *options) -{ - struct mn10300_serial_port *port; - int i, parity = 'n', baud = 9600, bits = 8, flow = 0; - - for (i = 0 ; i < NR_PORTS ; i++) { - port = mn10300_serial_ports[i]; - if (port && !port->gdbstub && port->uart.line == co->index) - goto found_device; - } - - return -ENODEV; - -found_device: - switch (port->clock_src) { - case MNSCx_CLOCK_SRC_IOCLK: - port->ioclk = MN10300_IOCLK; - break; - -#ifdef MN10300_IOBCLK - case MNSCx_CLOCK_SRC_IOBCLK: - port->ioclk = MN10300_IOBCLK; - break; -#endif - default: - BUG(); - } - - if (options) - uart_parse_options(options, &baud, &parity, &bits, &flow); - - return uart_set_options(&port->uart, co, baud, parity, bits, flow); -} - -/* - * register console - */ -static int __init mn10300_serial_console_init(void) -{ - register_console(&mn10300_serial_console); - return 0; -} - -console_initcall(mn10300_serial_console_init); -#endif - -#ifdef CONFIG_CONSOLE_POLL -/* - * Polled character reception for the kernel debugger - */ -static int mn10300_serial_poll_get_char(struct uart_port *_port) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - unsigned ix; - u8 st, ch; - - _enter("%s", port->name); - - if (mn10300_serial_int_tbl[port->rx_irq].port != NULL) { - do { - /* pull chars out of the hat */ - ix = READ_ONCE(port->rx_outp); - if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0) - return NO_POLL_CHAR; - - /* - * READ_ONCE() enforces dependency, but dangerous - * through integer!!! - */ - ch = port->rx_buffer[ix++]; - st = port->rx_buffer[ix++]; - smp_mb(); - port->rx_outp = ix & (MNSC_BUFFER_SIZE - 1); - - } while (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF)); - } else { - do { - st = *port->_status; - if (st & (SC01STR_FEF | SC01STR_PEF | SC01STR_OEF)) - continue; - } while (!(st & SC01STR_RBF)); - - ch = *port->_rxb; - } - - return ch; -} - - -/* - * Polled character transmission for the kernel debugger - */ -static void mn10300_serial_poll_put_char(struct uart_port *_port, - unsigned char ch) -{ - struct mn10300_serial_port *port = - container_of(_port, struct mn10300_serial_port, uart); - u8 intr, tmp; - - /* wait for the transmitter to finish anything it might be doing (and - * this includes the virtual DMA handler, so it might take a while) */ - while (*port->_status & (SC01STR_TBF | SC01STR_TXF)) - continue; - - /* disable the Tx ready interrupt */ - intr = *port->_intr; - *port->_intr = intr & ~SC01ICR_TI; - tmp = *port->_intr; - - if (ch == 0x0a) { - *port->_txb = 0x0d; - while (*port->_status & SC01STR_TBF) - continue; - } - - *port->_txb = ch; - while (*port->_status & SC01STR_TBF) - continue; - - /* restore the Tx interrupt flag */ - *port->_intr = intr; - tmp = *port->_intr; -} - -#endif /* CONFIG_CONSOLE_POLL */ diff --git a/arch/mn10300/kernel/mn10300-serial.h b/arch/mn10300/kernel/mn10300-serial.h deleted file mode 100644 index 01791c68ea1f..000000000000 --- a/arch/mn10300/kernel/mn10300-serial.h +++ /dev/null @@ -1,130 +0,0 @@ -/* MN10300 On-chip serial port driver definitions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _MN10300_SERIAL_H -#define _MN10300_SERIAL_H - -#ifndef __ASSEMBLY__ -#include <linux/serial_core.h> -#include <linux/termios.h> -#endif - -#include <asm/page.h> -#include <asm/serial-regs.h> - -#define NR_PORTS 3 /* should be set 3 or 9 or 16 */ - -#define MNSC_BUFFER_SIZE +(PAGE_SIZE / 2) - -/* intr_flags bits */ -#define MNSCx_RX_AVAIL 0x01 -#define MNSCx_RX_OVERF 0x02 -#define MNSCx_TX_SPACE 0x04 -#define MNSCx_TX_EMPTY 0x08 - -/* tx_flags bits */ -#define MNSCx_TX_BREAK 0x01 -#define MNSCx_TX_STOP 0x02 - -#ifndef __ASSEMBLY__ - -struct mn10300_serial_port { - char *rx_buffer; /* reception buffer base */ - unsigned rx_inp; /* pointer to rx input offset */ - unsigned rx_outp; /* pointer to rx output offset */ - u8 tx_xchar; /* high-priority XON/XOFF buffer */ - u8 tx_flags; /* transmit break/stop request */ - u8 intr_flags; /* interrupt flags */ - volatile u16 *rx_icr; /* Rx interrupt control register */ - volatile u16 *tx_icr; /* Tx interrupt control register */ - int rx_irq; /* reception IRQ */ - int tx_irq; /* transmission IRQ */ - int tm_irq; /* timer IRQ */ - - const char *name; /* name of serial port */ - const char *rx_name; /* Rx interrupt handler name of serial port */ - const char *tx_name; /* Tx interrupt handler name of serial port */ - const char *tm_name; /* Timer interrupt handler name */ - unsigned short type; /* type of serial port */ - unsigned char isconsole; /* T if it's a console */ - volatile void *_iobase; /* pointer to base of I/O control regs */ - volatile u16 *_control; /* control register pointer */ - volatile u8 *_status; /* status register pointer */ - volatile u8 *_intr; /* interrupt register pointer */ - volatile u8 *_rxb; /* receive buffer register pointer */ - volatile u8 *_txb; /* transmit buffer register pointer */ - volatile u16 *_tmicr; /* timer interrupt control register */ - volatile u8 *_tmxmd; /* baud rate timer mode register */ - volatile u16 *_tmxbr; /* baud rate timer base register */ - - /* this must come down here so that assembly can use BSET to access the - * above fields */ - struct uart_port uart; - - unsigned short rx_brk; /* current break reception status */ - u16 tx_cts; /* current CTS status */ - int gdbstub; /* preemptively stolen by GDB stub */ - - u8 clock_src; /* clock source */ -#define MNSCx_CLOCK_SRC_IOCLK 0 -#define MNSCx_CLOCK_SRC_IOBCLK 1 - - u8 div_timer; /* timer used as divisor */ -#define MNSCx_DIV_TIMER_16BIT 0 -#define MNSCx_DIV_TIMER_8BIT 1 - - u16 options; /* options */ -#define MNSCx_OPT_CTS 0x0001 - - unsigned long ioclk; /* base clock rate */ -}; - -#ifdef CONFIG_MN10300_TTYSM0 -extern struct mn10300_serial_port mn10300_serial_port_sif0; -#endif - -#ifdef CONFIG_MN10300_TTYSM1 -extern struct mn10300_serial_port mn10300_serial_port_sif1; -#endif - -#ifdef CONFIG_MN10300_TTYSM2 -extern struct mn10300_serial_port mn10300_serial_port_sif2; -#endif - -extern struct mn10300_serial_port *mn10300_serial_ports[]; - -struct mn10300_serial_int { - struct mn10300_serial_port *port; - asmlinkage void (*vdma)(void); -}; - -extern struct mn10300_serial_int mn10300_serial_int_tbl[]; - -extern asmlinkage void mn10300_serial_vdma_interrupt(void); -extern asmlinkage void mn10300_serial_vdma_rx_handler(void); -extern asmlinkage void mn10300_serial_vdma_tx_handler(void); - -#endif /* __ASSEMBLY__ */ - -#if defined(CONFIG_GDBSTUB_ON_TTYSM0) -#define SCgSTR SC0STR -#define SCgRXB SC0RXB -#define SCgRXIRQ SC0RXIRQ -#elif defined(CONFIG_GDBSTUB_ON_TTYSM1) -#define SCgSTR SC1STR -#define SCgRXB SC1RXB -#define SCgRXIRQ SC1RXIRQ -#elif defined(CONFIG_GDBSTUB_ON_TTYSM2) -#define SCgSTR SC2STR -#define SCgRXB SC2RXB -#define SCgRXIRQ SC2RXIRQ -#endif - -#endif /* _MN10300_SERIAL_H */ diff --git a/arch/mn10300/kernel/mn10300-watchdog-low.S b/arch/mn10300/kernel/mn10300-watchdog-low.S deleted file mode 100644 index 34f8773de7d0..000000000000 --- a/arch/mn10300/kernel/mn10300-watchdog-low.S +++ /dev/null @@ -1,66 +0,0 @@ -############################################################################### -# -# MN10300 Watchdog interrupt handler -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/intctl-regs.h> -#include <asm/timer-regs.h> -#include <asm/frame.inc> -#include <linux/threads.h> - - .text - -############################################################################### -# -# Watchdog handler entry point -# - special non-maskable interrupt -# -############################################################################### - .globl watchdog_handler - .type watchdog_handler,@function -watchdog_handler: - add -4,sp - SAVE_ALL - - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - - mov fp,d0 - lsr 2,d1 - call watchdog_interrupt[],0 # watchdog_interrupt(regs,irq) - - jmp ret_from_intr - - .size watchdog_handler,.-watchdog_handler - -############################################################################### -# -# Watchdog touch entry point -# - kept to absolute minimum (unfortunately, it's prototyped in linux/nmi.h so -# we can't inline it) -# -############################################################################### - .globl arch_touch_nmi_watchdog - .type arch_touch_nmi_watchdog,@function -arch_touch_nmi_watchdog: - clr d0 - clr d1 - mov watchdog_alert_counter, a0 - setlb - mov d0, (a0+) - inc d1 - cmp NR_CPUS, d1 - lne - ret [],0 - - .size arch_touch_nmi_watchdog,.-arch_touch_nmi_watchdog diff --git a/arch/mn10300/kernel/mn10300-watchdog.c b/arch/mn10300/kernel/mn10300-watchdog.c deleted file mode 100644 index 0d5641beadf5..000000000000 --- a/arch/mn10300/kernel/mn10300-watchdog.c +++ /dev/null @@ -1,205 +0,0 @@ -/* MN10300 Watchdog timer - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from arch/i386/kernel/nmi.c - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/nmi.h> -#include <asm/processor.h> -#include <linux/atomic.h> -#include <asm/intctl-regs.h> -#include <asm/rtc-regs.h> -#include <asm/div64.h> -#include <asm/smp.h> -#include <asm/gdb-stub.h> -#include <proc/clock.h> - -static DEFINE_SPINLOCK(watchdog_print_lock); -static unsigned int watchdog; -static unsigned int watchdog_hz = 1; -unsigned int watchdog_alert_counter[NR_CPUS]; - -EXPORT_SYMBOL(arch_touch_nmi_watchdog); - -/* - * the best way to detect whether a CPU has a 'hard lockup' problem - * is to check its timer makes IRQ counts. If they are not - * changing then that CPU has some problem. - * - * since NMIs dont listen to _any_ locks, we have to be extremely - * careful not to rely on unsafe variables. The printk might lock - * up though, so we have to break up any console locks first ... - * [when there will be more tty-related locks, break them up - * here too!] - */ -static unsigned int last_irq_sums[NR_CPUS]; - -int __init check_watchdog(void) -{ - irq_cpustat_t tmp[1]; - - printk(KERN_INFO "Testing Watchdog... "); - - memcpy(tmp, irq_stat, sizeof(tmp)); - local_irq_enable(); - mdelay((10 * 1000) / watchdog_hz); /* wait 10 ticks */ - local_irq_disable(); - - if (nmi_count(0) - tmp[0].__nmi_count <= 5) { - printk(KERN_WARNING "CPU#%d: Watchdog appears to be stuck!\n", - 0); - return -1; - } - - printk(KERN_INFO "OK.\n"); - - /* now that we know it works we can reduce NMI frequency to something - * more reasonable; makes a difference in some configs - */ - watchdog_hz = 1; - - return 0; -} - -static int __init setup_watchdog(char *str) -{ - unsigned tmp; - int opt; - u8 ctr; - - get_option(&str, &opt); - if (opt != 1) - return 0; - - watchdog = opt; - if (watchdog) { - set_intr_stub(EXCEP_WDT, watchdog_handler); - ctr = WDCTR_WDCK_65536th; - WDCTR = WDCTR_WDRST | ctr; - WDCTR = ctr; - tmp = WDCTR; - - tmp = __muldiv64u(1 << (16 + ctr * 2), 1000000, MN10300_WDCLK); - tmp = 1000000000 / tmp; - watchdog_hz = (tmp + 500) / 1000; - } - - return 1; -} - -__setup("watchdog=", setup_watchdog); - -void __init watchdog_go(void) -{ - u8 wdt; - - if (watchdog) { - printk(KERN_INFO "Watchdog: running at %uHz\n", watchdog_hz); - wdt = WDCTR & ~WDCTR_WDCNE; - WDCTR = wdt | WDCTR_WDRST; - wdt = WDCTR; - WDCTR = wdt | WDCTR_WDCNE; - wdt = WDCTR; - - check_watchdog(); - } -} - -#ifdef CONFIG_SMP -static void watchdog_dump_register(void *dummy) -{ - printk(KERN_ERR "--- Register Dump (CPU%d) ---\n", CPUID); - show_registers(current_frame()); -} -#endif - -asmlinkage -void watchdog_interrupt(struct pt_regs *regs, enum exception_code excep) -{ - /* - * Since current-> is always on the stack, and we always switch - * the stack NMI-atomically, it's safe to use smp_processor_id(). - */ - int sum, cpu; - int irq = NMIIRQ; - u8 wdt, tmp; - - wdt = WDCTR & ~WDCTR_WDCNE; - WDCTR = wdt; - tmp = WDCTR; - NMICR = NMICR_WDIF; - - nmi_count(smp_processor_id())++; - kstat_incr_irq_this_cpu(irq); - - for_each_online_cpu(cpu) { - - sum = irq_stat[cpu].__irq_count; - - if ((last_irq_sums[cpu] == sum) -#if defined(CONFIG_GDBSTUB) && defined(CONFIG_SMP) - && !(CHK_GDBSTUB_BUSY() - || atomic_read(&cpu_doing_single_step)) -#endif - ) { - /* - * Ayiee, looks like this CPU is stuck ... - * wait a few IRQs (5 seconds) before doing the oops ... - */ - watchdog_alert_counter[cpu]++; - if (watchdog_alert_counter[cpu] == 5 * watchdog_hz) { - spin_lock(&watchdog_print_lock); - /* - * We are in trouble anyway, lets at least try - * to get a message out. - */ - bust_spinlocks(1); - printk(KERN_ERR - "NMI Watchdog detected LOCKUP on CPU%d," - " pc %08lx, registers:\n", - cpu, regs->pc); -#ifdef CONFIG_SMP - printk(KERN_ERR - "--- Register Dump (CPU%d) ---\n", - CPUID); -#endif - show_registers(regs); -#ifdef CONFIG_SMP - smp_nmi_call_function(watchdog_dump_register, - NULL, 1); -#endif - printk(KERN_NOTICE "console shuts up ...\n"); - console_silent(); - spin_unlock(&watchdog_print_lock); - bust_spinlocks(0); -#ifdef CONFIG_GDBSTUB - if (CHK_GDBSTUB_BUSY_AND_ACTIVE()) - gdbstub_exception(regs, excep); - else - gdbstub_intercept(regs, excep); -#endif - do_exit(SIGSEGV); - } - } else { - last_irq_sums[cpu] = sum; - watchdog_alert_counter[cpu] = 0; - } - } - - WDCTR = wdt | WDCTR_WDRST; - tmp = WDCTR; - WDCTR = wdt | WDCTR_WDCNE; - tmp = WDCTR; -} diff --git a/arch/mn10300/kernel/mn10300_ksyms.c b/arch/mn10300/kernel/mn10300_ksyms.c deleted file mode 100644 index 66fb68d0ca8a..000000000000 --- a/arch/mn10300/kernel/mn10300_ksyms.c +++ /dev/null @@ -1,39 +0,0 @@ -/* MN10300 Miscellaneous and library kernel exports - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> - - -EXPORT_SYMBOL(empty_zero_page); - -EXPORT_SYMBOL(change_bit); -EXPORT_SYMBOL(test_and_change_bit); - -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(memset); - -EXPORT_SYMBOL(strncpy_from_user); -EXPORT_SYMBOL(clear_user); -EXPORT_SYMBOL(__clear_user); -EXPORT_SYMBOL(strnlen_user); - -extern u64 __ashrdi3(u64, unsigned); -extern u64 __ashldi3(u64, unsigned); -extern u64 __lshrdi3(u64, unsigned); -extern s64 __negdi2(s64); -extern int __ucmpdi2(u64, u64); -EXPORT_SYMBOL(__ashrdi3); -EXPORT_SYMBOL(__ashldi3); -EXPORT_SYMBOL(__lshrdi3); -EXPORT_SYMBOL(__negdi2); -EXPORT_SYMBOL(__ucmpdi2); diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c deleted file mode 100644 index 216ad23c9570..000000000000 --- a/arch/mn10300/kernel/module.c +++ /dev/null @@ -1,156 +0,0 @@ -/* MN10300 Kernel module helper routines - * - * Copyright (C) 2007, 2008, 2009 Red Hat, Inc. All Rights Reserved. - * Written by Mark Salter (msalter@redhat.com) - * - Derived from arch/i386/kernel/module.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public Licence as published by - * the Free Software Foundation; either version 2 of the Licence, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public Licence for more details. - * - * You should have received a copy of the GNU General Public Licence - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/moduleloader.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/bug.h> - -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(fmt, ...) -#endif - -static void reloc_put16(uint8_t *p, uint32_t val) -{ - p[0] = val & 0xff; - p[1] = (val >> 8) & 0xff; -} - -static void reloc_put24(uint8_t *p, uint32_t val) -{ - reloc_put16(p, val); - p[2] = (val >> 16) & 0xff; -} - -static void reloc_put32(uint8_t *p, uint32_t val) -{ - reloc_put16(p, val); - reloc_put16(p+2, val >> 16); -} - -/* - * apply a RELA relocation - */ -int apply_relocate_add(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i, sym_diff_seen = 0; - Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - Elf32_Addr relocation, sym_diff_val = 0; - uint8_t *location; - uint32_t value; - - DEBUGP("Applying relocate section %u to %u\n", - relsec, sechdrs[relsec].sh_info); - - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* this is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - - /* this is the symbol the relocation is referring to (note that - * all undefined symbols have been resolved by the caller) */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - /* this is the adjustment to be made */ - relocation = sym->st_value + rel[i].r_addend; - - if (sym_diff_seen) { - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_MN10300_32: - case R_MN10300_24: - case R_MN10300_16: - case R_MN10300_8: - relocation -= sym_diff_val; - sym_diff_seen = 0; - break; - default: - printk(KERN_ERR "module %s: Unexpected SYM_DIFF relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - - switch (ELF32_R_TYPE(rel[i].r_info)) { - /* for the first four relocation types, we simply - * store the adjustment at the location given */ - case R_MN10300_32: - reloc_put32(location, relocation); - break; - case R_MN10300_24: - reloc_put24(location, relocation); - break; - case R_MN10300_16: - reloc_put16(location, relocation); - break; - case R_MN10300_8: - *location = relocation; - break; - - /* for the next three relocation types, we write the - * adjustment with the address subtracted over the - * value at the location given */ - case R_MN10300_PCREL32: - value = relocation - (uint32_t) location; - reloc_put32(location, value); - break; - case R_MN10300_PCREL16: - value = relocation - (uint32_t) location; - reloc_put16(location, value); - break; - case R_MN10300_PCREL8: - *location = relocation - (uint32_t) location; - break; - - case R_MN10300_SYM_DIFF: - /* This is used to adjust the next reloc as required - * by relaxation. */ - sym_diff_seen = 1; - sym_diff_val = sym->st_value; - break; - - case R_MN10300_ALIGN: - /* Just ignore the ALIGN relocs. - * Only interesting if kernel performed relaxation. */ - continue; - - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - if (sym_diff_seen) { - printk(KERN_ERR "module %s: Nothing follows SYM_DIFF relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - return 0; -} diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c deleted file mode 100644 index 7c475fd99c46..000000000000 --- a/arch/mn10300/kernel/process.c +++ /dev/null @@ -1,175 +0,0 @@ -/* MN10300 Process handling code - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/sched/debug.h> -#include <linux/sched/task.h> -#include <linux/sched/task_stack.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/reboot.h> -#include <linux/percpu.h> -#include <linux/err.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/rcupdate.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/mmu_context.h> -#include <asm/fpu.h> -#include <asm/reset-regs.h> -#include <asm/gdb-stub.h> -#include "internal.h" - -/* - * power off function, if any - */ -void (*pm_power_off)(void); -EXPORT_SYMBOL(pm_power_off); - -/* - * On SMP it's slightly faster (but much more power-consuming!) - * to poll the ->work.need_resched flag instead of waiting for the - * cross-CPU IPI to arrive. Use this option with caution. - * - * tglx: No idea why this depends on HOTPLUG_CPU !?! - */ -#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) -void arch_cpu_idle(void) -{ - safe_halt(); -} -#endif - -void machine_restart(char *cmd) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif - -#ifdef mn10300_unit_hard_reset - mn10300_unit_hard_reset(); -#else - mn10300_proc_hard_reset(); -#endif -} - -void machine_halt(void) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif -} - -void machine_power_off(void) -{ -#ifdef CONFIG_KERNEL_DEBUGGER - gdbstub_exit(0); -#endif -} - -void show_regs(struct pt_regs *regs) -{ - show_regs_print_info(KERN_DEFAULT); -} - -/* - * free current thread data structures etc.. - */ -void exit_thread(struct task_struct *tsk) -{ - exit_fpu(tsk); -} - -void flush_thread(void) -{ - flush_fpu(); -} - -void release_thread(struct task_struct *dead_task) -{ -} - -/* - * this gets called so that we can store lazy state into memory and copy the - * current task into the new thread. - */ -int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) -{ - unlazy_fpu(src); - *dst = *src; - return 0; -} - -/* - * set up the kernel stack for a new thread and copy arch-specific thread - * control information - */ -int copy_thread(unsigned long clone_flags, - unsigned long c_usp, unsigned long ustk_size, - struct task_struct *p) -{ - struct thread_info *ti = task_thread_info(p); - struct pt_regs *c_regs; - unsigned long c_ksp; - - c_ksp = (unsigned long) task_stack_page(p) + THREAD_SIZE; - - /* allocate the userspace exception frame and set it up */ - c_ksp -= sizeof(struct pt_regs); - c_regs = (struct pt_regs *) c_ksp; - c_ksp -= 12; /* allocate function call ABI slack */ - - /* set up things up so the scheduler can start the new task */ - p->thread.uregs = c_regs; - ti->frame = c_regs; - p->thread.a3 = (unsigned long) c_regs; - p->thread.sp = c_ksp; - p->thread.wchan = p->thread.pc; - p->thread.usp = c_usp; - - if (unlikely(p->flags & PF_KTHREAD)) { - memset(c_regs, 0, sizeof(struct pt_regs)); - c_regs->a0 = c_usp; /* function */ - c_regs->d0 = ustk_size; /* argument */ - local_save_flags(c_regs->epsw); - c_regs->epsw |= EPSW_IE | EPSW_IM_7; - p->thread.pc = (unsigned long) ret_from_kernel_thread; - return 0; - } - *c_regs = *current_pt_regs(); - if (c_usp) - c_regs->sp = c_usp; - c_regs->epsw &= ~EPSW_FE; /* my FPU */ - - /* the new TLS pointer is passed in as arg #5 to sys_clone() */ - if (clone_flags & CLONE_SETTLS) - c_regs->e2 = current_frame()->d3; - - p->thread.pc = (unsigned long) ret_from_fork; - - return 0; -} - -unsigned long get_wchan(struct task_struct *p) -{ - return p->thread.wchan; -} diff --git a/arch/mn10300/kernel/profile-low.S b/arch/mn10300/kernel/profile-low.S deleted file mode 100644 index 94ffac12d02d..000000000000 --- a/arch/mn10300/kernel/profile-low.S +++ /dev/null @@ -1,72 +0,0 @@ -############################################################################### -# -# Fast profiling interrupt handler -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/segment.h> -#include <asm/smp.h> -#include <asm/intctl-regs.h> -#include <asm/timer-regs.h> - -#define pi break - - .balign 4 -counter: - .long -1 - -############################################################################### -# -# Profiling interrupt entry point -# - intended to run at interrupt priority 1 -# -############################################################################### -ENTRY(profile_handler) - movm [d2,d3,a2],(sp) - - # ignore userspace - mov (12,sp),d2 - and EPSW_nSL,d2 - bne out - - # do nothing if there's no buffer - mov (prof_buffer),a2 - and a2,a2 - beq out - or 0x20000000,a2 - - # calculate relative position in text segment - mov (16,sp),d2 - sub _stext,d2 - mov (prof_shift),d3 - lsr d3,d2 - mov (prof_len),d3 - cmp d3,d2 - bcc outside_text - - # increment the appropriate profile bucket -do_inc: - asl2 d2 - mov (a2,d2),d3 - inc d3 - mov d3,(a2,d2) -out: - mov GxICR_DETECT,d2 - movbu d2,(TM11ICR) # ACK the interrupt - movbu (TM11ICR),d2 - movm (sp),[d2,d3,a2] - rti - -outside_text: - sub 1,d3 - mov d3,d2 - bra do_inc diff --git a/arch/mn10300/kernel/profile.c b/arch/mn10300/kernel/profile.c deleted file mode 100644 index 4f342f75d00c..000000000000 --- a/arch/mn10300/kernel/profile.c +++ /dev/null @@ -1,51 +0,0 @@ -/* MN10300 Profiling setup - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -/* - * initialise the profiling if enabled - * - using with gdbstub will give anomalous results - * - can't be used with gdbstub if running at IRQ priority 0 - */ -static __init int profile_init(void) -{ - u16 tmp; - - if (!prof_buffer) - return 0; - - /* use timer 11 to drive the profiling interrupts */ - set_intr_stub(EXCEP_IRQ_LEVEL0, profile_handler); - - /* set IRQ priority at which to run */ - set_intr_level(TM11IRQ, GxICR_LEVEL_0); - - /* set up timer 11 - * - source: (IOCLK 33MHz)*2 = 66MHz - * - frequency: (33330000*2) / 8 / 20625 = 202Hz - */ - TM11BR = 20625 - 1; - TM11MD = TM8MD_SRC_IOCLK_8; - TM11MD |= TM8MD_INIT_COUNTER; - TM11MD &= ~TM8MD_INIT_COUNTER; - TM11MD |= TM8MD_COUNT_ENABLE; - - TM11ICR |= GxICR_ENABLE; - tmp = TM11ICR; - - printk(KERN_INFO "Profiling initiated on timer 11, priority 0, %uHz\n", - MN10300_IOCLK / 8 / (TM11BR + 1)); - printk(KERN_INFO "Profile histogram stored %p-%p\n", - prof_buffer, (u8 *)(prof_buffer + prof_len) - 1); - - return 0; -} - -__initcall(profile_init); diff --git a/arch/mn10300/kernel/ptrace.c b/arch/mn10300/kernel/ptrace.c deleted file mode 100644 index 8009876a7ac4..000000000000 --- a/arch/mn10300/kernel/ptrace.c +++ /dev/null @@ -1,386 +0,0 @@ -/* MN10300 Process tracing - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/sched/task_stack.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/regset.h> -#include <linux/elf.h> -#include <linux/tracehook.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/cacheflush.h> -#include <asm/fpu.h> -#include <asm/asm-offsets.h> - -/* - * translate ptrace register IDs into struct pt_regs offsets - */ -static const u8 ptrace_regid_to_frame[] = { - [PT_A3 << 2] = REG_A3, - [PT_A2 << 2] = REG_A2, - [PT_D3 << 2] = REG_D3, - [PT_D2 << 2] = REG_D2, - [PT_MCVF << 2] = REG_MCVF, - [PT_MCRL << 2] = REG_MCRL, - [PT_MCRH << 2] = REG_MCRH, - [PT_MDRQ << 2] = REG_MDRQ, - [PT_E1 << 2] = REG_E1, - [PT_E0 << 2] = REG_E0, - [PT_E7 << 2] = REG_E7, - [PT_E6 << 2] = REG_E6, - [PT_E5 << 2] = REG_E5, - [PT_E4 << 2] = REG_E4, - [PT_E3 << 2] = REG_E3, - [PT_E2 << 2] = REG_E2, - [PT_SP << 2] = REG_SP, - [PT_LAR << 2] = REG_LAR, - [PT_LIR << 2] = REG_LIR, - [PT_MDR << 2] = REG_MDR, - [PT_A1 << 2] = REG_A1, - [PT_A0 << 2] = REG_A0, - [PT_D1 << 2] = REG_D1, - [PT_D0 << 2] = REG_D0, - [PT_ORIG_D0 << 2] = REG_ORIG_D0, - [PT_EPSW << 2] = REG_EPSW, - [PT_PC << 2] = REG_PC, -}; - -static inline int get_stack_long(struct task_struct *task, int offset) -{ - return *(unsigned long *) - ((unsigned long) task->thread.uregs + offset); -} - -static inline -int put_stack_long(struct task_struct *task, int offset, unsigned long data) -{ - unsigned long stack; - - stack = (unsigned long) task->thread.uregs + offset; - *(unsigned long *) stack = data; - return 0; -} - -/* - * retrieve the contents of MN10300 userspace general registers - */ -static int genregs_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const struct pt_regs *regs = task_pt_regs(target); - int ret; - - /* we need to skip regs->next */ - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - regs, 0, PT_ORIG_D0 * sizeof(long)); - if (ret < 0) - return ret; - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - ®s->orig_d0, PT_ORIG_D0 * sizeof(long), - NR_PTREGS * sizeof(long)); - if (ret < 0) - return ret; - - return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - NR_PTREGS * sizeof(long), -1); -} - -/* - * update the contents of the MN10300 userspace general registers - */ -static int genregs_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - struct pt_regs *regs = task_pt_regs(target); - unsigned long tmp; - int ret; - - /* we need to skip regs->next */ - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - regs, 0, PT_ORIG_D0 * sizeof(long)); - if (ret < 0) - return ret; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - ®s->orig_d0, PT_ORIG_D0 * sizeof(long), - PT_EPSW * sizeof(long)); - if (ret < 0) - return ret; - - /* we need to mask off changes to EPSW */ - tmp = regs->epsw; - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &tmp, PT_EPSW * sizeof(long), - PT_PC * sizeof(long)); - tmp &= EPSW_FLAG_V | EPSW_FLAG_C | EPSW_FLAG_N | EPSW_FLAG_Z; - tmp |= regs->epsw & ~(EPSW_FLAG_V | EPSW_FLAG_C | EPSW_FLAG_N | - EPSW_FLAG_Z); - regs->epsw = tmp; - - if (ret < 0) - return ret; - - /* and finally load the PC */ - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - ®s->pc, PT_PC * sizeof(long), - NR_PTREGS * sizeof(long)); - - if (ret < 0) - return ret; - - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - NR_PTREGS * sizeof(long), -1); -} - -/* - * retrieve the contents of MN10300 userspace FPU registers - */ -static int fpuregs_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const struct fpu_state_struct *fpregs = &target->thread.fpu_state; - int ret; - - unlazy_fpu(target); - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - fpregs, 0, sizeof(*fpregs)); - if (ret < 0) - return ret; - - return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - sizeof(*fpregs), -1); -} - -/* - * update the contents of the MN10300 userspace FPU registers - */ -static int fpuregs_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - struct fpu_state_struct fpu_state = target->thread.fpu_state; - int ret; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &fpu_state, 0, sizeof(fpu_state)); - if (ret < 0) - return ret; - - fpu_kill_state(target); - target->thread.fpu_state = fpu_state; - set_using_fpu(target); - - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - sizeof(fpu_state), -1); -} - -/* - * determine if the FPU registers have actually been used - */ -static int fpuregs_active(struct task_struct *target, - const struct user_regset *regset) -{ - return is_using_fpu(target) ? regset->n : 0; -} - -/* - * Define the register sets available on the MN10300 under Linux - */ -enum mn10300_regset { - REGSET_GENERAL, - REGSET_FPU, -}; - -static const struct user_regset mn10300_regsets[] = { - /* - * General register format is: - * A3, A2, D3, D2, MCVF, MCRL, MCRH, MDRQ - * E1, E0, E7...E2, SP, LAR, LIR, MDR - * A1, A0, D1, D0, ORIG_D0, EPSW, PC - */ - [REGSET_GENERAL] = { - .core_note_type = NT_PRSTATUS, - .n = ELF_NGREG, - .size = sizeof(long), - .align = sizeof(long), - .get = genregs_get, - .set = genregs_set, - }, - /* - * FPU register format is: - * FS0-31, FPCR - */ - [REGSET_FPU] = { - .core_note_type = NT_PRFPREG, - .n = sizeof(struct fpu_state_struct) / sizeof(long), - .size = sizeof(long), - .align = sizeof(long), - .get = fpuregs_get, - .set = fpuregs_set, - .active = fpuregs_active, - }, -}; - -static const struct user_regset_view user_mn10300_native_view = { - .name = "mn10300", - .e_machine = EM_MN10300, - .regsets = mn10300_regsets, - .n = ARRAY_SIZE(mn10300_regsets), -}; - -const struct user_regset_view *task_user_regset_view(struct task_struct *task) -{ - return &user_mn10300_native_view; -} - -/* - * set the single-step bit - */ -void user_enable_single_step(struct task_struct *child) -{ -#ifndef CONFIG_MN10300_USING_JTAG - struct user *dummy = NULL; - long tmp; - - tmp = get_stack_long(child, (unsigned long) &dummy->regs.epsw); - tmp |= EPSW_T; - put_stack_long(child, (unsigned long) &dummy->regs.epsw, tmp); -#endif -} - -/* - * make sure the single-step bit is not set - */ -void user_disable_single_step(struct task_struct *child) -{ -#ifndef CONFIG_MN10300_USING_JTAG - struct user *dummy = NULL; - long tmp; - - tmp = get_stack_long(child, (unsigned long) &dummy->regs.epsw); - tmp &= ~EPSW_T; - put_stack_long(child, (unsigned long) &dummy->regs.epsw, tmp); -#endif -} - -void ptrace_disable(struct task_struct *child) -{ - user_disable_single_step(child); -} - -/* - * handle the arch-specific side of process tracing - */ -long arch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) -{ - unsigned long tmp; - int ret; - unsigned long __user *datap = (unsigned long __user *) data; - - switch (request) { - /* read the word at location addr in the USER area. */ - case PTRACE_PEEKUSR: - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - tmp = 0; /* Default return condition */ - if (addr < NR_PTREGS << 2) - tmp = get_stack_long(child, - ptrace_regid_to_frame[addr]); - ret = put_user(tmp, datap); - break; - - /* write the word at location addr in the USER area */ - case PTRACE_POKEUSR: - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - ret = 0; - if (addr < NR_PTREGS << 2) - ret = put_stack_long(child, ptrace_regid_to_frame[addr], - data); - break; - - case PTRACE_GETREGS: /* Get all integer regs from the child. */ - return copy_regset_to_user(child, &user_mn10300_native_view, - REGSET_GENERAL, - 0, NR_PTREGS * sizeof(long), - datap); - - case PTRACE_SETREGS: /* Set all integer regs in the child. */ - return copy_regset_from_user(child, &user_mn10300_native_view, - REGSET_GENERAL, - 0, NR_PTREGS * sizeof(long), - datap); - - case PTRACE_GETFPREGS: /* Get the child FPU state. */ - return copy_regset_to_user(child, &user_mn10300_native_view, - REGSET_FPU, - 0, sizeof(struct fpu_state_struct), - datap); - - case PTRACE_SETFPREGS: /* Set the child FPU state. */ - return copy_regset_from_user(child, &user_mn10300_native_view, - REGSET_FPU, - 0, sizeof(struct fpu_state_struct), - datap); - - default: - ret = ptrace_request(child, request, addr, data); - break; - } - - return ret; -} - -/* - * handle tracing of system call entry - * - return the revised system call number or ULONG_MAX to cause ENOSYS - */ -asmlinkage unsigned long syscall_trace_entry(struct pt_regs *regs) -{ - if (tracehook_report_syscall_entry(regs)) - /* tracing decided this syscall should not happen, so - * We'll return a bogus call number to get an ENOSYS - * error, but leave the original number in - * regs->orig_d0 - */ - return ULONG_MAX; - - return regs->orig_d0; -} - -/* - * handle tracing of system call exit - */ -asmlinkage void syscall_trace_exit(struct pt_regs *regs) -{ - tracehook_report_syscall_exit(regs, 0); -} diff --git a/arch/mn10300/kernel/rtc.c b/arch/mn10300/kernel/rtc.c deleted file mode 100644 index f81f37025072..000000000000 --- a/arch/mn10300/kernel/rtc.c +++ /dev/null @@ -1,46 +0,0 @@ -/* MN10300 RTC management - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/mc146818rtc.h> -#include <linux/ioport.h> -#include <linux/platform_device.h> - -#include <asm/rtc-regs.h> -#include <asm/rtc.h> - -DEFINE_SPINLOCK(rtc_lock); -EXPORT_SYMBOL(rtc_lock); - -static const __initdata struct resource res[] = { - DEFINE_RES_IO(RTC_PORT(0), RTC_IO_EXTENT), - DEFINE_RES_IRQ(RTC_IRQ), -}; - -/* - * calibrate the TSC clock against the RTC - */ -void __init calibrate_clock(void) -{ - unsigned char status; - - /* make sure the RTC is running and is set to operate in 24hr mode */ - status = RTSRC; - RTCRB |= RTCRB_SET; - RTCRB |= RTCRB_TM_24HR; - RTCRB &= ~RTCRB_DM_BINARY; - RTCRA |= RTCRA_DVR; - RTCRA &= ~RTCRA_DVR; - RTCRB &= ~RTCRB_SET; - - platform_device_register_simple("rtc_cmos", -1, res, ARRAY_SIZE(res)); -} diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c deleted file mode 100644 index 1b3d80d8a171..000000000000 --- a/arch/mn10300/kernel/setup.c +++ /dev/null @@ -1,283 +0,0 @@ -/* MN10300 Arch-specific initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/tty.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/cpu.h> -#include <asm/processor.h> -#include <linux/console.h> -#include <linux/uaccess.h> -#include <asm/setup.h> -#include <asm/io.h> -#include <asm/smp.h> -#include <proc/proc.h> -#include <asm/fpu.h> -#include <asm/sections.h> - -struct mn10300_cpuinfo boot_cpu_data; - -static char __initdata cmd_line[COMMAND_LINE_SIZE]; -char redboot_command_line[COMMAND_LINE_SIZE] = - "console=ttyS0,115200 root=/dev/mtdblock3 rw"; - -char __initdata redboot_platform_name[COMMAND_LINE_SIZE]; - -static struct resource code_resource = { - .start = 0x100000, - .end = 0, - .name = "Kernel code", -}; - -static struct resource data_resource = { - .start = 0, - .end = 0, - .name = "Kernel data", -}; - -static unsigned long __initdata phys_memory_base; -static unsigned long __initdata phys_memory_end; -static unsigned long __initdata memory_end; -unsigned long memory_size; - -struct thread_info *__current_ti = &init_thread_union.thread_info; -struct task_struct *__current = &init_task; - -#define mn10300_known_cpus 5 -static const char *const mn10300_cputypes[] = { - "am33-1", - "am33-2", - "am34-1", - "am33-3", - "am34-2", - "unknown" -}; - -/* - * Pick out the memory size. We look for mem=size, - * where size is "size[KkMm]" - */ -static int __init early_mem(char *p) -{ - memory_size = memparse(p, &p); - - if (memory_size == 0) - panic("Memory size not known\n"); - - return 0; -} -early_param("mem", early_mem); - -/* - * architecture specific setup - */ -void __init setup_arch(char **cmdline_p) -{ - unsigned long bootmap_size; - unsigned long kstart_pfn, start_pfn, free_pfn, end_pfn; - - cpu_init(); - unit_setup(); - smp_init_cpus(); - - /* save unparsed command line copy for /proc/cmdline */ - strlcpy(boot_command_line, redboot_command_line, COMMAND_LINE_SIZE); - - /* populate cmd_line too for later use, preserving boot_command_line */ - strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE); - *cmdline_p = cmd_line; - - parse_early_param(); - - memory_end = (unsigned long) CONFIG_KERNEL_RAM_BASE_ADDRESS + - memory_size; - if (memory_end > phys_memory_end) - memory_end = phys_memory_end; - - init_mm.start_code = (unsigned long)&_text; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) &_end; - - code_resource.start = virt_to_bus(&_text); - code_resource.end = virt_to_bus(&_etext)-1; - data_resource.start = virt_to_bus(&_etext); - data_resource.end = virt_to_bus(&_edata)-1; - - start_pfn = (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT); - kstart_pfn = PFN_UP(__pa(&_text)); - free_pfn = PFN_UP(__pa(&_end)); - end_pfn = PFN_DOWN(__pa(memory_end)); - - bootmap_size = init_bootmem_node(&contig_page_data, - free_pfn, - start_pfn, - end_pfn); - - if (kstart_pfn > start_pfn) - free_bootmem(PFN_PHYS(start_pfn), - PFN_PHYS(kstart_pfn - start_pfn)); - - free_bootmem(PFN_PHYS(free_pfn), - PFN_PHYS(end_pfn - free_pfn)); - - /* If interrupt vector table is in main ram, then we need to - reserve the page it is occupying. */ - if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS && - CONFIG_INTERRUPT_VECTOR_BASE < memory_end) - reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE, - BOOTMEM_DEFAULT); - - reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size, - BOOTMEM_DEFAULT); - -#ifdef CONFIG_VT -#if defined(CONFIG_VGA_CONSOLE) - conswitchp = &vga_con; -#elif defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif -#endif - - paging_init(); -} - -/* - * perform CPU initialisation - */ -void __init cpu_init(void) -{ - unsigned long cpurev = CPUREV, type; - - type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S; - if (type > mn10300_known_cpus) - type = mn10300_known_cpus; - - printk(KERN_INFO "Panasonic %s, rev %ld\n", - mn10300_cputypes[type], - (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S); - - get_mem_info(&phys_memory_base, &memory_size); - phys_memory_end = phys_memory_base + memory_size; - - fpu_init_state(); -} - -static struct cpu cpu_devices[NR_CPUS]; - -static int __init topology_init(void) -{ - int i; - - for_each_present_cpu(i) - register_cpu(&cpu_devices[i], i); - - return 0; -} - -subsys_initcall(topology_init); - -/* - * Get CPU information for use by the procfs. - */ -static int show_cpuinfo(struct seq_file *m, void *v) -{ -#ifdef CONFIG_SMP - struct mn10300_cpuinfo *c = v; - unsigned long cpu_id = c - cpu_data; - unsigned long cpurev = c->type, type, icachesz, dcachesz; -#else /* CONFIG_SMP */ - unsigned long cpu_id = 0; - unsigned long cpurev = CPUREV, type, icachesz, dcachesz; -#endif /* CONFIG_SMP */ - -#ifdef CONFIG_SMP - if (!cpu_online(cpu_id)) - return 0; -#endif - - type = (cpurev & CPUREV_TYPE) >> CPUREV_TYPE_S; - if (type > mn10300_known_cpus) - type = mn10300_known_cpus; - - icachesz = - ((cpurev & CPUREV_ICWAY ) >> CPUREV_ICWAY_S) * - ((cpurev & CPUREV_ICSIZE) >> CPUREV_ICSIZE_S) * - 1024; - - dcachesz = - ((cpurev & CPUREV_DCWAY ) >> CPUREV_DCWAY_S) * - ((cpurev & CPUREV_DCSIZE) >> CPUREV_DCSIZE_S) * - 1024; - - seq_printf(m, - "processor : %ld\n" - "vendor_id : " PROCESSOR_VENDOR_NAME "\n" - "cpu core : %s\n" - "cpu rev : %lu\n" - "model name : " PROCESSOR_MODEL_NAME "\n" - "icache size: %lu\n" - "dcache size: %lu\n", - cpu_id, - mn10300_cputypes[type], - (cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S, - icachesz, - dcachesz - ); - - seq_printf(m, - "ioclk speed: %lu.%02luMHz\n" - "bogomips : %lu.%02lu\n\n", - MN10300_IOCLK / 1000000, - (MN10300_IOCLK / 10000) % 100, -#ifdef CONFIG_SMP - c->loops_per_jiffy / (500000 / HZ), - (c->loops_per_jiffy / (5000 / HZ)) % 100 -#else /* CONFIG_SMP */ - loops_per_jiffy / (500000 / HZ), - (loops_per_jiffy / (5000 / HZ)) % 100 -#endif /* CONFIG_SMP */ - ); - - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - return *pos < NR_CPUS ? cpu_data + *pos : NULL; -} - -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return c_start(m, pos); -} - -static void c_stop(struct seq_file *m, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; diff --git a/arch/mn10300/kernel/sigframe.h b/arch/mn10300/kernel/sigframe.h deleted file mode 100644 index 0decba28ae84..000000000000 --- a/arch/mn10300/kernel/sigframe.h +++ /dev/null @@ -1,33 +0,0 @@ -/* MN10300 Signal frame definitions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -struct sigframe -{ - void (*pretcode)(void); - int sig; - struct sigcontext *psc; - struct sigcontext sc; - struct fpucontext fpuctx; - unsigned long extramask[_NSIG_WORDS-1]; - char retcode[8]; -}; - -struct rt_sigframe -{ - void (*pretcode)(void); - int sig; - struct siginfo *pinfo; - void *puc; - struct siginfo info; - struct ucontext uc; - struct fpucontext fpuctx; - char retcode[8]; -}; diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c deleted file mode 100644 index 2f3cb5734235..000000000000 --- a/arch/mn10300/kernel/signal.c +++ /dev/null @@ -1,431 +0,0 @@ -/* MN10300 Signal handling - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/unistd.h> -#include <linux/stddef.h> -#include <linux/tty.h> -#include <linux/personality.h> -#include <linux/suspend.h> -#include <linux/tracehook.h> -#include <asm/cacheflush.h> -#include <asm/ucontext.h> -#include <linux/uaccess.h> -#include <asm/fpu.h> -#include "sigframe.h" - -#define DEBUG_SIG 0 - -/* - * do a signal return; undo the signal stack. - */ -static int restore_sigcontext(struct pt_regs *regs, - struct sigcontext __user *sc, long *_d0) -{ - unsigned int err = 0; - - /* Always make any pending restarted system calls return -EINTR */ - current->restart_block.fn = do_no_restart_syscall; - - if (is_using_fpu(current)) - fpu_kill_state(current); - -#define COPY(x) err |= __get_user(regs->x, &sc->x) - COPY(d1); COPY(d2); COPY(d3); - COPY(a0); COPY(a1); COPY(a2); COPY(a3); - COPY(e0); COPY(e1); COPY(e2); COPY(e3); - COPY(e4); COPY(e5); COPY(e6); COPY(e7); - COPY(lar); COPY(lir); - COPY(mdr); COPY(mdrq); - COPY(mcvf); COPY(mcrl); COPY(mcrh); - COPY(sp); COPY(pc); -#undef COPY - - { - unsigned int tmpflags; -#ifndef CONFIG_MN10300_USING_JTAG -#define USER_EPSW (EPSW_FLAG_Z | EPSW_FLAG_N | EPSW_FLAG_C | EPSW_FLAG_V | \ - EPSW_T | EPSW_nAR) -#else -#define USER_EPSW (EPSW_FLAG_Z | EPSW_FLAG_N | EPSW_FLAG_C | EPSW_FLAG_V | \ - EPSW_nAR) -#endif - err |= __get_user(tmpflags, &sc->epsw); - regs->epsw = (regs->epsw & ~USER_EPSW) | - (tmpflags & USER_EPSW); - regs->orig_d0 = -1; /* disable syscall checks */ - } - - { - struct fpucontext *buf; - err |= __get_user(buf, &sc->fpucontext); - if (buf) { - if (!access_ok(VERIFY_READ, buf, sizeof(*buf))) - goto badframe; - err |= fpu_restore_sigcontext(buf); - } - } - - err |= __get_user(*_d0, &sc->d0); - return err; - -badframe: - return 1; -} - -/* - * standard signal return syscall - */ -asmlinkage long sys_sigreturn(void) -{ - struct sigframe __user *frame; - sigset_t set; - long d0; - - frame = (struct sigframe __user *) current_frame()->sp; - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__get_user(set.sig[0], &frame->sc.oldmask)) - goto badframe; - - if (_NSIG_WORDS > 1 && - __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask))) - goto badframe; - - set_current_blocked(&set); - - if (restore_sigcontext(current_frame(), &frame->sc, &d0)) - goto badframe; - - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -/* - * realtime signal return syscall - */ -asmlinkage long sys_rt_sigreturn(void) -{ - struct rt_sigframe __user *frame; - sigset_t set; - long d0; - - frame = (struct rt_sigframe __user *) current_frame()->sp; - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - set_current_blocked(&set); - - if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0)) - goto badframe; - - if (restore_altstack(&frame->uc.uc_stack)) - goto badframe; - - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -/* - * store the userspace context into a signal frame - */ -static int setup_sigcontext(struct sigcontext __user *sc, - struct fpucontext *fpuctx, - struct pt_regs *regs, - unsigned long mask) -{ - int tmp, err = 0; - -#define COPY(x) err |= __put_user(regs->x, &sc->x) - COPY(d0); COPY(d1); COPY(d2); COPY(d3); - COPY(a0); COPY(a1); COPY(a2); COPY(a3); - COPY(e0); COPY(e1); COPY(e2); COPY(e3); - COPY(e4); COPY(e5); COPY(e6); COPY(e7); - COPY(lar); COPY(lir); - COPY(mdr); COPY(mdrq); - COPY(mcvf); COPY(mcrl); COPY(mcrh); - COPY(sp); COPY(epsw); COPY(pc); -#undef COPY - - tmp = fpu_setup_sigcontext(fpuctx); - if (tmp < 0) - err = 1; - else - err |= __put_user(tmp ? fpuctx : NULL, &sc->fpucontext); - - /* non-iBCS2 extensions.. */ - err |= __put_user(mask, &sc->oldmask); - - return err; -} - -/* - * determine which stack to use.. - */ -static inline void __user *get_sigframe(struct ksignal *ksig, - struct pt_regs *regs, - size_t frame_size) -{ - unsigned long sp = sigsp(regs->sp, ksig); - - return (void __user *) ((sp - frame_size) & ~7UL); -} - -/* - * set up a normal signal frame - */ -static int setup_frame(struct ksignal *ksig, sigset_t *set, - struct pt_regs *regs) -{ - struct sigframe __user *frame; - int sig = ksig->sig; - - frame = get_sigframe(ksig, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - return -EFAULT; - - if (__put_user(sig, &frame->sig) < 0 || - __put_user(&frame->sc, &frame->psc) < 0) - return -EFAULT; - - if (setup_sigcontext(&frame->sc, &frame->fpuctx, regs, set->sig[0])) - return -EFAULT; - - if (_NSIG_WORDS > 1) { - if (__copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask))) - return -EFAULT; - } - - /* set up to return from userspace. If provided, use a stub already in - * userspace */ - if (ksig->ka.sa.sa_flags & SA_RESTORER) { - if (__put_user(ksig->ka.sa.sa_restorer, &frame->pretcode)) - return -EFAULT; - } else { - if (__put_user((void (*)(void))frame->retcode, - &frame->pretcode)) - return -EFAULT; - /* this is mov $,d0; syscall 0 */ - if (__put_user(0x2c, (char *)(frame->retcode + 0)) || - __put_user(__NR_sigreturn, (char *)(frame->retcode + 1)) || - __put_user(0x00, (char *)(frame->retcode + 2)) || - __put_user(0xf0, (char *)(frame->retcode + 3)) || - __put_user(0xe0, (char *)(frame->retcode + 4))) - return -EFAULT; - flush_icache_range((unsigned long) frame->retcode, - (unsigned long) frame->retcode + 5); - } - - /* set up registers for signal handler */ - regs->sp = (unsigned long) frame; - regs->pc = (unsigned long) ksig->ka.sa.sa_handler; - regs->d0 = sig; - regs->d1 = (unsigned long) &frame->sc; - -#if DEBUG_SIG - printk(KERN_DEBUG "SIG deliver %d (%s:%d): sp=%p pc=%lx ra=%p\n", - sig, current->comm, current->pid, frame, regs->pc, - frame->pretcode); -#endif - - return 0; -} - -/* - * set up a realtime signal frame - */ -static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, - struct pt_regs *regs) -{ - struct rt_sigframe __user *frame; - int sig = ksig->sig; - - frame = get_sigframe(ksig, regs, sizeof(*frame)); - - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - return -EFAULT; - - if (__put_user(sig, &frame->sig) || - __put_user(&frame->info, &frame->pinfo) || - __put_user(&frame->uc, &frame->puc) || - copy_siginfo_to_user(&frame->info, &ksig->info)) - return -EFAULT; - - /* create the ucontext. */ - if (__put_user(0, &frame->uc.uc_flags) || - __put_user(0, &frame->uc.uc_link) || - __save_altstack(&frame->uc.uc_stack, regs->sp) || - setup_sigcontext(&frame->uc.uc_mcontext, - &frame->fpuctx, regs, set->sig[0]) || - __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set))) - return -EFAULT; - - /* set up to return from userspace. If provided, use a stub already in - * userspace */ - if (ksig->ka.sa.sa_flags & SA_RESTORER) { - if (__put_user(ksig->ka.sa.sa_restorer, &frame->pretcode)) - return -EFAULT; - - } else { - if (__put_user((void(*)(void))frame->retcode, - &frame->pretcode) || - /* This is mov $,d0; syscall 0 */ - __put_user(0x2c, (char *)(frame->retcode + 0)) || - __put_user(__NR_rt_sigreturn, - (char *)(frame->retcode + 1)) || - __put_user(0x00, (char *)(frame->retcode + 2)) || - __put_user(0xf0, (char *)(frame->retcode + 3)) || - __put_user(0xe0, (char *)(frame->retcode + 4))) - return -EFAULT; - - flush_icache_range((u_long) frame->retcode, - (u_long) frame->retcode + 5); - } - - /* Set up registers for signal handler */ - regs->sp = (unsigned long) frame; - regs->pc = (unsigned long) ksig->ka.sa.sa_handler; - regs->d0 = sig; - regs->d1 = (long) &frame->info; - -#if DEBUG_SIG - printk(KERN_DEBUG "SIG deliver %d (%s:%d): sp=%p pc=%lx ra=%p\n", - sig, current->comm, current->pid, frame, regs->pc, - frame->pretcode); -#endif - - return 0; -} - -static inline void stepback(struct pt_regs *regs) -{ - regs->pc -= 2; - regs->orig_d0 = -1; -} - -/* - * handle the actual delivery of a signal to userspace - */ -static int handle_signal(struct ksignal *ksig, struct pt_regs *regs) -{ - sigset_t *oldset = sigmask_to_save(); - int ret; - - /* Are we from a system call? */ - if (regs->orig_d0 >= 0) { - /* If so, check system call restarting.. */ - switch (regs->d0) { - case -ERESTART_RESTARTBLOCK: - case -ERESTARTNOHAND: - regs->d0 = -EINTR; - break; - - case -ERESTARTSYS: - if (!(ksig->ka.sa.sa_flags & SA_RESTART)) { - regs->d0 = -EINTR; - break; - } - - /* fallthrough */ - case -ERESTARTNOINTR: - regs->d0 = regs->orig_d0; - stepback(regs); - } - } - - /* Set up the stack frame */ - if (ksig->ka.sa.sa_flags & SA_SIGINFO) - ret = setup_rt_frame(ksig, oldset, regs); - else - ret = setup_frame(ksig, oldset, regs); - - signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP)); - return 0; -} - -/* - * handle a potential signal - */ -static void do_signal(struct pt_regs *regs) -{ - struct ksignal ksig; - - if (get_signal(&ksig)) { - handle_signal(&ksig, regs); - return; - } - - /* did we come from a system call? */ - if (regs->orig_d0 >= 0) { - /* restart the system call - no handlers present */ - switch (regs->d0) { - case -ERESTARTNOHAND: - case -ERESTARTSYS: - case -ERESTARTNOINTR: - regs->d0 = regs->orig_d0; - stepback(regs); - break; - - case -ERESTART_RESTARTBLOCK: - regs->d0 = __NR_restart_syscall; - stepback(regs); - break; - } - } - - /* if there's no signal to deliver, we just put the saved sigmask - * back */ - restore_saved_sigmask(); -} - -/* - * notification of userspace execution resumption - * - triggered by current->work.notify_resume - */ -asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags) -{ - /* Pending single-step? */ - if (thread_info_flags & _TIF_SINGLESTEP) { -#ifndef CONFIG_MN10300_USING_JTAG - regs->epsw |= EPSW_T; - clear_thread_flag(TIF_SINGLESTEP); -#else - BUG(); /* no h/w single-step if using JTAG unit */ -#endif - } - - /* deal with pending signal delivery */ - if (thread_info_flags & _TIF_SIGPENDING) - do_signal(regs); - - if (thread_info_flags & _TIF_NOTIFY_RESUME) { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(current_frame()); - } -} diff --git a/arch/mn10300/kernel/smp-low.S b/arch/mn10300/kernel/smp-low.S deleted file mode 100644 index 71f1b2faaa0b..000000000000 --- a/arch/mn10300/kernel/smp-low.S +++ /dev/null @@ -1,97 +0,0 @@ -/* SMP IPI low-level handler - * - * Copyright (C) 2006-2007 Matsushita Electric Industrial Co., Ltd. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/thread_info.h> -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> -#include <proc/smp-regs.h> -#include <asm/asm-offsets.h> -#include <asm/frame.inc> - - .am33_2 - -############################################################################### -# -# IPI interrupt handler -# -############################################################################### - .globl mn10300_low_ipi_handler -mn10300_low_ipi_handler: - add -4,sp - mov d0,(sp) - movhu (IAGR),d0 - and IAGR_GN,d0 - lsr 0x2,d0 -#ifdef CONFIG_MN10300_CACHE_ENABLED - cmp FLUSH_CACHE_IPI,d0 - beq mn10300_flush_cache_ipi -#endif - cmp SMP_BOOT_IRQ,d0 - beq mn10300_smp_boot_ipi - /* OTHERS */ - mov (sp),d0 - add 4,sp -#ifdef CONFIG_GDBSTUB - jmp gdbstub_io_rx_handler -#else - jmp end -#endif - -############################################################################### -# -# Cache flush IPI interrupt handler -# -############################################################################### -#ifdef CONFIG_MN10300_CACHE_ENABLED -mn10300_flush_cache_ipi: - mov (sp),d0 - add 4,sp - - /* FLUSH_CACHE_IPI */ - add -4,sp - SAVE_ALL - mov GxICR_DETECT,d2 - movbu d2,(GxICR(FLUSH_CACHE_IPI)) # ACK the interrupt - movhu (GxICR(FLUSH_CACHE_IPI)),d2 - call smp_cache_interrupt[],0 - RESTORE_ALL - jmp end -#endif - -############################################################################### -# -# SMP boot CPU IPI interrupt handler -# -############################################################################### -mn10300_smp_boot_ipi: - /* clear interrupt */ - movhu (GxICR(SMP_BOOT_IRQ)),d0 - and ~GxICR_REQUEST,d0 - movhu d0,(GxICR(SMP_BOOT_IRQ)) - mov (sp),d0 - add 4,sp - - # get stack - mov (CPUID),a0 - add -1,a0 - add a0,a0 - add a0,a0 - mov (start_stack,a0),a0 - mov a0,sp - jmp initialize_secondary - - -# Jump here after RTI to suppress the icache lookahead -end: diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c deleted file mode 100644 index 35d2c3fe6f76..000000000000 --- a/arch/mn10300/kernel/smp.c +++ /dev/null @@ -1,1186 +0,0 @@ -/* SMP support routines. - * - * Copyright (C) 2006-2008 Panasonic Corporation - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/jiffies.h> -#include <linux/cpumask.h> -#include <linux/err.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/sched/mm.h> -#include <linux/sched/task.h> -#include <linux/profile.h> -#include <linux/smp.h> -#include <linux/cpu.h> -#include <asm/tlbflush.h> -#include <asm/bitops.h> -#include <asm/processor.h> -#include <asm/bug.h> -#include <asm/exceptions.h> -#include <asm/hardirq.h> -#include <asm/fpu.h> -#include <asm/mmu_context.h> -#include <asm/thread_info.h> -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> -#include "internal.h" - -#ifdef CONFIG_HOTPLUG_CPU -#include <asm/cacheflush.h> - -static unsigned long sleep_mode[NR_CPUS]; - -static void run_sleep_cpu(unsigned int cpu); -static void run_wakeup_cpu(unsigned int cpu); -#endif /* CONFIG_HOTPLUG_CPU */ - -/* - * Debug Message function - */ - -#undef DEBUG_SMP -#ifdef DEBUG_SMP -#define Dprintk(fmt, ...) printk(KERN_DEBUG fmt, ##__VA_ARGS__) -#else -#define Dprintk(fmt, ...) no_printk(KERN_DEBUG fmt, ##__VA_ARGS__) -#endif - -/* timeout value in msec for smp_nmi_call_function. zero is no timeout. */ -#define CALL_FUNCTION_NMI_IPI_TIMEOUT 0 - -/* - * Structure and data for smp_nmi_call_function(). - */ -struct nmi_call_data_struct { - smp_call_func_t func; - void *info; - cpumask_t started; - cpumask_t finished; - int wait; - char size_alignment[0] - __attribute__ ((__aligned__(SMP_CACHE_BYTES))); -} __attribute__ ((__aligned__(SMP_CACHE_BYTES))); - -static DEFINE_SPINLOCK(smp_nmi_call_lock); -static struct nmi_call_data_struct *nmi_call_data; - -/* - * Data structures and variables - */ -static cpumask_t cpu_callin_map; /* Bitmask of callin CPUs */ -static cpumask_t cpu_callout_map; /* Bitmask of callout CPUs */ -cpumask_t cpu_boot_map; /* Bitmask of boot APs */ -unsigned long start_stack[NR_CPUS - 1]; - -/* - * Per CPU parameters - */ -struct mn10300_cpuinfo cpu_data[NR_CPUS] __cacheline_aligned; - -static int cpucount; /* The count of boot CPUs */ -static cpumask_t smp_commenced_mask; -cpumask_t cpu_initialized __initdata = CPU_MASK_NONE; - -/* - * Function Prototypes - */ -static int do_boot_cpu(int); -static void smp_show_cpu_info(int cpu_id); -static void smp_callin(void); -static void smp_online(void); -static void smp_store_cpu_info(int); -static void smp_cpu_init(void); -static void smp_tune_scheduling(void); -static void send_IPI_mask(const cpumask_t *cpumask, int irq); -static void init_ipi(void); - -/* - * IPI Initialization interrupt definitions - */ -static void mn10300_ipi_disable(unsigned int irq); -static void mn10300_ipi_enable(unsigned int irq); -static void mn10300_ipi_chip_disable(struct irq_data *d); -static void mn10300_ipi_chip_enable(struct irq_data *d); -static void mn10300_ipi_ack(struct irq_data *d); -static void mn10300_ipi_nop(struct irq_data *d); - -static struct irq_chip mn10300_ipi_type = { - .name = "cpu_ipi", - .irq_disable = mn10300_ipi_chip_disable, - .irq_enable = mn10300_ipi_chip_enable, - .irq_ack = mn10300_ipi_ack, - .irq_eoi = mn10300_ipi_nop -}; - -static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id); -static irqreturn_t smp_call_function_interrupt(int irq, void *dev_id); - -static struct irqaction reschedule_ipi = { - .handler = smp_reschedule_interrupt, - .flags = IRQF_NOBALANCING, - .name = "smp reschedule IPI" -}; -static struct irqaction call_function_ipi = { - .handler = smp_call_function_interrupt, - .flags = IRQF_NOBALANCING, - .name = "smp call function IPI" -}; - -#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id); -static struct irqaction local_timer_ipi = { - .handler = smp_ipi_timer_interrupt, - .flags = IRQF_NOBALANCING, - .name = "smp local timer IPI" -}; -#endif - -/** - * init_ipi - Initialise the IPI mechanism - */ -static void init_ipi(void) -{ - unsigned long flags; - u16 tmp16; - - /* set up the reschedule IPI */ - irq_set_chip_and_handler(RESCHEDULE_IPI, &mn10300_ipi_type, - handle_percpu_irq); - setup_irq(RESCHEDULE_IPI, &reschedule_ipi); - set_intr_level(RESCHEDULE_IPI, RESCHEDULE_GxICR_LV); - mn10300_ipi_enable(RESCHEDULE_IPI); - - /* set up the call function IPI */ - irq_set_chip_and_handler(CALL_FUNC_SINGLE_IPI, &mn10300_ipi_type, - handle_percpu_irq); - setup_irq(CALL_FUNC_SINGLE_IPI, &call_function_ipi); - set_intr_level(CALL_FUNC_SINGLE_IPI, CALL_FUNCTION_GxICR_LV); - mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI); - - /* set up the local timer IPI */ -#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \ - defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) - irq_set_chip_and_handler(LOCAL_TIMER_IPI, &mn10300_ipi_type, - handle_percpu_irq); - setup_irq(LOCAL_TIMER_IPI, &local_timer_ipi); - set_intr_level(LOCAL_TIMER_IPI, LOCAL_TIMER_GxICR_LV); - mn10300_ipi_enable(LOCAL_TIMER_IPI); -#endif - -#ifdef CONFIG_MN10300_CACHE_ENABLED - /* set up the cache flush IPI */ - irq_set_chip(FLUSH_CACHE_IPI, &mn10300_ipi_type); - flags = arch_local_cli_save(); - __set_intr_stub(NUM2EXCEP_IRQ_LEVEL(FLUSH_CACHE_GxICR_LV), - mn10300_low_ipi_handler); - GxICR(FLUSH_CACHE_IPI) = FLUSH_CACHE_GxICR_LV | GxICR_DETECT; - mn10300_ipi_enable(FLUSH_CACHE_IPI); - arch_local_irq_restore(flags); -#endif - - /* set up the NMI call function IPI */ - irq_set_chip(CALL_FUNCTION_NMI_IPI, &mn10300_ipi_type); - flags = arch_local_cli_save(); - GxICR(CALL_FUNCTION_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT; - tmp16 = GxICR(CALL_FUNCTION_NMI_IPI); - arch_local_irq_restore(flags); - - /* set up the SMP boot IPI */ - flags = arch_local_cli_save(); - __set_intr_stub(NUM2EXCEP_IRQ_LEVEL(SMP_BOOT_GxICR_LV), - mn10300_low_ipi_handler); - arch_local_irq_restore(flags); - -#ifdef CONFIG_KERNEL_DEBUGGER - irq_set_chip(DEBUGGER_NMI_IPI, &mn10300_ipi_type); -#endif -} - -/** - * mn10300_ipi_shutdown - Shut down handling of an IPI - * @irq: The IPI to be shut down. - */ -static void mn10300_ipi_shutdown(unsigned int irq) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - - tmp = GxICR(irq); - GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_DETECT; - tmp = GxICR(irq); - - arch_local_irq_restore(flags); -} - -/** - * mn10300_ipi_enable - Enable an IPI - * @irq: The IPI to be enabled. - */ -static void mn10300_ipi_enable(unsigned int irq) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - - tmp = GxICR(irq); - GxICR(irq) = (tmp & GxICR_LEVEL) | GxICR_ENABLE; - tmp = GxICR(irq); - - arch_local_irq_restore(flags); -} - -static void mn10300_ipi_chip_enable(struct irq_data *d) -{ - mn10300_ipi_enable(d->irq); -} - -/** - * mn10300_ipi_disable - Disable an IPI - * @irq: The IPI to be disabled. - */ -static void mn10300_ipi_disable(unsigned int irq) -{ - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - - tmp = GxICR(irq); - GxICR(irq) = tmp & GxICR_LEVEL; - tmp = GxICR(irq); - - arch_local_irq_restore(flags); -} - -static void mn10300_ipi_chip_disable(struct irq_data *d) -{ - mn10300_ipi_disable(d->irq); -} - - -/** - * mn10300_ipi_ack - Acknowledge an IPI interrupt in the PIC - * @irq: The IPI to be acknowledged. - * - * Clear the interrupt detection flag for the IPI on the appropriate interrupt - * channel in the PIC. - */ -static void mn10300_ipi_ack(struct irq_data *d) -{ - unsigned int irq = d->irq; - unsigned long flags; - u16 tmp; - - flags = arch_local_cli_save(); - GxICR_u8(irq) = GxICR_DETECT; - tmp = GxICR(irq); - arch_local_irq_restore(flags); -} - -/** - * mn10300_ipi_nop - Dummy IPI action - * @irq: The IPI to be acted upon. - */ -static void mn10300_ipi_nop(struct irq_data *d) -{ -} - -/** - * send_IPI_mask - Send IPIs to all CPUs in list - * @cpumask: The list of CPUs to target. - * @irq: The IPI request to be sent. - * - * Send the specified IPI to all the CPUs in the list, not waiting for them to - * finish before returning. The caller is responsible for synchronisation if - * that is needed. - */ -static void send_IPI_mask(const cpumask_t *cpumask, int irq) -{ - int i; - u16 tmp; - - for (i = 0; i < NR_CPUS; i++) { - if (cpumask_test_cpu(i, cpumask)) { - /* send IPI */ - tmp = CROSS_GxICR(irq, i); - CROSS_GxICR(irq, i) = - tmp | GxICR_REQUEST | GxICR_DETECT; - tmp = CROSS_GxICR(irq, i); /* flush write buffer */ - } - } -} - -/** - * send_IPI_self - Send an IPI to this CPU. - * @irq: The IPI request to be sent. - * - * Send the specified IPI to the current CPU. - */ -void send_IPI_self(int irq) -{ - send_IPI_mask(cpumask_of(smp_processor_id()), irq); -} - -/** - * send_IPI_allbutself - Send IPIs to all the other CPUs. - * @irq: The IPI request to be sent. - * - * Send the specified IPI to all CPUs in the system barring the current one, - * not waiting for them to finish before returning. The caller is responsible - * for synchronisation if that is needed. - */ -void send_IPI_allbutself(int irq) -{ - cpumask_t cpumask; - - cpumask_copy(&cpumask, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &cpumask); - send_IPI_mask(&cpumask, irq); -} - -void arch_send_call_function_ipi_mask(const struct cpumask *mask) -{ - BUG(); - /*send_IPI_mask(mask, CALL_FUNCTION_IPI);*/ -} - -void arch_send_call_function_single_ipi(int cpu) -{ - send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI); -} - -/** - * smp_send_reschedule - Send reschedule IPI to a CPU - * @cpu: The CPU to target. - */ -void smp_send_reschedule(int cpu) -{ - send_IPI_mask(cpumask_of(cpu), RESCHEDULE_IPI); -} - -/** - * smp_nmi_call_function - Send a call function NMI IPI to all CPUs - * @func: The function to ask to be run. - * @info: The context data to pass to that function. - * @wait: If true, wait (atomically) until function is run on all CPUs. - * - * Send a non-maskable request to all CPUs in the system, requesting them to - * run the specified function with the given context data, and, potentially, to - * wait for completion of that function on all CPUs. - * - * Returns 0 if successful, -ETIMEDOUT if we were asked to wait, but hit the - * timeout. - */ -int smp_nmi_call_function(smp_call_func_t func, void *info, int wait) -{ - struct nmi_call_data_struct data; - unsigned long flags; - unsigned int cnt; - int cpus, ret = 0; - - cpus = num_online_cpus() - 1; - if (cpus < 1) - return 0; - - data.func = func; - data.info = info; - cpumask_copy(&data.started, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &data.started); - data.wait = wait; - if (wait) - data.finished = data.started; - - spin_lock_irqsave(&smp_nmi_call_lock, flags); - nmi_call_data = &data; - smp_mb(); - - /* Send a message to all other CPUs and wait for them to respond */ - send_IPI_allbutself(CALL_FUNCTION_NMI_IPI); - - /* Wait for response */ - if (CALL_FUNCTION_NMI_IPI_TIMEOUT > 0) { - for (cnt = 0; - cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT && - !cpumask_empty(&data.started); - cnt++) - mdelay(1); - - if (wait && cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT) { - for (cnt = 0; - cnt < CALL_FUNCTION_NMI_IPI_TIMEOUT && - !cpumask_empty(&data.finished); - cnt++) - mdelay(1); - } - - if (cnt >= CALL_FUNCTION_NMI_IPI_TIMEOUT) - ret = -ETIMEDOUT; - - } else { - /* If timeout value is zero, wait until cpumask has been - * cleared */ - while (!cpumask_empty(&data.started)) - barrier(); - if (wait) - while (!cpumask_empty(&data.finished)) - barrier(); - } - - spin_unlock_irqrestore(&smp_nmi_call_lock, flags); - return ret; -} - -/** - * smp_jump_to_debugger - Make other CPUs enter the debugger by sending an IPI - * - * Send a non-maskable request to all other CPUs in the system, instructing - * them to jump into the debugger. The caller is responsible for checking that - * the other CPUs responded to the instruction. - * - * The caller should make sure that this CPU's debugger IPI is disabled. - */ -void smp_jump_to_debugger(void) -{ - if (num_online_cpus() > 1) - /* Send a message to all other CPUs */ - send_IPI_allbutself(DEBUGGER_NMI_IPI); -} - -/** - * stop_this_cpu - Callback to stop a CPU. - * @unused: Callback context (ignored). - */ -void stop_this_cpu(void *unused) -{ - static volatile int stopflag; - unsigned long flags; - -#ifdef CONFIG_GDBSTUB - /* In case of single stepping smp_send_stop by other CPU, - * clear procindebug to avoid deadlock. - */ - atomic_set(&procindebug[smp_processor_id()], 0); -#endif /* CONFIG_GDBSTUB */ - - flags = arch_local_cli_save(); - set_cpu_online(smp_processor_id(), false); - - while (!stopflag) - cpu_relax(); - - set_cpu_online(smp_processor_id(), true); - arch_local_irq_restore(flags); -} - -/** - * smp_send_stop - Send a stop request to all CPUs. - */ -void smp_send_stop(void) -{ - smp_nmi_call_function(stop_this_cpu, NULL, 0); -} - -/** - * smp_reschedule_interrupt - Reschedule IPI handler - * @irq: The interrupt number. - * @dev_id: The device ID. - * - * Returns IRQ_HANDLED to indicate we handled the interrupt successfully. - */ -static irqreturn_t smp_reschedule_interrupt(int irq, void *dev_id) -{ - scheduler_ipi(); - return IRQ_HANDLED; -} - -/** - * smp_call_function_interrupt - Call function IPI handler - * @irq: The interrupt number. - * @dev_id: The device ID. - * - * Returns IRQ_HANDLED to indicate we handled the interrupt successfully. - */ -static irqreturn_t smp_call_function_interrupt(int irq, void *dev_id) -{ - /* generic_smp_call_function_interrupt(); */ - generic_smp_call_function_single_interrupt(); - return IRQ_HANDLED; -} - -/** - * smp_nmi_call_function_interrupt - Non-maskable call function IPI handler - */ -void smp_nmi_call_function_interrupt(void) -{ - smp_call_func_t func = nmi_call_data->func; - void *info = nmi_call_data->info; - int wait = nmi_call_data->wait; - - /* Notify the initiating CPU that I've grabbed the data and am about to - * execute the function - */ - smp_mb(); - cpumask_clear_cpu(smp_processor_id(), &nmi_call_data->started); - (*func)(info); - - if (wait) { - smp_mb(); - cpumask_clear_cpu(smp_processor_id(), - &nmi_call_data->finished); - } -} - -#if !defined(CONFIG_GENERIC_CLOCKEVENTS) || \ - defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -/** - * smp_ipi_timer_interrupt - Local timer IPI handler - * @irq: The interrupt number. - * @dev_id: The device ID. - * - * Returns IRQ_HANDLED to indicate we handled the interrupt successfully. - */ -static irqreturn_t smp_ipi_timer_interrupt(int irq, void *dev_id) -{ - return local_timer_interrupt(); -} -#endif - -void __init smp_init_cpus(void) -{ - int i; - for (i = 0; i < NR_CPUS; i++) { - set_cpu_possible(i, true); - set_cpu_present(i, true); - } -} - -/** - * smp_cpu_init - Initialise AP in start_secondary. - * - * For this Application Processor, set up init_mm, initialise FPU and set - * interrupt level 0-6 setting. - */ -static void __init smp_cpu_init(void) -{ - unsigned long flags; - int cpu_id = smp_processor_id(); - u16 tmp16; - - if (test_and_set_bit(cpu_id, &cpu_initialized)) { - printk(KERN_WARNING "CPU#%d already initialized!\n", cpu_id); - for (;;) - local_irq_enable(); - } - printk(KERN_INFO "Initializing CPU#%d\n", cpu_id); - - mmgrab(&init_mm); - current->active_mm = &init_mm; - BUG_ON(current->mm); - - enter_lazy_tlb(&init_mm, current); - - /* Force FPU initialization */ - clear_using_fpu(current); - - GxICR(CALL_FUNC_SINGLE_IPI) = CALL_FUNCTION_GxICR_LV | GxICR_DETECT; - mn10300_ipi_enable(CALL_FUNC_SINGLE_IPI); - - GxICR(LOCAL_TIMER_IPI) = LOCAL_TIMER_GxICR_LV | GxICR_DETECT; - mn10300_ipi_enable(LOCAL_TIMER_IPI); - - GxICR(RESCHEDULE_IPI) = RESCHEDULE_GxICR_LV | GxICR_DETECT; - mn10300_ipi_enable(RESCHEDULE_IPI); - -#ifdef CONFIG_MN10300_CACHE_ENABLED - GxICR(FLUSH_CACHE_IPI) = FLUSH_CACHE_GxICR_LV | GxICR_DETECT; - mn10300_ipi_enable(FLUSH_CACHE_IPI); -#endif - - mn10300_ipi_shutdown(SMP_BOOT_IRQ); - - /* Set up the non-maskable call function IPI */ - flags = arch_local_cli_save(); - GxICR(CALL_FUNCTION_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT; - tmp16 = GxICR(CALL_FUNCTION_NMI_IPI); - arch_local_irq_restore(flags); -} - -/** - * smp_prepare_cpu_init - Initialise CPU in startup_secondary - * - * Set interrupt level 0-6 setting and init ICR of the kernel debugger. - */ -void smp_prepare_cpu_init(void) -{ - int loop; - - /* Set the interrupt vector registers */ - IVAR0 = EXCEP_IRQ_LEVEL0; - IVAR1 = EXCEP_IRQ_LEVEL1; - IVAR2 = EXCEP_IRQ_LEVEL2; - IVAR3 = EXCEP_IRQ_LEVEL3; - IVAR4 = EXCEP_IRQ_LEVEL4; - IVAR5 = EXCEP_IRQ_LEVEL5; - IVAR6 = EXCEP_IRQ_LEVEL6; - - /* Disable all interrupts and set to priority 6 (lowest) */ - for (loop = 0; loop < GxICR_NUM_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; - -#ifdef CONFIG_KERNEL_DEBUGGER - /* initialise the kernel debugger interrupt */ - do { - unsigned long flags; - u16 tmp16; - - flags = arch_local_cli_save(); - GxICR(DEBUGGER_NMI_IPI) = GxICR_NMI | GxICR_ENABLE | GxICR_DETECT; - tmp16 = GxICR(DEBUGGER_NMI_IPI); - arch_local_irq_restore(flags); - } while (0); -#endif -} - -/** - * start_secondary - Activate a secondary CPU (AP) - * @unused: Thread parameter (ignored). - */ -int __init start_secondary(void *unused) -{ - smp_cpu_init(); - smp_callin(); - while (!cpumask_test_cpu(smp_processor_id(), &smp_commenced_mask)) - cpu_relax(); - - local_flush_tlb(); - preempt_disable(); - smp_online(); - -#ifdef CONFIG_GENERIC_CLOCKEVENTS - init_clockevents(); -#endif - cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); - return 0; -} - -/** - * smp_prepare_cpus - Boot up secondary CPUs (APs) - * @max_cpus: Maximum number of CPUs to boot. - * - * Call do_boot_cpu, and boot up APs. - */ -void __init smp_prepare_cpus(unsigned int max_cpus) -{ - int phy_id; - - /* Setup boot CPU information */ - smp_store_cpu_info(0); - smp_tune_scheduling(); - - init_ipi(); - - /* If SMP should be disabled, then finish */ - if (max_cpus == 0) { - printk(KERN_INFO "SMP mode deactivated.\n"); - goto smp_done; - } - - /* Boot secondary CPUs (for which phy_id > 0) */ - for (phy_id = 0; phy_id < NR_CPUS; phy_id++) { - /* Don't boot primary CPU */ - if (max_cpus <= cpucount + 1) - continue; - if (phy_id != 0) - do_boot_cpu(phy_id); - set_cpu_possible(phy_id, true); - smp_show_cpu_info(phy_id); - } - -smp_done: - Dprintk("Boot done.\n"); -} - -/** - * smp_store_cpu_info - Save a CPU's information - * @cpu: The CPU to save for. - * - * Save boot_cpu_data and jiffy for the specified CPU. - */ -static void __init smp_store_cpu_info(int cpu) -{ - struct mn10300_cpuinfo *ci = &cpu_data[cpu]; - - *ci = boot_cpu_data; - ci->loops_per_jiffy = loops_per_jiffy; - ci->type = CPUREV; -} - -/** - * smp_tune_scheduling - Set time slice value - * - * Nothing to do here. - */ -static void __init smp_tune_scheduling(void) -{ -} - -/** - * do_boot_cpu: Boot up one CPU - * @phy_id: Physical ID of CPU to boot. - * - * Send an IPI to a secondary CPU to boot it. Returns 0 on success, 1 - * otherwise. - */ -static int __init do_boot_cpu(int phy_id) -{ - struct task_struct *idle; - unsigned long send_status, callin_status; - int timeout, cpu_id; - - send_status = GxICR_REQUEST; - callin_status = 0; - timeout = 0; - cpu_id = phy_id; - - cpucount++; - - /* Create idle thread for this CPU */ - idle = fork_idle(cpu_id); - if (IS_ERR(idle)) - panic("Failed fork for CPU#%d.", cpu_id); - - idle->thread.pc = (unsigned long)start_secondary; - - printk(KERN_NOTICE "Booting CPU#%d\n", cpu_id); - start_stack[cpu_id - 1] = idle->thread.sp; - - task_thread_info(idle)->cpu = cpu_id; - - /* Send boot IPI to AP */ - send_IPI_mask(cpumask_of(phy_id), SMP_BOOT_IRQ); - - Dprintk("Waiting for send to finish...\n"); - - /* Wait for AP's IPI receive in 100[ms] */ - do { - udelay(1000); - send_status = - CROSS_GxICR(SMP_BOOT_IRQ, phy_id) & GxICR_REQUEST; - } while (send_status == GxICR_REQUEST && timeout++ < 100); - - Dprintk("Waiting for cpu_callin_map.\n"); - - if (send_status == 0) { - /* Allow AP to start initializing */ - cpumask_set_cpu(cpu_id, &cpu_callout_map); - - /* Wait for setting cpu_callin_map */ - timeout = 0; - do { - udelay(1000); - callin_status = cpumask_test_cpu(cpu_id, - &cpu_callin_map); - } while (callin_status == 0 && timeout++ < 5000); - - if (callin_status == 0) - Dprintk("Not responding.\n"); - } else { - printk(KERN_WARNING "IPI not delivered.\n"); - } - - if (send_status == GxICR_REQUEST || callin_status == 0) { - cpumask_clear_cpu(cpu_id, &cpu_callout_map); - cpumask_clear_cpu(cpu_id, &cpu_callin_map); - cpumask_clear_cpu(cpu_id, &cpu_initialized); - cpucount--; - return 1; - } - return 0; -} - -/** - * smp_show_cpu_info - Show SMP CPU information - * @cpu: The CPU of interest. - */ -static void __init smp_show_cpu_info(int cpu) -{ - struct mn10300_cpuinfo *ci = &cpu_data[cpu]; - - printk(KERN_INFO - "CPU#%d : ioclk speed: %lu.%02luMHz : bogomips : %lu.%02lu\n", - cpu, - MN10300_IOCLK / 1000000, - (MN10300_IOCLK / 10000) % 100, - ci->loops_per_jiffy / (500000 / HZ), - (ci->loops_per_jiffy / (5000 / HZ)) % 100); -} - -/** - * smp_callin - Set cpu_callin_map of the current CPU ID - */ -static void __init smp_callin(void) -{ - unsigned long timeout; - int cpu; - - cpu = smp_processor_id(); - timeout = jiffies + (2 * HZ); - - if (cpumask_test_cpu(cpu, &cpu_callin_map)) { - printk(KERN_ERR "CPU#%d already present.\n", cpu); - BUG(); - } - Dprintk("CPU#%d waiting for CALLOUT\n", cpu); - - /* Wait for AP startup 2s total */ - while (time_before(jiffies, timeout)) { - if (cpumask_test_cpu(cpu, &cpu_callout_map)) - break; - cpu_relax(); - } - - if (!time_before(jiffies, timeout)) { - printk(KERN_ERR - "BUG: CPU#%d started up but did not get a callout!\n", - cpu); - BUG(); - } - -#ifdef CONFIG_CALIBRATE_DELAY - calibrate_delay(); /* Get our bogomips */ -#endif - - /* Save our processor parameters */ - smp_store_cpu_info(cpu); - - /* Allow the boot processor to continue */ - cpumask_set_cpu(cpu, &cpu_callin_map); -} - -/** - * smp_online - Set cpu_online_mask - */ -static void __init smp_online(void) -{ - int cpu; - - cpu = smp_processor_id(); - - notify_cpu_starting(cpu); - - set_cpu_online(cpu, true); - - local_irq_enable(); -} - -/** - * smp_cpus_done - - * @max_cpus: Maximum CPU count. - * - * Do nothing. - */ -void __init smp_cpus_done(unsigned int max_cpus) -{ -} - -/* - * smp_prepare_boot_cpu - Set up stuff for the boot processor. - * - * Set up the cpu_online_mask, cpu_callout_map and cpu_callin_map of the boot - * processor (CPU 0). - */ -void smp_prepare_boot_cpu(void) -{ - cpumask_set_cpu(0, &cpu_callout_map); - cpumask_set_cpu(0, &cpu_callin_map); - current_thread_info()->cpu = 0; -} - -/* - * initialize_secondary - Initialise a secondary CPU (Application Processor). - * - * Set SP register and jump to thread's PC address. - */ -void initialize_secondary(void) -{ - asm volatile ( - "mov %0,sp \n" - "jmp (%1) \n" - : - : "a"(current->thread.sp), "a"(current->thread.pc)); -} - -/** - * __cpu_up - Set smp_commenced_mask for the nominated CPU - * @cpu: The target CPU. - */ -int __cpu_up(unsigned int cpu, struct task_struct *tidle) -{ - int timeout; - -#ifdef CONFIG_HOTPLUG_CPU - if (sleep_mode[cpu]) - run_wakeup_cpu(cpu); -#endif /* CONFIG_HOTPLUG_CPU */ - - cpumask_set_cpu(cpu, &smp_commenced_mask); - - /* Wait 5s total for a response */ - for (timeout = 0 ; timeout < 5000 ; timeout++) { - if (cpu_online(cpu)) - break; - udelay(1000); - } - - BUG_ON(!cpu_online(cpu)); - return 0; -} - -/** - * setup_profiling_timer - Set up the profiling timer - * @multiplier - The frequency multiplier to use - * - * The frequency of the profiling timer can be changed by writing a multiplier - * value into /proc/profile. - */ -int setup_profiling_timer(unsigned int multiplier) -{ - return -EINVAL; -} - -/* - * CPU hotplug routines - */ -#ifdef CONFIG_HOTPLUG_CPU - -static DEFINE_PER_CPU(struct cpu, cpu_devices); - -static int __init topology_init(void) -{ - int cpu, ret; - - for_each_cpu(cpu) { - ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL); - if (ret) - printk(KERN_WARNING - "topology_init: register_cpu %d failed (%d)\n", - cpu, ret); - } - return 0; -} - -subsys_initcall(topology_init); - -int __cpu_disable(void) -{ - int cpu = smp_processor_id(); - if (cpu == 0) - return -EBUSY; - - migrate_irqs(); - cpumask_clear_cpu(cpu, &mm_cpumask(current->active_mm)); - return 0; -} - -void __cpu_die(unsigned int cpu) -{ - run_sleep_cpu(cpu); -} - -#ifdef CONFIG_MN10300_CACHE_ENABLED -static inline void hotplug_cpu_disable_cache(void) -{ - int tmp; - asm volatile( - " movhu (%1),%0 \n" - " and %2,%0 \n" - " movhu %0,(%1) \n" - "1: movhu (%1),%0 \n" - " btst %3,%0 \n" - " bne 1b \n" - : "=&r"(tmp) - : "a"(&CHCTR), - "i"(~(CHCTR_ICEN | CHCTR_DCEN)), - "i"(CHCTR_ICBUSY | CHCTR_DCBUSY) - : "memory", "cc"); -} - -static inline void hotplug_cpu_enable_cache(void) -{ - int tmp; - asm volatile( - "movhu (%1),%0 \n" - "or %2,%0 \n" - "movhu %0,(%1) \n" - : "=&r"(tmp) - : "a"(&CHCTR), - "i"(CHCTR_ICEN | CHCTR_DCEN) - : "memory", "cc"); -} - -static inline void hotplug_cpu_invalidate_cache(void) -{ - int tmp; - asm volatile ( - "movhu (%1),%0 \n" - "or %2,%0 \n" - "movhu %0,(%1) \n" - : "=&r"(tmp) - : "a"(&CHCTR), - "i"(CHCTR_ICINV | CHCTR_DCINV) - : "cc"); -} - -#else /* CONFIG_MN10300_CACHE_ENABLED */ -#define hotplug_cpu_disable_cache() do {} while (0) -#define hotplug_cpu_enable_cache() do {} while (0) -#define hotplug_cpu_invalidate_cache() do {} while (0) -#endif /* CONFIG_MN10300_CACHE_ENABLED */ - -/** - * hotplug_cpu_nmi_call_function - Call a function on other CPUs for hotplug - * @cpumask: List of target CPUs. - * @func: The function to call on those CPUs. - * @info: The context data for the function to be called. - * @wait: Whether to wait for the calls to complete. - * - * Non-maskably call a function on another CPU for hotplug purposes. - * - * This function must be called with maskable interrupts disabled. - */ -static int hotplug_cpu_nmi_call_function(cpumask_t cpumask, - smp_call_func_t func, void *info, - int wait) -{ - /* - * The address and the size of nmi_call_func_mask_data - * need to be aligned on L1_CACHE_BYTES. - */ - static struct nmi_call_data_struct nmi_call_func_mask_data - __cacheline_aligned; - unsigned long start, end; - - start = (unsigned long)&nmi_call_func_mask_data; - end = start + sizeof(struct nmi_call_data_struct); - - nmi_call_func_mask_data.func = func; - nmi_call_func_mask_data.info = info; - nmi_call_func_mask_data.started = cpumask; - nmi_call_func_mask_data.wait = wait; - if (wait) - nmi_call_func_mask_data.finished = cpumask; - - spin_lock(&smp_nmi_call_lock); - nmi_call_data = &nmi_call_func_mask_data; - mn10300_local_dcache_flush_range(start, end); - smp_wmb(); - - send_IPI_mask(cpumask, CALL_FUNCTION_NMI_IPI); - - do { - mn10300_local_dcache_inv_range(start, end); - barrier(); - } while (!cpumask_empty(&nmi_call_func_mask_data.started)); - - if (wait) { - do { - mn10300_local_dcache_inv_range(start, end); - barrier(); - } while (!cpumask_empty(&nmi_call_func_mask_data.finished)); - } - - spin_unlock(&smp_nmi_call_lock); - return 0; -} - -static void restart_wakeup_cpu(void) -{ - unsigned int cpu = smp_processor_id(); - - cpumask_set_cpu(cpu, &cpu_callin_map); - local_flush_tlb(); - set_cpu_online(cpu, true); - smp_wmb(); -} - -static void prepare_sleep_cpu(void *unused) -{ - sleep_mode[smp_processor_id()] = 1; - smp_mb(); - mn10300_local_dcache_flush_inv(); - hotplug_cpu_disable_cache(); - hotplug_cpu_invalidate_cache(); -} - -/* when this function called, IE=0, NMID=0. */ -static void sleep_cpu(void *unused) -{ - unsigned int cpu_id = smp_processor_id(); - /* - * CALL_FUNCTION_NMI_IPI for wakeup_cpu() shall not be requested, - * before this cpu goes in SLEEP mode. - */ - do { - smp_mb(); - __sleep_cpu(); - } while (sleep_mode[cpu_id]); - restart_wakeup_cpu(); -} - -static void run_sleep_cpu(unsigned int cpu) -{ - unsigned long flags; - cpumask_t cpumask; - - cpumask_copy(&cpumask, &cpumask_of(cpu)); - flags = arch_local_cli_save(); - hotplug_cpu_nmi_call_function(cpumask, prepare_sleep_cpu, NULL, 1); - hotplug_cpu_nmi_call_function(cpumask, sleep_cpu, NULL, 0); - udelay(1); /* delay for the cpu to sleep. */ - arch_local_irq_restore(flags); -} - -static void wakeup_cpu(void) -{ - hotplug_cpu_invalidate_cache(); - hotplug_cpu_enable_cache(); - smp_mb(); - sleep_mode[smp_processor_id()] = 0; -} - -static void run_wakeup_cpu(unsigned int cpu) -{ - unsigned long flags; - - flags = arch_local_cli_save(); -#if NR_CPUS == 2 - mn10300_local_dcache_flush_inv(); -#else - /* - * Before waking up the cpu, - * all online cpus should stop and flush D-Cache for global data. - */ -#error not support NR_CPUS > 2, when CONFIG_HOTPLUG_CPU=y. -#endif - hotplug_cpu_nmi_call_function(cpumask_of(cpu), wakeup_cpu, NULL, 1); - arch_local_irq_restore(flags); -} - -#endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/mn10300/kernel/switch_to.S b/arch/mn10300/kernel/switch_to.S deleted file mode 100644 index de3e74fc9ea0..000000000000 --- a/arch/mn10300/kernel/switch_to.S +++ /dev/null @@ -1,179 +0,0 @@ -############################################################################### -# -# MN10300 Context switch operation -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/thread_info.h> -#include <asm/cpu-regs.h> -#ifdef CONFIG_SMP -#include <proc/smp-regs.h> -#endif /* CONFIG_SMP */ - - .text - -############################################################################### -# -# struct task_struct *__switch_to(struct thread_struct *prev, -# struct thread_struct *next, -# struct task_struct *prev_task) -# -############################################################################### -ENTRY(__switch_to) - movm [d2,d3,a2,a3,exreg1],(sp) - or EPSW_NMID,epsw - - mov (44,sp),d2 - - mov d0,a0 - mov d1,a1 - - # save prev context - mov __switch_back,d0 - mov sp,a2 - mov a2,(THREAD_SP,a0) - mov a3,(THREAD_A3,a0) - -#ifdef CONFIG_KGDB - btst 0xff,(kgdb_single_step) - bne __switch_to__lift_sstep_bp -__switch_to__continue: -#endif - mov d0,(THREAD_PC,a0) - - mov (THREAD_A3,a1),a3 - mov (THREAD_SP,a1),a2 - - # switch - mov a2,sp - - # load next context - GET_THREAD_INFO a2 - mov a2,(__current_ti) - mov (TI_task,a2),a2 - mov a2,(__current) -#ifdef CONFIG_MN10300_CURRENT_IN_E2 - mov a2,e2 -#endif - - mov (THREAD_PC,a1),a2 - mov d2,d0 # for ret_from_fork - mov d0,a0 # for __switch_to - - jmp (a2) - -__switch_back: - and ~EPSW_NMID,epsw - ret [d2,d3,a2,a3,exreg1],32 - -#ifdef CONFIG_KGDB -############################################################################### -# -# Lift the single-step breakpoints when the task being traced is switched out -# A0 = prev -# A1 = next -# -############################################################################### -__switch_to__lift_sstep_bp: - add -12,sp - mov a0,e4 - mov a1,e5 - - # Clear the single-step flag to prevent us coming this way until we get - # switched back in - bclr 0xff,(kgdb_single_step) - - # Remove first breakpoint - mov (kgdb_sstep_bp_addr),a2 - cmp 0,a2 - beq 1f - movbu (kgdb_sstep_bp),d0 - movbu d0,(a2) -#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE) - mov a2,d0 - mov a2,d1 - add 1,d1 - calls flush_icache_range -#endif -1: - - # Remove second breakpoint - mov (kgdb_sstep_bp_addr+4),a2 - cmp 0,a2 - beq 2f - movbu (kgdb_sstep_bp+1),d0 - movbu d0,(a2) -#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE) - mov a2,d0 - mov a2,d1 - add 1,d1 - calls flush_icache_range -#endif -2: - - # Change the resumption address and return - mov __switch_back__reinstall_sstep_bp,d0 - mov e4,a0 - mov e5,a1 - add 12,sp - bra __switch_to__continue - -############################################################################### -# -# Reinstall the single-step breakpoints when the task being traced is switched -# back in (A1 points to the new thread_struct). -# -############################################################################### -__switch_back__reinstall_sstep_bp: - add -12,sp - mov a0,e4 # save the return value - mov 0xff,d3 - - # Reinstall first breakpoint - mov (kgdb_sstep_bp_addr),a2 - cmp 0,a2 - beq 1f - movbu (a2),d0 - movbu d0,(kgdb_sstep_bp) - movbu d3,(a2) -#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE) - mov a2,d0 - mov a2,d1 - add 1,d1 - calls flush_icache_range -#endif -1: - - # Reinstall second breakpoint - mov (kgdb_sstep_bp_addr+4),a2 - cmp 0,a2 - beq 2f - movbu (a2),d0 - movbu d0,(kgdb_sstep_bp+1) - movbu d3,(a2) -#if defined(CONFIG_MN10300_CACHE_FLUSH_ICACHE) || defined(CONFIG_MN10300_CACHE_INV_ICACHE) - mov a2,d0 - mov a2,d1 - add 1,d1 - calls flush_icache_range -#endif -2: - - mov d3,(kgdb_single_step) - - # Restore the return value (the previous thread_struct pointer) - mov e4,a0 - mov a0,d0 - add 12,sp - bra __switch_back - -#endif /* CONFIG_KGDB */ diff --git a/arch/mn10300/kernel/sys_mn10300.c b/arch/mn10300/kernel/sys_mn10300.c deleted file mode 100644 index f999981e55c0..000000000000 --- a/arch/mn10300/kernel/sys_mn10300.c +++ /dev/null @@ -1,33 +0,0 @@ -/* MN10300 Weird system calls - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/syscalls.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/mman.h> -#include <linux/file.h> -#include <linux/tty.h> - -#include <linux/uaccess.h> - -asmlinkage long old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long offset) -{ - if (offset & ~PAGE_MASK) - return -EINVAL; - return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); -} diff --git a/arch/mn10300/kernel/time.c b/arch/mn10300/kernel/time.c deleted file mode 100644 index 06b83b17c5f1..000000000000 --- a/arch/mn10300/kernel/time.c +++ /dev/null @@ -1,125 +0,0 @@ -/* MN10300 Low level time management - * - * Copyright (C) 2007-2008 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from arch/i386/kernel/time.c - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/sched/clock.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/time.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/profile.h> -#include <linux/cnt32_to_63.h> -#include <linux/clocksource.h> -#include <linux/clockchips.h> -#include <asm/irq.h> -#include <asm/div64.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <asm/rtc.h> -#include "internal.h" - -static unsigned long mn10300_last_tsc; /* time-stamp counter at last time - * interrupt occurred */ - -static unsigned long sched_clock_multiplier; - -/* - * scheduler clock - returns current time in nanosec units. - */ -unsigned long long sched_clock(void) -{ - union { - unsigned long long ll; - unsigned l[2]; - } tsc64, result; - unsigned long tmp; - unsigned product[3]; /* 96-bit intermediate value */ - - /* cnt32_to_63() is not safe with preemption */ - preempt_disable(); - - /* expand the tsc to 64-bits. - * - sched_clock() must be called once a minute or better or the - * following will go horribly wrong - see cnt32_to_63() - */ - tsc64.ll = cnt32_to_63(get_cycles()) & 0x7fffffffffffffffULL; - - preempt_enable(); - - /* scale the 64-bit TSC value to a nanosecond value via a 96-bit - * intermediate - */ - asm("mulu %2,%0,%3,%0 \n" /* LSW * mult -> 0:%3:%0 */ - "mulu %2,%1,%2,%1 \n" /* MSW * mult -> %2:%1:0 */ - "add %3,%1 \n" - "addc 0,%2 \n" /* result in %2:%1:%0 */ - : "=r"(product[0]), "=r"(product[1]), "=r"(product[2]), "=r"(tmp) - : "0"(tsc64.l[0]), "1"(tsc64.l[1]), "2"(sched_clock_multiplier) - : "cc"); - - result.l[0] = product[1] << 16 | product[0] >> 16; - result.l[1] = product[2] << 16 | product[1] >> 16; - - return result.ll; -} - -/* - * initialise the scheduler clock - */ -static void __init mn10300_sched_clock_init(void) -{ - sched_clock_multiplier = - __muldiv64u(NSEC_PER_SEC, 1 << 16, MN10300_TSCCLK); -} - -/** - * local_timer_interrupt - Local timer interrupt handler - * - * Handle local timer interrupts for this CPU. They may have been propagated - * to this CPU from the CPU that actually gets them by way of an IPI. - */ -irqreturn_t local_timer_interrupt(void) -{ - profile_tick(CPU_PROFILING); - update_process_times(user_mode(get_irq_regs())); - return IRQ_HANDLED; -} - -/* - * initialise the various timers used by the main part of the kernel - */ -void __init time_init(void) -{ - /* we need the prescalar running to be able to use IOCLK/8 - * - IOCLK runs at 1/4 (ST5 open) or 1/8 (ST5 closed) internal CPU clock - * - IOCLK runs at Fosc rate (crystal speed) - */ - TMPSCNT |= TMPSCNT_ENABLE; - - init_clocksource(); - - printk(KERN_INFO - "timestamp counter I/O clock running at %lu.%02lu" - " (calibrated against RTC)\n", - MN10300_TSCCLK / 1000000, (MN10300_TSCCLK / 10000) % 100); - - mn10300_last_tsc = read_timestamp_counter(); - - init_clockevents(); - -#ifdef CONFIG_MN10300_WD_TIMER - /* start the watchdog timer */ - watchdog_go(); -#endif - - mn10300_sched_clock_init(); -} diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c deleted file mode 100644 index 72d1015b2ae7..000000000000 --- a/arch/mn10300/kernel/traps.c +++ /dev/null @@ -1,615 +0,0 @@ -/* MN10300 Exception handling - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/sched/debug.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/kdebug.h> -#include <linux/bug.h> -#include <linux/irq.h> -#include <linux/export.h> -#include <asm/processor.h> -#include <linux/uaccess.h> -#include <asm/io.h> -#include <linux/atomic.h> -#include <asm/smp.h> -#include <asm/pgalloc.h> -#include <asm/cacheflush.h> -#include <asm/cpu-regs.h> -#include <asm/busctl-regs.h> -#include <unit/leds.h> -#include <asm/fpu.h> -#include <asm/sections.h> -#include <asm/debugger.h> -#include "internal.h" - -#if (CONFIG_INTERRUPT_VECTOR_BASE & 0xffffff) -#error "INTERRUPT_VECTOR_BASE not aligned to 16MiB boundary!" -#endif - -int kstack_depth_to_print = 24; - -spinlock_t die_lock = __SPIN_LOCK_UNLOCKED(die_lock); - -struct exception_to_signal_map { - u8 signo; - u32 si_code; -}; - -static const struct exception_to_signal_map exception_to_signal_map[256] = { - /* MMU exceptions */ - [EXCEP_ITLBMISS >> 3] = { 0, 0 }, - [EXCEP_DTLBMISS >> 3] = { 0, 0 }, - [EXCEP_IAERROR >> 3] = { 0, 0 }, - [EXCEP_DAERROR >> 3] = { 0, 0 }, - - /* system exceptions */ - [EXCEP_TRAP >> 3] = { SIGTRAP, TRAP_BRKPT }, - [EXCEP_ISTEP >> 3] = { SIGTRAP, TRAP_TRACE }, /* Monitor */ - [EXCEP_IBREAK >> 3] = { SIGTRAP, TRAP_HWBKPT }, /* Monitor */ - [EXCEP_OBREAK >> 3] = { SIGTRAP, TRAP_HWBKPT }, /* Monitor */ - [EXCEP_PRIVINS >> 3] = { SIGILL, ILL_PRVOPC }, - [EXCEP_UNIMPINS >> 3] = { SIGILL, ILL_ILLOPC }, - [EXCEP_UNIMPEXINS >> 3] = { SIGILL, ILL_ILLOPC }, - [EXCEP_MEMERR >> 3] = { SIGSEGV, SEGV_ACCERR }, - [EXCEP_MISALIGN >> 3] = { SIGBUS, BUS_ADRALN }, - [EXCEP_BUSERROR >> 3] = { SIGBUS, BUS_ADRERR }, - [EXCEP_ILLINSACC >> 3] = { SIGSEGV, SEGV_ACCERR }, - [EXCEP_ILLDATACC >> 3] = { SIGSEGV, SEGV_ACCERR }, - [EXCEP_IOINSACC >> 3] = { SIGSEGV, SEGV_ACCERR }, - [EXCEP_PRIVINSACC >> 3] = { SIGSEGV, SEGV_ACCERR }, /* userspace */ - [EXCEP_PRIVDATACC >> 3] = { SIGSEGV, SEGV_ACCERR }, /* userspace */ - [EXCEP_DATINSACC >> 3] = { SIGSEGV, SEGV_ACCERR }, - [EXCEP_DOUBLE_FAULT >> 3] = { SIGILL, ILL_BADSTK }, - - /* FPU exceptions */ - [EXCEP_FPU_DISABLED >> 3] = { SIGILL, ILL_COPROC }, - [EXCEP_FPU_UNIMPINS >> 3] = { SIGILL, ILL_COPROC }, - [EXCEP_FPU_OPERATION >> 3] = { SIGFPE, FPE_INTDIV }, - - /* interrupts */ - [EXCEP_WDT >> 3] = { SIGALRM, 0 }, - [EXCEP_NMI >> 3] = { SIGQUIT, 0 }, - [EXCEP_IRQ_LEVEL0 >> 3] = { SIGINT, 0 }, - [EXCEP_IRQ_LEVEL1 >> 3] = { 0, 0 }, - [EXCEP_IRQ_LEVEL2 >> 3] = { 0, 0 }, - [EXCEP_IRQ_LEVEL3 >> 3] = { 0, 0 }, - [EXCEP_IRQ_LEVEL4 >> 3] = { 0, 0 }, - [EXCEP_IRQ_LEVEL5 >> 3] = { 0, 0 }, - [EXCEP_IRQ_LEVEL6 >> 3] = { 0, 0 }, - - /* system calls */ - [EXCEP_SYSCALL0 >> 3] = { 0, 0 }, - [EXCEP_SYSCALL1 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL2 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL3 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL4 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL5 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL6 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL7 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL8 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL9 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL10 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL11 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL12 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL13 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL14 >> 3] = { SIGILL, ILL_ILLTRP }, - [EXCEP_SYSCALL15 >> 3] = { SIGABRT, 0 }, -}; - -/* - * Handle kernel exceptions. - * - * See if there's a fixup handler we can force a jump to when an exception - * happens due to something kernel code did - */ -int die_if_no_fixup(const char *str, struct pt_regs *regs, - enum exception_code code) -{ - u8 opcode; - int signo, si_code; - - if (user_mode(regs)) - return 0; - - peripheral_leds_display_exception(code); - - signo = exception_to_signal_map[code >> 3].signo; - si_code = exception_to_signal_map[code >> 3].si_code; - - switch (code) { - /* see if we can fixup the kernel accessing memory */ - case EXCEP_ITLBMISS: - case EXCEP_DTLBMISS: - case EXCEP_IAERROR: - case EXCEP_DAERROR: - case EXCEP_MEMERR: - case EXCEP_MISALIGN: - case EXCEP_BUSERROR: - case EXCEP_ILLDATACC: - case EXCEP_IOINSACC: - case EXCEP_PRIVINSACC: - case EXCEP_PRIVDATACC: - case EXCEP_DATINSACC: - if (fixup_exception(regs)) - return 1; - break; - - case EXCEP_TRAP: - case EXCEP_UNIMPINS: - if (probe_kernel_read(&opcode, (u8 *)regs->pc, 1) < 0) - break; - if (opcode == 0xff) { - if (notify_die(DIE_BREAKPOINT, str, regs, code, 0, 0)) - return 1; - if (at_debugger_breakpoint(regs)) - regs->pc++; - signo = SIGTRAP; - si_code = TRAP_BRKPT; - } - break; - - case EXCEP_SYSCALL1 ... EXCEP_SYSCALL14: - /* syscall return addr is _after_ the instruction */ - regs->pc -= 2; - break; - - case EXCEP_SYSCALL15: - if (report_bug(regs->pc, regs) == BUG_TRAP_TYPE_WARN) - return 1; - - /* syscall return addr is _after_ the instruction */ - regs->pc -= 2; - break; - - default: - break; - } - - if (debugger_intercept(code, signo, si_code, regs) == 0) - return 1; - - if (notify_die(DIE_GPF, str, regs, code, 0, 0)) - return 1; - - /* make the process die as the last resort */ - die(str, regs, code); -} - -/* - * General exception handler - */ -asmlinkage void handle_exception(struct pt_regs *regs, u32 intcode) -{ - siginfo_t info; - - /* deal with kernel exceptions here */ - if (die_if_no_fixup(NULL, regs, intcode)) - return; - - /* otherwise it's a userspace exception */ - info.si_signo = exception_to_signal_map[intcode >> 3].signo; - info.si_code = exception_to_signal_map[intcode >> 3].si_code; - info.si_errno = 0; - info.si_addr = (void *) regs->pc; - force_sig_info(info.si_signo, &info, current); -} - -/* - * handle NMI - */ -asmlinkage void nmi(struct pt_regs *regs, enum exception_code code) -{ - /* see if gdbstub wants to deal with it */ - if (debugger_intercept(code, SIGQUIT, 0, regs)) - return; - - printk(KERN_WARNING "--- Register Dump ---\n"); - show_registers(regs); - printk(KERN_WARNING "---------------------\n"); -} - -/* - * show a stack trace from the specified stack pointer - */ -void show_trace(unsigned long *sp) -{ - unsigned long bottom, stack, addr, fp, raslot; - - printk(KERN_EMERG "\nCall Trace:\n"); - - //stack = (unsigned long)sp; - asm("mov sp,%0" : "=a"(stack)); - asm("mov a3,%0" : "=r"(fp)); - - raslot = ULONG_MAX; - bottom = (stack + THREAD_SIZE) & ~(THREAD_SIZE - 1); - for (; stack < bottom; stack += sizeof(addr)) { - addr = *(unsigned long *)stack; - if (stack == fp) { - if (addr > stack && addr < bottom) { - fp = addr; - raslot = stack + sizeof(addr); - continue; - } - fp = 0; - raslot = ULONG_MAX; - } - - if (__kernel_text_address(addr)) { - printk(" [<%08lx>]", addr); - if (stack >= raslot) - raslot = ULONG_MAX; - else - printk(" ?"); - printk(" %pS\n", (void *)addr); - } - } - - printk("\n"); -} - -/* - * show the raw stack from the specified stack pointer - */ -void show_stack(struct task_struct *task, unsigned long *sp) -{ - unsigned long *stack; - int i; - - if (!sp) - sp = (unsigned long *) &sp; - - stack = sp; - printk(KERN_EMERG "Stack:"); - for (i = 0; i < kstack_depth_to_print; i++) { - if (((long) stack & (THREAD_SIZE - 1)) == 0) - break; - if ((i % 8) == 0) - printk(KERN_EMERG " "); - printk("%08lx ", *stack++); - } - - show_trace(sp); -} - -/* - * dump the register file in the specified exception frame - */ -void show_registers_only(struct pt_regs *regs) -{ - unsigned long ssp; - - ssp = (unsigned long) regs + sizeof(*regs); - - printk(KERN_EMERG "PC: %08lx EPSW: %08lx SSP: %08lx mode: %s\n", - regs->pc, regs->epsw, ssp, user_mode(regs) ? "User" : "Super"); - printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - regs->d0, regs->d1, regs->d2, regs->d3); - printk(KERN_EMERG "a0: %08lx a1: %08lx a2: %08lx a3: %08lx\n", - regs->a0, regs->a1, regs->a2, regs->a3); - printk(KERN_EMERG "e0: %08lx e1: %08lx e2: %08lx e3: %08lx\n", - regs->e0, regs->e1, regs->e2, regs->e3); - printk(KERN_EMERG "e4: %08lx e5: %08lx e6: %08lx e7: %08lx\n", - regs->e4, regs->e5, regs->e6, regs->e7); - printk(KERN_EMERG "lar: %08lx lir: %08lx mdr: %08lx usp: %08lx\n", - regs->lar, regs->lir, regs->mdr, regs->sp); - printk(KERN_EMERG "cvf: %08lx crl: %08lx crh: %08lx drq: %08lx\n", - regs->mcvf, regs->mcrl, regs->mcrh, regs->mdrq); - printk(KERN_EMERG "threadinfo=%p task=%p)\n", - current_thread_info(), current); - - if ((unsigned long) current >= PAGE_OFFSET && - (unsigned long) current < (unsigned long)high_memory) - printk(KERN_EMERG "Process %s (pid: %d)\n", - current->comm, current->pid); - -#ifdef CONFIG_SMP - printk(KERN_EMERG "CPUID: %08x\n", CPUID); -#endif - printk(KERN_EMERG "CPUP: %04hx\n", CPUP); - printk(KERN_EMERG "TBR: %08x\n", TBR); - printk(KERN_EMERG "DEAR: %08x\n", DEAR); - printk(KERN_EMERG "sISR: %08x\n", sISR); - printk(KERN_EMERG "NMICR: %04hx\n", NMICR); - printk(KERN_EMERG "BCBERR: %08x\n", BCBERR); - printk(KERN_EMERG "BCBEAR: %08x\n", BCBEAR); - printk(KERN_EMERG "MMUFCR: %08x\n", MMUFCR); - printk(KERN_EMERG "IPTEU : %08x IPTEL2: %08x\n", IPTEU, IPTEL2); - printk(KERN_EMERG "DPTEU: %08x DPTEL2: %08x\n", DPTEU, DPTEL2); -} - -/* - * dump the registers and the stack - */ -void show_registers(struct pt_regs *regs) -{ - unsigned long sp; - int i; - - show_registers_only(regs); - - if (!user_mode(regs)) - sp = (unsigned long) regs + sizeof(*regs); - else - sp = regs->sp; - - /* when in-kernel, we also print out the stack and code at the - * time of the fault.. - */ - if (!user_mode(regs)) { - printk(KERN_EMERG "\n"); - show_stack(current, (unsigned long *) sp); - -#if 0 - printk(KERN_EMERG "\nCode: "); - if (regs->pc < PAGE_OFFSET) - goto bad; - - for (i = 0; i < 20; i++) { - unsigned char c; - if (__get_user(c, &((unsigned char *) regs->pc)[i])) - goto bad; - printk("%02x ", c); - } -#else - i = 0; -#endif - } - - printk("\n"); - return; - -#if 0 -bad: - printk(KERN_EMERG " Bad PC value."); - break; -#endif -} - -/* - * - */ -void show_trace_task(struct task_struct *tsk) -{ - unsigned long sp = tsk->thread.sp; - - /* User space on another CPU? */ - if ((sp ^ (unsigned long) tsk) & (PAGE_MASK << 1)) - return; - - show_trace((unsigned long *) sp); -} - -/* - * note the untimely death of part of the kernel - */ -void die(const char *str, struct pt_regs *regs, enum exception_code code) -{ - console_verbose(); - spin_lock_irq(&die_lock); - printk(KERN_EMERG "\n%s: %04x\n", - str, code & 0xffff); - show_registers(regs); - - if (regs->pc >= 0x02000000 && regs->pc < 0x04000000 && - (regs->epsw & (EPSW_IM | EPSW_IE)) != (EPSW_IM | EPSW_IE)) { - printk(KERN_EMERG "Exception in usermode interrupt handler\n"); - printk(KERN_EMERG "\nPlease connect to kernel debugger !!\n"); - asm volatile ("0: bra 0b"); - } - - spin_unlock_irq(&die_lock); - do_exit(SIGSEGV); -} - -/* - * display the register file when the stack pointer gets clobbered - */ -asmlinkage void do_double_fault(struct pt_regs *regs) -{ - struct task_struct *tsk = current; - - strcpy(tsk->comm, "emergency tsk"); - tsk->pid = 0; - console_verbose(); - printk(KERN_EMERG "--- double fault ---\n"); - show_registers(regs); -} - -/* - * asynchronous bus error (external, usually I/O DMA) - */ -asmlinkage void io_bus_error(u32 bcberr, u32 bcbear, struct pt_regs *regs) -{ - console_verbose(); - - printk(KERN_EMERG "Asynchronous I/O Bus Error\n"); - printk(KERN_EMERG "==========================\n"); - - if (bcberr & BCBERR_BEME) - printk(KERN_EMERG "- Multiple recorded errors\n"); - - printk(KERN_EMERG "- Faulting Buses:%s%s%s\n", - bcberr & BCBERR_BEMR_CI ? " CPU-Ins-Fetch" : "", - bcberr & BCBERR_BEMR_CD ? " CPU-Data" : "", - bcberr & BCBERR_BEMR_DMA ? " DMA" : ""); - - printk(KERN_EMERG "- %s %s access made to %s at address %08x\n", - bcberr & BCBERR_BEBST ? "Burst" : "Single", - bcberr & BCBERR_BERW ? "Read" : "Write", - bcberr & BCBERR_BESB_MON ? "Monitor Space" : - bcberr & BCBERR_BESB_IO ? "Internal CPU I/O Space" : - bcberr & BCBERR_BESB_EX ? "External I/O Bus" : - bcberr & BCBERR_BESB_OPEX ? "External Memory Bus" : - "On Chip Memory", - bcbear - ); - - printk(KERN_EMERG "- Detected by the %s\n", - bcberr&BCBERR_BESD ? "Bus Control Unit" : "Slave Bus"); - -#ifdef CONFIG_PCI -#define BRIDGEREGB(X) (*(volatile __u8 *)(0xBE040000 + (X))) -#define BRIDGEREGW(X) (*(volatile __u16 *)(0xBE040000 + (X))) -#define BRIDGEREGL(X) (*(volatile __u32 *)(0xBE040000 + (X))) - - printk(KERN_EMERG "- PCI Memory Paging Reg: %08x\n", - *(volatile __u32 *) (0xBFFFFFF4)); - printk(KERN_EMERG "- PCI Bridge Base Address 0: %08x\n", - BRIDGEREGL(PCI_BASE_ADDRESS_0)); - printk(KERN_EMERG "- PCI Bridge AMPCI Base Address: %08x\n", - BRIDGEREGL(0x48)); - printk(KERN_EMERG "- PCI Bridge Command: %04hx\n", - BRIDGEREGW(PCI_COMMAND)); - printk(KERN_EMERG "- PCI Bridge Status: %04hx\n", - BRIDGEREGW(PCI_STATUS)); - printk(KERN_EMERG "- PCI Bridge Int Status: %08hx\n", - BRIDGEREGL(0x4c)); -#endif - - printk(KERN_EMERG "\n"); - show_registers(regs); - - panic("Halted due to asynchronous I/O Bus Error\n"); -} - -/* - * handle an exception for which a handler has not yet been installed - */ -asmlinkage void uninitialised_exception(struct pt_regs *regs, - enum exception_code code) -{ - - /* see if gdbstub wants to deal with it */ - if (debugger_intercept(code, SIGSYS, 0, regs) == 0) - return; - - peripheral_leds_display_exception(code); - printk(KERN_EMERG "Uninitialised Exception 0x%04x\n", code & 0xFFFF); - show_registers(regs); - - for (;;) - continue; -} - -/* - * set an interrupt stub to jump to a handler - * ! NOTE: this does *not* flush the caches - */ -void __init __set_intr_stub(enum exception_code code, void *handler) -{ - unsigned long addr; - u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code); - - addr = (unsigned long) handler - (unsigned long) vector; - vector[0] = 0xdc; /* JMP handler */ - vector[1] = addr; - vector[2] = addr >> 8; - vector[3] = addr >> 16; - vector[4] = addr >> 24; - vector[5] = 0xcb; - vector[6] = 0xcb; - vector[7] = 0xcb; -} - -/* - * set an interrupt stub to jump to a handler - */ -void __init set_intr_stub(enum exception_code code, void *handler) -{ - unsigned long addr; - u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code); - unsigned long flags; - - addr = (unsigned long) handler - (unsigned long) vector; - - flags = arch_local_cli_save(); - - vector[0] = 0xdc; /* JMP handler */ - vector[1] = addr; - vector[2] = addr >> 8; - vector[3] = addr >> 16; - vector[4] = addr >> 24; - vector[5] = 0xcb; - vector[6] = 0xcb; - vector[7] = 0xcb; - - arch_local_irq_restore(flags); - -#ifndef CONFIG_MN10300_CACHE_SNOOP - mn10300_dcache_flush_inv(); - mn10300_icache_inv(); -#endif -} - -/* - * initialise the exception table - */ -void __init trap_init(void) -{ - set_excp_vector(EXCEP_TRAP, handle_exception); - set_excp_vector(EXCEP_ISTEP, handle_exception); - set_excp_vector(EXCEP_IBREAK, handle_exception); - set_excp_vector(EXCEP_OBREAK, handle_exception); - - set_excp_vector(EXCEP_PRIVINS, handle_exception); - set_excp_vector(EXCEP_UNIMPINS, handle_exception); - set_excp_vector(EXCEP_UNIMPEXINS, handle_exception); - set_excp_vector(EXCEP_MEMERR, handle_exception); - set_excp_vector(EXCEP_MISALIGN, misalignment); - set_excp_vector(EXCEP_BUSERROR, handle_exception); - set_excp_vector(EXCEP_ILLINSACC, handle_exception); - set_excp_vector(EXCEP_ILLDATACC, handle_exception); - set_excp_vector(EXCEP_IOINSACC, handle_exception); - set_excp_vector(EXCEP_PRIVINSACC, handle_exception); - set_excp_vector(EXCEP_PRIVDATACC, handle_exception); - set_excp_vector(EXCEP_DATINSACC, handle_exception); - set_excp_vector(EXCEP_FPU_UNIMPINS, handle_exception); - set_excp_vector(EXCEP_FPU_OPERATION, fpu_exception); - - set_excp_vector(EXCEP_NMI, nmi); - - set_excp_vector(EXCEP_SYSCALL1, handle_exception); - set_excp_vector(EXCEP_SYSCALL2, handle_exception); - set_excp_vector(EXCEP_SYSCALL3, handle_exception); - set_excp_vector(EXCEP_SYSCALL4, handle_exception); - set_excp_vector(EXCEP_SYSCALL5, handle_exception); - set_excp_vector(EXCEP_SYSCALL6, handle_exception); - set_excp_vector(EXCEP_SYSCALL7, handle_exception); - set_excp_vector(EXCEP_SYSCALL8, handle_exception); - set_excp_vector(EXCEP_SYSCALL9, handle_exception); - set_excp_vector(EXCEP_SYSCALL10, handle_exception); - set_excp_vector(EXCEP_SYSCALL11, handle_exception); - set_excp_vector(EXCEP_SYSCALL12, handle_exception); - set_excp_vector(EXCEP_SYSCALL13, handle_exception); - set_excp_vector(EXCEP_SYSCALL14, handle_exception); - set_excp_vector(EXCEP_SYSCALL15, handle_exception); -} - -/* - * determine if a program counter value is a valid bug address - */ -int is_valid_bugaddr(unsigned long pc) -{ - return pc >= PAGE_OFFSET; -} diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S deleted file mode 100644 index 2d5f1c3f1afb..000000000000 --- a/arch/mn10300/kernel/vmlinux.lds.S +++ /dev/null @@ -1,94 +0,0 @@ -/* MN10300 Main kernel linker script - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#define __VMLINUX_LDS__ -#include <asm-generic/vmlinux.lds.h> -#include <asm/thread_info.h> -#include <asm/page.h> - -OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin") -OUTPUT_ARCH(mn10300) -ENTRY(_start) -jiffies = jiffies_64; -#ifndef CONFIG_MN10300_CURRENT_IN_E2 -current = __current; -#endif -SECTIONS -{ - . = CONFIG_KERNEL_TEXT_ADDRESS; - /* read-only */ - _stext = .; - _text = .; /* Text and read-only data */ - .text : { - HEAD_TEXT - TEXT_TEXT - SCHED_TEXT - CPUIDLE_TEXT - LOCK_TEXT - KPROBES_TEXT - *(.fixup) - *(.gnu.warning) - } = 0xcb - - _etext = .; /* End of text section */ - - EXCEPTION_TABLE(16) - BUG_TABLE - - RO_DATA(PAGE_SIZE) - - /* writeable */ - _sdata = .; /* Start of rw data section */ - RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE) - _edata = .; - - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - __smp_locks = .; - *(.smp_locks) - __smp_locks_end = .; - } - - /* will be freed after init */ - . = ALIGN(PAGE_SIZE); /* Init code and data */ - __init_begin = .; - INIT_TEXT_SECTION(PAGE_SIZE) - INIT_DATA_SECTION(16) - . = ALIGN(4); - __alt_instructions = .; - .altinstructions : { *(.altinstructions) } - __alt_instructions_end = .; - .altinstr_replacement : { *(.altinstr_replacement) } - /* .exit.text is discard at runtime, not link time, to deal with references - from .altinstructions and .eh_frame */ - .exit.text : { EXIT_TEXT; } - .exit.data : { EXIT_DATA; } - - PERCPU_SECTION(32) - . = ALIGN(PAGE_SIZE); - __init_end = .; - /* freed after init ends here */ - - BSS_SECTION(0, PAGE_SIZE, 4) - - _end = . ; - - /* This is where the kernel creates the early boot page tables */ - . = ALIGN(PAGE_SIZE); - pg0 = .; - - STABS_DEBUG - - DWARF_DEBUG - - /* Sections to be discarded */ - DISCARDS -} diff --git a/arch/mn10300/lib/Makefile b/arch/mn10300/lib/Makefile deleted file mode 100644 index 0cd2346f4c13..000000000000 --- a/arch/mn10300/lib/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for the MN10300-specific library files.. -# - -lib-y = delay.o usercopy.o checksum.o bitops.o memcpy.o memmove.o memset.o -lib-y += do_csum.o -lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o __ucmpdi2.o diff --git a/arch/mn10300/lib/__ashldi3.S b/arch/mn10300/lib/__ashldi3.S deleted file mode 100644 index a51a9506f00c..000000000000 --- a/arch/mn10300/lib/__ashldi3.S +++ /dev/null @@ -1,51 +0,0 @@ -/* MN10300 64-bit arithmetic left shift - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# unsigned long long __ashldi3(unsigned long long value [D1:D0], -# unsigned by [(12,SP)]) -# -############################################################################### - .globl __ashldi3 - .type __ashldi3,@function -__ashldi3: - mov (12,sp),a0 - and +63,a0 - beq __ashldi3_zero - - cmp +31,a0 - bhi __ashldi3_32plus - - # the count is in the range 1-31 - asl a0,d1 - - mov +32,a1 - sub a0,a1,a1 # a1 = 32 - count - lsr a1,d0,a1 # get overflow from LSW -> MSW - - or_asl a1,d1,a0,d0 # insert overflow into MSW and - # shift the LSW - rets - - .balign L1_CACHE_BYTES - # the count is in the range 32-63 -__ashldi3_32plus: - asl a0,d0,d1 - clr d0 -__ashldi3_zero: - rets - - .size __ashldi3, .-__ashldi3 diff --git a/arch/mn10300/lib/__ashrdi3.S b/arch/mn10300/lib/__ashrdi3.S deleted file mode 100644 index 6f42382728cb..000000000000 --- a/arch/mn10300/lib/__ashrdi3.S +++ /dev/null @@ -1,52 +0,0 @@ -/* MN10300 64-bit arithmetic right shift - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# unsigned long long __ashrdi3(unsigned long long value [D1:D0], -# unsigned by [(12,SP)]) -# -############################################################################### - .globl __ashrdi3 - .type __ashrdi3,@function -__ashrdi3: - mov (12,sp),a0 - and +63,a0 - beq __ashrdi3_zero - - cmp +31,a0 - bhi __ashrdi3_32plus - - # the count is in the range 1-31 - lsr a0,d0 - - mov +32,a1 - sub a0,a1,a1 # a1 = 32 - count - asl a1,d1,a1 # get underflow from MSW -> LSW - - or_asr a1,d0,a0,d1 # insert underflow into LSW and - # shift the MSW - rets - - .balign L1_CACHE_BYTES - # the count is in the range 32-63 -__ashrdi3_32plus: - asr a0,d1,d0 - ext d0 # sign-extend result through MDR - mov mdr,d1 -__ashrdi3_zero: - rets - - .size __ashrdi3, .-__ashrdi3 diff --git a/arch/mn10300/lib/__lshrdi3.S b/arch/mn10300/lib/__lshrdi3.S deleted file mode 100644 index a686aef31e90..000000000000 --- a/arch/mn10300/lib/__lshrdi3.S +++ /dev/null @@ -1,52 +0,0 @@ -/* MN10300 64-bit logical right shift - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <asm/cache.h> - - .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# unsigned long long __lshrdi3(unsigned long long value [D1:D0], -# unsigned by [(12,SP)]) -# -############################################################################### - .globl __lshrdi3 - .type __lshrdi3,@function -__lshrdi3: - mov (12,sp),a0 - and +63,a0 - beq __lshrdi3_zero - - cmp +31,a0 - bhi __lshrdi3_32plus - - # the count is in the range 1-31 - lsr a0,d0 - - mov +32,a1 - sub a0,a1,a1 # a1 = 32 - count - asl a1,d1,a1 # get underflow from MSW -> LSW - - or_lsr a1,d0,a0,d1 # insert underflow into LSW and - # shift the MSW - rets - - .balign L1_CACHE_BYTES - # the count is in the range 32-63 -__lshrdi3_32plus: - lsr a0,d1,d0 - clr d1 -__lshrdi3_zero: - rets - - .size __lshrdi3, .-__lshrdi3 diff --git a/arch/mn10300/lib/__ucmpdi2.S b/arch/mn10300/lib/__ucmpdi2.S deleted file mode 100644 index 60dcbdfe386c..000000000000 --- a/arch/mn10300/lib/__ucmpdi2.S +++ /dev/null @@ -1,43 +0,0 @@ -/* __ucmpdi2.S: 64-bit unsigned compare - * - * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - - - .text - .p2align 4 - -############################################################################### -# -# int __ucmpdi2(unsigned long long a [D0:D1], -# unsigned long long b [(SP,12),(SP,16)]) -# -# - returns 0, 1, or 2 as a <, =, > b respectively. -# -############################################################################### - .globl __ucmpdi2 - .type __ucmpdi2,@function -__ucmpdi2: - mov (12,sp),a0 # b.lsw - mov (16,sp),a1 # b.msw - - sub a0,d0 - subc a1,d1 # may clear Z, never sets it - bne __ucmpdi2_differ # a.msw != b.msw - mov +1,d0 - rets - -__ucmpdi2_differ: - # C flag is set if LE, clear if GE - subc d0,d0 # -1 if LE, 0 if GE - add +1,d0 # 0 if LE, 1 if GE - add d0,d0 # 0 if LE, 2 if GE - rets - - .size __ucmpdi2, .-__ucmpdi2 diff --git a/arch/mn10300/lib/ashrdi3.c b/arch/mn10300/lib/ashrdi3.c deleted file mode 100644 index c54f61ddf0b5..000000000000 --- a/arch/mn10300/lib/ashrdi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public Licence as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public Licence for more details. - -You should have received a copy of the GNU General Public Licence -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__((mode(SI))); -typedef unsigned int USItype __attribute__((mode(SI))); -typedef int DItype __attribute__((mode(DI))); -typedef int word_type __attribute__((mode(__word__))); - -struct DIstruct { - SItype low; - SItype high; -}; - -union DIunion { - struct DIstruct s; - DItype ll; -}; - -DItype __ashrdi3(DItype u, word_type b) -{ - union DIunion w; - union DIunion uu; - word_type bm; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof(SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof(SItype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } else { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/mn10300/lib/bitops.c b/arch/mn10300/lib/bitops.c deleted file mode 100644 index 37309cdb7584..000000000000 --- a/arch/mn10300/lib/bitops.c +++ /dev/null @@ -1,50 +0,0 @@ -/* MN10300 Non-trivial bit operations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <asm/bitops.h> - -/* - * try flipping a bit using BSET and BCLR - */ -void change_bit(unsigned long nr, volatile void *addr) -{ - if (test_bit(nr, addr)) - goto try_clear_bit; - -try_set_bit: - if (!test_and_set_bit(nr, addr)) - return; - -try_clear_bit: - if (test_and_clear_bit(nr, addr)) - return; - - goto try_set_bit; -} - -/* - * try flipping a bit using BSET and BCLR and returning the old value - */ -int test_and_change_bit(unsigned long nr, volatile void *addr) -{ - if (test_bit(nr, addr)) - goto try_clear_bit; - -try_set_bit: - if (!test_and_set_bit(nr, addr)) - return 0; - -try_clear_bit: - if (test_and_clear_bit(nr, addr)) - return 1; - - goto try_set_bit; -} diff --git a/arch/mn10300/lib/checksum.c b/arch/mn10300/lib/checksum.c deleted file mode 100644 index 0f569151ef11..000000000000 --- a/arch/mn10300/lib/checksum.c +++ /dev/null @@ -1,100 +0,0 @@ -/* MN10300 Optimised checksumming wrappers - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/errno.h> -#include <asm/byteorder.h> -#include <linux/uaccess.h> -#include <asm/checksum.h> -#include "internal.h" - -static inline unsigned short from32to16(__wsum sum) -{ - asm(" add %1,%0 \n" - " addc 0xffff,%0 \n" - : "=r" (sum) - : "r" (sum << 16), "0" (sum & 0xffff0000) - : "cc" - ); - return sum >> 16; -} - -__sum16 ip_fast_csum(const void *iph, unsigned int ihl) -{ - return ~do_csum(iph, ihl * 4); -} -EXPORT_SYMBOL(ip_fast_csum); - -__wsum csum_partial(const void *buff, int len, __wsum sum) -{ - __wsum result; - - result = do_csum(buff, len); - result += sum; - if (sum > result) - result++; - return result; -} -EXPORT_SYMBOL(csum_partial); - -__sum16 ip_compute_csum(const void *buff, int len) -{ - return ~from32to16(do_csum(buff, len)); -} -EXPORT_SYMBOL(ip_compute_csum); - -__wsum csum_partial_copy(const void *src, void *dst, int len, __wsum sum) -{ - copy_from_user(dst, src, len); - return csum_partial(dst, len, sum); -} -EXPORT_SYMBOL(csum_partial_copy); - -__wsum csum_partial_copy_nocheck(const void *src, void *dst, - int len, __wsum sum) -{ - sum = csum_partial(src, len, sum); - memcpy(dst, src, len); - return sum; -} -EXPORT_SYMBOL(csum_partial_copy_nocheck); - -__wsum csum_partial_copy_from_user(const void *src, void *dst, - int len, __wsum sum, - int *err_ptr) -{ - int missing; - - missing = copy_from_user(dst, src, len); - if (missing) { - memset(dst + len - missing, 0, missing); - *err_ptr = -EFAULT; - } - - return csum_partial(dst, len, sum); -} -EXPORT_SYMBOL(csum_partial_copy_from_user); - -__wsum csum_and_copy_to_user(const void *src, void *dst, - int len, __wsum sum, - int *err_ptr) -{ - int missing; - - missing = copy_to_user(dst, src, len); - if (missing) { - memset(dst + len - missing, 0, missing); - *err_ptr = -EFAULT; - } - - return csum_partial(src, len, sum); -} -EXPORT_SYMBOL(csum_and_copy_to_user); diff --git a/arch/mn10300/lib/delay.c b/arch/mn10300/lib/delay.c deleted file mode 100644 index 8e7ceb8ba33d..000000000000 --- a/arch/mn10300/lib/delay.c +++ /dev/null @@ -1,51 +0,0 @@ -/* MN10300 Short delay interpolation routines - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <asm/div64.h> - -/* - * basic delay loop - */ -void __delay(unsigned long loops) -{ - int d0; - - asm volatile( - " bra 1f \n" - " .align 4 \n" - "1: bra 2f \n" - " .align 4 \n" - "2: add -1,%0 \n" - " bne 2b \n" - : "=&d" (d0) - : "0" (loops) - : "cc"); -} -EXPORT_SYMBOL(__delay); - -/* - * handle a delay specified in terms of microseconds - */ -void __udelay(unsigned long usecs) -{ - unsigned long start, stop, cnt; - - /* usecs * CLK / 1E6 */ - stop = __muldiv64u(usecs, MN10300_TSCCLK, 1000000); - start = TMTSCBC; - - do { - cnt = start - TMTSCBC; - } while (cnt < stop); -} -EXPORT_SYMBOL(__udelay); diff --git a/arch/mn10300/lib/do_csum.S b/arch/mn10300/lib/do_csum.S deleted file mode 100644 index 1d27bba0cd8f..000000000000 --- a/arch/mn10300/lib/do_csum.S +++ /dev/null @@ -1,157 +0,0 @@ -/* Optimised simple memory checksum - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .section .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# unsigned int do_csum(const unsigned char *buff, int len) -# -############################################################################### - .globl do_csum - .type do_csum,@function -do_csum: - movm [d2,d3],(sp) - mov d1,d2 # count - mov d0,a0 # buff - mov a0,a1 - clr d1 # accumulator - - cmp +0,d2 - ble do_csum_done # check for zero length or negative - - # 4-byte align the buffer pointer - btst +3,a0 - beq do_csum_now_4b_aligned - - btst +1,a0 - beq do_csum_addr_not_odd - movbu (a0),d0 - inc a0 - asl +8,d0 - add d0,d1 - add -1,d2 - -do_csum_addr_not_odd: - cmp +2,d2 - bcs do_csum_fewer_than_4 - btst +2,a0 - beq do_csum_now_4b_aligned - movhu (a0+),d0 - add d0,d1 - add -2,d2 - cmp +4,d2 - bcs do_csum_fewer_than_4 - -do_csum_now_4b_aligned: - # we want to checksum as much as we can in chunks of 32 bytes - cmp +31,d2 - bls do_csum_remainder # 4-byte aligned remainder - - add -32,d2 - mov +32,d3 - -do_csum_loop: - mov (a0+),d0 - mov (a0+),e0 - mov (a0+),e1 - mov (a0+),e3 - add d0,d1 - addc e0,d1 - addc e1,d1 - addc e3,d1 - mov (a0+),d0 - mov (a0+),e0 - mov (a0+),e1 - mov (a0+),e3 - addc d0,d1 - addc e0,d1 - addc e1,d1 - addc e3,d1 - addc +0,d1 - - sub d3,d2 - bcc do_csum_loop - - add d3,d2 - beq do_csum_done - -do_csum_remainder: - # cut 16-31 bytes down to 0-15 - cmp +16,d2 - bcs do_csum_fewer_than_16 - mov (a0+),d0 - mov (a0+),e0 - mov (a0+),e1 - mov (a0+),e3 - add d0,d1 - addc e0,d1 - addc e1,d1 - addc e3,d1 - addc +0,d1 - add -16,d2 - beq do_csum_done - -do_csum_fewer_than_16: - # copy the remaining whole words - cmp +4,d2 - bcs do_csum_fewer_than_4 - cmp +8,d2 - bcs do_csum_one_word - cmp +12,d2 - bcs do_csum_two_words - mov (a0+),d0 - add d0,d1 - addc +0,d1 -do_csum_two_words: - mov (a0+),d0 - add d0,d1 - addc +0,d1 -do_csum_one_word: - mov (a0+),d0 - add d0,d1 - addc +0,d1 - -do_csum_fewer_than_4: - and +3,d2 - beq do_csum_done - xor_cmp d0,d0,+2,d2 - bcs do_csum_fewer_than_2 - movhu (a0+),d0 - and +1,d2 - beq do_csum_add_last_bit -do_csum_fewer_than_2: - movbu (a0),d3 - add d3,d0 -do_csum_add_last_bit: - add d0,d1 - addc +0,d1 - -do_csum_done: - # compress the checksum down to 16 bits - mov +0xffff0000,d0 - and d1,d0 - asl +16,d1 - add d1,d0 - addc +0xffff,d0 - lsr +16,d0 - - # flip the halves of the word result if the buffer was oddly aligned - and +1,a1 - beq do_csum_not_oddly_aligned - swaph d0,d0 # exchange bits 15:8 with 7:0 - -do_csum_not_oddly_aligned: - ret [d2,d3],8 - - .size do_csum, .-do_csum diff --git a/arch/mn10300/lib/internal.h b/arch/mn10300/lib/internal.h deleted file mode 100644 index 0014eee5f04f..000000000000 --- a/arch/mn10300/lib/internal.h +++ /dev/null @@ -1,15 +0,0 @@ -/* Internal definitions for the arch part of the kernel library - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -/* - * do_csum.S - */ -extern unsigned int do_csum(const unsigned char *, size_t); diff --git a/arch/mn10300/lib/lshrdi3.c b/arch/mn10300/lib/lshrdi3.c deleted file mode 100644 index e05e64e9ce96..000000000000 --- a/arch/mn10300/lib/lshrdi3.c +++ /dev/null @@ -1,60 +0,0 @@ -/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public Licence as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public Licence for more details. - -You should have received a copy of the GNU General Public Licence -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__((mode(SI))); -typedef unsigned int USItype __attribute__((mode(SI))); -typedef int DItype __attribute__((mode(DI))); -typedef int word_type __attribute__((mode(__word__))); - -struct DIstruct { - SItype low; - SItype high; -}; - -union DIunion { - struct DIstruct s; - DItype ll; -}; - -DItype __lshrdi3(DItype u, word_type b) -{ - union DIunion w; - word_type bm; - union DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof(SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) { - w.s.high = 0; - w.s.low = (USItype) uu.s.high >> -bm; - } else { - USItype carries = (USItype) uu.s.high << bm; - w.s.high = (USItype) uu.s.high >> b; - w.s.low = ((USItype) uu.s.low >> b) | carries; - } - - return w.ll; -} diff --git a/arch/mn10300/lib/memcpy.S b/arch/mn10300/lib/memcpy.S deleted file mode 100644 index 25fb9bb2604f..000000000000 --- a/arch/mn10300/lib/memcpy.S +++ /dev/null @@ -1,135 +0,0 @@ -/* MN10300 Optimised simple memory to memory copy - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .section .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# void *memcpy(void *dst, const void *src, size_t n) -# -############################################################################### - .globl memcpy - .type memcpy,@function -memcpy: - movm [d2,d3],(sp) - mov d0,(12,sp) - mov d1,(16,sp) - mov (20,sp),d2 # count - mov d0,a0 # dst - mov d1,a1 # src - mov d0,e3 # the return value - - cmp +0,d2 - beq memcpy_done # return if zero-length copy - - # see if the three parameters are all four-byte aligned - or d0,d1,d3 - or d2,d3 - and +3,d3 - bne memcpy_1 # jump if not - - # we want to transfer as much as we can in chunks of 32 bytes - cmp +31,d2 - bls memcpy_4_remainder # 4-byte aligned remainder - - movm [exreg1],(sp) - add -32,d2 - mov +32,d3 - -memcpy_4_loop: - mov (a1+),d0 - mov (a1+),d1 - mov (a1+),e0 - mov (a1+),e1 - mov (a1+),e4 - mov (a1+),e5 - mov (a1+),e6 - mov (a1+),e7 - mov d0,(a0+) - mov d1,(a0+) - mov e0,(a0+) - mov e1,(a0+) - mov e4,(a0+) - mov e5,(a0+) - mov e6,(a0+) - mov e7,(a0+) - - sub d3,d2 - bcc memcpy_4_loop - - movm (sp),[exreg1] - add d3,d2 - beq memcpy_4_no_remainder - -memcpy_4_remainder: - # cut 4-7 words down to 0-3 - cmp +16,d2 - bcs memcpy_4_three_or_fewer_words - mov (a1+),d0 - mov (a1+),d1 - mov (a1+),e0 - mov (a1+),e1 - mov d0,(a0+) - mov d1,(a0+) - mov e0,(a0+) - mov e1,(a0+) - add -16,d2 - beq memcpy_4_no_remainder - - # copy the remaining 1, 2 or 3 words -memcpy_4_three_or_fewer_words: - cmp +8,d2 - bcs memcpy_4_one_word - beq memcpy_4_two_words - mov (a1+),d0 - mov d0,(a0+) -memcpy_4_two_words: - mov (a1+),d0 - mov d0,(a0+) -memcpy_4_one_word: - mov (a1+),d0 - mov d0,(a0+) - -memcpy_4_no_remainder: - # check we copied the correct amount - # TODO: REMOVE CHECK - sub e3,a0,d2 - mov (20,sp),d1 - cmp d2,d1 - beq memcpy_done - break - break - break - -memcpy_done: - mov e3,a0 - ret [d2,d3],8 - - # handle misaligned copying -memcpy_1: - add -1,d2 - mov +1,d3 - setlb # setlb requires the next insns - # to occupy exactly 4 bytes - - sub d3,d2 - movbu (a1),d0 - movbu d0,(a0) - add_add d3,a1,d3,a0 - lcc - - mov e3,a0 - ret [d2,d3],8 - -memcpy_end: - .size memcpy, memcpy_end-memcpy diff --git a/arch/mn10300/lib/memmove.S b/arch/mn10300/lib/memmove.S deleted file mode 100644 index 20b07b62b77c..000000000000 --- a/arch/mn10300/lib/memmove.S +++ /dev/null @@ -1,160 +0,0 @@ -/* MN10300 Optimised simple memory to memory copy, with support for overlapping - * regions - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .section .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# void *memmove(void *dst, const void *src, size_t n) -# -############################################################################### - .globl memmove - .type memmove,@function -memmove: - # fall back to memcpy if dst < src to work bottom up - cmp d1,d0 - bcs memmove_memcpy - - # work top down - movm [d2,d3],(sp) - mov d0,(12,sp) - mov d1,(16,sp) - mov (20,sp),d2 # count - add d0,d2,a0 # dst end - add d1,d2,a1 # src end - mov d0,e3 # the return value - - cmp +0,d2 - beq memmove_done # return if zero-length copy - - # see if the three parameters are all four-byte aligned - or d0,d1,d3 - or d2,d3 - and +3,d3 - bne memmove_1 # jump if not - - # we want to transfer as much as we can in chunks of 32 bytes - add -4,a1 - cmp +31,d2 - bls memmove_4_remainder # 4-byte aligned remainder - - add -32,d2 - mov +32,d3 - -memmove_4_loop: - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - mov (a1),d1 - sub_sub +4,a1,+4,a0 - mov d1,(a0) - - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - mov (a1),d1 - sub_sub +4,a1,+4,a0 - mov d1,(a0) - - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - mov (a1),d1 - sub_sub +4,a1,+4,a0 - mov d1,(a0) - - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - mov (a1),d1 - sub_sub +4,a1,+4,a0 - mov d1,(a0) - - sub d3,d2 - bcc memmove_4_loop - - add d3,d2 - beq memmove_4_no_remainder - -memmove_4_remainder: - # cut 4-7 words down to 0-3 - cmp +16,d2 - bcs memmove_4_three_or_fewer_words - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - mov (a1),d1 - sub_sub +4,a1,+4,a0 - mov d1,(a0) - mov (a1),e0 - sub_sub +4,a1,+4,a0 - mov e0,(a0) - mov (a1),e1 - sub_sub +4,a1,+4,a0 - mov e1,(a0) - add -16,d2 - beq memmove_4_no_remainder - - # copy the remaining 1, 2 or 3 words -memmove_4_three_or_fewer_words: - cmp +8,d2 - bcs memmove_4_one_word - beq memmove_4_two_words - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) -memmove_4_two_words: - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) -memmove_4_one_word: - mov (a1),d0 - sub_sub +4,a1,+4,a0 - mov d0,(a0) - -memmove_4_no_remainder: - # check we copied the correct amount - # TODO: REMOVE CHECK - sub e3,a0,d2 - beq memmove_done - break - break - break - -memmove_done: - mov e3,a0 - ret [d2,d3],8 - - # handle misaligned copying -memmove_1: - add -1,a1 - add -1,d2 - mov +1,d3 - setlb # setlb requires the next insns - # to occupy exactly 4 bytes - - sub d3,d2 - movbu (a1),d0 - sub_sub d3,a1,d3,a0 - movbu d0,(a0) - lcc - - mov e3,a0 - ret [d2,d3],8 - -memmove_memcpy: - jmp memcpy - -memmove_end: - .size memmove, memmove_end-memmove diff --git a/arch/mn10300/lib/memset.S b/arch/mn10300/lib/memset.S deleted file mode 100644 index bc02e39629b7..000000000000 --- a/arch/mn10300/lib/memset.S +++ /dev/null @@ -1,121 +0,0 @@ -/* Optimised simple memory fill - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <asm/cache.h> - - .section .text - .balign L1_CACHE_BYTES - -############################################################################### -# -# void *memset(void *dst, int c, size_t n) -# -############################################################################### - .globl memset - .type memset,@function -memset: - movm [d2,d3],(sp) - mov d0,(12,sp) - mov d1,(16,sp) - mov (20,sp),d2 # count - mov d0,a0 # dst - mov d0,e3 # the return value - - cmp +0,d2 - beq memset_done # return if zero-length fill - - # see if the region parameters are four-byte aligned - or d0,d2,d3 - and +3,d3 - bne memset_1 # jump if not - - extbu d1 - mov_asl d1,d3,8,d1 - or_asl d1,d3,8,d1 - or_asl d1,d3,8,d1 - or d3,d1 - - # we want to transfer as much as we can in chunks of 32 bytes - cmp +31,d2 - bls memset_4_remainder # 4-byte aligned remainder - - add -32,d2 - mov +32,d3 - -memset_4_loop: - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - - sub d3,d2 - bcc memset_4_loop - - add d3,d2 - beq memset_4_no_remainder - -memset_4_remainder: - # cut 4-7 words down to 0-3 - cmp +16,d2 - bcs memset_4_three_or_fewer_words - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - mov d1,(a0+) - add -16,d2 - beq memset_4_no_remainder - - # copy the remaining 1, 2 or 3 words -memset_4_three_or_fewer_words: - cmp +8,d2 - bcs memset_4_one_word - beq memset_4_two_words - mov d1,(a0+) -memset_4_two_words: - mov d1,(a0+) -memset_4_one_word: - mov d1,(a0+) - -memset_4_no_remainder: - # check we set the correct amount - # TODO: REMOVE CHECK - sub e3,a0,d2 - mov (20,sp),d1 - cmp d2,d1 - beq memset_done - break - break - break - -memset_done: - mov e3,a0 - ret [d2,d3],8 - - # handle misaligned copying -memset_1: - add -1,d2 - mov +1,d3 - setlb # setlb requires the next insns - # to occupy exactly 4 bytes - - sub d3,d2 - movbu d1,(a0) - inc a0 - lcc - - mov e3,a0 - ret [d2,d3],8 - -memset_end: - .size memset, memset_end-memset diff --git a/arch/mn10300/lib/negdi2.c b/arch/mn10300/lib/negdi2.c deleted file mode 100644 index eae4ecdd5f69..000000000000 --- a/arch/mn10300/lib/negdi2.c +++ /dev/null @@ -1,57 +0,0 @@ -/* More subroutines needed by GCC output code on some machines. */ -/* Compile this one with gcc. */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public Licence as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -In addition to the permissions in the GNU General Public Licence, the -Free Software Foundation gives you unlimited permission to link the -compiled version of this file into combinations with other programs, -and to distribute those combinations without any restriction coming -from the use of this file. (The General Public Licence restrictions -do apply in other respects; for example, they cover modification of -the file, and distribution when not linked into a combine -executable.) - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public Licence for more details. - -You should have received a copy of the GNU General Public Licence -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* It is incorrect to include config.h here, because this file is being - compiled for the target, and hence definitions concerning only the host - do not apply. */ - -#include <linux/types.h> - -union DWunion { - s64 ll; - struct { - s32 low; - s32 high; - } s; -}; - -s64 __negdi2(s64 u) -{ - union DWunion w; - union DWunion uu; - - uu.ll = u; - - w.s.low = -uu.s.low; - w.s.high = -uu.s.high - ((u32) w.s.low > 0); - - return w.ll; -} diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c deleted file mode 100644 index 39626912de98..000000000000 --- a/arch/mn10300/lib/usercopy.c +++ /dev/null @@ -1,142 +0,0 @@ -/* MN10300 Userspace accessor functions - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/uaccess.h> - -/* - * Copy a null terminated string from userspace. - */ -#define __do_strncpy_from_user(dst, src, count, res) \ -do { \ - int w; \ - asm volatile( \ - " mov %1,%0\n" \ - " cmp 0,%1\n" \ - " beq 2f\n" \ - "0:\n" \ - " movbu (%5),%2\n" \ - "1:\n" \ - " movbu %2,(%6)\n" \ - " inc %5\n" \ - " inc %6\n" \ - " cmp 0,%2\n" \ - " beq 2f\n" \ - " add -1,%1\n" \ - " bne 0b\n" \ - "2:\n" \ - " sub %1,%0\n" \ - "3:\n" \ - " .section .fixup,\"ax\"\n" \ - "4:\n" \ - " mov %3,%0\n" \ - " jmp 3b\n" \ - " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .balign 4\n" \ - " .long 0b,4b\n" \ - " .long 1b,4b\n" \ - " .previous" \ - :"=&r"(res), "=r"(count), "=&r"(w) \ - :"i"(-EFAULT), "1"(count), "a"(src), "a"(dst) \ - : "memory", "cc"); \ -} while (0) - -long -strncpy_from_user(char *dst, const char *src, long count) -{ - long res = -EFAULT; - if (access_ok(VERIFY_READ, src, 1)) - __do_strncpy_from_user(dst, src, count, res); - return res; -} - - -/* - * Clear a userspace memory - */ -#define __do_clear_user(addr, size) \ -do { \ - int w; \ - asm volatile( \ - " cmp 0,%0\n" \ - " beq 1f\n" \ - " clr %1\n" \ - "0: movbu %1,(%3,%2)\n" \ - " inc %3\n" \ - " cmp %0,%3\n" \ - " bne 0b\n" \ - "1:\n" \ - " sub %3,%0\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: jmp 2b\n" \ - ".previous\n" \ - ".section __ex_table,\"a\"\n" \ - " .balign 4\n" \ - " .long 0b,3b\n" \ - ".previous\n" \ - : "+r"(size), "=&r"(w) \ - : "a"(addr), "d"(0) \ - : "memory", "cc"); \ -} while (0) - -unsigned long -__clear_user(void *to, unsigned long n) -{ - __do_clear_user(to, n); - return n; -} - -unsigned long -clear_user(void *to, unsigned long n) -{ - if (access_ok(VERIFY_WRITE, to, n)) - __do_clear_user(to, n); - return n; -} - -/* - * Return the size of a string (including the ending 0) - * - * Return 0 on exception, a value greater than N if too long - */ -long strnlen_user(const char *s, long n) -{ - unsigned long res, w; - - if (!__addr_ok(s)) - return 0; - - if (n < 0 || n + (u_long) s > current_thread_info()->addr_limit.seg) - n = current_thread_info()->addr_limit.seg - (u_long)s; - - asm volatile( - "0: cmp %4,%0\n" - " beq 2f\n" - "1: movbu (%0,%3),%1\n" - " inc %0\n" - " cmp 0,%1\n" - " beq 3f\n" - " bra 0b\n" - "2: clr %0\n" - "3:\n" - ".section .fixup,\"ax\"\n" - "4: jmp 2b\n" - ".previous\n" - ".section __ex_table,\"a\"\n" - " .balign 4\n" - " .long 1b,4b\n" - ".previous\n" - :"=d"(res), "=&r"(w) - :"0"(0), "a"(s), "r"(n) - : "memory", "cc"); - return res; -} diff --git a/arch/mn10300/mm/Kconfig.cache b/arch/mn10300/mm/Kconfig.cache deleted file mode 100644 index 8cc5d9ec3b6c..000000000000 --- a/arch/mn10300/mm/Kconfig.cache +++ /dev/null @@ -1,148 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# MN10300 CPU cache options -# - -choice - prompt "CPU Caching mode" - default MN10300_CACHE_WBACK - help - This option determines the caching mode for the kernel. - - Write-Back caching mode involves the all reads and writes causing - the affected cacheline to be read into the cache first before being - operated upon. Memory is not then updated by a write until the cache - is filled and a cacheline needs to be displaced from the cache to - make room. Only at that point is it written back. - - Write-Through caching only fetches cachelines from memory on a - read. Writes always get written directly to memory. If the affected - cacheline is also in cache, it will be updated too. - - The final option is to turn of caching entirely. - -config MN10300_CACHE_WBACK - bool "Write-Back" - help - The dcache operates in delayed write-back mode. It must be manually - flushed if writes are made that subsequently need to be executed or - to be DMA'd by a device. - -config MN10300_CACHE_WTHRU - bool "Write-Through" - help - The dcache operates in immediate write-through mode. Writes are - committed to RAM immediately in addition to being stored in the - cache. This means that the written data is immediately available for - execution or DMA. - - This is not available for use with an SMP kernel if cache flushing - and invalidation by automatic purge register is not selected. - -config MN10300_CACHE_DISABLED - bool "Disabled" - help - The icache and dcache are disabled. - -endchoice - -config MN10300_CACHE_ENABLED - def_bool y if !MN10300_CACHE_DISABLED - - -choice - prompt "CPU cache flush/invalidate method" - default MN10300_CACHE_MANAGE_BY_TAG if !AM34_2 - default MN10300_CACHE_MANAGE_BY_REG if AM34_2 - depends on MN10300_CACHE_ENABLED - help - This determines the method by which CPU cache flushing and - invalidation is performed. - -config MN10300_CACHE_MANAGE_BY_TAG - bool "Use the cache tag registers directly" - depends on !(SMP && MN10300_CACHE_WTHRU) - -config MN10300_CACHE_MANAGE_BY_REG - bool "Flush areas by way of automatic purge registers (AM34 only)" - depends on AM34_2 - -endchoice - -config MN10300_CACHE_INV_BY_TAG - def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_ENABLED - -config MN10300_CACHE_INV_BY_REG - def_bool y if MN10300_CACHE_MANAGE_BY_REG && MN10300_CACHE_ENABLED - -config MN10300_CACHE_FLUSH_BY_TAG - def_bool y if MN10300_CACHE_MANAGE_BY_TAG && MN10300_CACHE_WBACK - -config MN10300_CACHE_FLUSH_BY_REG - def_bool y if MN10300_CACHE_MANAGE_BY_REG && MN10300_CACHE_WBACK - - -config MN10300_HAS_CACHE_SNOOP - def_bool n - -config MN10300_CACHE_SNOOP - bool "Use CPU Cache Snooping" - depends on MN10300_CACHE_ENABLED && MN10300_HAS_CACHE_SNOOP - default y - -config MN10300_CACHE_FLUSH_ICACHE - def_bool y if MN10300_CACHE_WBACK && !MN10300_CACHE_SNOOP - help - Set if we need the dcache flushing before the icache is invalidated. - -config MN10300_CACHE_INV_ICACHE - def_bool y if MN10300_CACHE_WTHRU && !MN10300_CACHE_SNOOP - help - Set if we need the icache to be invalidated, even if the dcache is in - write-through mode and doesn't need flushing. - -# -# The kernel debugger gets its own separate cache flushing functions -# -config MN10300_DEBUGGER_CACHE_FLUSH_BY_TAG - def_bool y if KERNEL_DEBUGGER && \ - MN10300_CACHE_WBACK && \ - !MN10300_CACHE_SNOOP && \ - MN10300_CACHE_MANAGE_BY_TAG - help - Set if the debugger needs to flush the dcache and invalidate the - icache using the cache tag registers to make breakpoints work. - -config MN10300_DEBUGGER_CACHE_FLUSH_BY_REG - def_bool y if KERNEL_DEBUGGER && \ - MN10300_CACHE_WBACK && \ - !MN10300_CACHE_SNOOP && \ - MN10300_CACHE_MANAGE_BY_REG - help - Set if the debugger needs to flush the dcache and invalidate the - icache using automatic purge registers to make breakpoints work. - -config MN10300_DEBUGGER_CACHE_INV_BY_TAG - def_bool y if KERNEL_DEBUGGER && \ - MN10300_CACHE_WTHRU && \ - !MN10300_CACHE_SNOOP && \ - MN10300_CACHE_MANAGE_BY_TAG - help - Set if the debugger needs to invalidate the icache using the cache - tag registers to make breakpoints work. - -config MN10300_DEBUGGER_CACHE_INV_BY_REG - def_bool y if KERNEL_DEBUGGER && \ - MN10300_CACHE_WTHRU && \ - !MN10300_CACHE_SNOOP && \ - MN10300_CACHE_MANAGE_BY_REG - help - Set if the debugger needs to invalidate the icache using automatic - purge registers to make breakpoints work. - -config MN10300_DEBUGGER_CACHE_NO_FLUSH - def_bool y if KERNEL_DEBUGGER && \ - (MN10300_CACHE_DISABLED || MN10300_CACHE_SNOOP) - help - Set if the debugger does not need to flush the dcache and/or - invalidate the icache to make breakpoints work. diff --git a/arch/mn10300/mm/Makefile b/arch/mn10300/mm/Makefile deleted file mode 100644 index 048ba6f67f9a..000000000000 --- a/arch/mn10300/mm/Makefile +++ /dev/null @@ -1,32 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Makefile for the MN10300-specific memory management code -# - -cache-smp-wback-$(CONFIG_MN10300_CACHE_WBACK) := cache-smp-flush.o - -cacheflush-y := cache.o -cacheflush-$(CONFIG_SMP) += cache-smp.o cache-smp-inv.o $(cache-smp-wback-y) -cacheflush-$(CONFIG_MN10300_CACHE_INV_ICACHE) += cache-inv-icache.o -cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_ICACHE) += cache-flush-icache.o -cacheflush-$(CONFIG_MN10300_CACHE_INV_BY_TAG) += cache-inv-by-tag.o -cacheflush-$(CONFIG_MN10300_CACHE_INV_BY_REG) += cache-inv-by-reg.o -cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_BY_TAG) += cache-flush-by-tag.o -cacheflush-$(CONFIG_MN10300_CACHE_FLUSH_BY_REG) += cache-flush-by-reg.o - -cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_FLUSH_BY_TAG) += \ - cache-dbg-flush-by-tag.o cache-dbg-inv-by-tag.o -cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_FLUSH_BY_REG) += \ - cache-dbg-flush-by-reg.o -cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_TAG) += \ - cache-dbg-inv-by-tag.o cache-dbg-inv.o -cacheflush-$(CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_REG) += \ - cache-dbg-inv-by-reg.o cache-dbg-inv.o - -cacheflush-$(CONFIG_MN10300_CACHE_DISABLED) := cache-disabled.o - -obj-y := \ - init.o fault.o pgtable.o extable.o tlb-mn10300.o mmu-context.o \ - misalignment.o dma-alloc.o $(cacheflush-y) - -obj-$(CONFIG_SMP) += tlb-smp.o diff --git a/arch/mn10300/mm/cache-dbg-flush-by-reg.S b/arch/mn10300/mm/cache-dbg-flush-by-reg.S deleted file mode 100644 index a775ea5d7cee..000000000000 --- a/arch/mn10300/mm/cache-dbg-flush-by-reg.S +++ /dev/null @@ -1,160 +0,0 @@ -/* MN10300 CPU cache invalidation routines, using automatic purge registers - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - - .am33_2 - -############################################################################### -# -# void debugger_local_cache_flushinv(void) -# Flush the entire data cache back to RAM and invalidate the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv - .type debugger_local_cache_flushinv,@function -debugger_local_cache_flushinv: - # - # firstly flush the dcache - # - movhu (CHCTR),d0 - btst CHCTR_DCEN|CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_end - - mov DCPGCR,a0 - - mov epsw,d1 - and ~EPSW_IE,epsw - or EPSW_NMID,epsw - nop - - btst CHCTR_DCEN,d0 - beq debugger_local_cache_flushinv_no_dcache - - # wait for busy bit of area purge - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - # set mask - clr d0 - mov d0,(DCPGMR) - - # area purge - # - # DCPGCR = DCPGCR_DCP - # - mov DCPGCR_DCP,d0 - mov d0,(a0) - - # wait for busy bit of area purge - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - -debugger_local_cache_flushinv_no_dcache: - # - # secondly, invalidate the icache if it is enabled - # - mov CHCTR,a0 - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_done - - invalidate_icache 0 - -debugger_local_cache_flushinv_done: - mov d1,epsw - -debugger_local_cache_flushinv_end: - ret [],0 - .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv - -############################################################################### -# -# void debugger_local_cache_flushinv_one(u8 *addr) -# -# Invalidate one particular cacheline if it's in the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv_one - .type debugger_local_cache_flushinv_one,@function -debugger_local_cache_flushinv_one: - movhu (CHCTR),d1 - btst CHCTR_DCEN|CHCTR_ICEN,d1 - beq debugger_local_cache_flushinv_one_end - btst CHCTR_DCEN,d1 - beq debugger_local_cache_flushinv_one_no_dcache - - # round cacheline addr down - and L1_CACHE_TAG_MASK,d0 - mov d0,a1 - mov d0,d1 - - # determine the dcache purge control reg address - mov DCACHE_PURGE(0,0),a0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 - - # retain valid entries in the cache - or L1_CACHE_TAG_VALID,d1 - - # conditionally purge this line in all ways - mov d1,(L1_CACHE_WAYDISP*0,a0) - -debugger_local_cache_flushinv_one_no_dcache: - # - # now try to flush the icache - # - mov CHCTR,a0 - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_one_end - - LOCAL_CLI_SAVE(d1) - - mov ICIVCR,a0 - - # wait for the invalidator to quiesce - setlb - mov (a0),d0 - btst ICIVCR_ICIVBSY,d0 - lne - - # set the mask - mov L1_CACHE_TAG_MASK,d0 - mov d0,(ICIVMR) - - # invalidate the cache line at the given address - or ICIVCR_ICI,a1 - mov a1,(a0) - - # wait for the invalidator to quiesce again - setlb - mov (a0),d0 - btst ICIVCR_ICIVBSY,d0 - lne - - LOCAL_IRQ_RESTORE(d1) - -debugger_local_cache_flushinv_one_end: - ret [],0 - .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one diff --git a/arch/mn10300/mm/cache-dbg-flush-by-tag.S b/arch/mn10300/mm/cache-dbg-flush-by-tag.S deleted file mode 100644 index bf56930e6e70..000000000000 --- a/arch/mn10300/mm/cache-dbg-flush-by-tag.S +++ /dev/null @@ -1,114 +0,0 @@ -/* MN10300 CPU cache invalidation routines, using direct tag flushing - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - - .am33_2 - -############################################################################### -# -# void debugger_local_cache_flushinv(void) -# -# Flush the entire data cache back to RAM and invalidate the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv - .type debugger_local_cache_flushinv,@function -debugger_local_cache_flushinv: - # - # firstly flush the dcache - # - movhu (CHCTR),d0 - btst CHCTR_DCEN|CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_end - - btst CHCTR_DCEN,d0 - beq debugger_local_cache_flushinv_no_dcache - - # read the addresses tagged in the cache's tag RAM and attempt to flush - # those addresses specifically - # - we rely on the hardware to filter out invalid tag entry addresses - mov DCACHE_TAG(0,0),a0 # dcache tag RAM access address - mov DCACHE_PURGE(0,0),a1 # dcache purge request address - mov L1_CACHE_NWAYS*L1_CACHE_NENTRIES,e0 # total number of entries - -mn10300_local_dcache_flush_loop: - mov (a0),d0 - and L1_CACHE_TAG_MASK,d0 - or L1_CACHE_TAG_VALID,d0 # retain valid entries in the - # cache - mov d0,(a1) # conditional purge - - add L1_CACHE_BYTES,a0 - add L1_CACHE_BYTES,a1 - add -1,e0 - bne mn10300_local_dcache_flush_loop - -debugger_local_cache_flushinv_no_dcache: - # - # secondly, invalidate the icache if it is enabled - # - mov CHCTR,a0 - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_end - - invalidate_icache 1 - -debugger_local_cache_flushinv_end: - ret [],0 - .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv - -############################################################################### -# -# void debugger_local_cache_flushinv_one(u8 *addr) -# -# Invalidate one particular cacheline if it's in the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv_one - .type debugger_local_cache_flushinv_one,@function -debugger_local_cache_flushinv_one: - movhu (CHCTR),d1 - btst CHCTR_DCEN|CHCTR_ICEN,d1 - beq debugger_local_cache_flushinv_one_end - btst CHCTR_DCEN,d1 - beq debugger_local_cache_flushinv_one_icache - - # round cacheline addr down - and L1_CACHE_TAG_MASK,d0 - mov d0,a1 - - # determine the dcache purge control reg address - mov DCACHE_PURGE(0,0),a0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 - - # retain valid entries in the cache - or L1_CACHE_TAG_VALID,a1 - - # conditionally purge this line in all ways - mov a1,(L1_CACHE_WAYDISP*0,a0) - - # now go and do the icache - bra debugger_local_cache_flushinv_one_icache - -debugger_local_cache_flushinv_one_end: - ret [],0 - .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one diff --git a/arch/mn10300/mm/cache-dbg-inv-by-reg.S b/arch/mn10300/mm/cache-dbg-inv-by-reg.S deleted file mode 100644 index c4e6252941b1..000000000000 --- a/arch/mn10300/mm/cache-dbg-inv-by-reg.S +++ /dev/null @@ -1,69 +0,0 @@ -/* MN10300 CPU cache invalidation routines, using automatic purge registers - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - - .am33_2 - - .globl debugger_local_cache_flushinv_one - -############################################################################### -# -# void debugger_local_cache_flushinv_one(u8 *addr) -# -# Invalidate one particular cacheline if it's in the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv_one - .type debugger_local_cache_flushinv_one,@function -debugger_local_cache_flushinv_one: - mov d0,a1 - - mov CHCTR,a0 - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq mn10300_local_icache_inv_range_reg_end - - LOCAL_CLI_SAVE(d1) - - mov ICIVCR,a0 - - # wait for the invalidator to quiesce - setlb - mov (a0),d0 - btst ICIVCR_ICIVBSY,d0 - lne - - # set the mask - mov ~L1_CACHE_TAG_MASK,d0 - mov d0,(ICIVMR) - - # invalidate the cache line at the given address - and ~L1_CACHE_TAG_MASK,a1 - or ICIVCR_ICI,a1 - mov a1,(a0) - - # wait for the invalidator to quiesce again - setlb - mov (a0),d0 - btst ICIVCR_ICIVBSY,d0 - lne - - LOCAL_IRQ_RESTORE(d1) - -mn10300_local_icache_inv_range_reg_end: - ret [],0 - .size debugger_local_cache_flushinv_one,.-debugger_local_cache_flushinv_one diff --git a/arch/mn10300/mm/cache-dbg-inv-by-tag.S b/arch/mn10300/mm/cache-dbg-inv-by-tag.S deleted file mode 100644 index d8ec821e5f88..000000000000 --- a/arch/mn10300/mm/cache-dbg-inv-by-tag.S +++ /dev/null @@ -1,120 +0,0 @@ -/* MN10300 CPU cache invalidation routines, using direct tag flushing - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - - .am33_2 - - .globl debugger_local_cache_flushinv_one_icache - -############################################################################### -# -# void debugger_local_cache_flushinv_one(u8 *addr) -# -# Invalidate one particular cacheline if it's in the icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv_one_icache - .type debugger_local_cache_flushinv_one_icache,@function -debugger_local_cache_flushinv_one_icache: - movm [d3,a2],(sp) - - mov CHCTR,a2 - movhu (a2),d0 - btst CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_one_icache_end - - mov d0,a1 - and L1_CACHE_TAG_MASK,a1 - - # read the tags from the tag RAM, and if they indicate a matching valid - # cache line then we invalidate that line - mov ICACHE_TAG(0,0),a0 - mov a1,d0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 # starting icache tag RAM - # access address - - and ~(L1_CACHE_DISPARITY-1),a1 # determine comparator base - or L1_CACHE_TAG_VALID,a1 - mov L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_VALID,d1 - - LOCAL_CLI_SAVE(d3) - - # disable the icache - movhu (a2),d0 - and ~CHCTR_ICEN,d0 - movhu d0,(a2) - - # and wait for it to calm down - setlb - movhu (a2),d0 - btst CHCTR_ICBUSY,d0 - lne - - # check all the way tags for this cache entry - mov (a0),d0 # read the tag in the way 0 slot - xor a1,d0 - and d1,d0 - beq debugger_local_icache_kill # jump if matched - - add L1_CACHE_WAYDISP,a0 - mov (a0),d0 # read the tag in the way 1 slot - xor a1,d0 - and d1,d0 - beq debugger_local_icache_kill # jump if matched - - add L1_CACHE_WAYDISP,a0 - mov (a0),d0 # read the tag in the way 2 slot - xor a1,d0 - and d1,d0 - beq debugger_local_icache_kill # jump if matched - - add L1_CACHE_WAYDISP,a0 - mov (a0),d0 # read the tag in the way 3 slot - xor a1,d0 - and d1,d0 - bne debugger_local_icache_finish # jump if not matched - -debugger_local_icache_kill: - mov d0,(a0) # kill the tag (D0 is 0 at this point) - -debugger_local_icache_finish: - # wait for the cache to finish what it's doing - setlb - movhu (a2),d0 - btst CHCTR_ICBUSY,d0 - lne - - # and reenable it - or CHCTR_ICEN,d0 - movhu d0,(a2) - movhu (a2),d0 - - # re-enable interrupts - LOCAL_IRQ_RESTORE(d3) - -debugger_local_cache_flushinv_one_icache_end: - ret [d3,a2],8 - .size debugger_local_cache_flushinv_one_icache,.-debugger_local_cache_flushinv_one_icache - -#ifdef CONFIG_MN10300_DEBUGGER_CACHE_INV_BY_TAG - .globl debugger_local_cache_flushinv_one - .type debugger_local_cache_flushinv_one,@function -debugger_local_cache_flushinv_one = debugger_local_cache_flushinv_one_icache -#endif diff --git a/arch/mn10300/mm/cache-dbg-inv.S b/arch/mn10300/mm/cache-dbg-inv.S deleted file mode 100644 index eba2d6dca066..000000000000 --- a/arch/mn10300/mm/cache-dbg-inv.S +++ /dev/null @@ -1,47 +0,0 @@ -/* MN10300 CPU cache invalidation routines - * - * Copyright (C) 2011 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - - .am33_2 - - .globl debugger_local_cache_flushinv - -############################################################################### -# -# void debugger_local_cache_flushinv(void) -# -# Invalidate the entire icache -# -############################################################################### - ALIGN - .globl debugger_local_cache_flushinv - .type debugger_local_cache_flushinv,@function -debugger_local_cache_flushinv: - # - # we only need to invalidate the icache in this cache mode - # - mov CHCTR,a0 - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq debugger_local_cache_flushinv_end - - invalidate_icache 1 - -debugger_local_cache_flushinv_end: - ret [],0 - .size debugger_local_cache_flushinv,.-debugger_local_cache_flushinv diff --git a/arch/mn10300/mm/cache-disabled.c b/arch/mn10300/mm/cache-disabled.c deleted file mode 100644 index f669ea42aba6..000000000000 --- a/arch/mn10300/mm/cache-disabled.c +++ /dev/null @@ -1,21 +0,0 @@ -/* Handle the cache being disabled - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/mm.h> - -/* - * allow userspace to flush the instruction cache - */ -asmlinkage long sys_cacheflush(unsigned long start, unsigned long end) -{ - if (end < start) - return -EINVAL; - return 0; -} diff --git a/arch/mn10300/mm/cache-flush-by-reg.S b/arch/mn10300/mm/cache-flush-by-reg.S deleted file mode 100644 index 1dcae0211671..000000000000 --- a/arch/mn10300/mm/cache-flush-by-reg.S +++ /dev/null @@ -1,308 +0,0 @@ -/* MN10300 CPU core caching routines, using indirect regs on cache controller - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> - - .am33_2 - -#ifndef CONFIG_SMP - .globl mn10300_dcache_flush - .globl mn10300_dcache_flush_page - .globl mn10300_dcache_flush_range - .globl mn10300_dcache_flush_range2 - .globl mn10300_dcache_flush_inv - .globl mn10300_dcache_flush_inv_page - .globl mn10300_dcache_flush_inv_range - .globl mn10300_dcache_flush_inv_range2 - -mn10300_dcache_flush = mn10300_local_dcache_flush -mn10300_dcache_flush_page = mn10300_local_dcache_flush_page -mn10300_dcache_flush_range = mn10300_local_dcache_flush_range -mn10300_dcache_flush_range2 = mn10300_local_dcache_flush_range2 -mn10300_dcache_flush_inv = mn10300_local_dcache_flush_inv -mn10300_dcache_flush_inv_page = mn10300_local_dcache_flush_inv_page -mn10300_dcache_flush_inv_range = mn10300_local_dcache_flush_inv_range -mn10300_dcache_flush_inv_range2 = mn10300_local_dcache_flush_inv_range2 - -#endif /* !CONFIG_SMP */ - -############################################################################### -# -# void mn10300_local_dcache_flush(void) -# Flush the entire data cache back to RAM -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush - .type mn10300_local_dcache_flush,@function -mn10300_local_dcache_flush: - movhu (CHCTR),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_flush_end - - mov DCPGCR,a0 - - LOCAL_CLI_SAVE(d1) - - # wait for busy bit of area purge - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - # set mask - clr d0 - mov d0,(DCPGMR) - - # area purge - # - # DCPGCR = DCPGCR_DCP - # - mov DCPGCR_DCP,d0 - mov d0,(a0) - - # wait for busy bit of area purge - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - LOCAL_IRQ_RESTORE(d1) - -mn10300_local_dcache_flush_end: - ret [],0 - .size mn10300_local_dcache_flush,.-mn10300_local_dcache_flush - -############################################################################### -# -# void mn10300_local_dcache_flush_page(unsigned long start) -# void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size) -# Flush a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_page - .globl mn10300_local_dcache_flush_range - .globl mn10300_local_dcache_flush_range2 - .type mn10300_local_dcache_flush_page,@function - .type mn10300_local_dcache_flush_range,@function - .type mn10300_local_dcache_flush_range2,@function -mn10300_local_dcache_flush_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_flush_range2: - add d0,d1 -mn10300_local_dcache_flush_range: - movm [d2,d3,a2],(sp) - - movhu (CHCTR),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_flush_range_end - - # calculate alignsize - # - # alignsize = L1_CACHE_BYTES; - # for (i = (end - start - 1) / L1_CACHE_BYTES ; i > 0; i >>= 1) - # alignsize <<= 1; - # d2 = alignsize; - # - mov L1_CACHE_BYTES,d2 - sub d0,d1,d3 - add -1,d3 - lsr L1_CACHE_SHIFT,d3 - beq 2f -1: - add d2,d2 - lsr 1,d3 - bne 1b -2: - mov d1,a1 # a1 = end - - LOCAL_CLI_SAVE(d3) - mov DCPGCR,a0 - - # wait for busy bit of area purge - setlb - mov (a0),d1 - btst DCPGCR_DCPGBSY,d1 - lne - - # determine the mask - mov d2,d1 - add -1,d1 - not d1 # d1 = mask = ~(alignsize-1) - mov d1,(DCPGMR) - - and d1,d0,a2 # a2 = mask & start - -dcpgloop: - # area purge - mov a2,d0 - or DCPGCR_DCP,d0 - mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCP - - # wait for busy bit of area purge - setlb - mov (a0),d1 - btst DCPGCR_DCPGBSY,d1 - lne - - # check purge of end address - add d2,a2 # a2 += alignsize - cmp a1,a2 # if (a2 < end) goto dcpgloop - bns dcpgloop - - LOCAL_IRQ_RESTORE(d3) - -mn10300_local_dcache_flush_range_end: - ret [d2,d3,a2],12 - - .size mn10300_local_dcache_flush_page,.-mn10300_local_dcache_flush_page - .size mn10300_local_dcache_flush_range,.-mn10300_local_dcache_flush_range - .size mn10300_local_dcache_flush_range2,.-mn10300_local_dcache_flush_range2 - -############################################################################### -# -# void mn10300_local_dcache_flush_inv(void) -# Flush the entire data cache and invalidate all entries -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_inv - .type mn10300_local_dcache_flush_inv,@function -mn10300_local_dcache_flush_inv: - movhu (CHCTR),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_flush_inv_end - - mov DCPGCR,a0 - - LOCAL_CLI_SAVE(d1) - - # wait for busy bit of area purge & invalidate - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - # set the mask to cover everything - clr d0 - mov d0,(DCPGMR) - - # area purge & invalidate - mov DCPGCR_DCP|DCPGCR_DCI,d0 - mov d0,(a0) - - # wait for busy bit of area purge & invalidate - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - LOCAL_IRQ_RESTORE(d1) - -mn10300_local_dcache_flush_inv_end: - ret [],0 - .size mn10300_local_dcache_flush_inv,.-mn10300_local_dcache_flush_inv - -############################################################################### -# -# void mn10300_local_dcache_flush_inv_page(unsigned long start) -# void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size) -# Flush and invalidate a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_inv_page - .globl mn10300_local_dcache_flush_inv_range - .globl mn10300_local_dcache_flush_inv_range2 - .type mn10300_local_dcache_flush_inv_page,@function - .type mn10300_local_dcache_flush_inv_range,@function - .type mn10300_local_dcache_flush_inv_range2,@function -mn10300_local_dcache_flush_inv_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_flush_inv_range2: - add d0,d1 -mn10300_local_dcache_flush_inv_range: - movm [d2,d3,a2],(sp) - - movhu (CHCTR),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_flush_inv_range_end - - # calculate alignsize - # - # alignsize = L1_CACHE_BYTES; - # for (i = (end - start - 1) / L1_CACHE_BYTES; i > 0; i >>= 1) - # alignsize <<= 1; - # d2 = alignsize - # - mov L1_CACHE_BYTES,d2 - sub d0,d1,d3 - add -1,d3 - lsr L1_CACHE_SHIFT,d3 - beq 2f -1: - add d2,d2 - lsr 1,d3 - bne 1b -2: - mov d1,a1 # a1 = end - - LOCAL_CLI_SAVE(d3) - mov DCPGCR,a0 - - # wait for busy bit of area purge & invalidate - setlb - mov (a0),d1 - btst DCPGCR_DCPGBSY,d1 - lne - - # set the mask - mov d2,d1 - add -1,d1 - not d1 # d1 = mask = ~(alignsize-1) - mov d1,(DCPGMR) - - and d1,d0,a2 # a2 = mask & start - -dcpgivloop: - # area purge & invalidate - mov a2,d0 - or DCPGCR_DCP|DCPGCR_DCI,d0 - mov d0,(a0) # DCPGCR = (mask & start)|DCPGCR_DCP|DCPGCR_DCI - - # wait for busy bit of area purge & invalidate - setlb - mov (a0),d1 - btst DCPGCR_DCPGBSY,d1 - lne - - # check purge & invalidate of end address - add d2,a2 # a2 += alignsize - cmp a1,a2 # if (a2 < end) goto dcpgivloop - bns dcpgivloop - - LOCAL_IRQ_RESTORE(d3) - -mn10300_local_dcache_flush_inv_range_end: - ret [d2,d3,a2],12 - .size mn10300_local_dcache_flush_inv_page,.-mn10300_local_dcache_flush_inv_page - .size mn10300_local_dcache_flush_inv_range,.-mn10300_local_dcache_flush_inv_range - .size mn10300_local_dcache_flush_inv_range2,.-mn10300_local_dcache_flush_inv_range2 diff --git a/arch/mn10300/mm/cache-flush-by-tag.S b/arch/mn10300/mm/cache-flush-by-tag.S deleted file mode 100644 index 1ddc06849242..000000000000 --- a/arch/mn10300/mm/cache-flush-by-tag.S +++ /dev/null @@ -1,250 +0,0 @@ -/* MN10300 CPU core caching routines, using direct tag flushing - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> - - .am33_2 - -#ifndef CONFIG_SMP - .globl mn10300_dcache_flush - .globl mn10300_dcache_flush_page - .globl mn10300_dcache_flush_range - .globl mn10300_dcache_flush_range2 - .globl mn10300_dcache_flush_inv - .globl mn10300_dcache_flush_inv_page - .globl mn10300_dcache_flush_inv_range - .globl mn10300_dcache_flush_inv_range2 - -mn10300_dcache_flush = mn10300_local_dcache_flush -mn10300_dcache_flush_page = mn10300_local_dcache_flush_page -mn10300_dcache_flush_range = mn10300_local_dcache_flush_range -mn10300_dcache_flush_range2 = mn10300_local_dcache_flush_range2 -mn10300_dcache_flush_inv = mn10300_local_dcache_flush_inv -mn10300_dcache_flush_inv_page = mn10300_local_dcache_flush_inv_page -mn10300_dcache_flush_inv_range = mn10300_local_dcache_flush_inv_range -mn10300_dcache_flush_inv_range2 = mn10300_local_dcache_flush_inv_range2 - -#endif /* !CONFIG_SMP */ - -############################################################################### -# -# void mn10300_local_dcache_flush(void) -# Flush the entire data cache back to RAM -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush - .type mn10300_local_dcache_flush,@function -mn10300_local_dcache_flush: - movhu (CHCTR),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_flush_end - - # read the addresses tagged in the cache's tag RAM and attempt to flush - # those addresses specifically - # - we rely on the hardware to filter out invalid tag entry addresses - mov DCACHE_TAG(0,0),a0 # dcache tag RAM access address - mov DCACHE_PURGE(0,0),a1 # dcache purge request address - mov L1_CACHE_NWAYS*L1_CACHE_NENTRIES,d1 # total number of entries - -mn10300_local_dcache_flush_loop: - mov (a0),d0 - and L1_CACHE_TAG_MASK,d0 - or L1_CACHE_TAG_VALID,d0 # retain valid entries in the - # cache - mov d0,(a1) # conditional purge - - add L1_CACHE_BYTES,a0 - add L1_CACHE_BYTES,a1 - add -1,d1 - bne mn10300_local_dcache_flush_loop - -mn10300_local_dcache_flush_end: - ret [],0 - .size mn10300_local_dcache_flush,.-mn10300_local_dcache_flush - -############################################################################### -# -# void mn10300_local_dcache_flush_page(unsigned long start) -# void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size) -# Flush a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_page - .globl mn10300_local_dcache_flush_range - .globl mn10300_local_dcache_flush_range2 - .type mn10300_local_dcache_flush_page,@function - .type mn10300_local_dcache_flush_range,@function - .type mn10300_local_dcache_flush_range2,@function -mn10300_local_dcache_flush_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_flush_range2: - add d0,d1 -mn10300_local_dcache_flush_range: - movm [d2],(sp) - - movhu (CHCTR),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_flush_range_end - - sub d0,d1,a0 - cmp MN10300_DCACHE_FLUSH_BORDER,a0 - ble 1f - - movm (sp),[d2] - bra mn10300_local_dcache_flush -1: - - # round start addr down - and L1_CACHE_TAG_MASK,d0 - mov d0,a1 - - add L1_CACHE_BYTES,d1 # round end addr up - and L1_CACHE_TAG_MASK,d1 - - # write a request to flush all instances of an address from the cache - mov DCACHE_PURGE(0,0),a0 - mov a1,d0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 # starting dcache purge control - # reg address - - sub a1,d1 - lsr L1_CACHE_SHIFT,d1 # total number of entries to - # examine - - or L1_CACHE_TAG_VALID,a1 # retain valid entries in the - # cache - -mn10300_local_dcache_flush_range_loop: - mov a1,(L1_CACHE_WAYDISP*0,a0) # conditionally purge this line - # all ways - - add L1_CACHE_BYTES,a0 - add L1_CACHE_BYTES,a1 - and ~L1_CACHE_WAYDISP,a0 # make sure way stay on way 0 - add -1,d1 - bne mn10300_local_dcache_flush_range_loop - -mn10300_local_dcache_flush_range_end: - ret [d2],4 - - .size mn10300_local_dcache_flush_page,.-mn10300_local_dcache_flush_page - .size mn10300_local_dcache_flush_range,.-mn10300_local_dcache_flush_range - .size mn10300_local_dcache_flush_range2,.-mn10300_local_dcache_flush_range2 - -############################################################################### -# -# void mn10300_local_dcache_flush_inv(void) -# Flush the entire data cache and invalidate all entries -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_inv - .type mn10300_local_dcache_flush_inv,@function -mn10300_local_dcache_flush_inv: - movhu (CHCTR),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_flush_inv_end - - mov L1_CACHE_NENTRIES,d1 - clr a1 - -mn10300_local_dcache_flush_inv_loop: - mov (DCACHE_PURGE_WAY0(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY1(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY2(0),a1),d0 # unconditional purge - mov (DCACHE_PURGE_WAY3(0),a1),d0 # unconditional purge - - add L1_CACHE_BYTES,a1 - add -1,d1 - bne mn10300_local_dcache_flush_inv_loop - -mn10300_local_dcache_flush_inv_end: - ret [],0 - .size mn10300_local_dcache_flush_inv,.-mn10300_local_dcache_flush_inv - -############################################################################### -# -# void mn10300_local_dcache_flush_inv_page(unsigned long start) -# void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size) -# Flush and invalidate a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_flush_inv_page - .globl mn10300_local_dcache_flush_inv_range - .globl mn10300_local_dcache_flush_inv_range2 - .type mn10300_local_dcache_flush_inv_page,@function - .type mn10300_local_dcache_flush_inv_range,@function - .type mn10300_local_dcache_flush_inv_range2,@function -mn10300_local_dcache_flush_inv_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_flush_inv_range2: - add d0,d1 -mn10300_local_dcache_flush_inv_range: - movm [d2],(sp) - - movhu (CHCTR),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_flush_inv_range_end - - sub d0,d1,a0 - cmp MN10300_DCACHE_FLUSH_INV_BORDER,a0 - ble 1f - - movm (sp),[d2] - bra mn10300_local_dcache_flush_inv -1: - - and L1_CACHE_TAG_MASK,d0 # round start addr down - mov d0,a1 - - add L1_CACHE_BYTES,d1 # round end addr up - and L1_CACHE_TAG_MASK,d1 - - # write a request to flush and invalidate all instances of an address - # from the cache - mov DCACHE_PURGE(0,0),a0 - mov a1,d0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 # starting dcache purge control - # reg address - - sub a1,d1 - lsr L1_CACHE_SHIFT,d1 # total number of entries to - # examine - -mn10300_local_dcache_flush_inv_range_loop: - mov a1,(L1_CACHE_WAYDISP*0,a0) # conditionally purge this line - # in all ways - - add L1_CACHE_BYTES,a0 - add L1_CACHE_BYTES,a1 - and ~L1_CACHE_WAYDISP,a0 # make sure way stay on way 0 - add -1,d1 - bne mn10300_local_dcache_flush_inv_range_loop - -mn10300_local_dcache_flush_inv_range_end: - ret [d2],4 - .size mn10300_local_dcache_flush_inv_page,.-mn10300_local_dcache_flush_inv_page - .size mn10300_local_dcache_flush_inv_range,.-mn10300_local_dcache_flush_inv_range - .size mn10300_local_dcache_flush_inv_range2,.-mn10300_local_dcache_flush_inv_range2 diff --git a/arch/mn10300/mm/cache-flush-icache.c b/arch/mn10300/mm/cache-flush-icache.c deleted file mode 100644 index fdb1a9db20f0..000000000000 --- a/arch/mn10300/mm/cache-flush-icache.c +++ /dev/null @@ -1,155 +0,0 @@ -/* Flush dcache and invalidate icache when the dcache is in writeback mode - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/mm.h> -#include <asm/cacheflush.h> -#include <asm/smp.h> -#include "cache-smp.h" - -/** - * flush_icache_page - Flush a page from the dcache and invalidate the icache - * @vma: The VMA the page is part of. - * @page: The page to be flushed. - * - * Write a page back from the dcache and invalidate the icache so that we can - * run code from it that we've just written into it - */ -void flush_icache_page(struct vm_area_struct *vma, struct page *page) -{ - unsigned long start = page_to_phys(page); - unsigned long flags; - - flags = smp_lock_cache(); - - mn10300_local_dcache_flush_page(start); - mn10300_local_icache_inv_page(start); - - smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start, start + PAGE_SIZE); - smp_unlock_cache(flags); -} -EXPORT_SYMBOL(flush_icache_page); - -/** - * flush_icache_page_range - Flush dcache and invalidate icache for part of a - * single page - * @start: The starting virtual address of the page part. - * @end: The ending virtual address of the page part. - * - * Flush the dcache and invalidate the icache for part of a single page, as - * determined by the virtual addresses given. The page must be in the paged - * area. - */ -static void flush_icache_page_range(unsigned long start, unsigned long end) -{ - unsigned long addr, size, off; - struct page *page; - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *ppte, pte; - - /* work out how much of the page to flush */ - off = start & ~PAGE_MASK; - size = end - start; - - /* get the physical address the page is mapped to from the page - * tables */ - pgd = pgd_offset(current->mm, start); - if (!pgd || !pgd_val(*pgd)) - return; - - pud = pud_offset(pgd, start); - if (!pud || !pud_val(*pud)) - return; - - pmd = pmd_offset(pud, start); - if (!pmd || !pmd_val(*pmd)) - return; - - ppte = pte_offset_map(pmd, start); - if (!ppte) - return; - pte = *ppte; - pte_unmap(ppte); - - if (pte_none(pte)) - return; - - page = pte_page(pte); - if (!page) - return; - - addr = page_to_phys(page); - - /* flush the dcache and invalidate the icache coverage on that - * region */ - mn10300_local_dcache_flush_range2(addr + off, size); - mn10300_local_icache_inv_range2(addr + off, size); - smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start, end); -} - -/** - * flush_icache_range - Globally flush dcache and invalidate icache for region - * @start: The starting virtual address of the region. - * @end: The ending virtual address of the region. - * - * This is used by the kernel to globally flush some code it has just written - * from the dcache back to RAM and then to globally invalidate the icache over - * that region so that that code can be run on all CPUs in the system. - */ -void flush_icache_range(unsigned long start, unsigned long end) -{ - unsigned long start_page, end_page; - unsigned long flags; - - flags = smp_lock_cache(); - - if (end > 0x80000000UL) { - /* addresses above 0xa0000000 do not go through the cache */ - if (end > 0xa0000000UL) { - end = 0xa0000000UL; - if (start >= end) - goto done; - } - - /* kernel addresses between 0x80000000 and 0x9fffffff do not - * require page tables, so we just map such addresses - * directly */ - start_page = (start >= 0x80000000UL) ? start : 0x80000000UL; - mn10300_local_dcache_flush_range(start_page, end); - mn10300_local_icache_inv_range(start_page, end); - smp_cache_call(SMP_IDCACHE_INV_FLUSH_RANGE, start_page, end); - if (start_page == start) - goto done; - end = start_page; - } - - start_page = start & PAGE_MASK; - end_page = (end - 1) & PAGE_MASK; - - if (start_page == end_page) { - /* the first and last bytes are on the same page */ - flush_icache_page_range(start, end); - } else if (start_page + 1 == end_page) { - /* split over two virtually contiguous pages */ - flush_icache_page_range(start, end_page); - flush_icache_page_range(end_page, end); - } else { - /* more than 2 pages; just flush the entire cache */ - mn10300_dcache_flush(); - mn10300_icache_inv(); - smp_cache_call(SMP_IDCACHE_INV_FLUSH, 0, 0); - } - -done: - smp_unlock_cache(flags); -} -EXPORT_SYMBOL(flush_icache_range); diff --git a/arch/mn10300/mm/cache-inv-by-reg.S b/arch/mn10300/mm/cache-inv-by-reg.S deleted file mode 100644 index a60825b91e77..000000000000 --- a/arch/mn10300/mm/cache-inv-by-reg.S +++ /dev/null @@ -1,350 +0,0 @@ -/* MN10300 CPU cache invalidation routines, using automatic purge registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - -#define mn10300_local_dcache_inv_range_intr_interval \ - +((1 << MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL) - 1) - -#if mn10300_local_dcache_inv_range_intr_interval > 0xff -#error MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL must be 8 or less -#endif - - .am33_2 - -#ifndef CONFIG_SMP - .globl mn10300_icache_inv - .globl mn10300_icache_inv_page - .globl mn10300_icache_inv_range - .globl mn10300_icache_inv_range2 - .globl mn10300_dcache_inv - .globl mn10300_dcache_inv_page - .globl mn10300_dcache_inv_range - .globl mn10300_dcache_inv_range2 - -mn10300_icache_inv = mn10300_local_icache_inv -mn10300_icache_inv_page = mn10300_local_icache_inv_page -mn10300_icache_inv_range = mn10300_local_icache_inv_range -mn10300_icache_inv_range2 = mn10300_local_icache_inv_range2 -mn10300_dcache_inv = mn10300_local_dcache_inv -mn10300_dcache_inv_page = mn10300_local_dcache_inv_page -mn10300_dcache_inv_range = mn10300_local_dcache_inv_range -mn10300_dcache_inv_range2 = mn10300_local_dcache_inv_range2 - -#endif /* !CONFIG_SMP */ - -############################################################################### -# -# void mn10300_local_icache_inv(void) -# Invalidate the entire icache -# -############################################################################### - ALIGN - .globl mn10300_local_icache_inv - .type mn10300_local_icache_inv,@function -mn10300_local_icache_inv: - mov CHCTR,a0 - - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq mn10300_local_icache_inv_end - - invalidate_icache 1 - -mn10300_local_icache_inv_end: - ret [],0 - .size mn10300_local_icache_inv,.-mn10300_local_icache_inv - -############################################################################### -# -# void mn10300_local_dcache_inv(void) -# Invalidate the entire dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_inv - .type mn10300_local_dcache_inv,@function -mn10300_local_dcache_inv: - mov CHCTR,a0 - - movhu (a0),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_inv_end - - invalidate_dcache 1 - -mn10300_local_dcache_inv_end: - ret [],0 - .size mn10300_local_dcache_inv,.-mn10300_local_dcache_inv - -############################################################################### -# -# void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size) -# void mn10300_local_dcache_inv_page(unsigned long start) -# Invalidate a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_inv_page - .globl mn10300_local_dcache_inv_range - .globl mn10300_local_dcache_inv_range2 - .type mn10300_local_dcache_inv_page,@function - .type mn10300_local_dcache_inv_range,@function - .type mn10300_local_dcache_inv_range2,@function -mn10300_local_dcache_inv_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_inv_range2: - add d0,d1 -mn10300_local_dcache_inv_range: - # If we are in writeback mode we check the start and end alignments, - # and if they're not cacheline-aligned, we must flush any bits outside - # the range that share cachelines with stuff inside the range -#ifdef CONFIG_MN10300_CACHE_WBACK - btst ~L1_CACHE_TAG_MASK,d0 - bne 1f - btst ~L1_CACHE_TAG_MASK,d1 - beq 2f -1: - bra mn10300_local_dcache_flush_inv_range -2: -#endif /* CONFIG_MN10300_CACHE_WBACK */ - - movm [d2,d3,a2],(sp) - - mov CHCTR,a0 - movhu (a0),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_inv_range_end - - # round the addresses out to be full cachelines, unless we're in - # writeback mode, in which case we would be in flush and invalidate by - # now -#ifndef CONFIG_MN10300_CACHE_WBACK - and L1_CACHE_TAG_MASK,d0 # round start addr down - - mov L1_CACHE_BYTES-1,d2 - add d2,d1 - and L1_CACHE_TAG_MASK,d1 # round end addr up -#endif /* !CONFIG_MN10300_CACHE_WBACK */ - - sub d0,d1,d2 # calculate the total size - mov d0,a2 # A2 = start address - mov d1,a1 # A1 = end address - - LOCAL_CLI_SAVE(d3) - - mov DCPGCR,a0 # make sure the purger isn't busy - setlb - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - # skip initial address alignment calculation if address is zero - mov d2,d1 - cmp 0,a2 - beq 1f - -dcivloop: - /* calculate alignsize - * - * alignsize = L1_CACHE_BYTES; - * while (! start & alignsize) { - * alignsize <<=1; - * } - * d1 = alignsize; - */ - mov L1_CACHE_BYTES,d1 - lsr 1,d1 - setlb - add d1,d1 - mov d1,d0 - and a2,d0 - leq - -1: - /* calculate invsize - * - * if (totalsize > alignsize) { - * invsize = alignsize; - * } else { - * invsize = totalsize; - * tmp = 0x80000000; - * while (! invsize & tmp) { - * tmp >>= 1; - * } - * invsize = tmp; - * } - * d1 = invsize - */ - cmp d2,d1 - bns 2f - mov d2,d1 - - mov 0x80000000,d0 # start from 31bit=1 - setlb - lsr 1,d0 - mov d0,e0 - and d1,e0 - leq - mov d0,d1 - -2: - /* set mask - * - * mask = ~(invsize-1); - * DCPGMR = mask; - */ - mov d1,d0 - add -1,d0 - not d0 - mov d0,(DCPGMR) - - # invalidate area - mov a2,d0 - or DCPGCR_DCI,d0 - mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCI - - setlb # wait for the purge to complete - mov (a0),d0 - btst DCPGCR_DCPGBSY,d0 - lne - - sub d1,d2 # decrease size remaining - add d1,a2 # increase next start address - - /* check invalidating of end address - * - * a2 = a2 + invsize - * if (a2 < end) { - * goto dcivloop; - * } */ - cmp a1,a2 - bns dcivloop - - LOCAL_IRQ_RESTORE(d3) - -mn10300_local_dcache_inv_range_end: - ret [d2,d3,a2],12 - .size mn10300_local_dcache_inv_page,.-mn10300_local_dcache_inv_page - .size mn10300_local_dcache_inv_range,.-mn10300_local_dcache_inv_range - .size mn10300_local_dcache_inv_range2,.-mn10300_local_dcache_inv_range2 - -############################################################################### -# -# void mn10300_local_icache_inv_page(unsigned long start) -# void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size) -# void mn10300_local_icache_inv_range(unsigned long start, unsigned long end) -# Invalidate a range of addresses on a page in the icache -# -############################################################################### - ALIGN - .globl mn10300_local_icache_inv_page - .globl mn10300_local_icache_inv_range - .globl mn10300_local_icache_inv_range2 - .type mn10300_local_icache_inv_page,@function - .type mn10300_local_icache_inv_range,@function - .type mn10300_local_icache_inv_range2,@function -mn10300_local_icache_inv_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_icache_inv_range2: - add d0,d1 -mn10300_local_icache_inv_range: - movm [d2,d3,a2],(sp) - - mov CHCTR,a0 - movhu (a0),d2 - btst CHCTR_ICEN,d2 - beq mn10300_local_icache_inv_range_reg_end - - /* calculate alignsize - * - * alignsize = L1_CACHE_BYTES; - * for (i = (end - start - 1) / L1_CACHE_BYTES ; i > 0; i >>= 1) { - * alignsize <<= 1; - * } - * d2 = alignsize; - */ - mov L1_CACHE_BYTES,d2 - sub d0,d1,d3 - add -1,d3 - lsr L1_CACHE_SHIFT,d3 - beq 2f -1: - add d2,d2 - lsr 1,d3 - bne 1b -2: - - /* a1 = end */ - mov d1,a1 - - LOCAL_CLI_SAVE(d3) - - mov ICIVCR,a0 - /* wait for busy bit of area invalidation */ - setlb - mov (a0),d1 - btst ICIVCR_ICIVBSY,d1 - lne - - /* set mask - * - * mask = ~(alignsize-1); - * ICIVMR = mask; - */ - mov d2,d1 - add -1,d1 - not d1 - mov d1,(ICIVMR) - /* a2 = mask & start */ - and d1,d0,a2 - -icivloop: - /* area invalidate - * - * ICIVCR = (mask & start) | ICIVCR_ICI - */ - mov a2,d0 - or ICIVCR_ICI,d0 - mov d0,(a0) - - /* wait for busy bit of area invalidation */ - setlb - mov (a0),d1 - btst ICIVCR_ICIVBSY,d1 - lne - - /* check invalidating of end address - * - * a2 = a2 + alignsize - * if (a2 < end) { - * goto icivloop; - * } */ - add d2,a2 - cmp a1,a2 - bns icivloop - - LOCAL_IRQ_RESTORE(d3) - -mn10300_local_icache_inv_range_reg_end: - ret [d2,d3,a2],12 - .size mn10300_local_icache_inv_page,.-mn10300_local_icache_inv_page - .size mn10300_local_icache_inv_range,.-mn10300_local_icache_inv_range - .size mn10300_local_icache_inv_range2,.-mn10300_local_icache_inv_range2 diff --git a/arch/mn10300/mm/cache-inv-by-tag.S b/arch/mn10300/mm/cache-inv-by-tag.S deleted file mode 100644 index ccedce9c144d..000000000000 --- a/arch/mn10300/mm/cache-inv-by-tag.S +++ /dev/null @@ -1,276 +0,0 @@ -/* MN10300 CPU core caching routines - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/irqflags.h> -#include <asm/cacheflush.h> -#include "cache.inc" - -#define mn10300_local_dcache_inv_range_intr_interval \ - +((1 << MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL) - 1) - -#if mn10300_local_dcache_inv_range_intr_interval > 0xff -#error MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL must be 8 or less -#endif - - .am33_2 - - .globl mn10300_local_icache_inv_page - .globl mn10300_local_icache_inv_range - .globl mn10300_local_icache_inv_range2 - -mn10300_local_icache_inv_page = mn10300_local_icache_inv -mn10300_local_icache_inv_range = mn10300_local_icache_inv -mn10300_local_icache_inv_range2 = mn10300_local_icache_inv - -#ifndef CONFIG_SMP - .globl mn10300_icache_inv - .globl mn10300_icache_inv_page - .globl mn10300_icache_inv_range - .globl mn10300_icache_inv_range2 - .globl mn10300_dcache_inv - .globl mn10300_dcache_inv_page - .globl mn10300_dcache_inv_range - .globl mn10300_dcache_inv_range2 - -mn10300_icache_inv = mn10300_local_icache_inv -mn10300_icache_inv_page = mn10300_local_icache_inv_page -mn10300_icache_inv_range = mn10300_local_icache_inv_range -mn10300_icache_inv_range2 = mn10300_local_icache_inv_range2 -mn10300_dcache_inv = mn10300_local_dcache_inv -mn10300_dcache_inv_page = mn10300_local_dcache_inv_page -mn10300_dcache_inv_range = mn10300_local_dcache_inv_range -mn10300_dcache_inv_range2 = mn10300_local_dcache_inv_range2 - -#endif /* !CONFIG_SMP */ - -############################################################################### -# -# void mn10300_local_icache_inv(void) -# Invalidate the entire icache -# -############################################################################### - ALIGN - .globl mn10300_local_icache_inv - .type mn10300_local_icache_inv,@function -mn10300_local_icache_inv: - mov CHCTR,a0 - - movhu (a0),d0 - btst CHCTR_ICEN,d0 - beq mn10300_local_icache_inv_end - - invalidate_icache 1 - -mn10300_local_icache_inv_end: - ret [],0 - .size mn10300_local_icache_inv,.-mn10300_local_icache_inv - -############################################################################### -# -# void mn10300_local_dcache_inv(void) -# Invalidate the entire dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_inv - .type mn10300_local_dcache_inv,@function -mn10300_local_dcache_inv: - mov CHCTR,a0 - - movhu (a0),d0 - btst CHCTR_DCEN,d0 - beq mn10300_local_dcache_inv_end - - invalidate_dcache 1 - -mn10300_local_dcache_inv_end: - ret [],0 - .size mn10300_local_dcache_inv,.-mn10300_local_dcache_inv - -############################################################################### -# -# void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end) -# void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size) -# void mn10300_local_dcache_inv_page(unsigned long start) -# Invalidate a range of addresses on a page in the dcache -# -############################################################################### - ALIGN - .globl mn10300_local_dcache_inv_page - .globl mn10300_local_dcache_inv_range - .globl mn10300_local_dcache_inv_range2 - .type mn10300_local_dcache_inv_page,@function - .type mn10300_local_dcache_inv_range,@function - .type mn10300_local_dcache_inv_range2,@function -mn10300_local_dcache_inv_page: - and ~(PAGE_SIZE-1),d0 - mov PAGE_SIZE,d1 -mn10300_local_dcache_inv_range2: - add d0,d1 -mn10300_local_dcache_inv_range: - # If we are in writeback mode we check the start and end alignments, - # and if they're not cacheline-aligned, we must flush any bits outside - # the range that share cachelines with stuff inside the range -#ifdef CONFIG_MN10300_CACHE_WBACK - btst ~L1_CACHE_TAG_MASK,d0 - bne 1f - btst ~L1_CACHE_TAG_MASK,d1 - beq 2f -1: - bra mn10300_local_dcache_flush_inv_range -2: -#endif /* CONFIG_MN10300_CACHE_WBACK */ - - movm [d2,d3,a2],(sp) - - mov CHCTR,a2 - movhu (a2),d2 - btst CHCTR_DCEN,d2 - beq mn10300_local_dcache_inv_range_end - -#ifndef CONFIG_MN10300_CACHE_WBACK - and L1_CACHE_TAG_MASK,d0 # round start addr down - - add L1_CACHE_BYTES,d1 # round end addr up - and L1_CACHE_TAG_MASK,d1 -#endif /* !CONFIG_MN10300_CACHE_WBACK */ - mov d0,a1 - - clr d2 # we're going to clear tag RAM - # entries - - # read the tags from the tag RAM, and if they indicate a valid dirty - # cache line then invalidate that line - mov DCACHE_TAG(0,0),a0 - mov a1,d0 - and L1_CACHE_TAG_ENTRY,d0 - add d0,a0 # starting dcache tag RAM - # access address - - sub a1,d1 - lsr L1_CACHE_SHIFT,d1 # total number of entries to - # examine - - and ~(L1_CACHE_DISPARITY-1),a1 # determine comparator base - -mn10300_local_dcache_inv_range_outer_loop: - LOCAL_CLI_SAVE(d3) - - # disable the dcache - movhu (a2),d0 - and ~CHCTR_DCEN,d0 - movhu d0,(a2) - - # and wait for it to calm down - setlb - movhu (a2),d0 - btst CHCTR_DCBUSY,d0 - lne - -mn10300_local_dcache_inv_range_loop: - - # process the way 0 slot - mov (L1_CACHE_WAYDISP*0,a0),d0 # read the tag in the way 0 slot - btst L1_CACHE_TAG_VALID,d0 - beq mn10300_local_dcache_inv_range_skip_0 # jump if this cacheline - # is not valid - - xor a1,d0 - lsr 12,d0 - bne mn10300_local_dcache_inv_range_skip_0 # jump if not this cacheline - - mov d2,(L1_CACHE_WAYDISP*0,a0) # kill the tag - -mn10300_local_dcache_inv_range_skip_0: - - # process the way 1 slot - mov (L1_CACHE_WAYDISP*1,a0),d0 # read the tag in the way 1 slot - btst L1_CACHE_TAG_VALID,d0 - beq mn10300_local_dcache_inv_range_skip_1 # jump if this cacheline - # is not valid - - xor a1,d0 - lsr 12,d0 - bne mn10300_local_dcache_inv_range_skip_1 # jump if not this cacheline - - mov d2,(L1_CACHE_WAYDISP*1,a0) # kill the tag - -mn10300_local_dcache_inv_range_skip_1: - - # process the way 2 slot - mov (L1_CACHE_WAYDISP*2,a0),d0 # read the tag in the way 2 slot - btst L1_CACHE_TAG_VALID,d0 - beq mn10300_local_dcache_inv_range_skip_2 # jump if this cacheline - # is not valid - - xor a1,d0 - lsr 12,d0 - bne mn10300_local_dcache_inv_range_skip_2 # jump if not this cacheline - - mov d2,(L1_CACHE_WAYDISP*2,a0) # kill the tag - -mn10300_local_dcache_inv_range_skip_2: - - # process the way 3 slot - mov (L1_CACHE_WAYDISP*3,a0),d0 # read the tag in the way 3 slot - btst L1_CACHE_TAG_VALID,d0 - beq mn10300_local_dcache_inv_range_skip_3 # jump if this cacheline - # is not valid - - xor a1,d0 - lsr 12,d0 - bne mn10300_local_dcache_inv_range_skip_3 # jump if not this cacheline - - mov d2,(L1_CACHE_WAYDISP*3,a0) # kill the tag - -mn10300_local_dcache_inv_range_skip_3: - - # approx every N steps we re-enable the cache and see if there are any - # interrupts to be processed - # we also break out if we've reached the end of the loop - # (the bottom nibble of the count is zero in both cases) - add L1_CACHE_BYTES,a0 - add L1_CACHE_BYTES,a1 - and ~L1_CACHE_WAYDISP,a0 - add -1,d1 - btst mn10300_local_dcache_inv_range_intr_interval,d1 - bne mn10300_local_dcache_inv_range_loop - - # wait for the cache to finish what it's doing - setlb - movhu (a2),d0 - btst CHCTR_DCBUSY,d0 - lne - - # and reenable it - or CHCTR_DCEN,d0 - movhu d0,(a2) - movhu (a2),d0 - - # re-enable interrupts - # - we don't bother with delay NOPs as we'll have enough instructions - # before we disable interrupts again to give the interrupts a chance - # to happen - LOCAL_IRQ_RESTORE(d3) - - # go around again if the counter hasn't yet reached zero - add 0,d1 - bne mn10300_local_dcache_inv_range_outer_loop - -mn10300_local_dcache_inv_range_end: - ret [d2,d3,a2],12 - .size mn10300_local_dcache_inv_page,.-mn10300_local_dcache_inv_page - .size mn10300_local_dcache_inv_range,.-mn10300_local_dcache_inv_range - .size mn10300_local_dcache_inv_range2,.-mn10300_local_dcache_inv_range2 diff --git a/arch/mn10300/mm/cache-inv-icache.c b/arch/mn10300/mm/cache-inv-icache.c deleted file mode 100644 index a6b63dde603d..000000000000 --- a/arch/mn10300/mm/cache-inv-icache.c +++ /dev/null @@ -1,129 +0,0 @@ -/* Invalidate icache when dcache doesn't need invalidation as it's in - * write-through mode - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/mm.h> -#include <asm/cacheflush.h> -#include <asm/smp.h> -#include "cache-smp.h" - -/** - * flush_icache_page_range - Flush dcache and invalidate icache for part of a - * single page - * @start: The starting virtual address of the page part. - * @end: The ending virtual address of the page part. - * - * Invalidate the icache for part of a single page, as determined by the - * virtual addresses given. The page must be in the paged area. The dcache is - * not flushed as the cache must be in write-through mode to get here. - */ -static void flush_icache_page_range(unsigned long start, unsigned long end) -{ - unsigned long addr, size, off; - struct page *page; - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *ppte, pte; - - /* work out how much of the page to flush */ - off = start & ~PAGE_MASK; - size = end - start; - - /* get the physical address the page is mapped to from the page - * tables */ - pgd = pgd_offset(current->mm, start); - if (!pgd || !pgd_val(*pgd)) - return; - - pud = pud_offset(pgd, start); - if (!pud || !pud_val(*pud)) - return; - - pmd = pmd_offset(pud, start); - if (!pmd || !pmd_val(*pmd)) - return; - - ppte = pte_offset_map(pmd, start); - if (!ppte) - return; - pte = *ppte; - pte_unmap(ppte); - - if (pte_none(pte)) - return; - - page = pte_page(pte); - if (!page) - return; - - addr = page_to_phys(page); - - /* invalidate the icache coverage on that region */ - mn10300_local_icache_inv_range2(addr + off, size); - smp_cache_call(SMP_ICACHE_INV_RANGE, start, end); -} - -/** - * flush_icache_range - Globally flush dcache and invalidate icache for region - * @start: The starting virtual address of the region. - * @end: The ending virtual address of the region. - * - * This is used by the kernel to globally flush some code it has just written - * from the dcache back to RAM and then to globally invalidate the icache over - * that region so that that code can be run on all CPUs in the system. - */ -void flush_icache_range(unsigned long start, unsigned long end) -{ - unsigned long start_page, end_page; - unsigned long flags; - - flags = smp_lock_cache(); - - if (end > 0x80000000UL) { - /* addresses above 0xa0000000 do not go through the cache */ - if (end > 0xa0000000UL) { - end = 0xa0000000UL; - if (start >= end) - goto done; - } - - /* kernel addresses between 0x80000000 and 0x9fffffff do not - * require page tables, so we just map such addresses - * directly */ - start_page = (start >= 0x80000000UL) ? start : 0x80000000UL; - mn10300_icache_inv_range(start_page, end); - smp_cache_call(SMP_ICACHE_INV_RANGE, start, end); - if (start_page == start) - goto done; - end = start_page; - } - - start_page = start & PAGE_MASK; - end_page = (end - 1) & PAGE_MASK; - - if (start_page == end_page) { - /* the first and last bytes are on the same page */ - flush_icache_page_range(start, end); - } else if (start_page + 1 == end_page) { - /* split over two virtually contiguous pages */ - flush_icache_page_range(start, end_page); - flush_icache_page_range(end_page, end); - } else { - /* more than 2 pages; just flush the entire cache */ - mn10300_local_icache_inv(); - smp_cache_call(SMP_ICACHE_INV, 0, 0); - } - -done: - smp_unlock_cache(flags); -} -EXPORT_SYMBOL(flush_icache_range); diff --git a/arch/mn10300/mm/cache-smp-flush.c b/arch/mn10300/mm/cache-smp-flush.c deleted file mode 100644 index fd51af5eaf70..000000000000 --- a/arch/mn10300/mm/cache-smp-flush.c +++ /dev/null @@ -1,156 +0,0 @@ -/* Functions for global dcache flush when writeback caching in SMP - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/mm.h> -#include <asm/cacheflush.h> -#include "cache-smp.h" - -/** - * mn10300_dcache_flush - Globally flush data cache - * - * Flush the data cache on all CPUs. - */ -void mn10300_dcache_flush(void) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush(); - smp_cache_call(SMP_DCACHE_FLUSH, 0, 0); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_page - Globally flush a page of data cache - * @start: The address of the page of memory to be flushed. - * - * Flush a range of addresses in the data cache on all CPUs covering - * the page that includes the given address. - */ -void mn10300_dcache_flush_page(unsigned long start) -{ - unsigned long flags; - - start &= ~(PAGE_SIZE-1); - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_page(start); - smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, start + PAGE_SIZE); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_range - Globally flush range of data cache - * @start: The start address of the region to be flushed. - * @end: The end address of the region to be flushed. - * - * Flush a range of addresses in the data cache on all CPUs, between start and - * end-1 inclusive. - */ -void mn10300_dcache_flush_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_range(start, end); - smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, end); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_range2 - Globally flush range of data cache - * @start: The start address of the region to be flushed. - * @size: The size of the region to be flushed. - * - * Flush a range of addresses in the data cache on all CPUs, between start and - * start+size-1 inclusive. - */ -void mn10300_dcache_flush_range2(unsigned long start, unsigned long size) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_range2(start, size); - smp_cache_call(SMP_DCACHE_FLUSH_RANGE, start, start + size); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_inv - Globally flush and invalidate data cache - * - * Flush and invalidate the data cache on all CPUs. - */ -void mn10300_dcache_flush_inv(void) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_inv(); - smp_cache_call(SMP_DCACHE_FLUSH_INV, 0, 0); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_inv_page - Globally flush and invalidate a page of data - * cache - * @start: The address of the page of memory to be flushed and invalidated. - * - * Flush and invalidate a range of addresses in the data cache on all CPUs - * covering the page that includes the given address. - */ -void mn10300_dcache_flush_inv_page(unsigned long start) -{ - unsigned long flags; - - start &= ~(PAGE_SIZE-1); - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_inv_page(start); - smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, start + PAGE_SIZE); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_inv_range - Globally flush and invalidate range of data - * cache - * @start: The start address of the region to be flushed and invalidated. - * @end: The end address of the region to be flushed and invalidated. - * - * Flush and invalidate a range of addresses in the data cache on all CPUs, - * between start and end-1 inclusive. - */ -void mn10300_dcache_flush_inv_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_inv_range(start, end); - smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, end); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_flush_inv_range2 - Globally flush and invalidate range of data - * cache - * @start: The start address of the region to be flushed and invalidated. - * @size: The size of the region to be flushed and invalidated. - * - * Flush and invalidate a range of addresses in the data cache on all CPUs, - * between start and start+size-1 inclusive. - */ -void mn10300_dcache_flush_inv_range2(unsigned long start, unsigned long size) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_flush_inv_range2(start, size); - smp_cache_call(SMP_DCACHE_FLUSH_INV_RANGE, start, start + size); - smp_unlock_cache(flags); -} diff --git a/arch/mn10300/mm/cache-smp-inv.c b/arch/mn10300/mm/cache-smp-inv.c deleted file mode 100644 index ff1787358c8e..000000000000 --- a/arch/mn10300/mm/cache-smp-inv.c +++ /dev/null @@ -1,153 +0,0 @@ -/* Functions for global i/dcache invalidation when caching in SMP - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/mm.h> -#include <asm/cacheflush.h> -#include "cache-smp.h" - -/** - * mn10300_icache_inv - Globally invalidate instruction cache - * - * Invalidate the instruction cache on all CPUs. - */ -void mn10300_icache_inv(void) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_icache_inv(); - smp_cache_call(SMP_ICACHE_INV, 0, 0); - smp_unlock_cache(flags); -} - -/** - * mn10300_icache_inv_page - Globally invalidate a page of instruction cache - * @start: The address of the page of memory to be invalidated. - * - * Invalidate a range of addresses in the instruction cache on all CPUs - * covering the page that includes the given address. - */ -void mn10300_icache_inv_page(unsigned long start) -{ - unsigned long flags; - - start &= ~(PAGE_SIZE-1); - - flags = smp_lock_cache(); - mn10300_local_icache_inv_page(start); - smp_cache_call(SMP_ICACHE_INV_RANGE, start, start + PAGE_SIZE); - smp_unlock_cache(flags); -} - -/** - * mn10300_icache_inv_range - Globally invalidate range of instruction cache - * @start: The start address of the region to be invalidated. - * @end: The end address of the region to be invalidated. - * - * Invalidate a range of addresses in the instruction cache on all CPUs, - * between start and end-1 inclusive. - */ -void mn10300_icache_inv_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_icache_inv_range(start, end); - smp_cache_call(SMP_ICACHE_INV_RANGE, start, end); - smp_unlock_cache(flags); -} - -/** - * mn10300_icache_inv_range2 - Globally invalidate range of instruction cache - * @start: The start address of the region to be invalidated. - * @size: The size of the region to be invalidated. - * - * Invalidate a range of addresses in the instruction cache on all CPUs, - * between start and start+size-1 inclusive. - */ -void mn10300_icache_inv_range2(unsigned long start, unsigned long size) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_icache_inv_range2(start, size); - smp_cache_call(SMP_ICACHE_INV_RANGE, start, start + size); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_inv - Globally invalidate data cache - * - * Invalidate the data cache on all CPUs. - */ -void mn10300_dcache_inv(void) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_inv(); - smp_cache_call(SMP_DCACHE_INV, 0, 0); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_inv_page - Globally invalidate a page of data cache - * @start: The address of the page of memory to be invalidated. - * - * Invalidate a range of addresses in the data cache on all CPUs covering the - * page that includes the given address. - */ -void mn10300_dcache_inv_page(unsigned long start) -{ - unsigned long flags; - - start &= ~(PAGE_SIZE-1); - - flags = smp_lock_cache(); - mn10300_local_dcache_inv_page(start); - smp_cache_call(SMP_DCACHE_INV_RANGE, start, start + PAGE_SIZE); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_inv_range - Globally invalidate range of data cache - * @start: The start address of the region to be invalidated. - * @end: The end address of the region to be invalidated. - * - * Invalidate a range of addresses in the data cache on all CPUs, between start - * and end-1 inclusive. - */ -void mn10300_dcache_inv_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_inv_range(start, end); - smp_cache_call(SMP_DCACHE_INV_RANGE, start, end); - smp_unlock_cache(flags); -} - -/** - * mn10300_dcache_inv_range2 - Globally invalidate range of data cache - * @start: The start address of the region to be invalidated. - * @size: The size of the region to be invalidated. - * - * Invalidate a range of addresses in the data cache on all CPUs, between start - * and start+size-1 inclusive. - */ -void mn10300_dcache_inv_range2(unsigned long start, unsigned long size) -{ - unsigned long flags; - - flags = smp_lock_cache(); - mn10300_local_dcache_inv_range2(start, size); - smp_cache_call(SMP_DCACHE_INV_RANGE, start, start + size); - smp_unlock_cache(flags); -} diff --git a/arch/mn10300/mm/cache-smp.c b/arch/mn10300/mm/cache-smp.c deleted file mode 100644 index e80996064d3d..000000000000 --- a/arch/mn10300/mm/cache-smp.c +++ /dev/null @@ -1,105 +0,0 @@ -/* SMP global caching code - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/mman.h> -#include <linux/threads.h> -#include <linux/interrupt.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/cacheflush.h> -#include <asm/io.h> -#include <linux/uaccess.h> -#include <asm/smp.h> -#include "cache-smp.h" - -DEFINE_SPINLOCK(smp_cache_lock); -static unsigned long smp_cache_mask; -static unsigned long smp_cache_start; -static unsigned long smp_cache_end; -static cpumask_t smp_cache_ipi_map; /* Bitmask of cache IPI done CPUs */ - -/** - * smp_cache_interrupt - Handle IPI request to flush caches. - * - * Handle a request delivered by IPI to flush the current CPU's - * caches. The parameters are stored in smp_cache_*. - */ -void smp_cache_interrupt(void) -{ - unsigned long opr_mask = smp_cache_mask; - - switch ((enum smp_dcache_ops)(opr_mask & SMP_DCACHE_OP_MASK)) { - case SMP_DCACHE_NOP: - break; - case SMP_DCACHE_INV: - mn10300_local_dcache_inv(); - break; - case SMP_DCACHE_INV_RANGE: - mn10300_local_dcache_inv_range(smp_cache_start, smp_cache_end); - break; - case SMP_DCACHE_FLUSH: - mn10300_local_dcache_flush(); - break; - case SMP_DCACHE_FLUSH_RANGE: - mn10300_local_dcache_flush_range(smp_cache_start, - smp_cache_end); - break; - case SMP_DCACHE_FLUSH_INV: - mn10300_local_dcache_flush_inv(); - break; - case SMP_DCACHE_FLUSH_INV_RANGE: - mn10300_local_dcache_flush_inv_range(smp_cache_start, - smp_cache_end); - break; - } - - switch ((enum smp_icache_ops)(opr_mask & SMP_ICACHE_OP_MASK)) { - case SMP_ICACHE_NOP: - break; - case SMP_ICACHE_INV: - mn10300_local_icache_inv(); - break; - case SMP_ICACHE_INV_RANGE: - mn10300_local_icache_inv_range(smp_cache_start, smp_cache_end); - break; - } - - cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map); -} - -/** - * smp_cache_call - Issue an IPI to request the other CPUs flush caches - * @opr_mask: Cache operation flags - * @start: Start address of request - * @end: End address of request - * - * Send cache flush IPI to other CPUs. This invokes smp_cache_interrupt() - * above on those other CPUs and then waits for them to finish. - * - * The caller must hold smp_cache_lock. - */ -void smp_cache_call(unsigned long opr_mask, - unsigned long start, unsigned long end) -{ - smp_cache_mask = opr_mask; - smp_cache_start = start; - smp_cache_end = end; - cpumask_copy(&smp_cache_ipi_map, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map); - - send_IPI_allbutself(FLUSH_CACHE_IPI); - - while (!cpumask_empty(&smp_cache_ipi_map)) - /* nothing. lockup detection does not belong here */ - mb(); -} diff --git a/arch/mn10300/mm/cache-smp.h b/arch/mn10300/mm/cache-smp.h deleted file mode 100644 index cb52892aa66a..000000000000 --- a/arch/mn10300/mm/cache-smp.h +++ /dev/null @@ -1,69 +0,0 @@ -/* SMP caching definitions - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - - -/* - * Operation requests for smp_cache_call(). - * - * One of smp_icache_ops and one of smp_dcache_ops can be OR'd together. - */ -enum smp_icache_ops { - SMP_ICACHE_NOP = 0x0000, - SMP_ICACHE_INV = 0x0001, - SMP_ICACHE_INV_RANGE = 0x0002, -}; -#define SMP_ICACHE_OP_MASK 0x0003 - -enum smp_dcache_ops { - SMP_DCACHE_NOP = 0x0000, - SMP_DCACHE_INV = 0x0004, - SMP_DCACHE_INV_RANGE = 0x0008, - SMP_DCACHE_FLUSH = 0x000c, - SMP_DCACHE_FLUSH_RANGE = 0x0010, - SMP_DCACHE_FLUSH_INV = 0x0014, - SMP_DCACHE_FLUSH_INV_RANGE = 0x0018, -}; -#define SMP_DCACHE_OP_MASK 0x001c - -#define SMP_IDCACHE_INV_FLUSH (SMP_ICACHE_INV | SMP_DCACHE_FLUSH) -#define SMP_IDCACHE_INV_FLUSH_RANGE (SMP_ICACHE_INV_RANGE | SMP_DCACHE_FLUSH_RANGE) - -/* - * cache-smp.c - */ -#ifdef CONFIG_SMP -extern spinlock_t smp_cache_lock; - -extern void smp_cache_call(unsigned long opr_mask, - unsigned long addr, unsigned long end); - -static inline unsigned long smp_lock_cache(void) - __acquires(&smp_cache_lock) -{ - unsigned long flags; - spin_lock_irqsave(&smp_cache_lock, flags); - return flags; -} - -static inline void smp_unlock_cache(unsigned long flags) - __releases(&smp_cache_lock) -{ - spin_unlock_irqrestore(&smp_cache_lock, flags); -} - -#else -static inline unsigned long smp_lock_cache(void) { return 0; } -static inline void smp_unlock_cache(unsigned long flags) {} -static inline void smp_cache_call(unsigned long opr_mask, - unsigned long addr, unsigned long end) -{ -} -#endif /* CONFIG_SMP */ diff --git a/arch/mn10300/mm/cache.c b/arch/mn10300/mm/cache.c deleted file mode 100644 index 0b925cce2b83..000000000000 --- a/arch/mn10300/mm/cache.c +++ /dev/null @@ -1,54 +0,0 @@ -/* MN10300 Cache flushing routines - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/mman.h> -#include <linux/threads.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/cacheflush.h> -#include <asm/io.h> -#include <linux/uaccess.h> -#include <asm/smp.h> -#include "cache-smp.h" - -EXPORT_SYMBOL(mn10300_icache_inv); -EXPORT_SYMBOL(mn10300_icache_inv_range); -EXPORT_SYMBOL(mn10300_icache_inv_range2); -EXPORT_SYMBOL(mn10300_icache_inv_page); -EXPORT_SYMBOL(mn10300_dcache_inv); -EXPORT_SYMBOL(mn10300_dcache_inv_range); -EXPORT_SYMBOL(mn10300_dcache_inv_range2); -EXPORT_SYMBOL(mn10300_dcache_inv_page); - -#ifdef CONFIG_MN10300_CACHE_WBACK -EXPORT_SYMBOL(mn10300_dcache_flush); -EXPORT_SYMBOL(mn10300_dcache_flush_inv); -EXPORT_SYMBOL(mn10300_dcache_flush_inv_range); -EXPORT_SYMBOL(mn10300_dcache_flush_inv_range2); -EXPORT_SYMBOL(mn10300_dcache_flush_inv_page); -EXPORT_SYMBOL(mn10300_dcache_flush_range); -EXPORT_SYMBOL(mn10300_dcache_flush_range2); -EXPORT_SYMBOL(mn10300_dcache_flush_page); -#endif - -/* - * allow userspace to flush the instruction cache - */ -asmlinkage long sys_cacheflush(unsigned long start, unsigned long end) -{ - if (end < start) - return -EINVAL; - - flush_icache_range(start, end); - return 0; -} diff --git a/arch/mn10300/mm/cache.inc b/arch/mn10300/mm/cache.inc deleted file mode 100644 index 394a119b9c73..000000000000 --- a/arch/mn10300/mm/cache.inc +++ /dev/null @@ -1,133 +0,0 @@ -/* MN10300 CPU core caching macros -*- asm -*- - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - - -############################################################################### -# -# Invalidate the instruction cache. -# A0: Should hold CHCTR -# D0: Should have been read from CHCTR -# D1: Will be clobbered -# -# On some cores it is necessary to disable the icache whilst we do this. -# -############################################################################### - .macro invalidate_icache,disable_irq - -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) - .if \disable_irq - # don't want an interrupt routine seeing a disabled cache - mov epsw,d1 - and ~EPSW_IE,epsw - or EPSW_NMID,epsw - nop - nop - .endif - - # disable the icache - and ~CHCTR_ICEN,d0 - movhu d0,(a0) - - # and wait for it to calm down - setlb - movhu (a0),d0 - btst CHCTR_ICBUSY,d0 - lne - - # invalidate - or CHCTR_ICINV,d0 - movhu d0,(a0) - - # wait for the cache to finish - setlb - movhu (a0),d0 - btst CHCTR_ICBUSY,d0 - lne - - # and reenable it - or CHCTR_ICEN,d0 - movhu d0,(a0) - movhu (a0),d0 - - .if \disable_irq - LOCAL_IRQ_RESTORE(d1) - .endif - -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - - # invalidate - or CHCTR_ICINV,d0 - movhu d0,(a0) - movhu (a0),d0 - -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - .endm - -############################################################################### -# -# Invalidate the data cache. -# A0: Should hold CHCTR -# D0: Should have been read from CHCTR -# D1: Will be clobbered -# -# On some cores it is necessary to disable the dcache whilst we do this. -# -############################################################################### - .macro invalidate_dcache,disable_irq - -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) - .if \disable_irq - # don't want an interrupt routine seeing a disabled cache - mov epsw,d1 - and ~EPSW_IE,epsw - or EPSW_NMID,epsw - nop - nop - .endif - - # disable the dcache - and ~CHCTR_DCEN,d0 - movhu d0,(a0) - - # and wait for it to calm down - setlb - movhu (a0),d0 - btst CHCTR_DCBUSY,d0 - lne - - # invalidate - or CHCTR_DCINV,d0 - movhu d0,(a0) - - # wait for the cache to finish - setlb - movhu (a0),d0 - btst CHCTR_DCBUSY,d0 - lne - - # and reenable it - or CHCTR_DCEN,d0 - movhu d0,(a0) - movhu (a0),d0 - - .if \disable_irq - LOCAL_IRQ_RESTORE(d1) - .endif - -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - - # invalidate - or CHCTR_DCINV,d0 - movhu d0,(a0) - movhu (a0),d0 - -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - .endm diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c deleted file mode 100644 index e3910d4db102..000000000000 --- a/arch/mn10300/mm/dma-alloc.c +++ /dev/null @@ -1,128 +0,0 @@ -/* MN10300 Dynamic DMA mapping support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * Derived from: arch/i386/kernel/pci-dma.c - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/pci.h> -#include <linux/gfp.h> -#include <linux/export.h> -#include <asm/io.h> - -static unsigned long pci_sram_allocated = 0xbc000000; - -static void *mn10300_dma_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) -{ - unsigned long addr; - void *ret; - - pr_debug("dma_alloc_coherent(%s,%zu,%x)\n", - dev ? dev_name(dev) : "?", size, gfp); - - if (0xbe000000 - pci_sram_allocated >= size) { - size = (size + 255) & ~255; - addr = pci_sram_allocated; - pci_sram_allocated += size; - ret = (void *) addr; - goto done; - } - - if (dev == NULL || dev->coherent_dma_mask < 0xffffffff) - gfp |= GFP_DMA; - - addr = __get_free_pages(gfp, get_order(size)); - if (!addr) - return NULL; - - /* map the coherent memory through the uncached memory window */ - ret = (void *) (addr | 0x20000000); - - /* fill the memory with obvious rubbish */ - memset((void *) addr, 0xfb, size); - - /* write back and evict all cache lines covering this region */ - mn10300_dcache_flush_inv_range2(virt_to_phys((void *) addr), PAGE_SIZE); - -done: - *dma_handle = virt_to_bus((void *) addr); - printk("dma_alloc_coherent() = %p [%x]\n", ret, *dma_handle); - return ret; -} - -static void mn10300_dma_free(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle, unsigned long attrs) -{ - unsigned long addr = (unsigned long) vaddr & ~0x20000000; - - if (addr >= 0x9c000000) - return; - - free_pages(addr, get_order(size)); -} - -static int mn10300_dma_map_sg(struct device *dev, struct scatterlist *sglist, - int nents, enum dma_data_direction direction, - unsigned long attrs) -{ - struct scatterlist *sg; - int i; - - for_each_sg(sglist, sg, nents, i) { - BUG_ON(!sg_page(sg)); - - sg->dma_address = sg_phys(sg); - } - - mn10300_dcache_flush_inv(); - return nents; -} - -static dma_addr_t mn10300_dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction, unsigned long attrs) -{ - return page_to_bus(page) + offset; -} - -static void mn10300_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction) -{ - mn10300_dcache_flush_inv(); -} - -static void mn10300_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction direction) -{ - mn10300_dcache_flush_inv(); -} - -static int mn10300_dma_supported(struct device *dev, u64 mask) -{ - /* - * we fall back to GFP_DMA when the mask isn't all 1s, so we can't - * guarantee allocations that must be within a tighter range than - * GFP_DMA - */ - if (mask < 0x00ffffff) - return 0; - return 1; -} - -const struct dma_map_ops mn10300_dma_ops = { - .alloc = mn10300_dma_alloc, - .free = mn10300_dma_free, - .map_page = mn10300_dma_map_page, - .map_sg = mn10300_dma_map_sg, - .sync_single_for_device = mn10300_dma_sync_single_for_device, - .sync_sg_for_device = mn10300_dma_sync_sg_for_device, -}; diff --git a/arch/mn10300/mm/extable.c b/arch/mn10300/mm/extable.c deleted file mode 100644 index 045a903ee6b9..000000000000 --- a/arch/mn10300/mm/extable.c +++ /dev/null @@ -1,26 +0,0 @@ -/* MN10300 In-kernel exception handling - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/extable.h> -#include <linux/spinlock.h> -#include <linux/uaccess.h> - -int fixup_exception(struct pt_regs *regs) -{ - const struct exception_table_entry *fixup; - - fixup = search_exception_tables(regs->pc); - if (fixup) { - regs->pc = fixup->fixup; - return 1; - } - - return 0; -} diff --git a/arch/mn10300/mm/fault.c b/arch/mn10300/mm/fault.c deleted file mode 100644 index f0bfa1448744..000000000000 --- a/arch/mn10300/mm/fault.c +++ /dev/null @@ -1,414 +0,0 @@ -/* MN10300 MMU Fault handler - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/vt_kern.h> /* For unblank_screen() */ -#include <linux/uaccess.h> - -#include <asm/pgalloc.h> -#include <asm/hardirq.h> -#include <asm/cpu-regs.h> -#include <asm/debugger.h> -#include <asm/gdb-stub.h> - -/* - * Unlock any spinlocks which will prevent us from getting the - * message out - */ -void bust_spinlocks(int yes) -{ - if (yes) { - oops_in_progress = 1; - } else { - int loglevel_save = console_loglevel; -#ifdef CONFIG_VT - unblank_screen(); -#endif - oops_in_progress = 0; - /* - * OK, the message is on the console. Now we call printk() - * without oops_in_progress set so that printk will give klogd - * a poke. Hold onto your hats... - */ - console_loglevel = 15; /* NMI oopser may have shut the console - * up */ - printk(" "); - console_loglevel = loglevel_save; - } -} - -void do_BUG(const char *file, int line) -{ - bust_spinlocks(1); - printk(KERN_EMERG CUT_HERE); - printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line); -} - -#if 0 -static void print_pagetable_entries(pgd_t *pgdir, unsigned long address) -{ - pgd_t *pgd; - pmd_t *pmd; - pte_t *pte; - - pgd = pgdir + __pgd_offset(address); - printk(KERN_DEBUG "pgd entry %p: %016Lx\n", - pgd, (long long) pgd_val(*pgd)); - - if (!pgd_present(*pgd)) { - printk(KERN_DEBUG "... pgd not present!\n"); - return; - } - pmd = pmd_offset(pgd, address); - printk(KERN_DEBUG "pmd entry %p: %016Lx\n", - pmd, (long long)pmd_val(*pmd)); - - if (!pmd_present(*pmd)) { - printk(KERN_DEBUG "... pmd not present!\n"); - return; - } - pte = pte_offset(pmd, address); - printk(KERN_DEBUG "pte entry %p: %016Lx\n", - pte, (long long) pte_val(*pte)); - - if (!pte_present(*pte)) - printk(KERN_DEBUG "... pte not present!\n"); -} -#endif - -/* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate - * routines. - * - * fault_code: - * - LSW: either MMUFCR_IFC or MMUFCR_DFC as appropriate - * - MSW: 0 if data access, 1 if instruction access - * - bit 0: TLB miss flag - * - bit 1: initial write - * - bit 2: page invalid - * - bit 3: protection violation - * - bit 4: accessor (0=user 1=kernel) - * - bit 5: 0=read 1=write - * - bit 6-8: page protection spec - * - bit 9: illegal address - * - bit 16: 0=data 1=ins - * - */ -asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code, - unsigned long address) -{ - struct vm_area_struct *vma; - struct task_struct *tsk; - struct mm_struct *mm; - unsigned long page; - siginfo_t info; - int fault; - unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE; - -#ifdef CONFIG_GDBSTUB - /* handle GDB stub causing a fault */ - if (gdbstub_busy) { - gdbstub_exception(regs, TBR & TBR_INT_CODE); - return; - } -#endif - -#if 0 - printk(KERN_DEBUG "--- do_page_fault(%p,%s:%04lx,%08lx)\n", - regs, - fault_code & 0x10000 ? "ins" : "data", - fault_code & 0xffff, address); -#endif - - tsk = current; - - /* - * We fault-in kernel-space virtual memory on-demand. The - * 'reference' page table is init_mm.pgd. - * - * NOTE! We MUST NOT take any locks for this case. We may - * be in an interrupt or a critical region, and should - * only copy the information from the master page table, - * nothing more. - * - * This verifies that the fault happens in kernel space - * and that the fault was a page not present (invalid) error - */ - if (address >= VMALLOC_START && address < VMALLOC_END && - (fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR && - (fault_code & MMUFCR_xFC_PGINVAL) == MMUFCR_xFC_PGINVAL - ) - goto vmalloc_fault; - - mm = tsk->mm; - info.si_code = SEGV_MAPERR; - - /* - * If we're in an interrupt or have no user - * context, we must not take the fault.. - */ - if (faulthandler_disabled() || !mm) - goto no_context; - - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) - flags |= FAULT_FLAG_USER; -retry: - down_read(&mm->mmap_sem); - - vma = find_vma(mm, address); - if (!vma) - goto bad_area; - if (vma->vm_start <= address) - goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; - - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) { - /* accessing the stack below the stack pointer is always a - * bug */ - if ((address & PAGE_MASK) + 2 * PAGE_SIZE < regs->sp) { -#if 0 - printk(KERN_WARNING - "[%d] ### Access below stack @%lx (sp=%lx)\n", - current->pid, address, regs->sp); - printk(KERN_WARNING - "vma [%08x - %08x]\n", - vma->vm_start, vma->vm_end); - show_registers(regs); - printk(KERN_WARNING - "[%d] ### Code: [%08lx]" - " %02x %02x %02x %02x %02x %02x %02x %02x\n", - current->pid, - regs->pc, - ((u8 *) regs->pc)[0], - ((u8 *) regs->pc)[1], - ((u8 *) regs->pc)[2], - ((u8 *) regs->pc)[3], - ((u8 *) regs->pc)[4], - ((u8 *) regs->pc)[5], - ((u8 *) regs->pc)[6], - ((u8 *) regs->pc)[7] - ); -#endif - goto bad_area; - } - } - - if (expand_stack(vma, address)) - goto bad_area; - -/* - * Ok, we have a good vm_area for this memory access, so - * we can handle it.. - */ -good_area: - info.si_code = SEGV_ACCERR; - switch (fault_code & (MMUFCR_xFC_PGINVAL|MMUFCR_xFC_TYPE)) { - default: /* 3: write, present */ - case MMUFCR_xFC_TYPE_WRITE: -#ifdef TEST_VERIFY_AREA - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR) - printk(KERN_DEBUG "WP fault at %08lx\n", regs->pc); -#endif - /* write to absent page */ - case MMUFCR_xFC_PGINVAL | MMUFCR_xFC_TYPE_WRITE: - if (!(vma->vm_flags & VM_WRITE)) - goto bad_area; - flags |= FAULT_FLAG_WRITE; - break; - - /* read from protected page */ - case MMUFCR_xFC_TYPE_READ: - goto bad_area; - - /* read from absent page present */ - case MMUFCR_xFC_PGINVAL | MMUFCR_xFC_TYPE_READ: - if (!(vma->vm_flags & (VM_READ | VM_EXEC))) - goto bad_area; - break; - } - - /* - * If for any reason at all we couldn't handle the fault, - * make sure we exit gracefully rather than endlessly redo - * the fault. - */ - fault = handle_mm_fault(vma, address, flags); - - if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) - return; - - if (unlikely(fault & VM_FAULT_ERROR)) { - if (fault & VM_FAULT_OOM) - goto out_of_memory; - else if (fault & VM_FAULT_SIGSEGV) - goto bad_area; - else if (fault & VM_FAULT_SIGBUS) - goto do_sigbus; - BUG(); - } - if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_MAJOR) - current->maj_flt++; - else - current->min_flt++; - if (fault & VM_FAULT_RETRY) { - flags &= ~FAULT_FLAG_ALLOW_RETRY; - - /* No need to up_read(&mm->mmap_sem) as we would - * have already released it in __lock_page_or_retry - * in mm/filemap.c. - */ - - goto retry; - } - } - - up_read(&mm->mmap_sem); - return; - -/* - * Something tried to access memory that isn't in our memory map.. - * Fix it, but check if it's kernel or user first.. - */ -bad_area: - up_read(&mm->mmap_sem); - - /* User mode accesses just cause a SIGSEGV */ - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) { - info.si_signo = SIGSEGV; - info.si_errno = 0; - /* info.si_code has been set above */ - info.si_addr = (void *)address; - force_sig_info(SIGSEGV, &info, tsk); - return; - } - -no_context: - /* Are we prepared to handle this kernel fault? */ - if (fixup_exception(regs)) - return; - -/* - * Oops. The kernel tried to access some bad page. We'll have to - * terminate things with extreme prejudice. - */ - - bust_spinlocks(1); - - if (address < PAGE_SIZE) - printk(KERN_ALERT - "Unable to handle kernel NULL pointer dereference"); - else - printk(KERN_ALERT - "Unable to handle kernel paging request"); - printk(" at virtual address %08lx\n", address); - printk(" printing pc:\n"); - printk(KERN_ALERT "%08lx\n", regs->pc); - - debugger_intercept(fault_code & 0x00010000 ? EXCEP_IAERROR : EXCEP_DAERROR, - SIGSEGV, SEGV_ACCERR, regs); - - page = PTBR; - page = ((unsigned long *) __va(page))[address >> 22]; - printk(KERN_ALERT "*pde = %08lx\n", page); - if (page & 1) { - page &= PAGE_MASK; - address &= 0x003ff000; - page = ((unsigned long *) __va(page))[address >> PAGE_SHIFT]; - printk(KERN_ALERT "*pte = %08lx\n", page); - } - - die("Oops", regs, fault_code); - do_exit(SIGKILL); - -/* - * We ran out of memory, or some other thing happened to us that made - * us unable to handle the page fault gracefully. - */ -out_of_memory: - up_read(&mm->mmap_sem); - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) { - pagefault_out_of_memory(); - return; - } - goto no_context; - -do_sigbus: - up_read(&mm->mmap_sem); - - /* - * Send a sigbus, regardless of whether we were in kernel - * or user mode. - */ - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRERR; - info.si_addr = (void *)address; - force_sig_info(SIGBUS, &info, tsk); - - /* Kernel mode? Handle exceptions or die */ - if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_SR) - goto no_context; - return; - -vmalloc_fault: - { - /* - * Synchronize this task's top level page-table - * with the 'reference' page table. - * - * Do _not_ use "tsk" here. We might be inside - * an interrupt in the middle of a task switch.. - */ - int index = pgd_index(address); - pgd_t *pgd, *pgd_k; - pud_t *pud, *pud_k; - pmd_t *pmd, *pmd_k; - pte_t *pte_k; - - pgd_k = init_mm.pgd + index; - - if (!pgd_present(*pgd_k)) - goto no_context; - - pud_k = pud_offset(pgd_k, address); - if (!pud_present(*pud_k)) - goto no_context; - - pmd_k = pmd_offset(pud_k, address); - if (!pmd_present(*pmd_k)) - goto no_context; - - pgd = (pgd_t *) PTBR + index; - pud = pud_offset(pgd, address); - pmd = pmd_offset(pud, address); - set_pmd(pmd, *pmd_k); - - pte_k = pte_offset_kernel(pmd_k, address); - if (!pte_present(*pte_k)) - goto no_context; - return; - } -} diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c deleted file mode 100644 index 8ce677d5575e..000000000000 --- a/arch/mn10300/mm/init.c +++ /dev/null @@ -1,136 +0,0 @@ -/* MN10300 Memory management initialisation - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/initrd.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> - -#include <asm/processor.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> -#include <asm/dma.h> -#include <asm/tlb.h> -#include <asm/sections.h> - -unsigned long highstart_pfn, highend_pfn; - -#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT -static struct vm_struct user_iomap_vm; -#endif - -/* - * set up paging - */ -void __init paging_init(void) -{ - unsigned long zones_size[MAX_NR_ZONES] = {0,}; - pte_t *ppte; - int loop; - - /* main kernel space -> RAM mapping is handled as 1:1 transparent by - * the MMU */ - memset(swapper_pg_dir, 0, sizeof(swapper_pg_dir)); - memset(kernel_vmalloc_ptes, 0, sizeof(kernel_vmalloc_ptes)); - - /* load the VMALLOC area PTE table addresses into the kernel PGD */ - ppte = kernel_vmalloc_ptes; - for (loop = VMALLOC_START / (PAGE_SIZE * PTRS_PER_PTE); - loop < VMALLOC_END / (PAGE_SIZE * PTRS_PER_PTE); - loop++ - ) { - set_pgd(swapper_pg_dir + loop, __pgd(__pa(ppte) | _PAGE_TABLE)); - ppte += PAGE_SIZE / sizeof(pte_t); - } - - /* declare the sizes of the RAM zones (only use the normal zone) */ - zones_size[ZONE_NORMAL] = - contig_page_data.bdata->node_low_pfn - - contig_page_data.bdata->node_min_pfn; - - /* pass the memory from the bootmem allocator to the main allocator */ - free_area_init(zones_size); - -#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT - /* The Atomic Operation Unit registers need to be mapped to userspace - * for all processes. The following uses vm_area_register_early() to - * reserve the first page of the vmalloc area and sets the pte for that - * page. - * - * glibc hardcodes this virtual mapping, so we're pretty much stuck with - * it from now on. - */ - user_iomap_vm.flags = VM_USERMAP; - user_iomap_vm.size = 1 << PAGE_SHIFT; - vm_area_register_early(&user_iomap_vm, PAGE_SIZE); - ppte = kernel_vmalloc_ptes; - set_pte(ppte, pfn_pte(USER_ATOMIC_OPS_PAGE_ADDR >> PAGE_SHIFT, - PAGE_USERIO)); -#endif - - local_flush_tlb_all(); -} - -/* - * transfer all the memory from the bootmem allocator to the runtime allocator - */ -void __init mem_init(void) -{ - BUG_ON(!mem_map); - -#define START_PFN (contig_page_data.bdata->node_min_pfn) -#define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn) - - max_mapnr = MAX_LOW_PFN - START_PFN; - high_memory = (void *) __va(MAX_LOW_PFN * PAGE_SIZE); - - /* clear the zero-page */ - memset(empty_zero_page, 0, PAGE_SIZE); - - /* this will put all low memory onto the freelists */ - free_all_bootmem(); - - mem_init_print_info(NULL); -} - -/* - * recycle memory containing stuff only required for initialisation - */ -void free_initmem(void) -{ - free_initmem_default(POISON_FREE_INITMEM); -} - -/* - * dispose of the memory on which the initial ramdisk resided - */ -#ifdef CONFIG_BLK_DEV_INITRD -void free_initrd_mem(unsigned long start, unsigned long end) -{ - free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM, - "initrd"); -} -#endif diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c deleted file mode 100644 index 8ace89617c1c..000000000000 --- a/arch/mn10300/mm/misalignment.c +++ /dev/null @@ -1,966 +0,0 @@ -/* MN10300 Misalignment fixup handler - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/extable.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <asm/processor.h> -#include <linux/uaccess.h> -#include <asm/io.h> -#include <linux/atomic.h> -#include <asm/smp.h> -#include <asm/pgalloc.h> -#include <asm/cpu-regs.h> -#include <asm/busctl-regs.h> -#include <asm/fpu.h> -#include <asm/gdb-stub.h> -#include <asm/asm-offsets.h> - -#if 0 -#define kdebug(FMT, ...) printk(KERN_DEBUG "MISALIGN: "FMT"\n", ##__VA_ARGS__) -#else -#define kdebug(FMT, ...) do {} while (0) -#endif - -static int misalignment_addr(unsigned long *registers, unsigned long sp, - unsigned params, unsigned opcode, - unsigned long disp, - void **_address, unsigned long **_postinc, - unsigned long *_inc); - -static int misalignment_reg(unsigned long *registers, unsigned params, - unsigned opcode, unsigned long disp, - unsigned long **_register); - -static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode); - -static const unsigned Dreg_index[] = { - REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2 -}; - -static const unsigned Areg_index[] = { - REG_A0 >> 2, REG_A1 >> 2, REG_A2 >> 2, REG_A3 >> 2 -}; - -static const unsigned Rreg_index[] = { - REG_E0 >> 2, REG_E1 >> 2, REG_E2 >> 2, REG_E3 >> 2, - REG_E4 >> 2, REG_E5 >> 2, REG_E6 >> 2, REG_E7 >> 2, - REG_A0 >> 2, REG_A1 >> 2, REG_A2 >> 2, REG_A3 >> 2, - REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2 -}; - -enum format_id { - FMT_S0, - FMT_S1, - FMT_S2, - FMT_S4, - FMT_D0, - FMT_D1, - FMT_D2, - FMT_D4, - FMT_D6, - FMT_D7, - FMT_D8, - FMT_D9, - FMT_D10, -}; - -static const struct { - u_int8_t opsz, dispsz; -} format_tbl[16] = { - [FMT_S0] = { 8, 0 }, - [FMT_S1] = { 8, 8 }, - [FMT_S2] = { 8, 16 }, - [FMT_S4] = { 8, 32 }, - [FMT_D0] = { 16, 0 }, - [FMT_D1] = { 16, 8 }, - [FMT_D2] = { 16, 16 }, - [FMT_D4] = { 16, 32 }, - [FMT_D6] = { 24, 0 }, - [FMT_D7] = { 24, 8 }, - [FMT_D8] = { 24, 24 }, - [FMT_D9] = { 24, 32 }, - [FMT_D10] = { 32, 0 }, -}; - -enum value_id { - DM0, /* data reg in opcode in bits 0-1 */ - DM1, /* data reg in opcode in bits 2-3 */ - DM2, /* data reg in opcode in bits 4-5 */ - AM0, /* addr reg in opcode in bits 0-1 */ - AM1, /* addr reg in opcode in bits 2-3 */ - AM2, /* addr reg in opcode in bits 4-5 */ - RM0, /* reg in opcode in bits 0-3 */ - RM1, /* reg in opcode in bits 2-5 */ - RM2, /* reg in opcode in bits 4-7 */ - RM4, /* reg in opcode in bits 8-11 */ - RM6, /* reg in opcode in bits 12-15 */ - - RD0, /* reg in displacement in bits 0-3 */ - RD2, /* reg in displacement in bits 4-7 */ - - SP, /* stack pointer */ - - SD8, /* 8-bit signed displacement */ - SD16, /* 16-bit signed displacement */ - SD24, /* 24-bit signed displacement */ - SIMM4_2, /* 4-bit signed displacement in opcode bits 4-7 */ - SIMM8, /* 8-bit signed immediate */ - IMM8, /* 8-bit unsigned immediate */ - IMM16, /* 16-bit unsigned immediate */ - IMM24, /* 24-bit unsigned immediate */ - IMM32, /* 32-bit unsigned immediate */ - IMM32_HIGH8, /* 32-bit unsigned immediate, LSB in opcode */ - - IMM32_MEM, /* 32-bit unsigned displacement */ - IMM32_HIGH8_MEM, /* 32-bit unsigned displacement, LSB in opcode */ - - DN0 = DM0, - DN1 = DM1, - DN2 = DM2, - AN0 = AM0, - AN1 = AM1, - AN2 = AM2, - RN0 = RM0, - RN1 = RM1, - RN2 = RM2, - RN4 = RM4, - RN6 = RM6, - DI = DM1, - RI = RM2, - -}; - -struct mn10300_opcode { - const char name[8]; - u_int32_t opcode; - u_int32_t opmask; - unsigned exclusion; - - enum format_id format; - - unsigned cpu_mask; -#define AM33 330 - - unsigned params[2]; -#define MEM(ADDR) (0x80000000 | (ADDR)) -#define MEM2(ADDR1, ADDR2) (0x80000000 | (ADDR1) << 8 | (ADDR2)) -#define MEMINC(ADDR) (0x81000000 | (ADDR)) -#define MEMINC2(ADDR, INC) (0x81000000 | (ADDR) << 8 | (INC)) -}; - -/* LIBOPCODES EXCERPT - Assemble Matsushita MN10300 instructions. - Copyright 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public Licence as published by - the Free Software Foundation; either version 2 of the Licence, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public Licence for more details. - - You should have received a copy of the GNU General Public Licence - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -*/ -static const struct mn10300_opcode mn10300_opcodes[] = { -{ "mov", 0x4200, 0xf300, 0, FMT_S1, 0, {DM1, MEM2(IMM8, SP)}}, -{ "mov", 0x4300, 0xf300, 0, FMT_S1, 0, {AM1, MEM2(IMM8, SP)}}, -{ "mov", 0x5800, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), DN0}}, -{ "mov", 0x5c00, 0xfc00, 0, FMT_S1, 0, {MEM2(IMM8, SP), AN0}}, -{ "mov", 0x60, 0xf0, 0, FMT_S0, 0, {DM1, MEM(AN0)}}, -{ "mov", 0x70, 0xf0, 0, FMT_S0, 0, {MEM(AM0), DN1}}, -{ "mov", 0xf000, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), AN1}}, -{ "mov", 0xf010, 0xfff0, 0, FMT_D0, 0, {AM1, MEM(AN0)}}, -{ "mov", 0xf300, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), DN2}}, -{ "mov", 0xf340, 0xffc0, 0, FMT_D0, 0, {DM2, MEM2(DI, AN0)}}, -{ "mov", 0xf380, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), AN2}}, -{ "mov", 0xf3c0, 0xffc0, 0, FMT_D0, 0, {AM2, MEM2(DI, AN0)}}, -{ "mov", 0xf80000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8, AM0), DN1}}, -{ "mov", 0xf81000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}}, -{ "mov", 0xf82000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8,AM0), AN1}}, -{ "mov", 0xf83000, 0xfff000, 0, FMT_D1, 0, {AM1, MEM2(SD8, AN0)}}, -{ "mov", 0xf90a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}}, -{ "mov", 0xf91a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}}, -{ "mov", 0xf96a00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}}, -{ "mov", 0xf97a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEMINC(RN0)}}, -{ "mov", 0xfa000000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), DN1}}, -{ "mov", 0xfa100000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}}, -{ "mov", 0xfa200000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), AN1}}, -{ "mov", 0xfa300000, 0xfff00000, 0, FMT_D2, 0, {AM1, MEM2(SD16, AN0)}}, -{ "mov", 0xfa900000, 0xfff30000, 0, FMT_D2, 0, {AM1, MEM2(IMM16, SP)}}, -{ "mov", 0xfa910000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}}, -{ "mov", 0xfab00000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), AN0}}, -{ "mov", 0xfab40000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}}, -{ "mov", 0xfb0a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}}, -{ "mov", 0xfb1a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}}, -{ "mov", 0xfb6a0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}}, -{ "mov", 0xfb7a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}}, -{ "mov", 0xfb8a0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}}, -{ "mov", 0xfb8e0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}}, -{ "mov", 0xfb9a0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}}, -{ "mov", 0xfb9e0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}}, -{ "mov", 0xfc000000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}}, -{ "mov", 0xfc100000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}}, -{ "mov", 0xfc200000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), AN1}}, -{ "mov", 0xfc300000, 0xfff00000, 0, FMT_D4, 0, {AM1, MEM2(IMM32,AN0)}}, -{ "mov", 0xfc800000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM(IMM32_MEM)}}, -{ "mov", 0xfc810000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}}, -{ "mov", 0xfc900000, 0xfff30000, 0, FMT_D4, 0, {AM1, MEM2(IMM32, SP)}}, -{ "mov", 0xfc910000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}}, -{ "mov", 0xfca00000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), AN0}}, -{ "mov", 0xfca40000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}}, -{ "mov", 0xfcb00000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), AN0}}, -{ "mov", 0xfcb40000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}}, -{ "mov", 0xfd0a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}}, -{ "mov", 0xfd1a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}}, -{ "mov", 0xfd6a0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}}, -{ "mov", 0xfd7a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}}, -{ "mov", 0xfd8a0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}}, -{ "mov", 0xfd9a0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}}, -{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}}, -{ "mov", 0xfe0a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}}, -{ "mov", 0xfe0e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}}, -{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}}, -{ "mov", 0xfe1a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}}, -{ "mov", 0xfe1e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}}, -{ "mov", 0xfe6a0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}}, -{ "mov", 0xfe7a0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}}, -{ "mov", 0xfe8a0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}}, -{ "mov", 0xfe9a0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}}, - -{ "movhu", 0xf060, 0xfff0, 0, FMT_D0, 0, {MEM(AM0), DN1}}, -{ "movhu", 0xf070, 0xfff0, 0, FMT_D0, 0, {DM1, MEM(AN0)}}, -{ "movhu", 0xf480, 0xffc0, 0, FMT_D0, 0, {MEM2(DI, AM0), DN2}}, -{ "movhu", 0xf4c0, 0xffc0, 0, FMT_D0, 0, {DM2, MEM2(DI, AN0)}}, -{ "movhu", 0xf86000, 0xfff000, 0, FMT_D1, 0, {MEM2(SD8, AM0), DN1}}, -{ "movhu", 0xf87000, 0xfff000, 0, FMT_D1, 0, {DM1, MEM2(SD8, AN0)}}, -{ "movhu", 0xf89300, 0xfff300, 0, FMT_D1, 0, {DM1, MEM2(IMM8, SP)}}, -{ "movhu", 0xf8bc00, 0xfffc00, 0, FMT_D1, 0, {MEM2(IMM8, SP), DN0}}, -{ "movhu", 0xf94a00, 0xffff00, 0, FMT_D6, AM33, {MEM(RM0), RN2}}, -{ "movhu", 0xf95a00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEM(RN0)}}, -{ "movhu", 0xf9ea00, 0xffff00, 0x12, FMT_D6, AM33, {MEMINC(RM0), RN2}}, -{ "movhu", 0xf9fa00, 0xffff00, 0, FMT_D6, AM33, {RM2, MEMINC(RN0)}}, -{ "movhu", 0xfa600000, 0xfff00000, 0, FMT_D2, 0, {MEM2(SD16, AM0), DN1}}, -{ "movhu", 0xfa700000, 0xfff00000, 0, FMT_D2, 0, {DM1, MEM2(SD16, AN0)}}, -{ "movhu", 0xfa930000, 0xfff30000, 0, FMT_D2, 0, {DM1, MEM2(IMM16, SP)}}, -{ "movhu", 0xfabc0000, 0xfffc0000, 0, FMT_D2, 0, {MEM2(IMM16, SP), DN0}}, -{ "movhu", 0xfb4a0000, 0xffff0000, 0, FMT_D7, AM33, {MEM2(SD8, RM0), RN2}}, -{ "movhu", 0xfb5a0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEM2(SD8, RN0)}}, -{ "movhu", 0xfbca0000, 0xffff0f00, 0, FMT_D7, AM33, {MEM2(IMM8, SP), RN2}}, -{ "movhu", 0xfbce0000, 0xffff000f, 0, FMT_D7, AM33, {MEM2(RI, RM0), RD2}}, -{ "movhu", 0xfbda0000, 0xffff0f00, 0, FMT_D7, AM33, {RM2, MEM2(IMM8, SP)}}, -{ "movhu", 0xfbde0000, 0xffff000f, 0, FMT_D7, AM33, {RD2, MEM2(RI, RN0)}}, -{ "movhu", 0xfbea0000, 0xffff0000, 0x22, FMT_D7, AM33, {MEMINC2 (RM0, SIMM8), RN2}}, -{ "movhu", 0xfbfa0000, 0xffff0000, 0, FMT_D7, AM33, {RM2, MEMINC2 (RN0, SIMM8)}}, -{ "movhu", 0xfc600000, 0xfff00000, 0, FMT_D4, 0, {MEM2(IMM32,AM0), DN1}}, -{ "movhu", 0xfc700000, 0xfff00000, 0, FMT_D4, 0, {DM1, MEM2(IMM32,AN0)}}, -{ "movhu", 0xfc830000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM(IMM32_MEM)}}, -{ "movhu", 0xfc930000, 0xfff30000, 0, FMT_D4, 0, {DM1, MEM2(IMM32, SP)}}, -{ "movhu", 0xfcac0000, 0xfffc0000, 0, FMT_D4, 0, {MEM(IMM32_MEM), DN0}}, -{ "movhu", 0xfcbc0000, 0xfffc0000, 0, FMT_D4, 0, {MEM2(IMM32, SP), DN0}}, -{ "movhu", 0xfd4a0000, 0xffff0000, 0, FMT_D8, AM33, {MEM2(SD24, RM0), RN2}}, -{ "movhu", 0xfd5a0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEM2(SD24, RN0)}}, -{ "movhu", 0xfdca0000, 0xffff0f00, 0, FMT_D8, AM33, {MEM2(IMM24, SP), RN2}}, -{ "movhu", 0xfdda0000, 0xffff0f00, 0, FMT_D8, AM33, {RM2, MEM2(IMM24, SP)}}, -{ "movhu", 0xfdea0000, 0xffff0000, 0x22, FMT_D8, AM33, {MEMINC2 (RM0, IMM24), RN2}}, -{ "movhu", 0xfdfa0000, 0xffff0000, 0, FMT_D8, AM33, {RM2, MEMINC2 (RN0, IMM24)}}, -{ "movhu", 0xfe4a0000, 0xffff0000, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8,RM0), RN2}}, -{ "movhu", 0xfe4e0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM(IMM32_HIGH8_MEM), RN2}}, -{ "movhu", 0xfe5a0000, 0xffff0000, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, RN0)}}, -{ "movhu", 0xfe5e0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM(IMM32_HIGH8_MEM)}}, -{ "movhu", 0xfeca0000, 0xffff0f00, 0, FMT_D9, AM33, {MEM2(IMM32_HIGH8, SP), RN2}}, -{ "movhu", 0xfeda0000, 0xffff0f00, 0, FMT_D9, AM33, {RM2, MEM2(IMM32_HIGH8, SP)}}, -{ "movhu", 0xfeea0000, 0xffff0000, 0x22, FMT_D9, AM33, {MEMINC2 (RM0, IMM32_HIGH8), RN2}}, -{ "movhu", 0xfefa0000, 0xffff0000, 0, FMT_D9, AM33, {RN2, MEMINC2 (RM0, IMM32_HIGH8)}}, - -{ "mov_llt", 0xf7e00000, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lgt", 0xf7e00001, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lge", 0xf7e00002, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lle", 0xf7e00003, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lcs", 0xf7e00004, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lhi", 0xf7e00005, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lcc", 0xf7e00006, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lls", 0xf7e00007, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_leq", 0xf7e00008, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lne", 0xf7e00009, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, -{ "mov_lra", 0xf7e0000a, 0xffff000f, 0x22, FMT_D10, AM33, {MEMINC2 (RN4,SIMM4_2), RM6}}, - -{ "", 0, 0, 0, 0, 0, {0}}, -}; - -/* - * fix up misalignment problems where possible - */ -asmlinkage void misalignment(struct pt_regs *regs, enum exception_code code) -{ - const struct exception_table_entry *fixup; - const struct mn10300_opcode *pop; - unsigned long *registers = (unsigned long *) regs; - unsigned long data, *store, *postinc, disp, inc, sp; - mm_segment_t seg; - siginfo_t info; - uint32_t opcode, noc, xo, xm; - uint8_t *pc, byte, datasz; - void *address; - unsigned tmp, npop, dispsz, loop; - - /* we don't fix up userspace misalignment faults */ - if (user_mode(regs)) - goto bus_error; - - sp = (unsigned long) regs + sizeof(*regs); - - kdebug("==>misalignment({pc=%lx,sp=%lx})", regs->pc, sp); - - if (regs->epsw & EPSW_IE) - asm volatile("or %0,epsw" : : "i"(EPSW_IE)); - - seg = get_fs(); - set_fs(KERNEL_DS); - - fixup = search_exception_tables(regs->pc); - - /* first thing to do is to match the opcode */ - pc = (u_int8_t *) regs->pc; - - if (__get_user(byte, pc) != 0) - goto fetch_error; - opcode = byte; - noc = 8; - - for (pop = mn10300_opcodes; pop->name[0]; pop++) { - npop = ilog2(pop->opcode | pop->opmask); - if (npop <= 0 || npop > 31) - continue; - npop = (npop + 8) & ~7; - - got_more_bits: - if (npop == noc) { - if ((opcode & pop->opmask) == pop->opcode) - goto found_opcode; - } else if (npop > noc) { - xo = pop->opcode >> (npop - noc); - xm = pop->opmask >> (npop - noc); - - if ((opcode & xm) != xo) - continue; - - /* we've got a partial match (an exact match on the - * first N bytes), so we need to get some more data */ - pc++; - if (__get_user(byte, pc) != 0) - goto fetch_error; - opcode = opcode << 8 | byte; - noc += 8; - goto got_more_bits; - } else { - /* there's already been a partial match as long as the - * complete match we're now considering, so this one - * should't match */ - continue; - } - } - - /* didn't manage to find a fixup */ - printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n", - regs->pc, opcode); - -failed: - set_fs(seg); - if (die_if_no_fixup("misalignment error", regs, code)) - return; - -bus_error: - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void *) regs->pc; - force_sig_info(SIGBUS, &info, current); - return; - - /* error reading opcodes */ -fetch_error: - printk(KERN_CRIT - "MISALIGN: %p: fault whilst reading instruction data\n", - pc); - goto failed; - -bad_addr_mode: - printk(KERN_CRIT - "MISALIGN: %lx: unsupported addressing mode %x\n", - regs->pc, opcode); - goto failed; - -bad_reg_mode: - printk(KERN_CRIT - "MISALIGN: %lx: unsupported register mode %x\n", - regs->pc, opcode); - goto failed; - -unsupported_instruction: - printk(KERN_CRIT - "MISALIGN: %lx: unsupported instruction %x (%s)\n", - regs->pc, opcode, pop->name); - goto failed; - -transfer_failed: - set_fs(seg); - if (fixup) { - regs->pc = fixup->fixup; - return; - } - if (die_if_no_fixup("misalignment fixup", regs, code)) - return; - - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void *) regs->pc; - force_sig_info(SIGSEGV, &info, current); - return; - - /* we matched the opcode */ -found_opcode: - kdebug("%lx: %x==%x { %x, %x }", - regs->pc, opcode, pop->opcode, pop->params[0], pop->params[1]); - - tmp = format_tbl[pop->format].opsz; - BUG_ON(tmp > noc); /* match was less complete than it ought to have been */ - - if (tmp < noc) { - tmp = noc - tmp; - opcode >>= tmp; - pc -= tmp >> 3; - } - - /* grab the extra displacement (note it's LSB first) */ - disp = 0; - dispsz = format_tbl[pop->format].dispsz; - for (loop = 0; loop < dispsz; loop += 8) { - pc++; - if (__get_user(byte, pc) != 0) - goto fetch_error; - disp |= byte << loop; - kdebug("{%p} disp[%02x]=%02x", pc, loop, byte); - } - - kdebug("disp=%lx", disp); - - set_fs(KERNEL_XDS); - if (fixup) - set_fs(seg); - - tmp = (pop->params[0] ^ pop->params[1]) & 0x80000000; - if (!tmp) { - printk(KERN_CRIT - "MISALIGN: %lx: insn not move to/from memory %x\n", - regs->pc, opcode); - goto failed; - } - - /* determine the data transfer size of the move */ - if (pop->name[3] == 0 || /* "mov" */ - pop->name[4] == 'l') /* mov_lcc */ - inc = datasz = 4; - else if (pop->name[3] == 'h') /* movhu */ - inc = datasz = 2; - else - goto unsupported_instruction; - - if (pop->params[0] & 0x80000000) { - /* move memory to register */ - if (!misalignment_addr(registers, sp, - pop->params[0], opcode, disp, - &address, &postinc, &inc)) - goto bad_addr_mode; - - if (!misalignment_reg(registers, pop->params[1], opcode, disp, - &store)) - goto bad_reg_mode; - - kdebug("mov%u (%p),DARn", datasz, address); - if (copy_from_user(&data, (void *) address, datasz) != 0) - goto transfer_failed; - if (pop->params[0] & 0x1000000) { - kdebug("inc=%lx", inc); - *postinc += inc; - } - - *store = data; - kdebug("loaded %lx", data); - } else { - /* move register to memory */ - if (!misalignment_reg(registers, pop->params[0], opcode, disp, - &store)) - goto bad_reg_mode; - - if (!misalignment_addr(registers, sp, - pop->params[1], opcode, disp, - &address, &postinc, &inc)) - goto bad_addr_mode; - - data = *store; - - kdebug("mov%u %lx,(%p)", datasz, data, address); - if (copy_to_user((void *) address, &data, datasz) != 0) - goto transfer_failed; - if (pop->params[1] & 0x1000000) - *postinc += inc; - } - - tmp = format_tbl[pop->format].opsz + format_tbl[pop->format].dispsz; - regs->pc += tmp >> 3; - - /* handle MOV_Lcc, which are currently the only FMT_D10 insns that - * access memory */ - if (pop->format == FMT_D10) - misalignment_MOV_Lcc(regs, opcode); - - set_fs(seg); -} - -/* - * determine the address that was being accessed - */ -static int misalignment_addr(unsigned long *registers, unsigned long sp, - unsigned params, unsigned opcode, - unsigned long disp, - void **_address, unsigned long **_postinc, - unsigned long *_inc) -{ - unsigned long *postinc = NULL, address = 0, tmp; - - if (!(params & 0x1000000)) { - kdebug("noinc"); - *_inc = 0; - _inc = NULL; - } - - params &= 0x00ffffff; - - do { - switch (params & 0xff) { - case DM0: - postinc = ®isters[Dreg_index[opcode & 0x03]]; - address += *postinc; - break; - case DM1: - postinc = ®isters[Dreg_index[opcode >> 2 & 0x03]]; - address += *postinc; - break; - case DM2: - postinc = ®isters[Dreg_index[opcode >> 4 & 0x03]]; - address += *postinc; - break; - case AM0: - postinc = ®isters[Areg_index[opcode & 0x03]]; - address += *postinc; - break; - case AM1: - postinc = ®isters[Areg_index[opcode >> 2 & 0x03]]; - address += *postinc; - break; - case AM2: - postinc = ®isters[Areg_index[opcode >> 4 & 0x03]]; - address += *postinc; - break; - case RM0: - postinc = ®isters[Rreg_index[opcode & 0x0f]]; - address += *postinc; - break; - case RM1: - postinc = ®isters[Rreg_index[opcode >> 2 & 0x0f]]; - address += *postinc; - break; - case RM2: - postinc = ®isters[Rreg_index[opcode >> 4 & 0x0f]]; - address += *postinc; - break; - case RM4: - postinc = ®isters[Rreg_index[opcode >> 8 & 0x0f]]; - address += *postinc; - break; - case RM6: - postinc = ®isters[Rreg_index[opcode >> 12 & 0x0f]]; - address += *postinc; - break; - case RD0: - postinc = ®isters[Rreg_index[disp & 0x0f]]; - address += *postinc; - break; - case RD2: - postinc = ®isters[Rreg_index[disp >> 4 & 0x0f]]; - address += *postinc; - break; - case SP: - address += sp; - break; - - /* displacements are either to be added to the address - * before use, or, in the case of post-inc addressing, - * to be added into the base register after use */ - case SD8: - case SIMM8: - disp = (long) (int8_t) (disp & 0xff); - goto displace_or_inc; - case SD16: - disp = (long) (int16_t) (disp & 0xffff); - goto displace_or_inc; - case SD24: - tmp = disp << 8; - asm("asr 8,%0" : "=r"(tmp) : "0"(tmp) : "cc"); - disp = (long) tmp; - goto displace_or_inc; - case SIMM4_2: - tmp = opcode >> 4 & 0x0f; - tmp <<= 28; - asm("asr 28,%0" : "=r"(tmp) : "0"(tmp) : "cc"); - disp = (long) tmp; - goto displace_or_inc; - case IMM8: - disp &= 0x000000ff; - goto displace_or_inc; - case IMM16: - disp &= 0x0000ffff; - goto displace_or_inc; - case IMM24: - disp &= 0x00ffffff; - goto displace_or_inc; - case IMM32: - case IMM32_MEM: - case IMM32_HIGH8: - case IMM32_HIGH8_MEM: - displace_or_inc: - kdebug("%s %lx", _inc ? "incr" : "disp", disp); - if (!_inc) - address += disp; - else - *_inc = disp; - break; - default: - BUG(); - return 0; - } - } while ((params >>= 8)); - - *_address = (void *) address; - *_postinc = postinc; - return 1; -} - -/* - * determine the register that is acting as source/dest - */ -static int misalignment_reg(unsigned long *registers, unsigned params, - unsigned opcode, unsigned long disp, - unsigned long **_register) -{ - params &= 0x7fffffff; - - if (params & 0xffffff00) - return 0; - - switch (params & 0xff) { - case DM0: - *_register = ®isters[Dreg_index[opcode & 0x03]]; - break; - case DM1: - *_register = ®isters[Dreg_index[opcode >> 2 & 0x03]]; - break; - case DM2: - *_register = ®isters[Dreg_index[opcode >> 4 & 0x03]]; - break; - case AM0: - *_register = ®isters[Areg_index[opcode & 0x03]]; - break; - case AM1: - *_register = ®isters[Areg_index[opcode >> 2 & 0x03]]; - break; - case AM2: - *_register = ®isters[Areg_index[opcode >> 4 & 0x03]]; - break; - case RM0: - *_register = ®isters[Rreg_index[opcode & 0x0f]]; - break; - case RM1: - *_register = ®isters[Rreg_index[opcode >> 2 & 0x0f]]; - break; - case RM2: - *_register = ®isters[Rreg_index[opcode >> 4 & 0x0f]]; - break; - case RM4: - *_register = ®isters[Rreg_index[opcode >> 8 & 0x0f]]; - break; - case RM6: - *_register = ®isters[Rreg_index[opcode >> 12 & 0x0f]]; - break; - case RD0: - *_register = ®isters[Rreg_index[disp & 0x0f]]; - break; - case RD2: - *_register = ®isters[Rreg_index[disp >> 4 & 0x0f]]; - break; - case SP: - *_register = ®isters[REG_SP >> 2]; - break; - - default: - BUG(); - return 0; - } - - return 1; -} - -/* - * handle the conditional loop part of the move-and-loop instructions - */ -static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode) -{ - unsigned long epsw = regs->epsw; - unsigned long NxorV; - - kdebug("MOV_Lcc %x [flags=%lx]", opcode, epsw & 0xf); - - /* calculate N^V and shift onto the same bit position as Z */ - NxorV = ((epsw >> 3) ^ epsw >> 1) & 1; - - switch (opcode & 0xf) { - case 0x0: /* MOV_LLT: N^V */ - if (NxorV) - goto take_the_loop; - return; - case 0x1: /* MOV_LGT: ~(Z or (N^V))*/ - if (!((epsw & EPSW_FLAG_Z) | NxorV)) - goto take_the_loop; - return; - case 0x2: /* MOV_LGE: ~(N^V) */ - if (!NxorV) - goto take_the_loop; - return; - case 0x3: /* MOV_LLE: Z or (N^V) */ - if ((epsw & EPSW_FLAG_Z) | NxorV) - goto take_the_loop; - return; - - case 0x4: /* MOV_LCS: C */ - if (epsw & EPSW_FLAG_C) - goto take_the_loop; - return; - case 0x5: /* MOV_LHI: ~(C or Z) */ - if (!(epsw & (EPSW_FLAG_C | EPSW_FLAG_Z))) - goto take_the_loop; - return; - case 0x6: /* MOV_LCC: ~C */ - if (!(epsw & EPSW_FLAG_C)) - goto take_the_loop; - return; - case 0x7: /* MOV_LLS: C or Z */ - if (epsw & (EPSW_FLAG_C | EPSW_FLAG_Z)) - goto take_the_loop; - return; - - case 0x8: /* MOV_LEQ: Z */ - if (epsw & EPSW_FLAG_Z) - goto take_the_loop; - return; - case 0x9: /* MOV_LNE: ~Z */ - if (!(epsw & EPSW_FLAG_Z)) - goto take_the_loop; - return; - case 0xa: /* MOV_LRA: always */ - goto take_the_loop; - - default: - BUG(); - } - -take_the_loop: - /* wind the PC back to just after the SETLB insn */ - kdebug("loop LAR=%lx", regs->lar); - regs->pc = regs->lar - 4; -} - -/* - * misalignment handler tests - */ -#ifdef CONFIG_TEST_MISALIGNMENT_HANDLER -static u8 __initdata testbuf[512] __attribute__((aligned(16))) = { - [257] = 0x11, - [258] = 0x22, - [259] = 0x33, - [260] = 0x44, -}; - -#define ASSERTCMP(X, OP, Y) \ -do { \ - if (unlikely(!((X) OP (Y)))) { \ - printk(KERN_ERR "\n"); \ - printk(KERN_ERR "MISALIGN: Assertion failed at line %u\n", \ - __LINE__); \ - printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n", \ - (unsigned long)(X), (unsigned long)(Y)); \ - BUG(); \ - } \ -} while(0) - -static int __init test_misalignment(void) -{ - register void *r asm("e0"); - register u32 y asm("e1"); - void *p = testbuf, *q; - u32 tmp, tmp2, x; - - printk(KERN_NOTICE "==>test_misalignment() [testbuf=%p]\n", p); - p++; - - printk(KERN_NOTICE "___ MOV (Am),Dn ___\n"); - q = p + 256; - asm volatile("mov (%0),%1" : "+a"(q), "=d"(x)); - ASSERTCMP(q, ==, p + 256); - ASSERTCMP(x, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (256,Am),Dn ___\n"); - q = p; - asm volatile("mov (256,%0),%1" : "+a"(q), "=d"(x)); - ASSERTCMP(q, ==, p); - ASSERTCMP(x, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (Di,Am),Dn ___\n"); - tmp = 256; - q = p; - asm volatile("mov (%2,%0),%1" : "+a"(q), "=d"(x), "+d"(tmp)); - ASSERTCMP(q, ==, p); - ASSERTCMP(x, ==, 0x44332211); - ASSERTCMP(tmp, ==, 256); - - printk(KERN_NOTICE "___ MOV (256,Rm),Rn ___\n"); - r = p; - asm volatile("mov (256,%0),%1" : "+r"(r), "=r"(y)); - ASSERTCMP(r, ==, p); - ASSERTCMP(y, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (Rm+),Rn ___\n"); - r = p + 256; - asm volatile("mov (%0+),%1" : "+r"(r), "=r"(y)); - ASSERTCMP(r, ==, p + 256 + 4); - ASSERTCMP(y, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (Rm+,8),Rn ___\n"); - r = p + 256; - asm volatile("mov (%0+,8),%1" : "+r"(r), "=r"(y)); - ASSERTCMP(r, ==, p + 256 + 8); - ASSERTCMP(y, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (7,SP),Rn ___\n"); - asm volatile( - "add -16,sp \n" - "mov +0x11,%0 \n" - "movbu %0,(7,sp) \n" - "mov +0x22,%0 \n" - "movbu %0,(8,sp) \n" - "mov +0x33,%0 \n" - "movbu %0,(9,sp) \n" - "mov +0x44,%0 \n" - "movbu %0,(10,sp) \n" - "mov (7,sp),%1 \n" - "add +16,sp \n" - : "+a"(q), "=d"(x)); - ASSERTCMP(x, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV (259,SP),Rn ___\n"); - asm volatile( - "add -264,sp \n" - "mov +0x11,%0 \n" - "movbu %0,(259,sp) \n" - "mov +0x22,%0 \n" - "movbu %0,(260,sp) \n" - "mov +0x33,%0 \n" - "movbu %0,(261,sp) \n" - "mov +0x55,%0 \n" - "movbu %0,(262,sp) \n" - "mov (259,sp),%1 \n" - "add +264,sp \n" - : "+d"(tmp), "=d"(x)); - ASSERTCMP(x, ==, 0x55332211); - - printk(KERN_NOTICE "___ MOV (260,SP),Rn ___\n"); - asm volatile( - "add -264,sp \n" - "mov +0x11,%0 \n" - "movbu %0,(260,sp) \n" - "mov +0x22,%0 \n" - "movbu %0,(261,sp) \n" - "mov +0x33,%0 \n" - "movbu %0,(262,sp) \n" - "mov +0x55,%0 \n" - "movbu %0,(263,sp) \n" - "mov (260,sp),%1 \n" - "add +264,sp \n" - : "+d"(tmp), "=d"(x)); - ASSERTCMP(x, ==, 0x55332211); - - - printk(KERN_NOTICE "___ MOV_LNE ___\n"); - tmp = 1; - tmp2 = 2; - q = p + 256; - asm volatile( - "setlb \n" - "mov %2,%3 \n" - "mov %1,%2 \n" - "cmp +0,%1 \n" - "mov_lne (%0+,4),%1" - : "+r"(q), "+d"(tmp), "+d"(tmp2), "=d"(x) - : - : "cc"); - ASSERTCMP(q, ==, p + 256 + 12); - ASSERTCMP(x, ==, 0x44332211); - - printk(KERN_NOTICE "___ MOV in SETLB ___\n"); - tmp = 1; - tmp2 = 2; - q = p + 256; - asm volatile( - "setlb \n" - "mov %1,%3 \n" - "mov (%0+),%1 \n" - "cmp +0,%1 \n" - "lne " - : "+a"(q), "+d"(tmp), "+d"(tmp2), "=d"(x) - : - : "cc"); - - ASSERTCMP(q, ==, p + 256 + 8); - ASSERTCMP(x, ==, 0x44332211); - - printk(KERN_NOTICE "<==test_misalignment()\n"); - return 0; -} - -arch_initcall(test_misalignment); - -#endif /* CONFIG_TEST_MISALIGNMENT_HANDLER */ diff --git a/arch/mn10300/mm/mmu-context.c b/arch/mn10300/mm/mmu-context.c deleted file mode 100644 index a4f7d3dcc6e6..000000000000 --- a/arch/mn10300/mm/mmu-context.c +++ /dev/null @@ -1,62 +0,0 @@ -/* MN10300 MMU context allocation and management - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/mmu_context.h> -#include <asm/tlbflush.h> - -#ifdef CONFIG_MN10300_TLB_USE_PIDR -/* - * list of the MMU contexts last allocated on each CPU - */ -unsigned long mmu_context_cache[NR_CPUS] = { - [0 ... NR_CPUS - 1] = - MMU_CONTEXT_FIRST_VERSION * 2 - (1 - MMU_CONTEXT_TLBPID_LOCK_NR), -}; -#endif /* CONFIG_MN10300_TLB_USE_PIDR */ - -/* - * preemptively set a TLB entry - */ -void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - unsigned long pteu, ptel, cnx, flags; - pte_t pte = *ptep; - - addr &= PAGE_MASK; - ptel = pte_val(pte) & ~(xPTEL_UNUSED1 | xPTEL_UNUSED2); - - /* make sure the context doesn't migrate and defend against - * interference from vmalloc'd regions */ - local_irq_save(flags); - - cnx = ~MMU_NO_CONTEXT; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - cnx = mm_context(vma->vm_mm); -#endif - - if (cnx != MMU_NO_CONTEXT) { - pteu = addr; -#ifdef CONFIG_MN10300_TLB_USE_PIDR - pteu |= cnx & MMU_CONTEXT_TLBPID_MASK; -#endif - if (!(pte_val(pte) & _PAGE_NX)) { - IPTEU = pteu; - if (IPTEL & xPTEL_V) - IPTEL = ptel; - } - DPTEU = pteu; - if (DPTEL & xPTEL_V) - DPTEL = ptel; - } - - local_irq_restore(flags); -} diff --git a/arch/mn10300/mm/pgtable.c b/arch/mn10300/mm/pgtable.c deleted file mode 100644 index 9577cf768875..000000000000 --- a/arch/mn10300/mm/pgtable.c +++ /dev/null @@ -1,174 +0,0 @@ -/* MN10300 Page table management - * - * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Modified by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/gfp.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/smp.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/spinlock.h> -#include <linux/quicklist.h> - -#include <asm/pgtable.h> -#include <asm/pgalloc.h> -#include <asm/tlb.h> -#include <asm/tlbflush.h> - -/* - * Associate a large virtual page frame with a given physical page frame - * and protection flags for that frame. pfn is for the base of the page, - * vaddr is what the page gets mapped to - both must be properly aligned. - * The pmd must already be instantiated. Assumes PAE mode. - */ -void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - - if (vaddr & (PMD_SIZE-1)) { /* vaddr is misaligned */ - printk(KERN_ERR "set_pmd_pfn: vaddr misaligned\n"); - return; /* BUG(); */ - } - if (pfn & (PTRS_PER_PTE-1)) { /* pfn is misaligned */ - printk(KERN_ERR "set_pmd_pfn: pfn misaligned\n"); - return; /* BUG(); */ - } - pgd = swapper_pg_dir + pgd_index(vaddr); - if (pgd_none(*pgd)) { - printk(KERN_ERR "set_pmd_pfn: pgd_none\n"); - return; /* BUG(); */ - } - pud = pud_offset(pgd, vaddr); - pmd = pmd_offset(pud, vaddr); - set_pmd(pmd, pfn_pmd(pfn, flags)); - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) - */ - local_flush_tlb_one(vaddr); -} - -pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL); - if (pte) - clear_page(pte); - return pte; -} - -struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) -{ - struct page *pte; - -#ifdef CONFIG_HIGHPTE - pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0); -#else - pte = alloc_pages(GFP_KERNEL, 0); -#endif - if (!pte) - return NULL; - clear_highpage(pte); - if (!pgtable_page_ctor(pte)) { - __free_page(pte); - return NULL; - } - return pte; -} - -/* - * List of all pgd's needed for non-PAE so it can invalidate entries - * in both cached and uncached pgd's; not needed for PAE since the - * kernel pmd is shared. If PAE were not to share the pmd a similar - * tactic would be needed. This is essentially codepath-based locking - * against pageattr.c; it is the unique case in which a valid change - * of kernel pagetables can't be lazily synchronized by vmalloc faults. - * vmalloc faults work because attached pagetables are never freed. - * If the locking proves to be non-performant, a ticketing scheme with - * checks at dup_mmap(), exec(), and other mmlist addition points - * could be used. The locking scheme was chosen on the basis of - * manfred's recommendations and having no core impact whatsoever. - * -- nyc - */ -DEFINE_SPINLOCK(pgd_lock); -struct page *pgd_list; - -static inline void pgd_list_add(pgd_t *pgd) -{ - struct page *page = virt_to_page(pgd); - page->index = (unsigned long) pgd_list; - if (pgd_list) - set_page_private(pgd_list, (unsigned long) &page->index); - pgd_list = page; - set_page_private(page, (unsigned long) &pgd_list); -} - -static inline void pgd_list_del(pgd_t *pgd) -{ - struct page *next, **pprev, *page = virt_to_page(pgd); - next = (struct page *) page->index; - pprev = (struct page **) page_private(page); - *pprev = next; - if (next) - set_page_private(next, (unsigned long) pprev); -} - -void pgd_ctor(void *pgd) -{ - unsigned long flags; - - if (PTRS_PER_PMD == 1) - spin_lock_irqsave(&pgd_lock, flags); - - memcpy((pgd_t *)pgd + USER_PTRS_PER_PGD, - swapper_pg_dir + USER_PTRS_PER_PGD, - (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t)); - - if (PTRS_PER_PMD > 1) - return; - - pgd_list_add(pgd); - spin_unlock_irqrestore(&pgd_lock, flags); - memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t)); -} - -/* never called when PTRS_PER_PMD > 1 */ -void pgd_dtor(void *pgd) -{ - unsigned long flags; /* can be called from interrupt context */ - - spin_lock_irqsave(&pgd_lock, flags); - pgd_list_del(pgd); - spin_unlock_irqrestore(&pgd_lock, flags); -} - -pgd_t *pgd_alloc(struct mm_struct *mm) -{ - return quicklist_alloc(0, GFP_KERNEL, pgd_ctor); -} - -void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - quicklist_free(0, pgd_dtor, pgd); -} - -void __init pgtable_cache_init(void) -{ -} - -void check_pgt_cache(void) -{ - quicklist_trim(0, pgd_dtor, 25, 16); -} diff --git a/arch/mn10300/mm/tlb-mn10300.S b/arch/mn10300/mm/tlb-mn10300.S deleted file mode 100644 index b9940177d81b..000000000000 --- a/arch/mn10300/mm/tlb-mn10300.S +++ /dev/null @@ -1,220 +0,0 @@ -############################################################################### -# -# TLB loading functions -# -# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd. -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Modified by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/intctl-regs.h> -#include <asm/frame.inc> -#include <asm/page.h> -#include <asm/pgtable.h> - -############################################################################### -# -# Instruction TLB Miss handler entry point -# -############################################################################### - .type itlb_miss,@function -ENTRY(itlb_miss) -#ifdef CONFIG_GDBSTUB - movm [d2,d3,a2],(sp) -#else - or EPSW_nAR,epsw # switch D0-D3 & A0-A3 to the alternate - # register bank - nop - nop - nop -#endif - -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d2 - mov d2,(MMUCTR) -#endif - - and ~EPSW_NMID,epsw - mov (IPTEU),d3 - mov (PTBR),a2 - mov d3,d2 - and 0xffc00000,d2 - lsr 20,d2 - mov (a2,d2),a2 # PTD *ptd = PGD[addr 31..22] - btst _PAGE_VALID,a2 - beq itlb_miss_fault # jump if doesn't point anywhere - - and ~(PAGE_SIZE-1),a2 - mov d3,d2 - and 0x003ff000,d2 - lsr 10,d2 - add d2,a2 - mov (a2),d2 # get pte from PTD[addr 21..12] - btst _PAGE_VALID,d2 - beq itlb_miss_fault # jump if doesn't point to a page - # (might be a swap id) -#if ((_PAGE_ACCESSED & 0xffffff00) == 0) - bset _PAGE_ACCESSED,(0,a2) -#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0) - bset +(_PAGE_ACCESSED >> 8),(1,a2) -#else -#error "_PAGE_ACCESSED value is out of range" -#endif - and ~xPTEL2_UNUSED1,d2 -itlb_miss_set: - mov d2,(IPTEL2) # change the TLB -#ifdef CONFIG_GDBSTUB - movm (sp),[d2,d3,a2] -#endif - rti - -itlb_miss_fault: - mov _PAGE_VALID,d2 # force address error handler to be - # invoked - bra itlb_miss_set - - .size itlb_miss, . - itlb_miss - -############################################################################### -# -# Data TLB Miss handler entry point -# -############################################################################### - .type dtlb_miss,@function -ENTRY(dtlb_miss) -#ifdef CONFIG_GDBSTUB - movm [d2,d3,a2],(sp) -#else - or EPSW_nAR,epsw # switch D0-D3 & A0-A3 to the alternate - # register bank - nop - nop - nop -#endif - -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d2 - mov d2,(MMUCTR) -#endif - - and ~EPSW_NMID,epsw - mov (DPTEU),d3 - mov (PTBR),a2 - mov d3,d2 - and 0xffc00000,d2 - lsr 20,d2 - mov (a2,d2),a2 # PTD *ptd = PGD[addr 31..22] - btst _PAGE_VALID,a2 - beq dtlb_miss_fault # jump if doesn't point anywhere - - and ~(PAGE_SIZE-1),a2 - mov d3,d2 - and 0x003ff000,d2 - lsr 10,d2 - add d2,a2 - mov (a2),d2 # get pte from PTD[addr 21..12] - btst _PAGE_VALID,d2 - beq dtlb_miss_fault # jump if doesn't point to a page - # (might be a swap id) -#if ((_PAGE_ACCESSED & 0xffffff00) == 0) - bset _PAGE_ACCESSED,(0,a2) -#elif ((_PAGE_ACCESSED & 0xffff00ff) == 0) - bset +(_PAGE_ACCESSED >> 8),(1,a2) -#else -#error "_PAGE_ACCESSED value is out of range" -#endif - and ~xPTEL2_UNUSED1,d2 -dtlb_miss_set: - mov d2,(DPTEL2) # change the TLB -#ifdef CONFIG_GDBSTUB - movm (sp),[d2,d3,a2] -#endif - rti - -dtlb_miss_fault: - mov _PAGE_VALID,d2 # force address error handler to be - # invoked - bra dtlb_miss_set - .size dtlb_miss, . - dtlb_miss - -############################################################################### -# -# Instruction TLB Address Error handler entry point -# -############################################################################### - .type itlb_aerror,@function -ENTRY(itlb_aerror) - add -4,sp - SAVE_ALL - -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d1 - mov d1,(MMUCTR) -#endif - - and ~EPSW_NMID,epsw - add -4,sp # need to pass three params - - # calculate the fault code - movhu (MMUFCR_IFC),d1 - or 0x00010000,d1 # it's an instruction fetch - - # determine the page address - mov (IPTEU),d0 - and PAGE_MASK,d0 - mov d0,(12,sp) - - clr d0 - mov d0,(IPTEL2) - - or EPSW_IE,epsw - mov fp,d0 - call do_page_fault[],0 # do_page_fault(regs,code,addr - - jmp ret_from_exception - .size itlb_aerror, . - itlb_aerror - -############################################################################### -# -# Data TLB Address Error handler entry point -# -############################################################################### - .type dtlb_aerror,@function -ENTRY(dtlb_aerror) - add -4,sp - SAVE_ALL - -#if defined(CONFIG_ERRATUM_NEED_TO_RELOAD_MMUCTR) - mov (MMUCTR),d1 - mov d1,(MMUCTR) -#endif - - add -4,sp # need to pass three params - and ~EPSW_NMID,epsw - - # calculate the fault code - movhu (MMUFCR_DFC),d1 - - # determine the page address - mov (DPTEU),a2 - mov a2,d0 - and PAGE_MASK,d0 - mov d0,(12,sp) - - clr d0 - mov d0,(DPTEL2) - - or EPSW_IE,epsw - mov fp,d0 - call do_page_fault[],0 # do_page_fault(regs,code,addr - - jmp ret_from_exception - .size dtlb_aerror, . - dtlb_aerror diff --git a/arch/mn10300/mm/tlb-smp.c b/arch/mn10300/mm/tlb-smp.c deleted file mode 100644 index 085f2bb691ac..000000000000 --- a/arch/mn10300/mm/tlb-smp.c +++ /dev/null @@ -1,213 +0,0 @@ -/* SMP TLB support routines. - * - * Copyright (C) 2006-2008 Panasonic Corporation - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/jiffies.h> -#include <linux/cpumask.h> -#include <linux/err.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/sched/mm.h> -#include <linux/profile.h> -#include <linux/smp.h> -#include <asm/tlbflush.h> -#include <asm/bitops.h> -#include <asm/processor.h> -#include <asm/bug.h> -#include <asm/exceptions.h> -#include <asm/hardirq.h> -#include <asm/fpu.h> -#include <asm/mmu_context.h> -#include <asm/thread_info.h> -#include <asm/cpu-regs.h> -#include <asm/intctl-regs.h> - -/* - * For flush TLB - */ -#define FLUSH_ALL 0xffffffff - -static cpumask_t flush_cpumask; -static struct mm_struct *flush_mm; -static unsigned long flush_va; -static DEFINE_SPINLOCK(tlbstate_lock); - -DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) = { - &init_mm, 0 -}; - -static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, - unsigned long va); -static void do_flush_tlb_all(void *info); - -/** - * smp_flush_tlb - Callback to invalidate the TLB. - * @unused: Callback context (ignored). - */ -void smp_flush_tlb(void *unused) -{ - unsigned long cpu_id; - - cpu_id = get_cpu(); - - if (!cpumask_test_cpu(cpu_id, &flush_cpumask)) - /* This was a BUG() but until someone can quote me the line - * from the intel manual that guarantees an IPI to multiple - * CPUs is retried _only_ on the erroring CPUs its staying as a - * return - * - * BUG(); - */ - goto out; - - if (flush_va == FLUSH_ALL) - local_flush_tlb(); - else - local_flush_tlb_page(flush_mm, flush_va); - - smp_mb__before_atomic(); - cpumask_clear_cpu(cpu_id, &flush_cpumask); - smp_mb__after_atomic(); -out: - put_cpu(); -} - -/** - * flush_tlb_others - Tell the specified CPUs to invalidate their TLBs - * @cpumask: The list of CPUs to target. - * @mm: The VM context to flush from (if va!=FLUSH_ALL). - * @va: Virtual address to flush or FLUSH_ALL to flush everything. - */ -static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, - unsigned long va) -{ - cpumask_t tmp; - - /* A couple of sanity checks (to be removed): - * - mask must not be empty - * - current CPU must not be in mask - * - we do not send IPIs to as-yet unbooted CPUs. - */ - BUG_ON(!mm); - BUG_ON(cpumask_empty(&cpumask)); - BUG_ON(cpumask_test_cpu(smp_processor_id(), &cpumask)); - - cpumask_and(&tmp, &cpumask, cpu_online_mask); - BUG_ON(!cpumask_equal(&cpumask, &tmp)); - - /* I'm not happy about this global shared spinlock in the MM hot path, - * but we'll see how contended it is. - * - * Temporarily this turns IRQs off, so that lockups are detected by the - * NMI watchdog. - */ - spin_lock(&tlbstate_lock); - - flush_mm = mm; - flush_va = va; -#if NR_CPUS <= BITS_PER_LONG - atomic_or(cpumask.bits[0], (atomic_t *)&flush_cpumask.bits[0]); -#else -#error Not supported. -#endif - - /* FIXME: if NR_CPUS>=3, change send_IPI_mask */ - smp_call_function(smp_flush_tlb, NULL, 1); - - while (!cpumask_empty(&flush_cpumask)) - /* Lockup detection does not belong here */ - smp_mb(); - - flush_mm = NULL; - flush_va = 0; - spin_unlock(&tlbstate_lock); -} - -/** - * flush_tlb_mm - Invalidate TLB of specified VM context - * @mm: The VM context to invalidate. - */ -void flush_tlb_mm(struct mm_struct *mm) -{ - cpumask_t cpu_mask; - - preempt_disable(); - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - - local_flush_tlb(); - if (!cpumask_empty(&cpu_mask)) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); - - preempt_enable(); -} - -/** - * flush_tlb_current_task - Invalidate TLB of current task - */ -void flush_tlb_current_task(void) -{ - struct mm_struct *mm = current->mm; - cpumask_t cpu_mask; - - preempt_disable(); - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - - local_flush_tlb(); - if (!cpumask_empty(&cpu_mask)) - flush_tlb_others(cpu_mask, mm, FLUSH_ALL); - - preempt_enable(); -} - -/** - * flush_tlb_page - Invalidate TLB of page - * @vma: The VM context to invalidate the page for. - * @va: The virtual address of the page to invalidate. - */ -void flush_tlb_page(struct vm_area_struct *vma, unsigned long va) -{ - struct mm_struct *mm = vma->vm_mm; - cpumask_t cpu_mask; - - preempt_disable(); - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - - local_flush_tlb_page(mm, va); - if (!cpumask_empty(&cpu_mask)) - flush_tlb_others(cpu_mask, mm, va); - - preempt_enable(); -} - -/** - * do_flush_tlb_all - Callback to completely invalidate a TLB - * @unused: Callback context (ignored). - */ -static void do_flush_tlb_all(void *unused) -{ - local_flush_tlb_all(); -} - -/** - * flush_tlb_all - Completely invalidate TLBs on all CPUs - */ -void flush_tlb_all(void) -{ - on_each_cpu(do_flush_tlb_all, 0, 1); -} diff --git a/arch/mn10300/oprofile/Makefile b/arch/mn10300/oprofile/Makefile deleted file mode 100644 index 9fa95aaf496b..000000000000 --- a/arch/mn10300/oprofile/Makefile +++ /dev/null @@ -1,14 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Makefile for the MN10300-specific profiling code -# -obj-$(CONFIG_OPROFILE) += oprofile.o - -DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ - oprof.o cpu_buffer.o buffer_sync.o \ - event_buffer.o oprofile_files.o \ - oprofilefs.o oprofile_stats.o \ - timer_int.o ) - -oprofile-y := $(DRIVER_OBJS) op_model_null.o - diff --git a/arch/mn10300/oprofile/op_model_null.c b/arch/mn10300/oprofile/op_model_null.c deleted file mode 100644 index cd4ab374bc4f..000000000000 --- a/arch/mn10300/oprofile/op_model_null.c +++ /dev/null @@ -1,22 +0,0 @@ -/* Null profiling driver - * - * Copyright (C) 2003 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * Licence. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/kernel.h> -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/errno.h> - -int __init oprofile_arch_init(struct oprofile_operations *ops) -{ - return -ENODEV; -} - -void oprofile_arch_exit(void) -{ -} - diff --git a/arch/mn10300/proc-mn103e010/Makefile b/arch/mn10300/proc-mn103e010/Makefile deleted file mode 100644 index ac2c9784cd21..000000000000 --- a/arch/mn10300/proc-mn103e010/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the MN103E010 processor chip specific code -# -obj-y := proc-init.o - diff --git a/arch/mn10300/proc-mn103e010/include/proc/cache.h b/arch/mn10300/proc-mn103e010/include/proc/cache.h deleted file mode 100644 index 967d144f307e..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/cache.h +++ /dev/null @@ -1,43 +0,0 @@ -/* MN103E010 Cache specification - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PROC_CACHE_H -#define _ASM_PROC_CACHE_H - -/* L1 cache */ - -#define L1_CACHE_NWAYS 4 /* number of ways in caches */ -#define L1_CACHE_NENTRIES 256 /* number of entries in each way */ -#define L1_CACHE_BYTES 16 /* bytes per entry */ -#define L1_CACHE_SHIFT 4 /* shift for bytes per entry */ -#define L1_CACHE_WAYDISP 0x1000 /* displacement of one way from the next */ - -#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ -#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */ -#define L1_CACHE_TAG_ENTRY 0x00000ff0 /* cache tag entry address mask */ -#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */ -#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY) - -/* - * specification of the interval between interrupt checking intervals whilst - * managing the cache with the interrupts disabled - */ -#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4 - -/* - * The size of range at which it becomes more economical to just flush the - * whole cache rather than trying to flush the specified range. - */ -#define MN10300_DCACHE_FLUSH_BORDER \ - +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) -#define MN10300_DCACHE_FLUSH_INV_BORDER \ - +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) - -#endif /* _ASM_PROC_CACHE_H */ diff --git a/arch/mn10300/proc-mn103e010/include/proc/clock.h b/arch/mn10300/proc-mn103e010/include/proc/clock.h deleted file mode 100644 index 704a819f1f4b..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/clock.h +++ /dev/null @@ -1,16 +0,0 @@ -/* MN103E010-specific clocks - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_PROC_CLOCK_H -#define _ASM_PROC_CLOCK_H - -#include <unit/clock.h> - -#endif /* _ASM_PROC_CLOCK_H */ diff --git a/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h b/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h deleted file mode 100644 index d72d328d1f9c..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/dmactl-regs.h +++ /dev/null @@ -1,102 +0,0 @@ -/* MN103E010 on-board DMA controller registers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_PROC_DMACTL_REGS_H -#define _ASM_PROC_DMACTL_REGS_H - -#include <asm/cpu-regs.h> - -#ifdef __KERNEL__ - -/* DMA registers */ -#define DMxCTR(N) __SYSREG(0xd2000000 + ((N) * 0x100), u32) /* control reg */ -#define DMxCTR_BG 0x0000001f /* transfer request source */ -#define DMxCTR_BG_SOFT 0x00000000 /* - software source */ -#define DMxCTR_BG_SC0TX 0x00000002 /* - serial port 0 transmission */ -#define DMxCTR_BG_SC0RX 0x00000003 /* - serial port 0 reception */ -#define DMxCTR_BG_SC1TX 0x00000004 /* - serial port 1 transmission */ -#define DMxCTR_BG_SC1RX 0x00000005 /* - serial port 1 reception */ -#define DMxCTR_BG_SC2TX 0x00000006 /* - serial port 2 transmission */ -#define DMxCTR_BG_SC2RX 0x00000007 /* - serial port 2 reception */ -#define DMxCTR_BG_TM0UFLOW 0x00000008 /* - timer 0 underflow */ -#define DMxCTR_BG_TM1UFLOW 0x00000009 /* - timer 1 underflow */ -#define DMxCTR_BG_TM2UFLOW 0x0000000a /* - timer 2 underflow */ -#define DMxCTR_BG_TM3UFLOW 0x0000000b /* - timer 3 underflow */ -#define DMxCTR_BG_TM6ACMPCAP 0x0000000c /* - timer 6A compare/capture */ -#define DMxCTR_BG_AFE 0x0000000d /* - analogue front-end interrupt source */ -#define DMxCTR_BG_ADC 0x0000000e /* - A/D conversion end interrupt source */ -#define DMxCTR_BG_IRDA 0x0000000f /* - IrDA interrupt source */ -#define DMxCTR_BG_RTC 0x00000010 /* - RTC interrupt source */ -#define DMxCTR_BG_XIRQ0 0x00000011 /* - XIRQ0 pin interrupt source */ -#define DMxCTR_BG_XIRQ1 0x00000012 /* - XIRQ1 pin interrupt source */ -#define DMxCTR_BG_XDMR0 0x00000013 /* - external request 0 source (XDMR0 pin) */ -#define DMxCTR_BG_XDMR1 0x00000014 /* - external request 1 source (XDMR1 pin) */ -#define DMxCTR_SAM 0x000000e0 /* DMA transfer src addr mode */ -#define DMxCTR_SAM_INCR 0x00000000 /* - increment */ -#define DMxCTR_SAM_DECR 0x00000020 /* - decrement */ -#define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */ -#define DMxCTR_DAM 0x00000000 /* DMA transfer dest addr mode */ -#define DMxCTR_DAM_INCR 0x00000000 /* - increment */ -#define DMxCTR_DAM_DECR 0x00000100 /* - decrement */ -#define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */ -#define DMxCTR_TM 0x00001800 /* DMA transfer mode */ -#define DMxCTR_TM_BATCH 0x00000000 /* - batch transfer */ -#define DMxCTR_TM_INTERM 0x00001000 /* - intermittent transfer */ -#define DMxCTR_UT 0x00006000 /* DMA transfer unit */ -#define DMxCTR_UT_1 0x00000000 /* - 1 byte */ -#define DMxCTR_UT_2 0x00002000 /* - 2 byte */ -#define DMxCTR_UT_4 0x00004000 /* - 4 byte */ -#define DMxCTR_UT_16 0x00006000 /* - 16 byte */ -#define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */ -#define DMxCTR_RQM 0x00060000 /* external request input source mode */ -#define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */ -#define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */ -#define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */ -#define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */ -#define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */ -#define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */ - -#define DMxSRC(N) __SYSREG(0xd2000004 + ((N) * 0x100), u32) /* control reg */ - -#define DMxDST(N) __SYSREG(0xd2000008 + ((N) * 0x100), u32) /* src addr reg */ - -#define DMxSIZ(N) __SYSREG(0xd200000c + ((N) * 0x100), u32) /* dest addr reg */ -#define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */ - -#define DMxCYC(N) __SYSREG(0xd2000010 + ((N) * 0x100), u32) /* intermittent - * size reg */ -#define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */ - -#define DM0IRQ 16 /* DMA channel 0 complete IRQ */ -#define DM1IRQ 17 /* DMA channel 1 complete IRQ */ -#define DM2IRQ 18 /* DMA channel 2 complete IRQ */ -#define DM3IRQ 19 /* DMA channel 3 complete IRQ */ - -#define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */ -#define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */ -#define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */ -#define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */ - -#ifndef __ASSEMBLY__ - -struct mn10300_dmactl_regs { - u32 ctr; - const void *src; - void *dst; - u32 siz; - u32 cyc; -} __attribute__((aligned(0x100))); - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PROC_DMACTL_REGS_H */ diff --git a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h b/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h deleted file mode 100644 index 516afe824055..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_PROC_INTCTL_REGS_H -#define _ASM_PROC_INTCTL_REGS_H - -#ifndef _ASM_INTCTL_REGS_H -# error "please don't include this file directly" -#endif - -/* intr acceptance group reg */ -#define IAGR __SYSREG(0xd4000100, u16) - -/* group number register */ -#define IAGR_GN 0x00fc - -#define __GET_XIRQ_TRIGGER(X, Z) (((Z) >> ((X) * 2)) & 3) - -#define __SET_XIRQ_TRIGGER(X, Y, Z) \ -({ \ - typeof(Z) x = (Z); \ - x &= ~(3 << ((X) * 2)); \ - x |= ((Y) & 3) << ((X) * 2); \ - (Z) = x; \ -}) - -/* external pin intr spec reg */ -#define EXTMD __SYSREG(0xd4000200, u16) -#define GET_XIRQ_TRIGGER(X) __GET_XIRQ_TRIGGER(X, EXTMD) -#define SET_XIRQ_TRIGGER(X, Y) __SET_XIRQ_TRIGGER(X, Y, EXTMD) - -#endif /* _ASM_PROC_INTCTL_REGS_H */ diff --git a/arch/mn10300/proc-mn103e010/include/proc/irq.h b/arch/mn10300/proc-mn103e010/include/proc/irq.h deleted file mode 100644 index aa6ee8f98b1b..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/irq.h +++ /dev/null @@ -1,34 +0,0 @@ -/* MN103E010 On-board interrupt controller numbers - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_PROC_IRQ_H -#define _ASM_PROC_IRQ_H - -#ifdef __KERNEL__ - -#define GxICR_NUM_IRQS 42 - -#define GxICR_NUM_XIRQS 8 - -#define XIRQ0 34 -#define XIRQ1 35 -#define XIRQ2 36 -#define XIRQ3 37 -#define XIRQ4 38 -#define XIRQ5 39 -#define XIRQ6 40 -#define XIRQ7 41 - -#define XIRQ2IRQ(num) (XIRQ0 + num) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PROC_IRQ_H */ diff --git a/arch/mn10300/proc-mn103e010/include/proc/proc.h b/arch/mn10300/proc-mn103e010/include/proc/proc.h deleted file mode 100644 index 39c4f8e7d2d3..000000000000 --- a/arch/mn10300/proc-mn103e010/include/proc/proc.h +++ /dev/null @@ -1,18 +0,0 @@ -/* MN103E010 Processor description - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_PROC_PROC_H -#define _ASM_PROC_PROC_H - -#define PROCESSOR_VENDOR_NAME "Panasonic" -#define PROCESSOR_MODEL_NAME "mn103e010" - -#endif /* _ASM_PROC_PROC_H */ diff --git a/arch/mn10300/proc-mn103e010/proc-init.c b/arch/mn10300/proc-mn103e010/proc-init.c deleted file mode 100644 index 102d86a6ae56..000000000000 --- a/arch/mn10300/proc-mn103e010/proc-init.c +++ /dev/null @@ -1,115 +0,0 @@ -/* MN103E010 Processor initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/irq.h> -#include <asm/cacheflush.h> -#include <asm/fpu.h> -#include <asm/irq.h> -#include <asm/rtc.h> -#include <asm/busctl-regs.h> - -/* - * initialise the on-silicon processor peripherals - */ -asmlinkage void __init processor_init(void) -{ - int loop; - - /* set up the exception table first */ - for (loop = 0x000; loop < 0x400; loop += 8) - __set_intr_stub(loop, __common_exception); - - __set_intr_stub(EXCEP_ITLBMISS, itlb_miss); - __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss); - __set_intr_stub(EXCEP_IAERROR, itlb_aerror); - __set_intr_stub(EXCEP_DAERROR, dtlb_aerror); - __set_intr_stub(EXCEP_BUSERROR, raw_bus_error); - __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault); - __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled); - __set_intr_stub(EXCEP_SYSCALL0, system_call); - - __set_intr_stub(EXCEP_NMI, nmi_handler); - __set_intr_stub(EXCEP_WDT, nmi_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler); - - IVAR0 = EXCEP_IRQ_LEVEL0; - IVAR1 = EXCEP_IRQ_LEVEL1; - IVAR2 = EXCEP_IRQ_LEVEL2; - IVAR3 = EXCEP_IRQ_LEVEL3; - IVAR4 = EXCEP_IRQ_LEVEL4; - IVAR5 = EXCEP_IRQ_LEVEL5; - IVAR6 = EXCEP_IRQ_LEVEL6; - - mn10300_dcache_flush_inv(); - mn10300_icache_inv(); - - /* disable all interrupts and set to priority 6 (lowest) */ - for (loop = 0; loop < NR_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; - - /* clear the timers */ - TM0MD = 0; - TM1MD = 0; - TM2MD = 0; - TM3MD = 0; - TM4MD = 0; - TM5MD = 0; - TM6MD = 0; - TM6MDA = 0; - TM6MDB = 0; - TM7MD = 0; - TM8MD = 0; - TM9MD = 0; - TM10MD = 0; - TM11MD = 0; - - calibrate_clock(); -} - -/* - * determine the memory size and base from the memory controller regs - */ -void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size) -{ - unsigned long base, size; - - *mem_base = 0; - *mem_size = 0; - - base = SDBASE(0); - if (base & SDBASE_CE) { - size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; - size = ~size + 1; - base &= SDBASE_CBA; - - printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base); - *mem_size += size; - *mem_base = base; - } - - base = SDBASE(1); - if (base & SDBASE_CE) { - size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT; - size = ~size + 1; - base &= SDBASE_CBA; - - printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base); - *mem_size += size; - if (*mem_base == 0) - *mem_base = base; - } -} diff --git a/arch/mn10300/proc-mn2ws0050/Makefile b/arch/mn10300/proc-mn2ws0050/Makefile deleted file mode 100644 index d4ca13309a85..000000000000 --- a/arch/mn10300/proc-mn2ws0050/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the linux kernel. -# - -obj-y := proc-init.o diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h b/arch/mn10300/proc-mn2ws0050/include/proc/cache.h deleted file mode 100644 index bcb5df2d892f..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/cache.h +++ /dev/null @@ -1,49 +0,0 @@ -/* Cache specification - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 13-Nov-2006 MEI Add L1_CACHE_SHIFT_MAX definition. - * 29-Jul-2008 MEI Add define for MN10300_HAS_AREAPURGE_REG. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _ASM_PROC_CACHE_H -#define _ASM_PROC_CACHE_H - -/* - * L1 cache - */ -#define L1_CACHE_NWAYS 4 /* number of ways in caches */ -#define L1_CACHE_NENTRIES 128 /* number of entries in each way */ -#define L1_CACHE_BYTES 32 /* bytes per entry */ -#define L1_CACHE_SHIFT 5 /* shift for bytes per entry */ -#define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */ - -#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */ -#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */ -#define L1_CACHE_TAG_ENTRY 0x00000fe0 /* cache tag entry address mask */ -#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */ -#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY) - -/* - * specification of the interval between interrupt checking intervals whilst - * managing the cache with the interrupts disabled - */ -#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4 - -/* - * The size of range at which it becomes more economical to just flush the - * whole cache rather than trying to flush the specified range. - */ -#define MN10300_DCACHE_FLUSH_BORDER \ - +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) -#define MN10300_DCACHE_FLUSH_INV_BORDER \ - +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES) - -#endif /* _ASM_PROC_CACHE_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/clock.h b/arch/mn10300/proc-mn2ws0050/include/proc/clock.h deleted file mode 100644 index fe4c0a4a53a2..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/clock.h +++ /dev/null @@ -1,20 +0,0 @@ -/* clock.h: proc-specific clocks - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 23-Feb-2007 MEI Delete define for watchdog timer. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _ASM_PROC_CLOCK_H -#define _ASM_PROC_CLOCK_H - -#include <unit/clock.h> - -#endif /* _ASM_PROC_CLOCK_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/dmactl-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/dmactl-regs.h deleted file mode 100644 index 4c4319e241d1..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/dmactl-regs.h +++ /dev/null @@ -1,103 +0,0 @@ -/* MN2WS0050 on-board DMA controller registers - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - */ - -#ifndef _ASM_PROC_DMACTL_REGS_H -#define _ASM_PROC_DMACTL_REGS_H - -#include <asm/cpu-regs.h> - -#ifdef __KERNEL__ - -/* DMA registers */ -#define DMxCTR(N) __SYSREG(0xd4005000+(N*0x100), u32) /* control reg */ -#define DMxCTR_BG 0x0000001f /* transfer request source */ -#define DMxCTR_BG_SOFT 0x00000000 /* - software source */ -#define DMxCTR_BG_SC0TX 0x00000002 /* - serial port 0 transmission */ -#define DMxCTR_BG_SC0RX 0x00000003 /* - serial port 0 reception */ -#define DMxCTR_BG_SC1TX 0x00000004 /* - serial port 1 transmission */ -#define DMxCTR_BG_SC1RX 0x00000005 /* - serial port 1 reception */ -#define DMxCTR_BG_SC2TX 0x00000006 /* - serial port 2 transmission */ -#define DMxCTR_BG_SC2RX 0x00000007 /* - serial port 2 reception */ -#define DMxCTR_BG_TM0UFLOW 0x00000008 /* - timer 0 underflow */ -#define DMxCTR_BG_TM1UFLOW 0x00000009 /* - timer 1 underflow */ -#define DMxCTR_BG_TM2UFLOW 0x0000000a /* - timer 2 underflow */ -#define DMxCTR_BG_TM3UFLOW 0x0000000b /* - timer 3 underflow */ -#define DMxCTR_BG_TM6ACMPCAP 0x0000000c /* - timer 6A compare/capture */ -#define DMxCTR_BG_RYBY 0x0000000d /* - NAND Flash RY/BY request source */ -#define DMxCTR_BG_RMC 0x0000000e /* - remote controller output */ -#define DMxCTR_BG_XIRQ12 0x00000011 /* - XIRQ12 pin interrupt source */ -#define DMxCTR_BG_XIRQ13 0x00000012 /* - XIRQ13 pin interrupt source */ -#define DMxCTR_BG_TCK 0x00000014 /* - tick timer underflow */ -#define DMxCTR_BG_SC4TX 0x00000019 /* - serial port4 transmission */ -#define DMxCTR_BG_SC4RX 0x0000001a /* - serial port4 reception */ -#define DMxCTR_BG_SC5TX 0x0000001b /* - serial port5 transmission */ -#define DMxCTR_BG_SC5RX 0x0000001c /* - serial port5 reception */ -#define DMxCTR_BG_SC6TX 0x0000001d /* - serial port6 transmission */ -#define DMxCTR_BG_SC6RX 0x0000001e /* - serial port6 reception */ -#define DMxCTR_BG_TMSUFLOW 0x0000001f /* - timestamp timer underflow */ -#define DMxCTR_SAM 0x00000060 /* DMA transfer src addr mode */ -#define DMxCTR_SAM_INCR 0x00000000 /* - increment */ -#define DMxCTR_SAM_DECR 0x00000020 /* - decrement */ -#define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */ -#define DMxCTR_DAM 0x00000300 /* DMA transfer dest addr mode */ -#define DMxCTR_DAM_INCR 0x00000000 /* - increment */ -#define DMxCTR_DAM_DECR 0x00000100 /* - decrement */ -#define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */ -#define DMxCTR_UT 0x00006000 /* DMA transfer unit */ -#define DMxCTR_UT_1 0x00000000 /* - 1 byte */ -#define DMxCTR_UT_2 0x00002000 /* - 2 byte */ -#define DMxCTR_UT_4 0x00004000 /* - 4 byte */ -#define DMxCTR_UT_16 0x00006000 /* - 16 byte */ -#define DMxCTR_RRE 0x00008000 /* DMA round robin enable */ -#define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */ -#define DMxCTR_RQM 0x00060000 /* external request input source mode */ -#define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */ -#define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */ -#define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */ -#define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */ -#define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */ -#define DMxCTR_PERR 0x40000000 /* DMA transfer parameter error flag */ -#define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */ - -#define DMxSRC(N) __SYSREG(0xd4005004+(N*0x100), u32) /* control reg */ - -#define DMxDST(N) __SYSREG(0xd4005008+(N*0x100), u32) /* source addr reg */ - -#define DMxSIZ(N) __SYSREG(0xd400500c+(N*0x100), u32) /* dest addr reg */ -#define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */ - -#define DMxCYC(N) __SYSREG(0xd4005010+(N*0x100), u32) /* intermittent size reg */ -#define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */ - -#define DM0IRQ 16 /* DMA channel 0 complete IRQ */ -#define DM1IRQ 17 /* DMA channel 1 complete IRQ */ -#define DM2IRQ 18 /* DMA channel 2 complete IRQ */ -#define DM3IRQ 19 /* DMA channel 3 complete IRQ */ - -#define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */ -#define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */ -#define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */ -#define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */ - -#ifndef __ASSEMBLY__ - -struct mn10300_dmactl_regs { - u32 ctr; - const void *src; - void *dst; - u32 siz; - u32 cyc; -} __attribute__((aligned(0x100))); - -#endif /* __ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* _ASM_PROC_DMACTL_REGS_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h deleted file mode 100644 index 4d4084ea6694..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_PROC_INTCTL_REGS_H -#define _ASM_PROC_INTCTL_REGS_H - -#ifndef _ASM_INTCTL_REGS_H -# error "please don't include this file directly" -#endif - -/* intr acceptance group reg */ -#define IAGR __SYSREG(0xd4000100, u16) - -/* group number register */ -#define IAGR_GN 0x003fc - -#define __GET_XIRQ_TRIGGER(X, Z) (((Z) >> ((X) * 2)) & 3) - -#define __SET_XIRQ_TRIGGER(X, Y, Z) \ -({ \ - typeof(Z) x = (Z); \ - x &= ~(3 << ((X) * 2)); \ - x |= ((Y) & 3) << ((X) * 2); \ - (Z) = x; \ -}) - -/* external pin intr spec reg */ -#define EXTMD0 __SYSREG(0xd4000200, u32) -#define GET_XIRQ_TRIGGER(X) __GET_XIRQ_TRIGGER(X, EXTMD0) -#define SET_XIRQ_TRIGGER(X, Y) __SET_XIRQ_TRIGGER(X, Y, EXTMD0) - -#endif /* _ASM_PROC_INTCTL_REGS_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/irq.h b/arch/mn10300/proc-mn2ws0050/include/proc/irq.h deleted file mode 100644 index 37777a85ab6f..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/irq.h +++ /dev/null @@ -1,49 +0,0 @@ -/* MN2WS0050 on-board interrupt controller registers - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 13-Nov-2006 MEI Define extended IRQ number for SMP support. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _PROC_IRQ_H -#define _PROC_IRQ_H - -#ifdef __KERNEL__ - -#define GxICR_NUM_IRQS 163 -#ifdef CONFIG_SMP -#define GxICR_NUM_EXT_IRQS 197 -#endif /* CONFIG_SMP */ - -#define GxICR_NUM_XIRQS 16 - -#define XIRQ0 34 -#define XIRQ1 35 -#define XIRQ2 36 -#define XIRQ3 37 -#define XIRQ4 38 -#define XIRQ5 39 -#define XIRQ6 40 -#define XIRQ7 41 -#define XIRQ8 42 -#define XIRQ9 43 -#define XIRQ10 44 -#define XIRQ11 45 -#define XIRQ12 46 -#define XIRQ13 47 -#define XIRQ14 48 -#define XIRQ15 49 - -#define XIRQ2IRQ(num) (XIRQ0 + num) - -#endif /* __KERNEL__ */ - -#endif /* _PROC_IRQ_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/nand-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/nand-regs.h deleted file mode 100644 index 84448f3828b3..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/nand-regs.h +++ /dev/null @@ -1,120 +0,0 @@ -/* NAND flash interface register definitions - * - * Copyright (C) 2008-2009 Panasonic Corporation - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef _PROC_NAND_REGS_H_ -#define _PROC_NAND_REGS_H_ - -/* command register */ -#define FCOMMAND_0 __SYSREG(0xd8f00000, u8) /* fcommand[24:31] */ -#define FCOMMAND_1 __SYSREG(0xd8f00001, u8) /* fcommand[16:23] */ -#define FCOMMAND_2 __SYSREG(0xd8f00002, u8) /* fcommand[8:15] */ -#define FCOMMAND_3 __SYSREG(0xd8f00003, u8) /* fcommand[0:7] */ - -/* for dma 16 byte trans, use FCOMMAND2 register */ -#define FCOMMAND2_0 __SYSREG(0xd8f00110, u8) /* fcommand2[24:31] */ -#define FCOMMAND2_1 __SYSREG(0xd8f00111, u8) /* fcommand2[16:23] */ -#define FCOMMAND2_2 __SYSREG(0xd8f00112, u8) /* fcommand2[8:15] */ -#define FCOMMAND2_3 __SYSREG(0xd8f00113, u8) /* fcommand2[0:7] */ - -#define FCOMMAND_FIEN 0x80 /* nand flash I/F enable */ -#define FCOMMAND_BW_8BIT 0x00 /* 8bit bus width */ -#define FCOMMAND_BW_16BIT 0x40 /* 16bit bus width */ -#define FCOMMAND_BLOCKSZ_SMALL 0x00 /* small block */ -#define FCOMMAND_BLOCKSZ_LARGE 0x20 /* large block */ -#define FCOMMAND_DMASTART 0x10 /* dma start */ -#define FCOMMAND_RYBY 0x08 /* ready/busy flag */ -#define FCOMMAND_RYBYINTMSK 0x04 /* mask ready/busy interrupt */ -#define FCOMMAND_XFWP 0x02 /* write protect enable */ -#define FCOMMAND_XFCE 0x01 /* flash device disable */ -#define FCOMMAND_SEQKILL 0x10 /* stop seq-read */ -#define FCOMMAND_ANUM 0x07 /* address cycle */ -#define FCOMMAND_ANUM_NONE 0x00 /* address cycle none */ -#define FCOMMAND_ANUM_1CYC 0x01 /* address cycle 1cycle */ -#define FCOMMAND_ANUM_2CYC 0x02 /* address cycle 2cycle */ -#define FCOMMAND_ANUM_3CYC 0x03 /* address cycle 3cycle */ -#define FCOMMAND_ANUM_4CYC 0x04 /* address cycle 4cycle */ -#define FCOMMAND_ANUM_5CYC 0x05 /* address cycle 5cycle */ -#define FCOMMAND_FCMD_READ0 0x00 /* read1 command */ -#define FCOMMAND_FCMD_SEQIN 0x80 /* page program 1st command */ -#define FCOMMAND_FCMD_PAGEPROG 0x10 /* page program 2nd command */ -#define FCOMMAND_FCMD_RESET 0xff /* reset command */ -#define FCOMMAND_FCMD_ERASE1 0x60 /* erase 1st command */ -#define FCOMMAND_FCMD_ERASE2 0xd0 /* erase 2nd command */ -#define FCOMMAND_FCMD_STATUS 0x70 /* read status command */ -#define FCOMMAND_FCMD_READID 0x90 /* read id command */ -#define FCOMMAND_FCMD_READOOB 0x50 /* read3 command */ -/* address register */ -#define FADD __SYSREG(0xd8f00004, u32) -/* address register 2 */ -#define FADD2 __SYSREG(0xd8f00008, u32) -/* error judgement register */ -#define FJUDGE __SYSREG(0xd8f0000c, u32) -#define FJUDGE_NOERR 0x0 /* no error */ -#define FJUDGE_1BITERR 0x1 /* 1bit error in data area */ -#define FJUDGE_PARITYERR 0x2 /* parity error */ -#define FJUDGE_UNCORRECTABLE 0x3 /* uncorrectable error */ -#define FJUDGE_ERRJDG_MSK 0x3 /* mask of judgement result */ -/* 1st ECC store register */ -#define FECC11 __SYSREG(0xd8f00010, u32) -/* 2nd ECC store register */ -#define FECC12 __SYSREG(0xd8f00014, u32) -/* 3rd ECC store register */ -#define FECC21 __SYSREG(0xd8f00018, u32) -/* 4th ECC store register */ -#define FECC22 __SYSREG(0xd8f0001c, u32) -/* 5th ECC store register */ -#define FECC31 __SYSREG(0xd8f00020, u32) -/* 6th ECC store register */ -#define FECC32 __SYSREG(0xd8f00024, u32) -/* 7th ECC store register */ -#define FECC41 __SYSREG(0xd8f00028, u32) -/* 8th ECC store register */ -#define FECC42 __SYSREG(0xd8f0002c, u32) -/* data register */ -#define FDATA __SYSREG(0xd8f00030, u32) -/* access pulse register */ -#define FPWS __SYSREG(0xd8f00100, u32) -#define FPWS_PWS1W_2CLK 0x00000000 /* write pulse width 1clock */ -#define FPWS_PWS1W_3CLK 0x01000000 /* write pulse width 2clock */ -#define FPWS_PWS1W_4CLK 0x02000000 /* write pulse width 4clock */ -#define FPWS_PWS1W_5CLK 0x03000000 /* write pulse width 5clock */ -#define FPWS_PWS1W_6CLK 0x04000000 /* write pulse width 6clock */ -#define FPWS_PWS1W_7CLK 0x05000000 /* write pulse width 7clock */ -#define FPWS_PWS1W_8CLK 0x06000000 /* write pulse width 8clock */ -#define FPWS_PWS1R_3CLK 0x00010000 /* read pulse width 3clock */ -#define FPWS_PWS1R_4CLK 0x00020000 /* read pulse width 4clock */ -#define FPWS_PWS1R_5CLK 0x00030000 /* read pulse width 5clock */ -#define FPWS_PWS1R_6CLK 0x00040000 /* read pulse width 6clock */ -#define FPWS_PWS1R_7CLK 0x00050000 /* read pulse width 7clock */ -#define FPWS_PWS1R_8CLK 0x00060000 /* read pulse width 8clock */ -#define FPWS_PWS2W_2CLK 0x00000100 /* write pulse interval 2clock */ -#define FPWS_PWS2W_3CLK 0x00000200 /* write pulse interval 3clock */ -#define FPWS_PWS2W_4CLK 0x00000300 /* write pulse interval 4clock */ -#define FPWS_PWS2W_5CLK 0x00000400 /* write pulse interval 5clock */ -#define FPWS_PWS2W_6CLK 0x00000500 /* write pulse interval 6clock */ -#define FPWS_PWS2R_2CLK 0x00000001 /* read pulse interval 2clock */ -#define FPWS_PWS2R_3CLK 0x00000002 /* read pulse interval 3clock */ -#define FPWS_PWS2R_4CLK 0x00000003 /* read pulse interval 4clock */ -#define FPWS_PWS2R_5CLK 0x00000004 /* read pulse interval 5clock */ -#define FPWS_PWS2R_6CLK 0x00000005 /* read pulse interval 6clock */ -/* command register 2 */ -#define FCOMMAND2 __SYSREG(0xd8f00110, u32) -/* transfer frequency register */ -#define FNUM __SYSREG(0xd8f00114, u32) -#define FSDATA_ADDR 0xd8f00400 -/* active data register */ -#define FSDATA __SYSREG(FSDATA_ADDR, u32) - -#endif /* _PROC_NAND_REGS_H_ */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/proc.h b/arch/mn10300/proc-mn2ws0050/include/proc/proc.h deleted file mode 100644 index 90d5cadd05bd..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/proc.h +++ /dev/null @@ -1,18 +0,0 @@ -/* proc.h: MN2WS0050 processor description - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_PROC_PROC_H -#define _ASM_PROC_PROC_H - -#define PROCESSOR_VENDOR_NAME "Panasonic" -#define PROCESSOR_MODEL_NAME "mn2ws0050" - -#endif /* _ASM_PROC_PROC_H */ diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/smp-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/smp-regs.h deleted file mode 100644 index 22f277fbb4de..000000000000 --- a/arch/mn10300/proc-mn2ws0050/include/proc/smp-regs.h +++ /dev/null @@ -1,51 +0,0 @@ -/* MN10300/AM33v2 Microcontroller SMP registers - * - * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd. - * All Rights Reserved. - * Created: - * 13-Nov-2006 MEI Add extended cache and atomic operation register - * for SMP support. - * 23-Feb-2007 MEI Add define for gdbstub SMP. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_PROC_SMP_REGS_H -#define _ASM_PROC_SMP_REGS_H - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ -#include <linux/types.h> -#endif -#include <asm/cpu-regs.h> - -/* - * Reference to the interrupt controllers of other CPUs - */ -#define CROSS_ICR_CPU_SHIFT 16 - -#define CROSS_GxICR(X, CPU) __SYSREG(0xc4000000 + (X) * 4 + \ - ((X) >= 64 && (X) < 192) * 0xf00 + ((CPU) << CROSS_ICR_CPU_SHIFT), u16) -#define CROSS_GxICR_u8(X, CPU) __SYSREG(0xc4000000 + (X) * 4 + \ - (((X) >= 64) && ((X) < 192)) * 0xf00 + ((CPU) << CROSS_ICR_CPU_SHIFT), u8) - -/* CPU ID register */ -#define CPUID __SYSREGC(0xc0000054, u32) -#define CPUID_MASK 0x00000007 /* CPU ID mask */ - -/* extended cache control register */ -#define ECHCTR __SYSREG(0xc0000c20, u32) -#define ECHCTR_IBCM 0x00000001 /* instruction cache broad cast mask */ -#define ECHCTR_DBCM 0x00000002 /* data cache broad cast mask */ -#define ECHCTR_ISPM 0x00000004 /* instruction cache snoop mask */ -#define ECHCTR_DSPM 0x00000008 /* data cache snoop mask */ - -#define NMIAGR __SYSREG(0xd400013c, u16) -#define NMIAGR_GN 0x03fc - -#endif /* __KERNEL__ */ -#endif /* _ASM_PROC_SMP_REGS_H */ diff --git a/arch/mn10300/proc-mn2ws0050/proc-init.c b/arch/mn10300/proc-mn2ws0050/proc-init.c deleted file mode 100644 index 25b1b453c515..000000000000 --- a/arch/mn10300/proc-mn2ws0050/proc-init.c +++ /dev/null @@ -1,134 +0,0 @@ -/* MN2WS0050 processor initialisation - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/interrupt.h> - -#include <asm/cacheflush.h> -#include <asm/processor.h> -#include <linux/uaccess.h> -#include <asm/io.h> -#include <linux/atomic.h> -#include <asm/smp.h> -#include <asm/pgalloc.h> -#include <asm/busctl-regs.h> -#include <unit/timex.h> -#include <asm/fpu.h> -#include <asm/rtc.h> - -#define MEMCONF __SYSREGC(0xdf800400, u32) - -/* - * initialise the on-silicon processor peripherals - */ -asmlinkage void __init processor_init(void) -{ - int loop; - - /* set up the exception table first */ - for (loop = 0x000; loop < 0x400; loop += 8) - __set_intr_stub(loop, __common_exception); - - __set_intr_stub(EXCEP_ITLBMISS, itlb_miss); - __set_intr_stub(EXCEP_DTLBMISS, dtlb_miss); - __set_intr_stub(EXCEP_IAERROR, itlb_aerror); - __set_intr_stub(EXCEP_DAERROR, dtlb_aerror); - __set_intr_stub(EXCEP_BUSERROR, raw_bus_error); - __set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault); - __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled); - __set_intr_stub(EXCEP_SYSCALL0, system_call); - - __set_intr_stub(EXCEP_NMI, nmi_handler); - __set_intr_stub(EXCEP_WDT, nmi_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL0, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL1, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL2, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL3, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL4, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL5, irq_handler); - __set_intr_stub(EXCEP_IRQ_LEVEL6, irq_handler); - - IVAR0 = EXCEP_IRQ_LEVEL0; - IVAR1 = EXCEP_IRQ_LEVEL1; - IVAR2 = EXCEP_IRQ_LEVEL2; - IVAR3 = EXCEP_IRQ_LEVEL3; - IVAR4 = EXCEP_IRQ_LEVEL4; - IVAR5 = EXCEP_IRQ_LEVEL5; - IVAR6 = EXCEP_IRQ_LEVEL6; - -#ifndef CONFIG_MN10300_HAS_CACHE_SNOOP - mn10300_dcache_flush_inv(); - mn10300_icache_inv(); -#endif - - /* disable all interrupts and set to priority 6 (lowest) */ -#ifdef CONFIG_SMP - for (loop = 0; loop < GxICR_NUM_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; -#else /* !CONFIG_SMP */ - for (loop = 0; loop < NR_IRQS; loop++) - GxICR(loop) = GxICR_LEVEL_6 | GxICR_DETECT; -#endif /* !CONFIG_SMP */ - - /* clear the timers */ - TM0MD = 0; - TM1MD = 0; - TM2MD = 0; - TM3MD = 0; - TM4MD = 0; - TM5MD = 0; - TM6MD = 0; - TM6MDA = 0; - TM6MDB = 0; - TM7MD = 0; - TM8MD = 0; - TM9MD = 0; - TM10MD = 0; - TM11MD = 0; - TM12MD = 0; - TM13MD = 0; - TM14MD = 0; - TM15MD = 0; - - calibrate_clock(); -} - -/* - * determine the memory size and base from the memory controller regs - */ -void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size) -{ - unsigned long memconf = MEMCONF; - unsigned long size = 0; /* order: MByte */ - - *mem_base = 0x90000000; /* fixed address */ - - switch (memconf & 0x00000003) { - case 0x01: - size = 256 / 8; /* 256 Mbit per chip */ - break; - case 0x02: - size = 512 / 8; /* 512 Mbit per chip */ - break; - case 0x03: - size = 1024 / 8; /* 1 Gbit per chip */ - break; - default: - panic("Invalid SDRAM size"); - break; - } - - printk(KERN_INFO "DDR2-SDRAM: %luMB x 2 @%08lx\n", size, *mem_base); - - *mem_size = (size * 2) << 20; -} diff --git a/arch/mn10300/unit-asb2303/Makefile b/arch/mn10300/unit-asb2303/Makefile deleted file mode 100644 index 38a5bb43b0bb..000000000000 --- a/arch/mn10300/unit-asb2303/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -############################################################################### -# -# Makefile for the ASB2303 board -# -############################################################################### -obj-y := unit-init.o smc91111.o flash.o leds.o diff --git a/arch/mn10300/unit-asb2303/flash.c b/arch/mn10300/unit-asb2303/flash.c deleted file mode 100644 index b03d8738d67c..000000000000 --- a/arch/mn10300/unit-asb2303/flash.c +++ /dev/null @@ -1,99 +0,0 @@ -/* Handle mapping of the flash on the ASB2303 board - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/mtd/partitions.h> -#include <linux/mtd/physmap.h> - -#define ASB2303_PROM_ADDR 0xA0000000 /* Boot PROM */ -#define ASB2303_PROM_SIZE (2 * 1024 * 1024) -#define ASB2303_FLASH_ADDR 0xA4000000 /* System Flash */ -#define ASB2303_FLASH_SIZE (32 * 1024 * 1024) -#define ASB2303_CONFIG_ADDR 0xA6000000 /* System Config EEPROM */ -#define ASB2303_CONFIG_SIZE (8 * 1024) - -/* - * default MTD partition table for both main flash devices, expected to be - * overridden by RedBoot - */ -static struct mtd_partition asb2303_partitions[] = { - { - .name = "Bootloader", - .size = 0x00040000, - .offset = 0, - .mask_flags = MTD_CAP_ROM /* force read-only */ - }, { - .name = "Kernel", - .size = 0x00400000, - .offset = 0x00040000, - }, { - .name = "Filesystem", - .size = MTDPART_SIZ_FULL, - .offset = 0x00440000 - } -}; - -/* - * the ASB2303 Boot PROM definition - */ -static struct physmap_flash_data asb2303_bootprom_data = { - .width = 2, - .nr_parts = 1, - .parts = asb2303_partitions, -}; - -static struct resource asb2303_bootprom_resource = { - .start = ASB2303_PROM_ADDR, - .end = ASB2303_PROM_ADDR + ASB2303_PROM_SIZE, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device asb2303_bootprom = { - .name = "physmap-flash", - .id = 0, - .dev.platform_data = &asb2303_bootprom_data, - .num_resources = 1, - .resource = &asb2303_bootprom_resource, -}; - -/* - * the ASB2303 System Flash definition - */ -static struct physmap_flash_data asb2303_sysflash_data = { - .width = 4, - .nr_parts = 1, - .parts = asb2303_partitions, -}; - -static struct resource asb2303_sysflash_resource = { - .start = ASB2303_FLASH_ADDR, - .end = ASB2303_FLASH_ADDR + ASB2303_FLASH_SIZE, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device asb2303_sysflash = { - .name = "physmap-flash", - .id = 1, - .dev.platform_data = &asb2303_sysflash_data, - .num_resources = 1, - .resource = &asb2303_sysflash_resource, -}; - -/* - * register the ASB2303 flashes - */ -static int __init asb2303_mtd_init(void) -{ - platform_device_register(&asb2303_bootprom); - platform_device_register(&asb2303_sysflash); - return 0; -} -device_initcall(asb2303_mtd_init); diff --git a/arch/mn10300/unit-asb2303/include/unit/clock.h b/arch/mn10300/unit-asb2303/include/unit/clock.h deleted file mode 100644 index 0316907a012e..000000000000 --- a/arch/mn10300/unit-asb2303/include/unit/clock.h +++ /dev/null @@ -1,24 +0,0 @@ -/* ASB2303-specific clocks - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_CLOCK_H -#define _ASM_UNIT_CLOCK_H - -#ifndef __ASSEMBLY__ - -#define MN10300_IOCLK 33333333UL -/* #define MN10300_IOBCLK 66666666UL */ - -#endif /* !__ASSEMBLY__ */ - -#define MN10300_WDCLK MN10300_IOCLK - -#endif /* _ASM_UNIT_CLOCK_H */ diff --git a/arch/mn10300/unit-asb2303/include/unit/leds.h b/arch/mn10300/unit-asb2303/include/unit/leds.h deleted file mode 100644 index 3a7543ea7b5c..000000000000 --- a/arch/mn10300/unit-asb2303/include/unit/leds.h +++ /dev/null @@ -1,43 +0,0 @@ -/* ASB2303-specific LEDs - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_LEDS_H -#define _ASM_UNIT_LEDS_H - -#include <asm/pio-regs.h> -#include <asm/cpu-regs.h> -#include <asm/exceptions.h> - -#define ASB2303_GPIO0DEF __SYSREG(0xDB000000, u32) -#define ASB2303_7SEGLEDS __SYSREG(0xDB000008, u32) - -/* - * use the 7-segment LEDs to indicate states - */ - -/* flip the 7-segment LEDs between "G" and "-" */ -#define mn10300_set_gdbleds(ONOFF) \ -do { \ - ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f; \ -} while (0) - -/* indicate double-fault by displaying "d" on the LEDs */ -#define mn10300_set_dbfleds \ - mov 0x43,d0 ; \ - movbu d0,(ASB2303_7SEGLEDS) - -#ifndef __ASSEMBLY__ -extern void peripheral_leds_display_exception(enum exception_code code); -extern void peripheral_leds_led_chase(void); -extern void debug_to_serial(const char *p, int n); -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_UNIT_LEDS_H */ diff --git a/arch/mn10300/unit-asb2303/include/unit/serial.h b/arch/mn10300/unit-asb2303/include/unit/serial.h deleted file mode 100644 index 991e356bac5f..000000000000 --- a/arch/mn10300/unit-asb2303/include/unit/serial.h +++ /dev/null @@ -1,141 +0,0 @@ -/* ASB2303-specific 8250 serial ports - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_SERIAL_H -#define _ASM_UNIT_SERIAL_H - -#include <asm/cpu-regs.h> -#include <proc/irq.h> -#include <linux/serial_reg.h> - -#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000 -#define SERIAL_PORT1_BASE_ADDRESS 0xA6FC0000 - -#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */ - -/* - * The ASB2303 has an 18.432 MHz clock the UART - */ -#define BASE_BAUD (18432000 / 16) - -/* - * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports - */ -#ifndef CONFIG_GDBSTUB_ON_TTYSx - -#define SERIAL_PORT_DFNS \ - { \ - .baud_base = BASE_BAUD, \ - .irq = SERIAL_IRQ, \ - .flags = STD_COM_FLAGS, \ - .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \ - .iomem_reg_shift = 2, \ - .io_type = SERIAL_IO_MEM, \ - }, \ - { \ - .baud_base = BASE_BAUD, \ - .irq = SERIAL_IRQ, \ - .flags = STD_COM_FLAGS, \ - .iomem_base = (u8 *) SERIAL_PORT1_BASE_ADDRESS, \ - .iomem_reg_shift = 2, \ - .io_type = SERIAL_IO_MEM, \ - }, - -#ifndef __ASSEMBLY__ - -static inline void __debug_to_serial(const char *p, int n) -{ -} - -#endif /* !__ASSEMBLY__ */ - -#else /* CONFIG_GDBSTUB_ON_TTYSx */ - -#define SERIAL_PORT_DFNS /* both stolen by gdb-stub because they share an IRQ */ - -#if defined(CONFIG_GDBSTUB_ON_TTYS0) -#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8) -#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8) -#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8) -#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8) -#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8) -#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8) -#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8) -#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8) -#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8) -#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8) -#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8) -#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8) -#define GDBPORT_SERIAL_IRQ SERIAL_IRQ - -#elif defined(CONFIG_GDBSTUB_ON_TTYS1) -#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_RX * 4, u8) -#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_TX * 4, u8) -#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLL * 4, u8) -#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLM * 4, u8) -#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IER * 4, u8) -#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IIR * 4, u8) -#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_FCR * 4, u8) -#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LCR * 4, u8) -#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MCR * 4, u8) -#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LSR * 4, u8) -#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MSR * 4, u8) -#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_SCR * 4, u8) -#define GDBPORT_SERIAL_IRQ SERIAL_IRQ -#endif - -#ifndef __ASSEMBLY__ - -#define LSR_WAIT_FOR(STATE) \ -do { \ - while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) {} \ -} while (0) -#define FLOWCTL_WAIT_FOR(LINE) \ -do { \ - while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) {} \ -} while (0) -#define FLOWCTL_CLEAR(LINE) \ -do { \ - GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; \ -} while (0) -#define FLOWCTL_SET(LINE) \ -do { \ - GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; \ -} while (0) -#define FLOWCTL_QUERY(LINE) ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; }) - -static inline void __debug_to_serial(const char *p, int n) -{ - char ch; - - FLOWCTL_SET(DTR); - - for (; n > 0; n--) { - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - - ch = *p++; - if (ch == 0x0a) { - GDBPORT_SERIAL_TX = 0x0d; - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - } - GDBPORT_SERIAL_TX = ch; - } - - FLOWCTL_CLEAR(DTR); -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* CONFIG_GDBSTUB_ON_TTYSx */ - -#endif /* _ASM_UNIT_SERIAL_H */ diff --git a/arch/mn10300/unit-asb2303/include/unit/smc91111.h b/arch/mn10300/unit-asb2303/include/unit/smc91111.h deleted file mode 100644 index dd4e2946438e..000000000000 --- a/arch/mn10300/unit-asb2303/include/unit/smc91111.h +++ /dev/null @@ -1,50 +0,0 @@ -/* Support for the SMC91C111 NIC on an ASB2303 - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_SMC91111_H -#define _ASM_UNIT_SMC91111_H - -#include <asm/intctl-regs.h> - -#define SMC91111_BASE 0xAA000300UL -#define SMC91111_BASE_END 0xAA000400UL -#define SMC91111_IRQ XIRQ3 - -#define SMC_CAN_USE_8BIT 0 -#define SMC_CAN_USE_16BIT 1 -#define SMC_CAN_USE_32BIT 0 -#define SMC_NOWAIT 1 -#define SMC_IRQ_FLAGS (0) - -#if SMC_CAN_USE_8BIT -#define SMC_inb(a, r) inb((unsigned long) ((a) + (r))) -#define SMC_outb(v, a, r) outb(v, (unsigned long) ((a) + (r))) -#endif - -#if SMC_CAN_USE_16BIT -#define SMC_inw(a, r) inw((unsigned long) ((a) + (r))) -#define SMC_outw(lp, v, a, r) outw(v, (unsigned long) ((a) + (r))) -#define SMC_insw(a, r, p, l) insw((unsigned long) ((a) + (r)), (p), (l)) -#define SMC_outsw(a, r, p, l) outsw((unsigned long) ((a) + (r)), (p), (l)) -#endif - -#if SMC_CAN_USE_32BIT -#define SMC_inl(a, r) inl((unsigned long) ((a) + (r))) -#define SMC_outl(v, a, r) outl(v, (unsigned long) ((a) + (r))) -#define SMC_insl(a, r, p, l) insl((unsigned long) ((a) + (r)), (p), (l)) -#define SMC_outsl(a, r, p, l) outsl((unsigned long) ((a) + (r)), (p), (l)) -#endif - -#define RPC_LSA_DEFAULT RPC_LED_100_10 -#define RPC_LSB_DEFAULT RPC_LED_TX_RX - -#define set_irq_type(irq, type) - -#endif /* _ASM_UNIT_SMC91111_H */ diff --git a/arch/mn10300/unit-asb2303/include/unit/timex.h b/arch/mn10300/unit-asb2303/include/unit/timex.h deleted file mode 100644 index c37f9832cf17..000000000000 --- a/arch/mn10300/unit-asb2303/include/unit/timex.h +++ /dev/null @@ -1,146 +0,0 @@ -/* ASB2303-specific timer specifications - * - * Copyright (C) 2007, 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_TIMEX_H -#define _ASM_UNIT_TIMEX_H - -#include <asm/timer-regs.h> -#include <unit/clock.h> -#include <asm/param.h> - -/* - * jiffies counter specifications - */ - -#define TMJCBR_MAX 0xffff -#define TMJCIRQ TM1IRQ -#define TMJCICR TM1ICR - -#ifndef __ASSEMBLY__ - -#define MN10300_SRC_IOCLK MN10300_IOCLK - -#ifndef HZ -# error HZ undeclared. -#endif /* !HZ */ -/* use as little prescaling as possible to avoid losing accuracy */ -#if (MN10300_SRC_IOCLK + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 1 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK -#elif (MN10300_SRC_IOCLK / 8 + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 8 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_8 -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_8 -#elif (MN10300_SRC_IOCLK / 32 + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 32 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_32 -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_32 -#else -# error You lose. -#endif - -#define MN10300_JCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE) -#define MN10300_TSCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE) - -#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ) -#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ) - -static inline void stop_jiffies_counter(void) -{ - u16 tmp; - TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8; - tmp = TM01MD; -} - -static inline void reload_jiffies_counter(u32 cnt) -{ - u32 tmp; - - TM01BR = cnt; - tmp = TM01BR; - - TM01MD = JC_TIMER_CLKSRC | \ - TM1MD_SRC_TM0CASCADE << 8 | \ - TM0MD_INIT_COUNTER | \ - TM1MD_INIT_COUNTER << 8; - - - TM01MD = JC_TIMER_CLKSRC | \ - TM1MD_SRC_TM0CASCADE << 8 | \ - TM0MD_COUNT_ENABLE | \ - TM1MD_COUNT_ENABLE << 8; - - tmp = TM01MD; -} - -#endif /* !__ASSEMBLY__ */ - - -/* - * timestamp counter specifications - */ - -#define TMTSCBR_MAX 0xffffffff -#define TMTSCBC TM45BC - -#ifndef __ASSEMBLY__ - -static inline void startup_timestamp_counter(void) -{ - u32 t32; - - /* set up timer 4 & 5 cascaded as a 32-bit counter to count real time - * - count down from 4Gig-1 to 0 and wrap at IOCLK rate - */ - TM45BR = TMTSCBR_MAX; - t32 = TM45BR; - - TM4MD = TSC_TIMER_CLKSRC; - TM4MD |= TM4MD_INIT_COUNTER; - TM4MD &= ~TM4MD_INIT_COUNTER; - TM4ICR = 0; - t32 = TM4ICR; - - TM5MD = TM5MD_SRC_TM4CASCADE; - TM5MD |= TM5MD_INIT_COUNTER; - TM5MD &= ~TM5MD_INIT_COUNTER; - TM5ICR = 0; - t32 = TM5ICR; - - TM5MD |= TM5MD_COUNT_ENABLE; - TM4MD |= TM4MD_COUNT_ENABLE; - t32 = TM5MD; - t32 = TM4MD; -} - -static inline void shutdown_timestamp_counter(void) -{ - u8 t8; - TM4MD = 0; - TM5MD = 0; - t8 = TM4MD; - t8 = TM5MD; -} - -/* - * we use a cascaded pair of 16-bit down-counting timers to count I/O - * clock cycles for the purposes of time keeping - */ -typedef unsigned long cycles_t; - -static inline cycles_t read_timestamp_counter(void) -{ - return (cycles_t)~TMTSCBC; -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_UNIT_TIMEX_H */ diff --git a/arch/mn10300/unit-asb2303/leds.c b/arch/mn10300/unit-asb2303/leds.c deleted file mode 100644 index c03839357a14..000000000000 --- a/arch/mn10300/unit-asb2303/leds.c +++ /dev/null @@ -1,52 +0,0 @@ -/* ASB2303 peripheral 7-segment LEDs x1 support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> - -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <asm/rtc-regs.h> -#include <unit/leds.h> - -#if 0 -static const u8 asb2303_led_hex_tbl[16] = { - 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0, - 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c -}; -#endif - -static const u8 asb2303_led_chase_tbl[6] = { - ~0x02, /* top - segA */ - ~0x04, /* right top - segB */ - ~0x08, /* right bottom - segC */ - ~0x10, /* bottom - segD */ - ~0x20, /* left bottom - segE */ - ~0x40, /* left top - segF */ -}; - -static unsigned asb2303_led_chase; - -void peripheral_leds_display_exception(enum exception_code code) -{ - ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */ - ASB2303_7SEGLEDS = 0x6d; /* triple horizontal bar */ -} - -void peripheral_leds_led_chase(void) -{ - ASB2303_GPIO0DEF = 0x5555; /* configure as an output port */ - ASB2303_7SEGLEDS = asb2303_led_chase_tbl[asb2303_led_chase]; - asb2303_led_chase++; - if (asb2303_led_chase >= 6) - asb2303_led_chase = 0; -} diff --git a/arch/mn10300/unit-asb2303/smc91111.c b/arch/mn10300/unit-asb2303/smc91111.c deleted file mode 100644 index 53677694b165..000000000000 --- a/arch/mn10300/unit-asb2303/smc91111.c +++ /dev/null @@ -1,53 +0,0 @@ -/* ASB2303 initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/platform_device.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/timex.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <unit/smc91111.h> - -static struct resource smc91c111_resources[] = { - [0] = { - .start = SMC91111_BASE, - .end = SMC91111_BASE_END, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = SMC91111_IRQ, - .end = SMC91111_IRQ, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smc91c111_device = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(smc91c111_resources), - .resource = smc91c111_resources, -}; - -/* - * add platform devices - */ -static int __init unit_device_init(void) -{ - platform_device_register(&smc91c111_device); - return 0; -} - -device_initcall(unit_device_init); diff --git a/arch/mn10300/unit-asb2303/unit-init.c b/arch/mn10300/unit-asb2303/unit-init.c deleted file mode 100644 index 834a76aa551a..000000000000 --- a/arch/mn10300/unit-asb2303/unit-init.c +++ /dev/null @@ -1,68 +0,0 @@ -/* ASB2303 initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/device.h> - -#include <asm/io.h> -#include <asm/setup.h> -#include <asm/processor.h> -#include <asm/irq.h> -#include <asm/intctl-regs.h> - -/* - * initialise some of the unit hardware before gdbstub is set up - */ -asmlinkage void __init unit_init(void) -{ - /* set up the external interrupts */ - SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_HILEVEL); - SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL); - SET_XIRQ_TRIGGER(3, XIRQ_TRIGGER_HILEVEL); - SET_XIRQ_TRIGGER(4, XIRQ_TRIGGER_LOWLEVEL); - SET_XIRQ_TRIGGER(5, XIRQ_TRIGGER_LOWLEVEL); - -#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL - set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL)); -#endif - -#ifdef CONFIG_ETHERNET_IRQ_LEVEL - set_intr_level(XIRQ3, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL)); -#endif -} - -/* - * initialise the rest of the unit hardware after gdbstub is ready - */ -void __init unit_setup(void) -{ -} - -/* - * initialise the external interrupts used by a unit of this type - */ -void __init unit_init_IRQ(void) -{ - unsigned int extnum; - - for (extnum = 0; extnum < NR_XIRQS; extnum++) { - switch (GET_XIRQ_TRIGGER(extnum)) { - case XIRQ_TRIGGER_HILEVEL: - case XIRQ_TRIGGER_LOWLEVEL: - mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum)); - break; - default: - break; - } - } -} diff --git a/arch/mn10300/unit-asb2305/Makefile b/arch/mn10300/unit-asb2305/Makefile deleted file mode 100644 index cbc5abaa939a..000000000000 --- a/arch/mn10300/unit-asb2305/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -############################################################################### -# -# Makefile for the ASB2305 board -# -############################################################################### -obj-y := unit-init.o leds.o - -obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o diff --git a/arch/mn10300/unit-asb2305/include/unit/clock.h b/arch/mn10300/unit-asb2305/include/unit/clock.h deleted file mode 100644 index 29e3425431cf..000000000000 --- a/arch/mn10300/unit-asb2305/include/unit/clock.h +++ /dev/null @@ -1,24 +0,0 @@ -/* ASB2305-specific clocks - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_CLOCK_H -#define _ASM_UNIT_CLOCK_H - -#ifndef __ASSEMBLY__ - -#define MN10300_IOCLK 33333333UL -/* #define MN10300_IOBCLK 66666666UL */ - -#endif /* !__ASSEMBLY__ */ - -#define MN10300_WDCLK MN10300_IOCLK - -#endif /* _ASM_UNIT_CLOCK_H */ diff --git a/arch/mn10300/unit-asb2305/include/unit/leds.h b/arch/mn10300/unit-asb2305/include/unit/leds.h deleted file mode 100644 index bc471f617fd1..000000000000 --- a/arch/mn10300/unit-asb2305/include/unit/leds.h +++ /dev/null @@ -1,51 +0,0 @@ -/* ASB2305-specific LEDs - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_LEDS_H -#define _ASM_UNIT_LEDS_H - -#include <asm/pio-regs.h> -#include <asm/cpu-regs.h> -#include <asm/exceptions.h> - -#define ASB2305_7SEGLEDS __SYSREG(0xA6F90000, u32) - -/* perform a hard reset by driving PIO06 low */ -#define mn10300_unit_hard_reset() \ -do { \ - P0OUT &= 0xbf; \ - P0MD = (P0MD & P0MD_6) | P0MD_6_OUT; \ -} while (0) - -/* - * use the 7-segment LEDs to indicate states - */ -/* indicate double-fault by displaying "db-f" on the LEDs */ -#define mn10300_set_dbfleds \ - mov 0x43077f1d,d0 ; \ - mov d0,(ASB2305_7SEGLEDS) - -/* flip the 7-segment LEDs between "Gdb-" and "----" */ -#define mn10300_set_gdbleds(ONOFF) \ -do { \ - ASB2305_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \ -} while (0) - -#ifndef __ASSEMBLY__ -extern void peripheral_leds_display_exception(enum exception_code); -extern void peripheral_leds_led_chase(void); -extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int); -extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int); -extern void peripheral_leds7x4_display_minssecs(unsigned int, unsigned int); -extern void peripheral_leds7x4_display_rtc(void); -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_UNIT_LEDS_H */ diff --git a/arch/mn10300/unit-asb2305/include/unit/serial.h b/arch/mn10300/unit-asb2305/include/unit/serial.h deleted file mode 100644 index 88c08219315f..000000000000 --- a/arch/mn10300/unit-asb2305/include/unit/serial.h +++ /dev/null @@ -1,125 +0,0 @@ -/* ASB2305-specific 8250 serial ports - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_SERIAL_H -#define _ASM_UNIT_SERIAL_H - -#include <asm/cpu-regs.h> -#include <proc/irq.h> -#include <linux/serial_reg.h> - -#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000 -#define ASB2305_DEBUG_MCR __SYSREG(0xA6FB0000 + UART_MCR * 2, u8) - -#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */ - -/* - * The ASB2305 has an 18.432 MHz clock the UART - */ -#define BASE_BAUD (18432000 / 16) - -/* - * dispose of the /dev/ttyS0 serial port - */ -#ifndef CONFIG_GDBSTUB_ON_TTYSx - -#define SERIAL_PORT_DFNS \ - { \ - .baud_base = BASE_BAUD, \ - .irq = SERIAL_IRQ, \ - .flags = STD_COM_FLAGS, \ - .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \ - .iomem_reg_shift = 2, \ - .io_type = SERIAL_IO_MEM, \ - }, - -#ifndef __ASSEMBLY__ - -static inline void __debug_to_serial(const char *p, int n) -{ -} - -#endif /* !__ASSEMBLY__ */ - -#else /* CONFIG_GDBSTUB_ON_TTYSx */ - -#define SERIAL_PORT_DFNS /* stolen by gdb-stub */ - -#if defined(CONFIG_GDBSTUB_ON_TTYS0) -#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8) -#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8) -#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8) -#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8) -#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8) -#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8) -#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8) -#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8) -#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8) -#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8) -#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8) -#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8) -#define GDBPORT_SERIAL_IRQ SERIAL_IRQ - -#elif defined(CONFIG_GDBSTUB_ON_TTYS1) -#error The ASB2305 doesnt have a /dev/ttyS1 -#endif - -#ifndef __ASSEMBLY__ - -#define TTYS0_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8) -#define TTYS0_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8) -#define TTYS0_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8) -#define TTYS0_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8) - -#define LSR_WAIT_FOR(STATE) \ -do { \ - while (!(TTYS0_LSR & UART_LSR_##STATE)) {} \ -} while (0) -#define FLOWCTL_WAIT_FOR(LINE) \ -do { \ - while (!(TTYS0_MSR & UART_MSR_##LINE)) {} \ -} while (0) -#define FLOWCTL_CLEAR(LINE) \ -do { \ - TTYS0_MCR &= ~UART_MCR_##LINE; \ -} while (0) -#define FLOWCTL_SET(LINE) \ -do { \ - TTYS0_MCR |= UART_MCR_##LINE; \ -} while (0) -#define FLOWCTL_QUERY(LINE) ({ TTYS0_MSR & UART_MSR_##LINE; }) - -static inline void __debug_to_serial(const char *p, int n) -{ - char ch; - - FLOWCTL_SET(DTR); - - for (; n > 0; n--) { - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - - ch = *p++; - if (ch == 0x0a) { - TTYS0_TX = 0x0d; - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - } - TTYS0_TX = ch; - } - - FLOWCTL_CLEAR(DTR); -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* CONFIG_GDBSTUB_ON_TTYSx */ - -#endif /* _ASM_UNIT_SERIAL_H */ diff --git a/arch/mn10300/unit-asb2305/include/unit/timex.h b/arch/mn10300/unit-asb2305/include/unit/timex.h deleted file mode 100644 index 4cefc224f448..000000000000 --- a/arch/mn10300/unit-asb2305/include/unit/timex.h +++ /dev/null @@ -1,146 +0,0 @@ -/* ASB2305-specific timer specifications - * - * Copyright (C) 2007, 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_TIMEX_H -#define _ASM_UNIT_TIMEX_H - -#include <asm/timer-regs.h> -#include <unit/clock.h> -#include <asm/param.h> - -/* - * jiffies counter specifications - */ - -#define TMJCBR_MAX 0xffff -#define TMJCIRQ TM1IRQ -#define TMJCICR TM1ICR - -#ifndef __ASSEMBLY__ - -#define MN10300_SRC_IOCLK MN10300_IOCLK - -#ifndef HZ -# error HZ undeclared. -#endif /* !HZ */ -/* use as little prescaling as possible to avoid losing accuracy */ -#if (MN10300_SRC_IOCLK + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 1 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK -#elif (MN10300_SRC_IOCLK / 8 + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 8 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_8 -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_8 -#elif (MN10300_SRC_IOCLK / 32 + HZ / 2) / HZ - 1 <= TMJCBR_MAX -# define IOCLK_PRESCALE 32 -# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_32 -# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_32 -#else -# error You lose. -#endif - -#define MN10300_JCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE) -#define MN10300_TSCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE) - -#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ) -#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ) - -static inline void stop_jiffies_counter(void) -{ - u16 tmp; - TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8; - tmp = TM01MD; -} - -static inline void reload_jiffies_counter(u32 cnt) -{ - u32 tmp; - - TM01BR = cnt; - tmp = TM01BR; - - TM01MD = JC_TIMER_CLKSRC | \ - TM1MD_SRC_TM0CASCADE << 8 | \ - TM0MD_INIT_COUNTER | \ - TM1MD_INIT_COUNTER << 8; - - - TM01MD = JC_TIMER_CLKSRC | \ - TM1MD_SRC_TM0CASCADE << 8 | \ - TM0MD_COUNT_ENABLE | \ - TM1MD_COUNT_ENABLE << 8; - - tmp = TM01MD; -} - -#endif /* !__ASSEMBLY__ */ - - -/* - * timestamp counter specifications - */ - -#define TMTSCBR_MAX 0xffffffff -#define TMTSCBC TM45BC - -#ifndef __ASSEMBLY__ - -static inline void startup_timestamp_counter(void) -{ - u32 t32; - - /* set up timer 4 & 5 cascaded as a 32-bit counter to count real time - * - count down from 4Gig-1 to 0 and wrap at IOCLK rate - */ - TM45BR = TMTSCBR_MAX; - t32 = TM45BR; - - TM4MD = TSC_TIMER_CLKSRC; - TM4MD |= TM4MD_INIT_COUNTER; - TM4MD &= ~TM4MD_INIT_COUNTER; - TM4ICR = 0; - t32 = TM4ICR; - - TM5MD = TM5MD_SRC_TM4CASCADE; - TM5MD |= TM5MD_INIT_COUNTER; - TM5MD &= ~TM5MD_INIT_COUNTER; - TM5ICR = 0; - t32 = TM5ICR; - - TM5MD |= TM5MD_COUNT_ENABLE; - TM4MD |= TM4MD_COUNT_ENABLE; - t32 = TM5MD; - t32 = TM4MD; -} - -static inline void shutdown_timestamp_counter(void) -{ - u8 t8; - TM4MD = 0; - TM5MD = 0; - t8 = TM4MD; - t8 = TM5MD; -} - -/* - * we use a cascaded pair of 16-bit down-counting timers to count I/O - * clock cycles for the purposes of time keeping - */ -typedef unsigned long cycles_t; - -static inline cycles_t read_timestamp_counter(void) -{ - return (cycles_t)~TMTSCBC; -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_UNIT_TIMEX_H */ diff --git a/arch/mn10300/unit-asb2305/leds.c b/arch/mn10300/unit-asb2305/leds.c deleted file mode 100644 index 6f8de9954026..000000000000 --- a/arch/mn10300/unit-asb2305/leds.c +++ /dev/null @@ -1,124 +0,0 @@ -/* ASB2305 Peripheral 7-segment LEDs x4 support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <asm/rtc-regs.h> -#include <unit/leds.h> - -static const u8 asb2305_led_hex_tbl[16] = { - 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0, - 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c -}; - -static const u32 asb2305_led_chase_tbl[6] = { - ~0x02020202, /* top - segA */ - ~0x04040404, /* right top - segB */ - ~0x08080808, /* right bottom - segC */ - ~0x10101010, /* bottom - segD */ - ~0x20202020, /* left bottom - segE */ - ~0x40404040, /* left top - segF */ -}; - -static unsigned asb2305_led_chase; - -void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) -{ - u32 leds; - - leds = asb2305_led_hex_tbl[(val/1000) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(val/100) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(val/10) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[val % 10]; - leds |= points^0x01010101; - - ASB2305_7SEGLEDS = leds; -} - -void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) -{ - u32 leds; - - leds = asb2305_led_hex_tbl[(val/1000) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(val/100) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(val/10) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[val % 10]; - leds |= points^0x01010101; - - ASB2305_7SEGLEDS = leds; -} - -void peripheral_leds_display_exception(enum exception_code code) -{ - u32 leds; - - leds = asb2305_led_hex_tbl[(code/0x100) % 0x10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(code/0x10) % 0x10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[code % 0x10]; - leds |= 0x6d010101; - - ASB2305_7SEGLEDS = leds; -} - -void peripheral_leds7x4_display_minssecs(unsigned int time, unsigned int points) -{ - u32 leds; - - leds = asb2305_led_hex_tbl[(time/600) % 6]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(time/60) % 10]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[(time/10) % 6]; - leds <<= 8; - leds |= asb2305_led_hex_tbl[time % 10]; - leds |= points^0x01010101; - - ASB2305_7SEGLEDS = leds; -} - -void peripheral_leds7x4_display_rtc(void) -{ - unsigned int clock; - u8 mins, secs; - - mins = RTMCR; - secs = RTSCR; - - clock = ((mins & 0xf0) >> 4); - clock *= 10; - clock += (mins & 0x0f); - clock *= 6; - - clock += ((secs & 0xf0) >> 4); - clock *= 10; - clock += (secs & 0x0f); - - peripheral_leds7x4_display_minssecs(clock, 0); -} - -void peripheral_leds_led_chase(void) -{ - ASB2305_7SEGLEDS = asb2305_led_chase_tbl[asb2305_led_chase]; - asb2305_led_chase++; - if (asb2305_led_chase >= 6) - asb2305_led_chase = 0; -} diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c deleted file mode 100644 index e0f4617c0c7a..000000000000 --- a/arch/mn10300/unit-asb2305/pci-asb2305.c +++ /dev/null @@ -1,212 +0,0 @@ -/* ASB2305 PCI resource stuff - * - * Copyright (C) 2001 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - Derived from arch/i386/pci-i386.c - * - Copyright 1997--2000 Martin Mares <mj@suse.cz> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/errno.h> -#include "pci-asb2305.h" - -/* - * We need to avoid collisions with `mirrored' VGA ports - * and other strange ISA hardware, so we always want the - * addresses to be allocated in the 0x000-0x0ff region - * modulo 0x400. - * - * Why? Because some silly external IO cards only decode - * the low 10 bits of the IO address. The 0x00-0xff region - * is reserved for motherboard devices that decode all 16 - * bits, so it's ok to allocate at, say, 0x2800-0x28ff, - * but we want to try to avoid allocating at 0x2900-0x2bff - * which might have be mirrored at 0x0100-0x03ff.. - */ -resource_size_t pcibios_align_resource(void *data, const struct resource *res, - resource_size_t size, resource_size_t align) -{ - resource_size_t start = res->start; - -#if 0 - struct pci_dev *dev = data; - - printk(KERN_DEBUG - "### PCIBIOS_ALIGN_RESOURCE(%s,,{%08lx-%08lx,%08lx},%lx)\n", - pci_name(dev), - res->start, - res->end, - res->flags, - size - ); -#endif - - if ((res->flags & IORESOURCE_IO) && (start & 0x300)) - start = (start + 0x3ff) & ~0x3ff; - - return start; -} - - -/* - * Handle resources of PCI devices. If the world were perfect, we could - * just allocate all the resource regions and do nothing more. It isn't. - * On the other hand, we cannot just re-allocate all devices, as it would - * require us to know lots of host bridge internals. So we attempt to - * keep as much of the original configuration as possible, but tweak it - * when it's found to be wrong. - * - * Known BIOS problems we have to work around: - * - I/O or memory regions not configured - * - regions configured, but not enabled in the command register - * - bogus I/O addresses above 64K used - * - expansion ROMs left enabled (this may sound harmless, but given - * the fact the PCI specs explicitly allow address decoders to be - * shared between expansion ROMs and other resource regions, it's - * at least dangerous) - * - * Our solution: - * (1) Allocate resources for all buses behind PCI-to-PCI bridges. - * This gives us fixed barriers on where we can allocate. - * (2) Allocate resources for all enabled devices. If there is - * a collision, just mark the resource as unallocated. Also - * disable expansion ROMs during this step. - * (3) Try to allocate resources for disabled devices. If the - * resources were assigned correctly, everything goes well, - * if they weren't, they won't disturb allocation of other - * resources. - * (4) Assign new addresses to resources which were either - * not configured at all or misconfigured. If explicitly - * requested by the user, configure expansion ROM address - * as well. - */ -static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) -{ - struct pci_bus *bus; - struct pci_dev *dev; - int idx; - struct resource *r; - - /* Depth-First Search on bus tree */ - list_for_each_entry(bus, bus_list, node) { - dev = bus->self; - if (dev) { - for (idx = PCI_BRIDGE_RESOURCES; - idx < PCI_NUM_RESOURCES; - idx++) { - r = &dev->resource[idx]; - if (!r->flags) - continue; - if (!r->start || - pci_claim_bridge_resource(dev, idx) < 0) { - printk(KERN_ERR "PCI:" - " Cannot allocate resource" - " region %d of bridge %s\n", - idx, pci_name(dev)); - /* Something is wrong with the region. - * Invalidate the resource to prevent - * child resource allocations in this - * range. */ - r->start = r->end = 0; - r->flags = 0; - } - } - } - pcibios_allocate_bus_resources(&bus->children); - } -} - -static void __init pcibios_allocate_resources(int pass) -{ - struct pci_dev *dev = NULL; - int idx, disabled; - u16 command; - struct resource *r; - - for_each_pci_dev(dev) { - pci_read_config_word(dev, PCI_COMMAND, &command); - for (idx = 0; idx < 6; idx++) { - r = &dev->resource[idx]; - if (r->parent) /* Already allocated */ - continue; - if (!r->start) /* Address not assigned */ - continue; - if (r->flags & IORESOURCE_IO) - disabled = !(command & PCI_COMMAND_IO); - else - disabled = !(command & PCI_COMMAND_MEMORY); - if (pass == disabled) { - DBG("PCI[%s]: Resource %08lx-%08lx" - " (f=%lx, d=%d, p=%d)\n", - pci_name(dev), r->start, r->end, r->flags, - disabled, pass); - if (pci_claim_resource(dev, idx) < 0) { - printk(KERN_ERR "PCI:" - " Cannot allocate resource" - " region %d of device %s\n", - idx, pci_name(dev)); - /* We'll assign a new address later */ - r->end -= r->start; - r->start = 0; - } - } - } - if (!pass) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (r->flags & IORESOURCE_ROM_ENABLE) { - /* Turn the ROM off, leave the resource region, - * but keep it unregistered. */ - u32 reg; - DBG("PCI: Switching off ROM of %s\n", - pci_name(dev)); - r->flags &= ~IORESOURCE_ROM_ENABLE; - pci_read_config_dword( - dev, dev->rom_base_reg, ®); - pci_write_config_dword( - dev, dev->rom_base_reg, - reg & ~PCI_ROM_ADDRESS_ENABLE); - } - } - } -} - -static int __init pcibios_assign_resources(void) -{ - struct pci_dev *dev = NULL; - struct resource *r; - - /* Try to use BIOS settings for ROMs, otherwise let - pci_assign_unassigned_resources() allocate the new - addresses. */ - for_each_pci_dev(dev) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (!r->flags || !r->start) - continue; - if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) { - r->end -= r->start; - r->start = 0; - } - } - - pci_assign_unassigned_resources(); - - return 0; -} - -fs_initcall(pcibios_assign_resources); - -void __init pcibios_resource_survey(void) -{ - DBG("PCI: Allocating resources\n"); - pcibios_allocate_bus_resources(&pci_root_buses); - pcibios_allocate_resources(0); - pcibios_allocate_resources(1); -} diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h deleted file mode 100644 index 0667f613b023..000000000000 --- a/arch/mn10300/unit-asb2305/pci-asb2305.h +++ /dev/null @@ -1,65 +0,0 @@ -/* ASB2305 Arch-specific PCI declarations - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <mj@ucw.cz> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _PCI_ASB2305_H -#define _PCI_ASB2305_H - -#undef DEBUG - -#ifdef DEBUG -#define DBG(x...) printk(x) -#else -#define DBG(x...) -#endif - -extern unsigned int pci_probe; - -/* pci-asb2305.c */ - -extern void pcibios_resource_survey(void); - -/* pci.c */ - -extern struct pci_ops *pci_root_ops; - -/* pci-irq.c */ - -struct irq_info { - u8 bus, devfn; /* Bus, device and function */ - struct { - u8 link; /* IRQ line ID, chipset dependent, - * 0=not routed */ - u16 bitmap; /* Available IRQs */ - } __attribute__((packed)) irq[4]; - u8 slot; /* Slot number, 0=onboard */ - u8 rfu; -} __attribute__((packed)); - -struct irq_routing_table { - u32 signature; /* PIRQ_SIGNATURE should be here */ - u16 version; /* PIRQ_VERSION */ - u16 size; /* Table size in bytes */ - u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */ - u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */ - u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */ - u32 miniport_data; /* Crap */ - u8 rfu[11]; - u8 checksum; /* Modulo 256 checksum must give zero */ - struct irq_info slots[0]; -} __attribute__((packed)); - -extern unsigned int pcibios_irq_mask; - -extern void pcibios_irq_init(void); -extern void pcibios_fixup_irqs(void); -extern void pcibios_enable_irq(struct pci_dev *dev); - -#endif /* PCI_ASB2305_H */ diff --git a/arch/mn10300/unit-asb2305/pci-irq.c b/arch/mn10300/unit-asb2305/pci-irq.c deleted file mode 100644 index fcb28ceb824d..000000000000 --- a/arch/mn10300/unit-asb2305/pci-irq.c +++ /dev/null @@ -1,46 +0,0 @@ -/* PCI IRQ routing on the MN103E010 based ASB2305 - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - * - * This is simple: All PCI interrupts route through the CPU's XIRQ1 pin [IRQ 35] - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <asm/io.h> -#include <asm/smp.h> -#include "pci-asb2305.h" - -void __init pcibios_irq_init(void) -{ -} - -void __init pcibios_fixup_irqs(void) -{ - struct pci_dev *dev = NULL; - u8 line, pin; - - for_each_pci_dev(dev) { - pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); - if (pin) { - dev->irq = XIRQ1; - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, - dev->irq); - } - pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line); - } -} - -void pcibios_enable_irq(struct pci_dev *dev) -{ - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); -} diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c deleted file mode 100644 index 3dfe2d31c67b..000000000000 --- a/arch/mn10300/unit-asb2305/pci.c +++ /dev/null @@ -1,505 +0,0 @@ -/* ASB2305 PCI support - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * Derived from arch/i386/kernel/pci-pc.c - * (c) 1999--2000 Martin Mares <mj@suse.cz> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/delay.h> -#include <linux/irq.h> -#include <asm/io.h> -#include <asm/irq.h> -#include "pci-asb2305.h" - -unsigned int pci_probe = 1; - -struct pci_ops *pci_root_ops; - -/* - * The accessible PCI window does not cover the entire CPU address space, but - * there are devices we want to access outside of that window, so we need to - * insert specific PCI bus resources instead of using the platform-level bus - * resources directly for the PCI root bus. - * - * These are configured and inserted by pcibios_init(). - */ -static struct resource pci_ioport_resource = { - .name = "PCI IO", - .start = 0xbe000000, - .end = 0xbe03ffff, - .flags = IORESOURCE_IO, -}; - -static struct resource pci_iomem_resource = { - .name = "PCI mem", - .start = 0xb8000000, - .end = 0xbbffffff, - .flags = IORESOURCE_MEM, -}; - -/* - * Functions for accessing PCI configuration space - */ - -#define CONFIG_CMD(bus, devfn, where) \ - (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) - -#define MEM_PAGING_REG (*(volatile __u32 *) 0xBFFFFFF4) -#define CONFIG_ADDRESS (*(volatile __u32 *) 0xBFFFFFF8) -#define CONFIG_DATAL(X) (*(volatile __u32 *) 0xBFFFFFFC) -#define CONFIG_DATAW(X) (*(volatile __u16 *) (0xBFFFFFFC + ((X) & 2))) -#define CONFIG_DATAB(X) (*(volatile __u8 *) (0xBFFFFFFC + ((X) & 3))) - -#define BRIDGEREGB(X) (*(volatile __u8 *) (0xBE040000 + (X))) -#define BRIDGEREGW(X) (*(volatile __u16 *) (0xBE040000 + (X))) -#define BRIDGEREGL(X) (*(volatile __u32 *) (0xBE040000 + (X))) - -static inline int __query(const struct pci_bus *bus, unsigned int devfn) -{ -#if 0 - return bus->number == 0 && (devfn == PCI_DEVFN(0, 0)); - return bus->number == 1; - return bus->number == 0 && - (devfn == PCI_DEVFN(2, 0) || devfn == PCI_DEVFN(3, 0)); -#endif - return 1; -} - -/* - * - */ -static int pci_ampci_read_config_byte(struct pci_bus *bus, unsigned int devfn, - int where, u32 *_value) -{ - u32 rawval, value; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - value = BRIDGEREGB(where); - __pcbdebug("=> %02hx", &BRIDGEREGL(where), value); - } else { - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - value = CONFIG_DATAB(where); - if (__query(bus, devfn)) - __pcidebug("=> %02hx", bus, devfn, where, value); - } - - *_value = value; - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_read_config_word(struct pci_bus *bus, unsigned int devfn, - int where, u32 *_value) -{ - u32 rawval, value; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - value = BRIDGEREGW(where); - __pcbdebug("=> %04hx", &BRIDGEREGL(where), value); - } else { - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - value = CONFIG_DATAW(where); - if (__query(bus, devfn)) - __pcidebug("=> %04hx", bus, devfn, where, value); - } - - *_value = value; - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_read_config_dword(struct pci_bus *bus, unsigned int devfn, - int where, u32 *_value) -{ - u32 rawval, value; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - value = BRIDGEREGL(where); - __pcbdebug("=> %08x", &BRIDGEREGL(where), value); - } else { - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - value = CONFIG_DATAL(where); - if (__query(bus, devfn)) - __pcidebug("=> %08x", bus, devfn, where, value); - } - - *_value = value; - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_write_config_byte(struct pci_bus *bus, unsigned int devfn, - int where, u8 value) -{ - u32 rawval; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __pcbdebug("<= %02x", &BRIDGEREGB(where), value); - BRIDGEREGB(where) = value; - } else { - if (bus->number == 0 && - (devfn == PCI_DEVFN(2, 0) || devfn == PCI_DEVFN(3, 0)) - ) - __pcidebug("<= %02x", bus, devfn, where, value); - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - CONFIG_DATAB(where) = value; - } - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_write_config_word(struct pci_bus *bus, unsigned int devfn, - int where, u16 value) -{ - u32 rawval; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __pcbdebug("<= %04hx", &BRIDGEREGW(where), value); - BRIDGEREGW(where) = value; - } else { - if (__query(bus, devfn)) - __pcidebug("<= %04hx", bus, devfn, where, value); - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - CONFIG_DATAW(where) = value; - } - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_write_config_dword(struct pci_bus *bus, unsigned int devfn, - int where, u32 value) -{ - u32 rawval; - - if (bus->number == 0 && devfn == PCI_DEVFN(0, 0)) { - __pcbdebug("<= %08x", &BRIDGEREGL(where), value); - BRIDGEREGL(where) = value; - } else { - if (__query(bus, devfn)) - __pcidebug("<= %08x", bus, devfn, where, value); - CONFIG_ADDRESS = CONFIG_CMD(bus, devfn, where); - rawval = CONFIG_ADDRESS; - CONFIG_DATAL(where) = value; - } - return PCIBIOS_SUCCESSFUL; -} - -static int pci_ampci_read_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 *val) -{ - switch (size) { - case 1: - return pci_ampci_read_config_byte(bus, devfn, where, val); - case 2: - return pci_ampci_read_config_word(bus, devfn, where, val); - case 4: - return pci_ampci_read_config_dword(bus, devfn, where, val); - default: - BUG(); - return -EOPNOTSUPP; - } -} - -static int pci_ampci_write_config(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - switch (size) { - case 1: - return pci_ampci_write_config_byte(bus, devfn, where, val); - case 2: - return pci_ampci_write_config_word(bus, devfn, where, val); - case 4: - return pci_ampci_write_config_dword(bus, devfn, where, val); - default: - BUG(); - return -EOPNOTSUPP; - } -} - -static struct pci_ops pci_direct_ampci = { - .read = pci_ampci_read_config, - .write = pci_ampci_write_config, -}; - -/* - * Before we decide to use direct hardware access mechanisms, we try to do some - * trivial checks to ensure it at least _seems_ to be working -- we just test - * whether bus 00 contains a host bridge (this is similar to checking - * techniques used in XFree86, but ours should be more reliable since we - * attempt to make use of direct access hints provided by the PCI BIOS). - * - * This should be close to trivial, but it isn't, because there are buggy - * chipsets (yes, you guessed it, by Intel and Compaq) that have no class ID. - */ -static int __init pci_sanity_check(struct pci_ops *o) -{ - struct pci_bus bus; /* Fake bus and device */ - u32 x; - - bus.number = 0; - - if ((!o->read(&bus, 0, PCI_CLASS_DEVICE, 2, &x) && - (x == PCI_CLASS_BRIDGE_HOST || x == PCI_CLASS_DISPLAY_VGA)) || - (!o->read(&bus, 0, PCI_VENDOR_ID, 2, &x) && - (x == PCI_VENDOR_ID_INTEL || x == PCI_VENDOR_ID_COMPAQ))) - return 1; - - printk(KERN_ERR "PCI: Sanity check failed\n"); - return 0; -} - -static int __init pci_check_direct(void) -{ - unsigned long flags; - - local_irq_save(flags); - - /* - * Check if access works. - */ - if (pci_sanity_check(&pci_direct_ampci)) { - local_irq_restore(flags); - printk(KERN_INFO "PCI: Using configuration ampci\n"); - request_mem_region(0xBE040000, 256, "AMPCI bridge"); - request_mem_region(0xBFFFFFF4, 12, "PCI ampci"); - request_mem_region(0xBC000000, 32 * 1024 * 1024, "PCI SRAM"); - return 0; - } - - local_irq_restore(flags); - return -ENODEV; -} - -static void pcibios_fixup_device_resources(struct pci_dev *dev) -{ - int idx; - - if (!dev->bus) - return; - - for (idx = 0; idx < PCI_BRIDGE_RESOURCES; idx++) { - struct resource *r = &dev->resource[idx]; - - if (!r->flags || r->parent || !r->start) - continue; - - pci_claim_resource(dev, idx); - } -} - -static void pcibios_fixup_bridge_resources(struct pci_dev *dev) -{ - int idx; - - if (!dev->bus) - return; - - for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) { - struct resource *r = &dev->resource[idx]; - - if (!r->flags || r->parent || !r->start) - continue; - - pci_claim_bridge_resource(dev, idx); - } -} - -/* - * Called after each bus is probed, but before its children - * are examined. - */ -void pcibios_fixup_bus(struct pci_bus *bus) -{ - struct pci_dev *dev; - - if (bus->self) { - pci_read_bridge_bases(bus); - pcibios_fixup_bridge_resources(bus->self); - } - - list_for_each_entry(dev, &bus->devices, bus_list) - pcibios_fixup_device_resources(dev); -} - -/* - * Initialization. Try all known PCI access methods. Note that we support - * using both PCI BIOS and direct access: in such cases, we use I/O ports - * to access config space, but we still keep BIOS order of cards to be - * compatible with 2.0.X. This should go away some day. - */ -static int __init pcibios_init(void) -{ - resource_size_t io_offset, mem_offset; - LIST_HEAD(resources); - struct pci_bus *bus; - - ioport_resource.start = 0xA0000000; - ioport_resource.end = 0xDFFFFFFF; - iomem_resource.start = 0xA0000000; - iomem_resource.end = 0xDFFFFFFF; - - if (insert_resource(&iomem_resource, &pci_iomem_resource) < 0) - panic("Unable to insert PCI IOMEM resource\n"); - if (insert_resource(&ioport_resource, &pci_ioport_resource) < 0) - panic("Unable to insert PCI IOPORT resource\n"); - - if (!pci_probe) - return 0; - - if (pci_check_direct() < 0) { - printk(KERN_WARNING "PCI: No PCI bus detected\n"); - return 0; - } - - printk(KERN_INFO "PCI: Probing PCI hardware [mempage %08x]\n", - MEM_PAGING_REG); - - io_offset = pci_ioport_resource.start - - (pci_ioport_resource.start & 0x00ffffff); - mem_offset = pci_iomem_resource.start - - ((pci_iomem_resource.start & 0x03ffffff) | MEM_PAGING_REG); - - pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset); - pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset); - bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); - if (!bus) - return 0; - - pcibios_irq_init(); - pcibios_fixup_irqs(); - pcibios_resource_survey(); - pci_bus_add_devices(bus); - return 0; -} - -arch_initcall(pcibios_init); - -char *__init pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } - - return str; -} - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - int err; - - err = pci_enable_resources(dev, mask); - if (err == 0) - pcibios_enable_irq(dev); - return err; -} - -/* - * disable the ethernet chipset - */ -static void __init unit_disable_pcnet(struct pci_bus *bus, struct pci_ops *o) -{ - u32 x; - - bus->number = 0; - - o->read (bus, PCI_DEVFN(2, 0), PCI_VENDOR_ID, 4, &x); - o->read (bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, &x); - x |= PCI_COMMAND_MASTER | - PCI_COMMAND_IO | PCI_COMMAND_MEMORY | - PCI_COMMAND_SERR | PCI_COMMAND_PARITY; - o->write(bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, x); - o->read (bus, PCI_DEVFN(2, 0), PCI_COMMAND, 2, &x); - o->write(bus, PCI_DEVFN(2, 0), PCI_BASE_ADDRESS_0, 4, 0x00030001); - o->read (bus, PCI_DEVFN(2, 0), PCI_BASE_ADDRESS_0, 4, &x); - -#define RDP (*(volatile u32 *) 0xBE030010) -#define RAP (*(volatile u32 *) 0xBE030014) -#define __set_RAP(X) do { RAP = (X); x = RAP; } while (0) -#define __set_RDP(X) do { RDP = (X); x = RDP; } while (0) -#define __get_RDP() ({ RDP & 0xffff; }) - - __set_RAP(0); - __set_RDP(0x0004); /* CSR0 = STOP */ - - __set_RAP(88); /* check CSR88 indicates an Am79C973 */ - BUG_ON(__get_RDP() != 0x5003); - - for (x = 0; x < 100; x++) - asm volatile("nop"); - - __set_RDP(0x0004); /* CSR0 = STOP */ -} - -/* - * initialise the unit hardware - */ -asmlinkage void __init unit_pci_init(void) -{ - struct pci_bus bus; /* Fake bus and device */ - struct pci_ops *o = &pci_direct_ampci; - u32 x; - - set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_PCI_IRQ_LEVEL)); - - memset(&bus, 0, sizeof(bus)); - - MEM_PAGING_REG = 0xE8000000; - - /* we need to set up the bridge _now_ or we won't be able to access the - * PCI config registers - */ - BRIDGEREGW(PCI_COMMAND) |= - PCI_COMMAND_SERR | PCI_COMMAND_PARITY | - PCI_COMMAND_MEMORY | PCI_COMMAND_IO | PCI_COMMAND_MASTER; - BRIDGEREGW(PCI_STATUS) = 0xF800; - BRIDGEREGB(PCI_LATENCY_TIMER) = 0x10; - BRIDGEREGL(PCI_BASE_ADDRESS_0) = 0x80000000; - BRIDGEREGB(PCI_INTERRUPT_LINE) = 1; - BRIDGEREGL(0x48) = 0x98000000; /* AMPCI base addr */ - BRIDGEREGB(0x41) = 0x00; /* secondary bus - * number */ - BRIDGEREGB(0x42) = 0x01; /* subordinate bus - * number */ - BRIDGEREGB(0x44) = 0x01; - BRIDGEREGL(0x50) = 0x00000001; - BRIDGEREGL(0x58) = 0x00001002; - BRIDGEREGL(0x5C) = 0x00000011; - - /* we also need to set up the PCI-PCI bridge */ - bus.number = 0; - - /* IO: 0x00000000-0x00020000 */ - o->read (&bus, PCI_DEVFN(3, 0), PCI_COMMAND, 2, &x); - x |= PCI_COMMAND_MASTER | - PCI_COMMAND_IO | PCI_COMMAND_MEMORY | - PCI_COMMAND_SERR | PCI_COMMAND_PARITY; - o->write(&bus, PCI_DEVFN(3, 0), PCI_COMMAND, 2, x); - - o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, &x); - o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, &x); - o->read (&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, &x); - o->read (&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, &x); - - o->write(&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, 0x01); - o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE, 1, &x); - o->write(&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, 0x00020000); - o->read (&bus, PCI_DEVFN(3, 0), PCI_IO_BASE_UPPER16, 4, &x); - o->write(&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, 0xEBB0EA00); - o->read (&bus, PCI_DEVFN(3, 0), PCI_MEMORY_BASE, 4, &x); - o->write(&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, 0xE9F0E800); - o->read (&bus, PCI_DEVFN(3, 0), PCI_PREF_MEMORY_BASE, 4, &x); - - unit_disable_pcnet(&bus, o); -} diff --git a/arch/mn10300/unit-asb2305/unit-init.c b/arch/mn10300/unit-asb2305/unit-init.c deleted file mode 100644 index bc4adfaf815c..000000000000 --- a/arch/mn10300/unit-asb2305/unit-init.c +++ /dev/null @@ -1,63 +0,0 @@ -/* ASB2305 Initialisation - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/setup.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <asm/serial-regs.h> -#include <unit/serial.h> - -/* - * initialise some of the unit hardware before gdbstub is set up - */ -asmlinkage void __init unit_init(void) -{ -#ifndef CONFIG_GDBSTUB_ON_TTYSx - /* set the 16550 interrupt line to level 3 if not being used for GDB */ -#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL - set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL)); -#endif -#endif /* CONFIG_GDBSTUB_ON_TTYSx */ -} - -/* - * initialise the rest of the unit hardware after gdbstub is ready - */ -void __init unit_setup(void) -{ -#ifdef CONFIG_PCI - unit_pci_init(); -#endif -} - -/* - * initialise the external interrupts used by a unit of this type - */ -void __init unit_init_IRQ(void) -{ - unsigned int extnum; - - for (extnum = 0; extnum < NR_XIRQS; extnum++) { - switch (GET_XIRQ_TRIGGER(extnum)) { - case XIRQ_TRIGGER_HILEVEL: - case XIRQ_TRIGGER_LOWLEVEL: - mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum)); - break; - default: - break; - } - } -} diff --git a/arch/mn10300/unit-asb2364/Makefile b/arch/mn10300/unit-asb2364/Makefile deleted file mode 100644 index b3263ecfc4ff..000000000000 --- a/arch/mn10300/unit-asb2364/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# -# Makefile for the linux kernel. -# -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# -# Note 2! The CFLAGS definitions are now in the main makefile... - -obj-y := unit-init.o leds.o irq-fpga.o - -obj-$(CONFIG_SMSC911X) += smsc911x.o diff --git a/arch/mn10300/unit-asb2364/include/unit/clock.h b/arch/mn10300/unit-asb2364/include/unit/clock.h deleted file mode 100644 index d34ac9a7508b..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/clock.h +++ /dev/null @@ -1,29 +0,0 @@ -/* clock.h: unit-specific clocks - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * Modified by Matsushita Electric Industrial Co., Ltd. - * Modifications: - * 23-Feb-2007 MEI Add define for watchdog timer. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_CLOCK_H -#define _ASM_UNIT_CLOCK_H - -#ifndef __ASSEMBLY__ - -#define MN10300_IOCLK 100000000UL /* for DDR800 */ -/*#define MN10300_IOCLK 83333333UL */ /* for DDR667 */ -#define MN10300_IOBCLK MN10300_IOCLK /* IOBCLK is equal to IOCLK */ - -#endif /* !__ASSEMBLY__ */ - -#define MN10300_WDCLK 27000000UL - -#endif /* _ASM_UNIT_CLOCK_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h deleted file mode 100644 index 2901ed344b3d..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h +++ /dev/null @@ -1,53 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* ASB2364 FPGA registers - */ - -#ifndef _ASM_UNIT_FPGA_REGS_H -#define _ASM_UNIT_FPGA_REGS_H - -#include <asm/cpu-regs.h> - -#ifdef __KERNEL__ - -#define ASB2364_FPGA_REG_RESET_LAN __SYSREG(0xa9001300, u16) -#define ASB2364_FPGA_REG_RESET_UART __SYSREG(0xa9001304, u16) -#define ASB2364_FPGA_REG_RESET_I2C __SYSREG(0xa9001308, u16) -#define ASB2364_FPGA_REG_RESET_USB __SYSREG(0xa900130c, u16) -#define ASB2364_FPGA_REG_RESET_AV __SYSREG(0xa9001310, u16) - -#define ASB2364_FPGA_REG_IRQ(X) __SYSREG(0xa9001510+((X)*4), u16) -#define ASB2364_FPGA_REG_IRQ_LAN ASB2364_FPGA_REG_IRQ(0) -#define ASB2364_FPGA_REG_IRQ_UART ASB2364_FPGA_REG_IRQ(1) -#define ASB2364_FPGA_REG_IRQ_I2C ASB2364_FPGA_REG_IRQ(2) -#define ASB2364_FPGA_REG_IRQ_USB ASB2364_FPGA_REG_IRQ(3) -#define ASB2364_FPGA_REG_IRQ_FPGA ASB2364_FPGA_REG_IRQ(5) - -#define ASB2364_FPGA_REG_MASK(X) __SYSREG(0xa9001590+((X)*4), u16) -#define ASB2364_FPGA_REG_MASK_LAN ASB2364_FPGA_REG_MASK(0) -#define ASB2364_FPGA_REG_MASK_UART ASB2364_FPGA_REG_MASK(1) -#define ASB2364_FPGA_REG_MASK_I2C ASB2364_FPGA_REG_MASK(2) -#define ASB2364_FPGA_REG_MASK_USB ASB2364_FPGA_REG_MASK(3) -#define ASB2364_FPGA_REG_MASK_FPGA ASB2364_FPGA_REG_MASK(5) - -#define ASB2364_FPGA_REG_CPLD5_SET1 __SYSREG(0xa9002500, u16) -#define ASB2364_FPGA_REG_CPLD5_SET2 __SYSREG(0xa9002504, u16) -#define ASB2364_FPGA_REG_CPLD6_SET1 __SYSREG(0xa9002600, u16) -#define ASB2364_FPGA_REG_CPLD6_SET2 __SYSREG(0xa9002604, u16) -#define ASB2364_FPGA_REG_CPLD7_SET1 __SYSREG(0xa9002700, u16) -#define ASB2364_FPGA_REG_CPLD7_SET2 __SYSREG(0xa9002704, u16) -#define ASB2364_FPGA_REG_CPLD8_SET1 __SYSREG(0xa9002800, u16) -#define ASB2364_FPGA_REG_CPLD8_SET2 __SYSREG(0xa9002804, u16) -#define ASB2364_FPGA_REG_CPLD9_SET1 __SYSREG(0xa9002900, u16) -#define ASB2364_FPGA_REG_CPLD9_SET2 __SYSREG(0xa9002904, u16) -#define ASB2364_FPGA_REG_CPLD10_SET1 __SYSREG(0xa9002a00, u16) -#define ASB2364_FPGA_REG_CPLD10_SET2 __SYSREG(0xa9002a04, u16) - -#define SyncExBus() \ - do { \ - unsigned short w; \ - w = *(volatile short *)0xa9000000; \ - } while (0) - -#endif /* __KERNEL__ */ - -#endif /* _ASM_UNIT_FPGA_REGS_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/irq.h b/arch/mn10300/unit-asb2364/include/unit/irq.h deleted file mode 100644 index 786148e46565..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/irq.h +++ /dev/null @@ -1,35 +0,0 @@ -/* ASB2364 FPGA irq numbers - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#ifndef _UNIT_IRQ_H -#define _UNIT_IRQ_H - -#ifndef __ASSEMBLY__ - -#ifdef CONFIG_SMP -#define NR_CPU_IRQS GxICR_NUM_EXT_IRQS -#else -#define NR_CPU_IRQS GxICR_NUM_IRQS -#endif - -enum { - FPGA_LAN_IRQ = NR_CPU_IRQS, - FPGA_UART_IRQ, - FPGA_I2C_IRQ, - FPGA_USB_IRQ, - FPGA_RESERVED_IRQ, - FPGA_FPGA_IRQ, - NR_IRQS -}; - -extern void __init irq_fpga_init(void); - -#endif /* !__ASSEMBLY__ */ -#endif /* _UNIT_IRQ_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/leds.h b/arch/mn10300/unit-asb2364/include/unit/leds.h deleted file mode 100644 index 03a3933ad323..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/leds.h +++ /dev/null @@ -1,54 +0,0 @@ -/* Unit-specific leds - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_LEDS_H -#define _ASM_UNIT_LEDS_H - -#include <asm/pio-regs.h> -#include <asm/cpu-regs.h> -#include <asm/exceptions.h> - -#define MN10300_USE_7SEGLEDS 0 - -#define ASB2364_7SEGLEDS __SYSREG(0xA9001630, u32) - -/* - * use the 7-segment LEDs to indicate states - */ - -#if MN10300_USE_7SEGLEDS -/* flip the 7-segment LEDs between "Gdb-" and "----" */ -#define mn10300_set_gdbleds(ONOFF) \ - do { \ - ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \ - } while (0) -#else -#define mn10300_set_gdbleds(ONOFF) do {} while (0) -#endif - -#if MN10300_USE_7SEGLEDS -/* indicate double-fault by displaying "db-f" on the LEDs */ -#define mn10300_set_dbfleds \ - mov 0x43077f1d,d0 ; \ - mov d0,(ASB2364_7SEGLEDS) -#else -#define mn10300_set_dbfleds -#endif - -#ifndef __ASSEMBLY__ -extern void peripheral_leds_display_exception(enum exception_code); -extern void peripheral_leds_led_chase(void); -extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int); -extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int); -extern void debug_to_serial(const char *, int); -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_UNIT_LEDS_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/serial.h b/arch/mn10300/unit-asb2364/include/unit/serial.h deleted file mode 100644 index 92f224a97efc..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/serial.h +++ /dev/null @@ -1,151 +0,0 @@ -/* Unit-specific 8250 serial ports - * - * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_UNIT_SERIAL_H -#define _ASM_UNIT_SERIAL_H - -#include <asm/cpu-regs.h> -#include <proc/irq.h> -#include <unit/fpga-regs.h> -#include <linux/serial_reg.h> - -#define SERIAL_PORT0_BASE_ADDRESS 0xA8200000 - -#define SERIAL_IRQ XIRQ1 /* single serial (TL16C550C) (Lo) */ - -/* - * The ASB2364 has an 12.288 MHz clock - * for your UART. - * - * It'd be nice if someone built a serial card with a 24.576 MHz - * clock, since the 16550A is capable of handling a top speed of 1.5 - * megabits/second; but this requires the faster clock. - */ -#define BASE_BAUD (12288000 / 16) - -/* - * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports - */ -#ifndef CONFIG_GDBSTUB_ON_TTYSx - -#define SERIAL_PORT_DFNS \ - { \ - .baud_base = BASE_BAUD, \ - .irq = SERIAL_IRQ, \ - .flags = STD_COM_FLAGS, \ - .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \ - .iomem_reg_shift = 1, \ - .io_type = SERIAL_IO_MEM, \ - }, - -#ifndef __ASSEMBLY__ - -static inline void __debug_to_serial(const char *p, int n) -{ -} - -#endif /* !__ASSEMBLY__ */ - -#else /* CONFIG_GDBSTUB_ON_TTYSx */ - -#define SERIAL_PORT_DFNS /* stolen by gdb-stub */ - -#if defined(CONFIG_GDBSTUB_ON_TTYS0) -#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 2, u8) -#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 2, u8) -#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 2, u8) -#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 2, u8) -#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8) -#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 2, u8) -#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 2, u8) -#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 2, u8) -#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 2, u8) -#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 2, u8) -#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 2, u8) -#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 2, u8) -#define GDBPORT_SERIAL_IRQ SERIAL_IRQ - -#elif defined(CONFIG_GDBSTUB_ON_TTYS1) -#error The ASB2364 does not have a /dev/ttyS1 -#endif - -#ifndef __ASSEMBLY__ - -static inline void __debug_to_serial(const char *p, int n) -{ - char ch; - -#define LSR_WAIT_FOR(STATE) \ - do {} while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) -#define FLOWCTL_QUERY(LINE) \ - ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; }) -#define FLOWCTL_WAIT_FOR(LINE) \ - do {} while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) -#define FLOWCTL_CLEAR(LINE) \ - do { GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; } while (0) -#define FLOWCTL_SET(LINE) \ - do { GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; } while (0) - - FLOWCTL_SET(DTR); - - for (; n > 0; n--) { - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - - ch = *p++; - if (ch == 0x0a) { - GDBPORT_SERIAL_TX = 0x0d; - LSR_WAIT_FOR(THRE); - FLOWCTL_WAIT_FOR(CTS); - } - GDBPORT_SERIAL_TX = ch; - } - - FLOWCTL_CLEAR(DTR); -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* CONFIG_GDBSTUB_ON_TTYSx */ - -#define SERIAL_INITIALIZE \ -do { \ - /* release reset */ \ - ASB2364_FPGA_REG_RESET_UART = 0x0001; \ - SyncExBus(); \ -} while (0) - -#define SERIAL_CHECK_INTERRUPT \ -do { \ - if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) == 0x0001) { \ - return IRQ_NONE; \ - } \ -} while (0) - -#define SERIAL_CLEAR_INTERRUPT \ -do { \ - ASB2364_FPGA_REG_IRQ_UART = 0x0001; \ - SyncExBus(); \ -} while (0) - -#define SERIAL_SET_INT_MASK \ -do { \ - ASB2364_FPGA_REG_MASK_UART = 0x0001; \ - SyncExBus(); \ -} while (0) - -#define SERIAL_CLEAR_INT_MASK \ -do { \ - ASB2364_FPGA_REG_MASK_UART = 0x0000; \ - SyncExBus(); \ -} while (0) - -#endif /* _ASM_UNIT_SERIAL_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/smsc911x.h b/arch/mn10300/unit-asb2364/include/unit/smsc911x.h deleted file mode 100644 index 4c1ede535fa9..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/smsc911x.h +++ /dev/null @@ -1,171 +0,0 @@ -/* Support for the SMSC911x NIC - * - * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_SMSC911X_H -#define _ASM_UNIT_SMSC911X_H - -#include <linux/netdevice.h> -#include <proc/irq.h> -#include <unit/fpga-regs.h> - -#define MN10300_USE_EXT_EEPROM - - -#define SMSC911X_BASE 0xA8000000UL -#define SMSC911X_BASE_END 0xA8000100UL -#define SMSC911X_IRQ FPGA_LAN_IRQ - -/* - * Allow the FPGA to be initialised by the SMSC911x driver - */ -#undef SMSC_INITIALIZE -#define SMSC_INITIALIZE() \ -do { \ - /* release reset */ \ - ASB2364_FPGA_REG_RESET_LAN = 0x0001; \ - SyncExBus(); \ -} while (0) - -#ifdef MN10300_USE_EXT_EEPROM -#include <linux/delay.h> -#include <unit/clock.h> - -#define EEPROM_ADDRESS 0xA0 -#define MAC_OFFSET 0x0008 -#define USE_IIC_CH 0 /* 0 or 1 */ -#define IIC_OFFSET (0x80000 * USE_IIC_CH) -#define IIC_DTRM __SYSREG(0xd8400000 + IIC_OFFSET, u32) -#define IIC_DREC __SYSREG(0xd8400004 + IIC_OFFSET, u32) -#define IIC_MYADD __SYSREG(0xd8400008 + IIC_OFFSET, u32) -#define IIC_CLK __SYSREG(0xd840000c + IIC_OFFSET, u32) -#define IIC_BRST __SYSREG(0xd8400010 + IIC_OFFSET, u32) -#define IIC_HOLD __SYSREG(0xd8400014 + IIC_OFFSET, u32) -#define IIC_BSTS __SYSREG(0xd8400018 + IIC_OFFSET, u32) -#define IIC_ICR __SYSREG(0xd4000080 + 4 * USE_IIC_CH, u16) - -#define IIC_CLK_PLS ((unsigned short)(MN10300_IOCLK / 100000 - 1)) -#define IIC_CLK_LOW ((unsigned short)(IIC_CLK_PLS / 2)) - -#define SYS_IIC_DTRM_Bit_STA ((unsigned short)0x0400) -#define SYS_IIC_DTRM_Bit_STO ((unsigned short)0x0200) -#define SYS_IIC_DTRM_Bit_ACK ((unsigned short)0x0100) -#define SYS_IIC_DTRM_Bit_DATA ((unsigned short)0x00FF) - -static inline void POLL_INT_REQ(volatile u16 *icr) -{ - unsigned long flags; - u16 tmp; - - while (!(*icr & GxICR_REQUEST)) - ; - flags = arch_local_cli_save(); - tmp = *icr; - *icr = (tmp & GxICR_LEVEL) | GxICR_DETECT; - tmp = *icr; - arch_local_irq_restore(flags); -} - -/* - * Implement the SMSC911x hook for MAC address retrieval - */ -#undef smsc_get_mac -static inline int smsc_get_mac(struct net_device *dev) -{ - unsigned char *mac_buf = dev->dev_addr; - int i; - unsigned short value; - unsigned int data; - int mac_length = 6; - int check; - u16 orig_gicr, tmp; - unsigned long flags; - - /* save original GnICR and clear GnICR.IE */ - flags = arch_local_cli_save(); - orig_gicr = IIC_ICR; - IIC_ICR = orig_gicr & GxICR_LEVEL; - tmp = IIC_ICR; - arch_local_irq_restore(flags); - - IIC_MYADD = 0x00000008; - IIC_CLK = (IIC_CLK_LOW << 16) + (IIC_CLK_PLS); - /* bus hung recovery */ - - while (1) { - check = 0; - for (i = 0; i < 3; i++) { - if ((IIC_BSTS & 0x00000003) == 0x00000003) - check++; - udelay(3); - } - - if (check == 3) { - IIC_BRST = 0x00000003; - break; - } else { - for (i = 0; i < 3; i++) { - IIC_BRST = 0x00000002; - udelay(8); - IIC_BRST = 0x00000003; - udelay(8); - } - } - } - - IIC_BRST = 0x00000002; - IIC_BRST = 0x00000003; - - value = SYS_IIC_DTRM_Bit_STA | SYS_IIC_DTRM_Bit_ACK; - value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) | - (unsigned short)0x0000); - IIC_DTRM = value; - POLL_INT_REQ(&IIC_ICR); - - /** send offset of MAC address in EEPROM **/ - IIC_DTRM = (unsigned char)((MAC_OFFSET & 0xFF00) >> 8); - POLL_INT_REQ(&IIC_ICR); - - IIC_DTRM = (unsigned char)(MAC_OFFSET & 0x00FF); - POLL_INT_REQ(&IIC_ICR); - - udelay(1000); - - value = SYS_IIC_DTRM_Bit_STA; - value |= (((unsigned short)EEPROM_ADDRESS & SYS_IIC_DTRM_Bit_DATA) | - (unsigned short)0x0001); - IIC_DTRM = value; - POLL_INT_REQ(&IIC_ICR); - - IIC_DTRM = 0x00000000; - while (mac_length > 0) { - POLL_INT_REQ(&IIC_ICR); - - data = IIC_DREC; - mac_length--; - if (mac_length == 0) - value = 0x00000300; /* stop IIC bus */ - else if (mac_length == 1) - value = 0x00000100; /* no ack */ - else - value = 0x00000000; /* ack */ - IIC_DTRM = value; - *mac_buf++ = (unsigned char)(data & 0xff); - } - - /* restore GnICR.LV and GnICR.IE */ - flags = arch_local_cli_save(); - IIC_ICR = (orig_gicr & (GxICR_LEVEL | GxICR_ENABLE)); - tmp = IIC_ICR; - arch_local_irq_restore(flags); - - return 0; -} -#endif /* MN10300_USE_EXT_EEPROM */ -#endif /* _ASM_UNIT_SMSC911X_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h deleted file mode 100644 index 42f32db75087..000000000000 --- a/arch/mn10300/unit-asb2364/include/unit/timex.h +++ /dev/null @@ -1,155 +0,0 @@ -/* timex.h: MN2WS0038 architecture timer specifications - * - * Copyright (C) 2002, 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _ASM_UNIT_TIMEX_H -#define _ASM_UNIT_TIMEX_H - -#include <asm/timer-regs.h> -#include <unit/clock.h> -#include <asm/param.h> - -/* - * jiffies counter specifications - */ - -#define TMJCBR_MAX 0xffffff /* 24bit */ -#define TMJCIRQ TMTIRQ - -#ifndef __ASSEMBLY__ - -#define MN10300_SRC_IOBCLK MN10300_IOBCLK - -#ifndef HZ -# error HZ undeclared. -#endif /* !HZ */ - -#define MN10300_JCCLK (MN10300_SRC_IOBCLK) -#define MN10300_TSCCLK (MN10300_SRC_IOBCLK) - -#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ) -#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ) - -/* Check bit width of MTM interval value that sets base register */ -#if (MN10300_JC_PER_HZ - 1) > TMJCBR_MAX -# error MTM tick timer interval value is overflow. -#endif - -static inline void stop_jiffies_counter(void) -{ - u16 tmp; - TMTMD = 0; - tmp = TMTMD; -} - -static inline void reload_jiffies_counter(u32 cnt) -{ - u32 tmp; - - TMTBR = cnt; - tmp = TMTBR; - - TMTMD = TMTMD_TMTLDE; - TMTMD = TMTMD_TMTCNE; - tmp = TMTMD; -} - -#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS) && \ - !defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) -/* - * If we aren't using broadcasting, each core needs its own event timer. - * Since CPU0 uses the tick timer which is 24-bits, we use timer 4 & 5 - * cascaded to 32-bits for CPU1 (but only really use 24-bits to match - * CPU0). - */ - -#define TMJC1IRQ TM5IRQ - -static inline void stop_jiffies_counter1(void) -{ - u8 tmp; - TM4MD = 0; - TM5MD = 0; - tmp = TM4MD; - tmp = TM5MD; -} - -static inline void reload_jiffies_counter1(u32 cnt) -{ - u32 tmp; - - TM45BR = cnt; - tmp = TM45BR; - - TM4MD = TM4MD_INIT_COUNTER; - tmp = TM4MD; - - TM5MD = TM5MD_SRC_TM4CASCADE | TM5MD_INIT_COUNTER; - TM5MD = TM5MD_SRC_TM4CASCADE | TM5MD_COUNT_ENABLE; - tmp = TM5MD; - - TM4MD = TM4MD_COUNT_ENABLE; - tmp = TM4MD; -} -#endif /* CONFIG_SMP&GENERIC_CLOCKEVENTS&!GENERIC_CLOCKEVENTS_BROADCAST */ - -#endif /* !__ASSEMBLY__ */ - - -/* - * timestamp counter specifications - */ -#define TMTSCBR_MAX 0xffffffff - -#ifndef __ASSEMBLY__ - -/* Use 32-bit timestamp counter */ -#define TMTSCMD TMSMD -#define TMTSCBR TMSBR -#define TMTSCBC TMSBC -#define TMTSCICR TMSICR - -static inline void startup_timestamp_counter(void) -{ - u32 sync; - - /* set up TMS(Timestamp) 32bit timer register to count real time - * - count down from 4Gig-1 to 0 and wrap at IOBCLK rate - */ - - TMTSCBR = TMTSCBR_MAX; - sync = TMTSCBR; - - TMTSCICR = 0; - sync = TMTSCICR; - - TMTSCMD = TMTMD_TMTLDE; - TMTSCMD = TMTMD_TMTCNE; - sync = TMTSCMD; -} - -static inline void shutdown_timestamp_counter(void) -{ - TMTSCMD = 0; -} - -/* - * we use a cascaded pair of 16-bit down-counting timers to count I/O - * clock cycles for the purposes of time keeping - */ -typedef unsigned long cycles_t; - -static inline cycles_t read_timestamp_counter(void) -{ - return (cycles_t)~TMTSCBC; -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_UNIT_TIMEX_H */ diff --git a/arch/mn10300/unit-asb2364/irq-fpga.c b/arch/mn10300/unit-asb2364/irq-fpga.c deleted file mode 100644 index 073e2ccc4a44..000000000000 --- a/arch/mn10300/unit-asb2364/irq-fpga.c +++ /dev/null @@ -1,108 +0,0 @@ -/* ASB2364 FPGA interrupt multiplexing - * - * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <unit/fpga-regs.h> - -/* - * FPGA PIC operations - */ -static void asb2364_fpga_mask(struct irq_data *d) -{ - ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001; - SyncExBus(); -} - -static void asb2364_fpga_ack(struct irq_data *d) -{ - ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001; - SyncExBus(); -} - -static void asb2364_fpga_mask_ack(struct irq_data *d) -{ - ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001; - SyncExBus(); -} - -static void asb2364_fpga_unmask(struct irq_data *d) -{ - ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0000; - SyncExBus(); -} - -static struct irq_chip asb2364_fpga_pic = { - .name = "fpga", - .irq_ack = asb2364_fpga_ack, - .irq_mask = asb2364_fpga_mask, - .irq_mask_ack = asb2364_fpga_mask_ack, - .irq_unmask = asb2364_fpga_unmask, -}; - -/* - * FPGA PIC interrupt handler - */ -static irqreturn_t fpga_interrupt(int irq, void *_mask) -{ - if ((ASB2364_FPGA_REG_IRQ_LAN & 0x0001) != 0x0001) - generic_handle_irq(FPGA_LAN_IRQ); - if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) != 0x0001) - generic_handle_irq(FPGA_UART_IRQ); - if ((ASB2364_FPGA_REG_IRQ_I2C & 0x0001) != 0x0001) - generic_handle_irq(FPGA_I2C_IRQ); - if ((ASB2364_FPGA_REG_IRQ_USB & 0x0001) != 0x0001) - generic_handle_irq(FPGA_USB_IRQ); - if ((ASB2364_FPGA_REG_IRQ_FPGA & 0x0001) != 0x0001) - generic_handle_irq(FPGA_FPGA_IRQ); - - return IRQ_HANDLED; -} - -/* - * Define an interrupt action for each FPGA PIC output - */ -static struct irqaction fpga_irq[] = { - [0] = { - .handler = fpga_interrupt, - .flags = IRQF_SHARED, - .name = "fpga", - }, -}; - -/* - * Initialise the FPGA's PIC - */ -void __init irq_fpga_init(void) -{ - int irq; - - ASB2364_FPGA_REG_MASK_LAN = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_MASK_UART = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_MASK_I2C = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_MASK_USB = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_MASK_FPGA = 0x0001; - SyncExBus(); - - for (irq = NR_CPU_IRQS; irq < NR_IRQS; irq++) - irq_set_chip_and_handler(irq, &asb2364_fpga_pic, - handle_level_irq); - - /* the FPGA drives the XIRQ1 input on the CPU PIC */ - setup_irq(XIRQ1, &fpga_irq[0]); -} diff --git a/arch/mn10300/unit-asb2364/leds.c b/arch/mn10300/unit-asb2364/leds.c deleted file mode 100644 index 1ff830c372b3..000000000000 --- a/arch/mn10300/unit-asb2364/leds.c +++ /dev/null @@ -1,98 +0,0 @@ -/* leds.c: ASB2364 peripheral 7seg LEDs x4 support - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> - -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/intctl-regs.h> -#include <asm/rtc-regs.h> -#include <unit/leds.h> - -#if MN10300_USE_7SEGLEDS -static const u8 asb2364_led_hex_tbl[16] = { - 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0, - 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c -}; - -static const u32 asb2364_led_chase_tbl[6] = { - ~0x02020202, /* top - segA */ - ~0x04040404, /* right top - segB */ - ~0x08080808, /* right bottom - segC */ - ~0x10101010, /* bottom - segD */ - ~0x20202020, /* left bottom - segE */ - ~0x40404040, /* left top - segF */ -}; - -static unsigned asb2364_led_chase; - -void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) -{ - u32 leds; - - leds = asb2364_led_hex_tbl[(val/1000) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[(val/100) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[(val/10) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[val % 10]; - leds |= points^0x01010101; - - ASB2364_7SEGLEDS = leds; -} - -void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) -{ - u32 leds; - - leds = asb2364_led_hex_tbl[(val/1000) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[(val/100) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[(val/10) % 10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[val % 10]; - leds |= points^0x01010101; - - ASB2364_7SEGLEDS = leds; -} - -/* display triple horizontal bar and exception code */ -void peripheral_leds_display_exception(enum exception_code code) -{ - u32 leds; - - leds = asb2364_led_hex_tbl[(code/0x100) % 0x10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[(code/0x10) % 0x10]; - leds <<= 8; - leds |= asb2364_led_hex_tbl[code % 0x10]; - leds |= 0x6d010101; - - ASB2364_7SEGLEDS = leds; -} - -void peripheral_leds_led_chase(void) -{ - ASB2364_7SEGLEDS = asb2364_led_chase_tbl[asb2364_led_chase]; - asb2364_led_chase++; - if (asb2364_led_chase >= 6) - asb2364_led_chase = 0; -} -#else /* MN10300_USE_7SEGLEDS */ -void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) { } -void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) { } -void peripheral_leds_display_exception(enum exception_code code) { } -void peripheral_leds_led_chase(void) { } -#endif /* MN10300_USE_7SEGLEDS */ diff --git a/arch/mn10300/unit-asb2364/smsc911x.c b/arch/mn10300/unit-asb2364/smsc911x.c deleted file mode 100644 index 544a73e94c81..000000000000 --- a/arch/mn10300/unit-asb2364/smsc911x.c +++ /dev/null @@ -1,58 +0,0 @@ -/* Specification for the SMSC911x NIC - * - * Copyright (C) 2006 Matsushita Electric Industrial Co., Ltd. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/ioport.h> -#include <linux/smsc911x.h> -#include <unit/smsc911x.h> - -static struct smsc911x_platform_config smsc911x_config = { - .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, - .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, - .flags = SMSC911X_USE_32BIT, -}; - -static struct resource smsc911x_resources[] = { - [0] = { - .start = SMSC911X_BASE, - .end = SMSC911X_BASE_END, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = SMSC911X_IRQ, - .end = SMSC911X_IRQ, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smsc911x_device = { - .name = "smsc911x", - .id = 0, - .num_resources = ARRAY_SIZE(smsc911x_resources), - .resource = smsc911x_resources, - .dev = { - .platform_data = &smsc911x_config, - } -}; - -/* - * add platform devices - */ -static int __init unit_device_init(void) -{ - platform_device_register(&smsc911x_device); - return 0; -} - -device_initcall(unit_device_init); diff --git a/arch/mn10300/unit-asb2364/unit-init.c b/arch/mn10300/unit-asb2364/unit-init.c deleted file mode 100644 index 6359b41ce7e9..000000000000 --- a/arch/mn10300/unit-asb2364/unit-init.c +++ /dev/null @@ -1,132 +0,0 @@ -/* ASB2364 initialisation - * - * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/delay.h> - -#include <asm/io.h> -#include <asm/setup.h> -#include <asm/processor.h> -#include <asm/irq.h> -#include <asm/intctl-regs.h> -#include <asm/serial-regs.h> -#include <unit/fpga-regs.h> -#include <unit/serial.h> -#include <unit/smsc911x.h> - -#define TTYS0_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8) -#define LAN_IRQ_CFG __SYSREG(SMSC911X_BASE + 0x54, u32) -#define LAN_INT_EN __SYSREG(SMSC911X_BASE + 0x5c, u32) - -/* - * initialise some of the unit hardware before gdbstub is set up - */ -asmlinkage void __init unit_init(void) -{ - /* Make sure we aren't going to get unexpected interrupts */ - TTYS0_SERIAL_IER = 0; - SC0RXICR = 0; - SC0TXICR = 0; - SC1RXICR = 0; - SC1TXICR = 0; - SC2RXICR = 0; - SC2TXICR = 0; - - /* Attempt to reset the FPGA attached peripherals */ - ASB2364_FPGA_REG_RESET_LAN = 0x0000; - SyncExBus(); - ASB2364_FPGA_REG_RESET_UART = 0x0000; - SyncExBus(); - ASB2364_FPGA_REG_RESET_I2C = 0x0000; - SyncExBus(); - ASB2364_FPGA_REG_RESET_USB = 0x0000; - SyncExBus(); - ASB2364_FPGA_REG_RESET_AV = 0x0000; - SyncExBus(); - - /* set up the external interrupts */ - - /* XIRQ[0]: NAND RXBY */ - /* SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_LOWLEVEL); */ - - /* XIRQ[1]: LAN, UART, I2C, USB, PCI, FPGA */ - SET_XIRQ_TRIGGER(1, XIRQ_TRIGGER_LOWLEVEL); - - /* XIRQ[2]: Extend Slot 1-9 */ - /* SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL); */ - -#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) && \ - defined(CONFIG_ETHERNET_IRQ_LEVEL) && \ - (CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL) -# error CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL -#endif - -#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) - set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL)); -#elif defined(CONFIG_ETHERNET_IRQ_LEVEL) - set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL)); -#endif -} - -/* - * initialise the rest of the unit hardware after gdbstub is ready - */ -asmlinkage void __init unit_setup(void) -{ - /* Release the reset on the SMSC911X so that it is ready by the time we - * need it */ - ASB2364_FPGA_REG_RESET_LAN = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_RESET_UART = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_RESET_I2C = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_RESET_USB = 0x0001; - SyncExBus(); - ASB2364_FPGA_REG_RESET_AV = 0x0001; - SyncExBus(); - - /* Make sure the ethernet chipset isn't going to give us an interrupt - * storm from stuff it was doing pre-reset */ - LAN_IRQ_CFG = 0; - LAN_INT_EN = 0; -} - -/* - * initialise the external interrupts used by a unit of this type - */ -void __init unit_init_IRQ(void) -{ - unsigned int extnum; - - for (extnum = 0 ; extnum < NR_XIRQS ; extnum++) { - switch (GET_XIRQ_TRIGGER(extnum)) { - /* LEVEL triggered interrupts should be made - * post-ACK'able as they hold their lines until - * serviced - */ - case XIRQ_TRIGGER_HILEVEL: - case XIRQ_TRIGGER_LOWLEVEL: - mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum)); - break; - default: - break; - } - } - -#define IRQCTL __SYSREG(0xd5000090, u32) - IRQCTL |= 0x02; - - irq_fpga_init(); -} |