diff options
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 240 |
1 files changed, 137 insertions, 103 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 650de3976e7a..dcae3a7035db 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2,6 +2,7 @@ config MIPS bool default y select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_MIGHT_HAVE_PC_SERIO select HAVE_CONTEXT_TRACKING select HAVE_GENERIC_DMA_COHERENT select HAVE_IDE @@ -47,6 +48,7 @@ config MIPS select MODULES_USE_ELF_RELA if MODULES && 64BIT select CLONE_BACKWARDS select HAVE_DEBUG_STACKOVERFLOW + select HAVE_CC_STACKPROTECTOR menu "Machine selection" @@ -114,7 +116,6 @@ config BCM47XX select CEVT_R4K select CSRC_R4K select DMA_NONCOHERENT - select FW_CFE select HW_HAS_PCI select IRQ_CPU select SYS_HAS_CPU_MIPS32_R1 @@ -122,6 +123,7 @@ config BCM47XX select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_HAS_EARLY_PRINTK + select EARLY_PRINTK_8250 if EARLY_PRINTK help Support for BCM47XX based boards @@ -132,14 +134,13 @@ config BCM63XX select CSRC_R4K select DMA_NONCOHERENT select IRQ_CPU - select SYS_HAS_CPU_MIPS32_R1 - select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN select SYS_HAS_EARLY_PRINTK select SWAP_IO_SPACE select ARCH_REQUIRE_GPIOLIB select HAVE_CLK + select MIPS_L1_CACHE_SHIFT_4 help Support for BCM63XX based boards @@ -184,6 +185,7 @@ config MACH_DECSTATION select SYS_SUPPORTS_128HZ select SYS_SUPPORTS_256HZ select SYS_SUPPORTS_1024HZ + select MIPS_L1_CACHE_SHIFT_4 help This enables support for DEC's MIPS based workstations. For details see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the @@ -303,7 +305,7 @@ config MIPS_MALTA select CEVT_R4K select CSRC_R4K select CSRC_GIC - select DMA_NONCOHERENT + select DMA_MAYBE_COHERENT select GENERIC_ISA_DMA select HAVE_PCSPKR_PLATFORM select IRQ_CPU @@ -322,7 +324,6 @@ config MIPS_MALTA select SYS_HAS_CPU_MIPS64_R2 select SYS_HAS_CPU_NEVADA select SYS_HAS_CPU_RM7000 - select SYS_HAS_EARLY_PRINTK select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN @@ -347,6 +348,7 @@ config MIPS_SEAD3 select DMA_NONCOHERENT select IRQ_CPU select IRQ_GIC + select LIBFDT select MIPS_MSC select SYS_HAS_CPU_MIPS32_R1 select SYS_HAS_CPU_MIPS32_R2 @@ -469,6 +471,7 @@ config SGI_IP22 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_BIG_ENDIAN + select MIPS_L1_CACHE_SHIFT_7 help This are the SGI Indy, Challenge S and Indigo2, as well as certain OEM variants like the Tandem CMN B006S. To compile a Linux kernel @@ -489,6 +492,7 @@ config SGI_IP27 select SYS_SUPPORTS_BIG_ENDIAN select SYS_SUPPORTS_NUMA select SYS_SUPPORTS_SMP + select MIPS_L1_CACHE_SHIFT_7 help This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics workstations. To compile a Linux kernel that runs on these, say Y @@ -695,6 +699,7 @@ config MIKROTIK_RB532 select SWAP_IO_SPACE select BOOT_RAW select ARCH_REQUIRE_GPIOLIB + select MIPS_L1_CACHE_SHIFT_4 help Support the Mikrotik(tm) RouterBoard 532 series, based on the IDT RC32434 SoC. @@ -777,6 +782,7 @@ config NLM_XLP_BOARD select CEVT_R4K select CSRC_R4K select IRQ_CPU + select ARCH_SUPPORTS_MSI select ZONE_DMA32 if 64BIT select SYNC_R4K select SYS_HAS_EARLY_PRINTK @@ -895,6 +901,10 @@ config FW_CFE config ARCH_DMA_ADDR_T_64BIT def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT +config DMA_MAYBE_COHERENT + select DMA_NONCOHERENT + bool + config DMA_COHERENT bool @@ -1089,11 +1099,24 @@ config FW_SNIPROM config BOOT_ELF32 bool +config MIPS_L1_CACHE_SHIFT_4 + bool + +config MIPS_L1_CACHE_SHIFT_5 + bool + +config MIPS_L1_CACHE_SHIFT_6 + bool + +config MIPS_L1_CACHE_SHIFT_7 + bool + config MIPS_L1_CACHE_SHIFT int - default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X - default "6" if MIPS_CPU_SCACHE - default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON + default "4" if MIPS_L1_CACHE_SHIFT_4 + default "5" if MIPS_L1_CACHE_SHIFT_5 + default "6" if MIPS_L1_CACHE_SHIFT_6 + default "7" if MIPS_L1_CACHE_SHIFT_7 default "5" config HAVE_STD_PC_SERIAL_PORT @@ -1373,47 +1396,31 @@ config CPU_CAVIUM_OCTEON select LIBFDT select USE_OF select USB_EHCI_BIG_ENDIAN_MMIO + select SYS_HAS_DMA_OPS + select MIPS_L1_CACHE_SHIFT_7 help The Cavium Octeon processor is a highly integrated chip containing many ethernet hardware widgets for networking tasks. The processor can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. Full details can be found at http://www.caviumnetworks.com. -config CPU_BMIPS3300 - bool "BMIPS3300" - depends on SYS_HAS_CPU_BMIPS3300 - select CPU_BMIPS - help - Broadcom BMIPS3300 processors. - -config CPU_BMIPS4350 - bool "BMIPS4350" - depends on SYS_HAS_CPU_BMIPS4350 - select CPU_BMIPS - select SYS_SUPPORTS_SMP - select SYS_SUPPORTS_HOTPLUG_CPU - help - Broadcom BMIPS4350 ("VIPER") processors. - -config CPU_BMIPS4380 - bool "BMIPS4380" - depends on SYS_HAS_CPU_BMIPS4380 - select CPU_BMIPS - select SYS_SUPPORTS_SMP - select SYS_SUPPORTS_HOTPLUG_CPU - help - Broadcom BMIPS4380 processors. - -config CPU_BMIPS5000 - bool "BMIPS5000" - depends on SYS_HAS_CPU_BMIPS5000 - select CPU_BMIPS +config CPU_BMIPS + bool "Broadcom BMIPS" + depends on SYS_HAS_CPU_BMIPS + select CPU_MIPS32 + select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 + select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 + select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 + select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 + select CPU_SUPPORTS_32BIT_KERNEL + select DMA_NONCOHERENT + select IRQ_CPU + select SWAP_IO_SPACE + select WEAK_ORDERING select CPU_SUPPORTS_HIGHMEM - select MIPS_CPU_SCACHE - select SYS_SUPPORTS_SMP - select SYS_SUPPORTS_HOTPLUG_CPU + select CPU_HAS_PREFETCH help - Broadcom BMIPS5000 processors. + Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. config CPU_XLR bool "Netlogic XLR SoC" @@ -1496,14 +1503,25 @@ config CPU_LOONGSON1 select CPU_SUPPORTS_32BIT_KERNEL select CPU_SUPPORTS_HIGHMEM -config CPU_BMIPS +config CPU_BMIPS32_3300 + select SMP_UP if SMP bool - select CPU_MIPS32 - select CPU_SUPPORTS_32BIT_KERNEL - select DMA_NONCOHERENT - select IRQ_CPU - select SWAP_IO_SPACE - select WEAK_ORDERING + +config CPU_BMIPS4350 + bool + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_HOTPLUG_CPU + +config CPU_BMIPS4380 + bool + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_HOTPLUG_CPU + +config CPU_BMIPS5000 + bool + select MIPS_CPU_SCACHE + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_HOTPLUG_CPU config SYS_HAS_CPU_LOONGSON2E bool @@ -1577,17 +1595,24 @@ config SYS_HAS_CPU_SB1 config SYS_HAS_CPU_CAVIUM_OCTEON bool -config SYS_HAS_CPU_BMIPS3300 +config SYS_HAS_CPU_BMIPS + bool + +config SYS_HAS_CPU_BMIPS32_3300 bool + select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS4350 bool + select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS4380 bool + select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_BMIPS5000 bool + select SYS_HAS_CPU_BMIPS config SYS_HAS_CPU_XLR bool @@ -1795,6 +1820,7 @@ config IP22_CPU_SCACHE config MIPS_CPU_SCACHE bool select BOARD_SCACHE + select MIPS_L1_CACHE_SHIFT_6 config R5000_CPU_SCACHE bool @@ -1831,59 +1857,48 @@ choice prompt "MIPS MT options" config MIPS_MT_DISABLED - bool "Disable multithreading support." + bool "Disable multithreading support" help - Use this option if your workload can't take advantage of - MIPS hardware multithreading support. On systems that don't have - the option of an MT-enabled processor this option will be the only - option in this menu. + Use this option if your platform does not support the MT ASE + which is hardware multithreading support. On systems without + an MT-enabled processor, this will be the only option that is + available in this menu. config MIPS_MT_SMP bool "Use 1 TC on each available VPE for SMP" depends on SYS_SUPPORTS_MULTITHREADING select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI + select SYNC_R4K select MIPS_MT select SMP - select SYS_SUPPORTS_SCHED_SMT if SMP - select SYS_SUPPORTS_SMP select SMP_UP + select SYS_SUPPORTS_SMP + select SYS_SUPPORTS_SCHED_SMT select MIPS_PERF_SHARED_TC_COUNTERS help - This is a kernel model which is known a VSMP but lately has been - marketesed into SMVP. - Virtual SMP uses the processor's VPEs to implement virtual - processors. In currently available configuration of the 34K processor - this allows for a dual processor. Both processors will share the same - primary caches; each will obtain the half of the TLB for it's own - exclusive use. For a layman this model can be described as similar to - what Intel calls Hyperthreading. - - For further information see http://www.linux-mips.org/wiki/34K#VSMP + This is a kernel model which is known as SMVP. This is supported + on cores with the MT ASE and uses the available VPEs to implement + virtual processors which supports SMP. This is equivalent to the + Intel Hyperthreading feature. For further information go to + <http://www.imgtec.com/mips/mips-multithreading.asp>. config MIPS_MT_SMTC - bool "SMTC: Use all TCs on all VPEs for SMP" + bool "Use all TCs on all VPEs for SMP (DEPRECATED)" depends on CPU_MIPS32_R2 - #depends on CPU_MIPS64_R2 # once there is hardware ... depends on SYS_SUPPORTS_MULTITHREADING select CPU_MIPSR2_IRQ_VI select CPU_MIPSR2_IRQ_EI select MIPS_MT - select NR_CPUS_DEFAULT_8 select SMP - select SYS_SUPPORTS_SMP select SMP_UP + select SYS_SUPPORTS_SMP + select NR_CPUS_DEFAULT_8 help - This is a kernel model which is known a SMTC or lately has been - marketesed into SMVP. - is presenting the available TC's of the core as processors to Linux. - On currently available 34K processors this means a Linux system will - see up to 5 processors. The implementation of the SMTC kernel differs - significantly from VSMP and cannot efficiently coexist in the same - kernel binary so the choice between VSMP and SMTC is a compile time - decision. - - For further information see http://www.linux-mips.org/wiki/34K#SMTC + This is a kernel model which is known as SMTC. This is + supported on cores with the MT ASE and presents all TCs + available on all VPEs to support SMP. For further + information see <http://www.linux-mips.org/wiki/34K#SMTC>. endchoice @@ -1920,6 +1935,16 @@ config MIPS_VPE_LOADER Includes a loader for loading an elf relocatable object onto another VPE and running it. +config MIPS_VPE_LOADER_CMP + bool + default "y" + depends on MIPS_VPE_LOADER && MIPS_CMP + +config MIPS_VPE_LOADER_MT + bool + default "y" + depends on MIPS_VPE_LOADER && !MIPS_CMP + config MIPS_MT_SMTC_IM_BACKSTOP bool "Use per-TC register bits as backstop for inhibited IM bits" depends on MIPS_MT_SMTC @@ -1953,24 +1978,29 @@ config MIPS_VPE_LOADER_TOM you to ensure the amount you put in the option and the space your program requires is less or equal to the amount physically present. -# this should possibly be in drivers/char, but it is rather cpu related. Hmmm config MIPS_VPE_APSP_API bool "Enable support for AP/SP API (RTLX)" depends on MIPS_VPE_LOADER help +config MIPS_VPE_APSP_API_CMP + bool + default "y" + depends on MIPS_VPE_APSP_API && MIPS_CMP + +config MIPS_VPE_APSP_API_MT + bool + default "y" + depends on MIPS_VPE_APSP_API && !MIPS_CMP + config MIPS_CMP - bool "MIPS CMP framework support" - depends on SYS_SUPPORTS_MIPS_CMP - select SMP + bool "MIPS CMP support" + depends on SYS_SUPPORTS_MIPS_CMP && MIPS_MT_SMP select SYNC_R4K - select SYS_SUPPORTS_SMP - select SYS_SUPPORTS_SCHED_SMT if SMP select WEAK_ORDERING default n help - This is a placeholder option for the GCMP work. It will need to - be handled differently... + Enable Coherency Manager processor (CMP) support. config SB1_PASS_1_WORKAROUNDS bool @@ -2128,13 +2158,13 @@ config SMP depends on SYS_SUPPORTS_SMP help This enables support for systems with more than one CPU. If you have - a system with only one CPU, like most personal computers, say N. If - you have a system with more than one CPU, say Y. + 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 single and multiprocessor + 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, - singleprocessor machines. On a singleprocessor machine, the kernel + uniprocessor machines. On a uniprocessor machine, the kernel will run faster if you say N here. People using multiprocessor machines who say Y here should also say @@ -2322,18 +2352,22 @@ config SECCOMP If unsure, say Y. Only embedded should say N here. -config CC_STACKPROTECTOR - bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" +config MIPS_O32_FP64_SUPPORT + bool "Support for O32 binaries using 64-bit FP" + depends on 32BIT || MIPS32_O32 + default y help - This option turns on the -fstack-protector GCC feature. This - feature puts, at the beginning of functions, a canary value on - the stack just before the return address, and validates - the value just before actually returning. Stack based buffer - overflows (that need to overwrite this return address) now also - overwrite the canary, which gets detected and the attack is then - neutralized via a kernel panic. + When this is enabled, the kernel will support use of 64-bit floating + point registers with binaries using the O32 ABI along with the + EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On + 32-bit MIPS systems this support is at the cost of increasing the + size and complexity of the compiled FPU emulator. Thus if you are + running a MIPS32 system and know that none of your userland binaries + will require 64-bit floating point, you may wish to reduce the size + of your kernel & potentially improve FP emulation performance by + saying N here. - This feature requires gcc version 4.2 or above. + If unsure, say Y. config USE_OF bool @@ -2442,7 +2476,7 @@ source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" config RAPIDIO - bool "RapidIO support" + tristate "RapidIO support" depends on PCI default n help |