diff options
41 files changed, 458 insertions, 454 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 37ddfcab0003..4b2be611f77f 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -115,7 +115,7 @@ endif quiet_cmd_wrap = WRAP $@ cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) vmlinux quiet_cmd_wrap_initrd = WRAP $@ - cmd_wrap_initrd =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ + cmd_wrap_initrd =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ -i $(obj)/ramdisk.image.gz vmlinux $(obj)/zImage.chrp: vmlinux $(wrapperbits) diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig index 892d5dd3254e..0aba06d7d2ec 100644 --- a/arch/powerpc/configs/cell_defconfig +++ b/arch/powerpc/configs/cell_defconfig @@ -254,6 +254,7 @@ CONFIG_SYN_COOKIES=y CONFIG_INET_TUNNEL=y CONFIG_INET_XFRM_MODE_TRANSPORT=y CONFIG_INET_XFRM_MODE_TUNNEL=y +# CONFIG_INET_XFRM_MODE_BEET is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -275,7 +276,9 @@ CONFIG_INET6_XFRM_TUNNEL=m CONFIG_INET6_TUNNEL=m CONFIG_INET6_XFRM_MODE_TRANSPORT=y CONFIG_INET6_XFRM_MODE_TUNNEL=y +# CONFIG_INET6_XFRM_MODE_BEET is not set # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set +# CONFIG_IPV6_SIT is not set CONFIG_IPV6_TUNNEL=m # CONFIG_IPV6_SUBTREES is not set # CONFIG_IPV6_MULTIPLE_TABLES is not set @@ -406,6 +409,12 @@ CONFIG_BLK_DEV_INITRD=y # CONFIG_ATA_OVER_ETH is not set # +# Misc devices +# +# CONFIG_SGI_IOC4 is not set +# CONFIG_TIFM_CORE is not set + +# # ATA/ATAPI/MFM/RLL support # CONFIG_IDE=y @@ -738,7 +747,6 @@ CONFIG_GEN_RTC=y # TPM devices # # CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set # # I2C support @@ -802,6 +810,7 @@ CONFIG_I2C_ALGOBIT=y # # Dallas's 1-wire bus # +# CONFIG_W1 is not set # # Hardware Monitoring support @@ -810,14 +819,9 @@ CONFIG_I2C_ALGOBIT=y # CONFIG_HWMON_VID is not set # -# Misc devices -# - -# # Multimedia devices # # CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices @@ -923,6 +927,7 @@ CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y # CONFIG_EXT3_FS_POSIX_ACL is not set # CONFIG_EXT3_FS_SECURITY is not set +# CONFIG_EXT4DEV_FS is not set CONFIG_JBD=y # CONFIG_JBD_DEBUG is not set CONFIG_FS_MBCACHE=y @@ -930,6 +935,7 @@ CONFIG_FS_MBCACHE=y # CONFIG_JFS_FS is not set CONFIG_FS_POSIX_ACL=y # CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set @@ -1129,6 +1135,7 @@ CONFIG_DEBUG_FS=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set # CONFIG_FORCED_INLINING is not set +# CONFIG_HEADERS_CHECK is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_DEBUG_STACKOVERFLOW is not set # CONFIG_DEBUG_STACK_USAGE is not set diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 95382f994404..bfd499ee3753 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -18,6 +18,7 @@ #include <asm/oprofile_impl.h> #include <asm/cputable.h> +#include <asm/prom.h> /* for PTRRELOC on ARCH=ppc */ struct cpu_spec* cur_cpu_spec = NULL; EXPORT_SYMBOL(cur_cpu_spec); @@ -73,7 +74,7 @@ extern void __restore_cpu_ppc970(void); #define PPC_FEATURE_SPE_COMP 0 #endif -struct cpu_spec cpu_specs[] = { +static struct cpu_spec cpu_specs[] = { #ifdef CONFIG_PPC64 { /* Power3 */ .pvr_mask = 0xffff0000, @@ -227,6 +228,21 @@ struct cpu_spec cpu_specs[] = { .oprofile_type = PPC_OPROFILE_POWER4, .platform = "ppc970", }, + { /* PPC970GX */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x00450000, + .cpu_name = "PPC970GX", + .cpu_features = CPU_FTRS_PPC970, + .cpu_user_features = COMMON_USER_POWER4 | + PPC_FEATURE_HAS_ALTIVEC_COMP, + .icache_bsize = 128, + .dcache_bsize = 128, + .num_pmcs = 8, + .cpu_setup = __setup_cpu_ppc970, + .oprofile_cpu_type = "ppc64/970", + .oprofile_type = PPC_OPROFILE_POWER4, + .platform = "ppc970", + }, { /* Power5 GR */ .pvr_mask = 0xffff0000, .pvr_value = 0x003a0000, @@ -1152,3 +1168,71 @@ struct cpu_spec cpu_specs[] = { #endif /* !CLASSIC_PPC */ #endif /* CONFIG_PPC32 */ }; + +struct cpu_spec *identify_cpu(unsigned long offset) +{ + struct cpu_spec *s = cpu_specs; + struct cpu_spec **cur = &cur_cpu_spec; + unsigned int pvr = mfspr(SPRN_PVR); + int i; + + s = PTRRELOC(s); + cur = PTRRELOC(cur); + + if (*cur != NULL) + return PTRRELOC(*cur); + + for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++) + if ((pvr & s->pvr_mask) == s->pvr_value) { + *cur = cpu_specs + i; +#ifdef CONFIG_PPC64 + /* ppc64 expects identify_cpu to also call setup_cpu + * for that processor. I will consolidate that at a + * later time, for now, just use our friend #ifdef. + * we also don't need to PTRRELOC the function pointer + * on ppc64 as we are running at 0 in real mode. + */ + if (s->cpu_setup) { + s->cpu_setup(offset, s); + } +#endif /* CONFIG_PPC64 */ + return s; + } + BUG(); + return NULL; +} + +void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end) +{ + struct fixup_entry { + unsigned long mask; + unsigned long value; + long start_off; + long end_off; + } *fcur, *fend; + + fcur = fixup_start; + fend = fixup_end; + + for (; fcur < fend; fcur++) { + unsigned int *pstart, *pend, *p; + + if ((value & fcur->mask) == fcur->value) + continue; + + /* These PTRRELOCs will disappear once the new scheme for + * modules and vdso is implemented + */ + pstart = ((unsigned int *)fcur) + (fcur->start_off / 4); + pend = ((unsigned int *)fcur) + (fcur->end_off / 4); + + for (p = pstart; p < pend; p++) { + *p = 0x60000000u; + asm volatile ("dcbst 0, %0" : : "r" (p)); + } + asm volatile ("sync" : : : "memory"); + for (p = pstart; p < pend; p++) + asm volatile ("icbi 0,%0" : : "r" (p)); + asm volatile ("sync; isync" : : : "memory"); + } +} diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 645c7f10fb28..291e3629b504 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -1580,11 +1580,6 @@ _STATIC(__start_initialization_iSeries) li r0,0 stdu r0,-STACK_FRAME_OVERHEAD(r1) - LOAD_REG_IMMEDIATE(r3,cpu_specs) - LOAD_REG_IMMEDIATE(r4,cur_cpu_spec) - li r5,0 - bl .identify_cpu - LOAD_REG_IMMEDIATE(r2,__toc_start) addi r2,r2,0x4000 addi r2,r2,0x4000 @@ -1646,6 +1641,8 @@ _GLOBAL(__start_initialization_multiplatform) cmpwi r0,0x3c /* 970FX */ beq 1f cmpwi r0,0x44 /* 970MP */ + beq 1f + cmpwi r0,0x45 /* 970GX */ bne 2f 1: bl .__cpu_preinit_ppc970 2: @@ -1964,13 +1961,6 @@ _STATIC(start_here_multiplatform) addi r2,r2,0x4000 add r2,r2,r26 - LOAD_REG_IMMEDIATE(r3, cpu_specs) - add r3,r3,r26 - LOAD_REG_IMMEDIATE(r4,cur_cpu_spec) - add r4,r4,r26 - mr r5,r26 - bl .identify_cpu - /* Do very early kernel initializations, including initial hash table, * stab and slb setup before we turn on relocation. */ @@ -2000,13 +1990,6 @@ _STATIC(start_here_common) li r0,0 stdu r0,-STACK_FRAME_OVERHEAD(r1) - /* Apply the CPUs-specific fixups (nop out sections not relevant - * to this CPU - */ - li r3,0 - bl .do_cpu_ftr_fixups - bl .do_fw_ftr_fixups - /* ptr to current */ LOAD_REG_IMMEDIATE(r4, init_task) std r4,PACACURRENT(r13) diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 88fd73fdf048..412bea3cf813 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -102,80 +102,6 @@ _GLOBAL(reloc_got2) blr /* - * identify_cpu, - * called with r3 = data offset and r4 = CPU number - * doesn't change r3 - */ -_GLOBAL(identify_cpu) - addis r8,r3,cpu_specs@ha - addi r8,r8,cpu_specs@l - mfpvr r7 -1: - lwz r5,CPU_SPEC_PVR_MASK(r8) - and r5,r5,r7 - lwz r6,CPU_SPEC_PVR_VALUE(r8) - cmplw 0,r6,r5 - beq 1f - addi r8,r8,CPU_SPEC_ENTRY_SIZE - b 1b -1: - addis r6,r3,cur_cpu_spec@ha - addi r6,r6,cur_cpu_spec@l - sub r8,r8,r3 - stw r8,0(r6) - blr - -/* - * do_cpu_ftr_fixups - goes through the list of CPU feature fixups - * and writes nop's over sections of code that don't apply for this cpu. - * r3 = data offset (not changed) - */ -_GLOBAL(do_cpu_ftr_fixups) - /* Get CPU 0 features */ - addis r6,r3,cur_cpu_spec@ha - addi r6,r6,cur_cpu_spec@l - lwz r4,0(r6) - add r4,r4,r3 - lwz r4,CPU_SPEC_FEATURES(r4) - - /* Get the fixup table */ - addis r6,r3,__start___ftr_fixup@ha - addi r6,r6,__start___ftr_fixup@l - addis r7,r3,__stop___ftr_fixup@ha - addi r7,r7,__stop___ftr_fixup@l - - /* Do the fixup */ -1: cmplw 0,r6,r7 - bgelr - addi r6,r6,16 - lwz r8,-16(r6) /* mask */ - and r8,r8,r4 - lwz r9,-12(r6) /* value */ - cmplw 0,r8,r9 - beq 1b - lwz r8,-8(r6) /* section begin */ - lwz r9,-4(r6) /* section end */ - subf. r9,r8,r9 - beq 1b - /* write nops over the section of code */ - /* todo: if large section, add a branch at the start of it */ - srwi r9,r9,2 - mtctr r9 - add r8,r8,r3 - lis r0,0x60000000@h /* nop */ -3: stw r0,0(r8) - andi. r10,r4,CPU_FTR_SPLIT_ID_CACHE@l - beq 2f - dcbst 0,r8 /* suboptimal, but simpler */ - sync - icbi 0,r8 -2: addi r8,r8,4 - bdnz 3b - sync /* additional sync needed on g4 */ - isync - b 1b - -/* * call_setup_cpu - call the setup_cpu function for this cpu * r3 = data offset, r24 = cpu number * diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index c70e20708a1f..21fd2c662a99 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -246,130 +246,6 @@ _GLOBAL(__flush_dcache_icache) isync blr -/* - * identify_cpu and calls setup_cpu - * In: r3 = base of the cpu_specs array - * r4 = address of cur_cpu_spec - * r5 = relocation offset - */ -_GLOBAL(identify_cpu) - mfpvr r7 -1: - lwz r8,CPU_SPEC_PVR_MASK(r3) - and r8,r8,r7 - lwz r9,CPU_SPEC_PVR_VALUE(r3) - cmplw 0,r9,r8 - beq 1f - addi r3,r3,CPU_SPEC_ENTRY_SIZE - b 1b -1: - sub r0,r3,r5 - std r0,0(r4) - ld r4,CPU_SPEC_SETUP(r3) - cmpdi 0,r4,0 - add r4,r4,r5 - beqlr - ld r4,0(r4) - add r4,r4,r5 - mtctr r4 - /* Calling convention for cpu setup is r3=offset, r4=cur_cpu_spec */ - mr r4,r3 - mr r3,r5 - bctr - -/* - * do_cpu_ftr_fixups - goes through the list of CPU feature fixups - * and writes nop's over sections of code that don't apply for this cpu. - * r3 = data offset (not changed) - */ -_GLOBAL(do_cpu_ftr_fixups) - /* Get CPU 0 features */ - LOAD_REG_IMMEDIATE(r6,cur_cpu_spec) - sub r6,r6,r3 - ld r4,0(r6) - sub r4,r4,r3 - ld r4,CPU_SPEC_FEATURES(r4) - /* Get the fixup table */ - LOAD_REG_IMMEDIATE(r6,__start___ftr_fixup) - sub r6,r6,r3 - LOAD_REG_IMMEDIATE(r7,__stop___ftr_fixup) - sub r7,r7,r3 - /* Do the fixup */ -1: cmpld r6,r7 - bgelr - addi r6,r6,32 - ld r8,-32(r6) /* mask */ - and r8,r8,r4 - ld r9,-24(r6) /* value */ - cmpld r8,r9 - beq 1b - ld r8,-16(r6) /* section begin */ - ld r9,-8(r6) /* section end */ - subf. r9,r8,r9 - beq 1b - /* write nops over the section of code */ - /* todo: if large section, add a branch at the start of it */ - srwi r9,r9,2 - mtctr r9 - sub r8,r8,r3 - lis r0,0x60000000@h /* nop */ -3: stw r0,0(r8) - andi. r10,r4,CPU_FTR_SPLIT_ID_CACHE@l - beq 2f - dcbst 0,r8 /* suboptimal, but simpler */ - sync - icbi 0,r8 -2: addi r8,r8,4 - bdnz 3b - sync /* additional sync needed on g4 */ - isync - b 1b - -/* - * do_fw_ftr_fixups - goes through the list of firmware feature fixups - * and writes nop's over sections of code that don't apply for this firmware. - * r3 = data offset (not changed) - */ -_GLOBAL(do_fw_ftr_fixups) - /* Get firmware features */ - LOAD_REG_IMMEDIATE(r6,powerpc_firmware_features) - sub r6,r6,r3 - ld r4,0(r6) - /* Get the fixup table */ - LOAD_REG_IMMEDIATE(r6,__start___fw_ftr_fixup) - sub r6,r6,r3 - LOAD_REG_IMMEDIATE(r7,__stop___fw_ftr_fixup) - sub r7,r7,r3 - /* Do the fixup */ -1: cmpld r6,r7 - bgelr - addi r6,r6,32 - ld r8,-32(r6) /* mask */ - and r8,r8,r4 - ld r9,-24(r6) /* value */ - cmpld r8,r9 - beq 1b - ld r8,-16(r6) /* section begin */ - ld r9,-8(r6) /* section end */ - subf. r9,r8,r9 - beq 1b - /* write nops over the section of code */ - /* todo: if large section, add a branch at the start of it */ - srwi r9,r9,2 - mtctr r9 - sub r8,r8,r3 - lis r0,0x60000000@h /* nop */ -3: stw r0,0(r8) -BEGIN_FTR_SECTION - dcbst 0,r8 /* suboptimal, but simpler */ - sync - icbi 0,r8 -END_FTR_SECTION_IFSET(CPU_FTR_SPLIT_ID_CACHE) - addi r8,r8,4 - bdnz 3b - sync /* additional sync needed on g4 */ - isync - b 1b #if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) /* diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c index 92f4e5f64f02..e2c3c6a85f33 100644 --- a/arch/powerpc/kernel/module_32.c +++ b/arch/powerpc/kernel/module_32.c @@ -24,6 +24,8 @@ #include <linux/kernel.h> #include <linux/cache.h> +#include "setup.h" + #if 0 #define DEBUGP printk #else @@ -269,33 +271,50 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, return 0; } +static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + const char *name) +{ + char *secstrings; + unsigned int i; + + secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + for (i = 1; i < hdr->e_shnum; i++) + if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0) + return &sechdrs[i]; + return NULL; +} + int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { - char *secstrings; - unsigned int i; + const Elf_Shdr *sect; me->arch.bug_table = NULL; me->arch.num_bugs = 0; /* Find the __bug_table section, if present */ - secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; - for (i = 1; i < hdr->e_shnum; i++) { - if (strcmp(secstrings+sechdrs[i].sh_name, "__bug_table")) - continue; - me->arch.bug_table = (void *) sechdrs[i].sh_addr; - me->arch.num_bugs = sechdrs[i].sh_size / sizeof(struct bug_entry); - break; + sect = find_section(hdr, sechdrs, "__bug_table"); + if (sect != NULL) { + me->arch.bug_table = (void *) sect->sh_addr; + me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry); } - /* + /* * Strictly speaking this should have a spinlock to protect against * traversals, but since we only traverse on BUG()s, a spinlock * could potentially lead to deadlock and thus be counter-productive. */ list_add(&me->arch.bug_list, &module_bug_list); + /* Apply feature fixups */ + sect = find_section(hdr, sechdrs, "__ftr_fixup"); + if (sect != NULL) + do_feature_fixups(cur_cpu_spec->cpu_features, + (void *)sect->sh_addr, + (void *)sect->sh_addr + sect->sh_size); + return 0; } diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index ba34001fca8e..8dd1f0aae5d6 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -22,6 +22,9 @@ #include <linux/vmalloc.h> #include <asm/module.h> #include <asm/uaccess.h> +#include <asm/firmware.h> + +#include "setup.h" /* FIXME: We don't do .init separately. To do this, we'd need to have a separate r2 value in the init and core section, and stub between @@ -400,6 +403,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, | (value & 0x03fffffc); break; + case R_PPC64_REL64: + /* 64 bits relative (used by features fixups) */ + *location = value - (unsigned long)location; + break; + default: printk("%s: Unknown ADD relocation: %lu\n", me->name, @@ -413,23 +421,33 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, LIST_HEAD(module_bug_list); -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, struct module *me) +static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + const char *name) { char *secstrings; unsigned int i; + secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + for (i = 1; i < hdr->e_shnum; i++) + if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0) + return &sechdrs[i]; + return NULL; +} + +int module_finalize(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, struct module *me) +{ + const Elf_Shdr *sect; + me->arch.bug_table = NULL; me->arch.num_bugs = 0; /* Find the __bug_table section, if present */ - secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; - for (i = 1; i < hdr->e_shnum; i++) { - if (strcmp(secstrings+sechdrs[i].sh_name, "__bug_table")) - continue; - me->arch.bug_table = (void *) sechdrs[i].sh_addr; - me->arch.num_bugs = sechdrs[i].sh_size / sizeof(struct bug_entry); - break; + sect = find_section(hdr, sechdrs, "__bug_table"); + if (sect != NULL) { + me->arch.bug_table = (void *) sect->sh_addr; + me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry); } /* @@ -439,6 +457,19 @@ int module_finalize(const Elf_Ehdr *hdr, */ list_add(&me->arch.bug_list, &module_bug_list); + /* Apply feature fixups */ + sect = find_section(hdr, sechdrs, "__ftr_fixup"); + if (sect != NULL) + do_feature_fixups(cur_cpu_spec->cpu_features, + (void *)sect->sh_addr, + (void *)sect->sh_addr + sect->sh_size); + + sect = find_section(hdr, sechdrs, "__fw_ftr_fixup"); + if (sect != NULL) + do_feature_fixups(powerpc_firmware_features, + (void *)sect->sh_addr, + (void *)sect->sh_addr + sect->sh_size); + return 0; } diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 865b9648d0d5..bdb412d4b748 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -1014,7 +1014,7 @@ EXPORT_SYMBOL(find_all_nodes); /** Checks if the given "compat" string matches one of the strings in * the device's "compatible" property */ -int device_is_compatible(struct device_node *device, const char *compat) +int device_is_compatible(const struct device_node *device, const char *compat) { const char* cp; int cplen, l; @@ -1491,7 +1491,8 @@ static int __init prom_reconfig_setup(void) __initcall(prom_reconfig_setup); #endif -struct property *of_find_property(struct device_node *np, const char *name, +struct property *of_find_property(const struct device_node *np, + const char *name, int *lenp) { struct property *pp; @@ -1512,7 +1513,8 @@ struct property *of_find_property(struct device_node *np, const char *name, * Find a property with a given name for a given node * and return the value. */ -const void *get_property(struct device_node *np, const char *name, int *lenp) +const void *get_property(const struct device_node *np, const char *name, + int *lenp) { struct property *pp = of_find_property(np,name,lenp); return pp ? pp->value : NULL; diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 191d0ab09222..a4c2964a3ca6 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -91,6 +91,7 @@ int ucache_bsize; unsigned long __init early_init(unsigned long dt_ptr) { unsigned long offset = reloc_offset(); + struct cpu_spec *spec; /* First zero the BSS -- use memset_io, some platforms don't have * caches on yet */ @@ -100,8 +101,11 @@ unsigned long __init early_init(unsigned long dt_ptr) * Identify the CPU type and fix up code sections * that depend on which cpu we have. */ - identify_cpu(offset, 0); - do_cpu_ftr_fixups(offset); + spec = identify_cpu(offset); + + do_feature_fixups(spec->cpu_features, + PTRRELOC(&__start___ftr_fixup), + PTRRELOC(&__stop___ftr_fixup)); return KERNELBASE + offset; } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 4b2e32eab9dc..16278968dab6 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -170,6 +170,9 @@ void __init setup_paca(int cpu) void __init early_setup(unsigned long dt_ptr) { + /* Identify CPU type */ + identify_cpu(0); + /* Assume we're on cpu 0 for now. Don't write to the paca yet! */ setup_paca(0); @@ -348,6 +351,14 @@ void __init setup_system(void) { DBG(" -> setup_system()\n"); + /* Apply the CPUs-specific and firmware specific fixups to kernel + * text (nop out sections not relevant to this CPU or this firmware) + */ + do_feature_fixups(cur_cpu_spec->cpu_features, + &__start___ftr_fixup, &__stop___ftr_fixup); + do_feature_fixups(powerpc_firmware_features, + &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); + /* * Unflatten the device-tree passed by prom_init or kexec */ diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 5b59bc18dfe7..a1b5e4b16151 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -220,11 +220,8 @@ static void account_process_time(struct pt_regs *regs) */ struct cpu_purr_data { int initialized; /* thread is running */ - u64 tb0; /* timebase at origin time */ - u64 purr0; /* PURR at origin time */ u64 tb; /* last TB value read */ u64 purr; /* last PURR value read */ - u64 stolen; /* stolen time so far */ spinlock_t lock; }; @@ -234,10 +231,8 @@ static void snapshot_tb_and_purr(void *data) { struct cpu_purr_data *p = &__get_cpu_var(cpu_purr_data); - p->tb0 = mftb(); - p->purr0 = mfspr(SPRN_PURR); - p->tb = p->tb0; - p->purr = 0; + p->tb = mftb(); + p->purr = mfspr(SPRN_PURR); wmb(); p->initialized = 1; } @@ -258,37 +253,24 @@ void snapshot_timebases(void) void calculate_steal_time(void) { - u64 tb, purr, t0; + u64 tb, purr; s64 stolen; - struct cpu_purr_data *p0, *pme, *phim; - int cpu; + struct cpu_purr_data *pme; if (!cpu_has_feature(CPU_FTR_PURR)) return; - cpu = smp_processor_id(); - pme = &per_cpu(cpu_purr_data, cpu); + pme = &per_cpu(cpu_purr_data, smp_processor_id()); if (!pme->initialized) return; /* this can happen in early boot */ - p0 = &per_cpu(cpu_purr_data, cpu & ~1); - phim = &per_cpu(cpu_purr_data, cpu ^ 1); - spin_lock(&p0->lock); + spin_lock(&pme->lock); tb = mftb(); - purr = mfspr(SPRN_PURR) - pme->purr0; - if (!phim->initialized || !cpu_online(cpu ^ 1)) { - stolen = (tb - pme->tb) - (purr - pme->purr); - } else { - t0 = pme->tb0; - if (phim->tb0 < t0) - t0 = phim->tb0; - stolen = phim->tb - t0 - phim->purr - purr - p0->stolen; - } - if (stolen > 0) { + purr = mfspr(SPRN_PURR); + stolen = (tb - pme->tb) - (purr - pme->purr); + if (stolen > 0) account_steal_time(current, stolen); - p0->stolen += stolen; - } pme->tb = tb; pme->purr = purr; - spin_unlock(&p0->lock); + spin_unlock(&pme->lock); } /* @@ -297,30 +279,17 @@ void calculate_steal_time(void) */ static void snapshot_purr(void) { - int cpu; - u64 purr; - struct cpu_purr_data *p0, *pme, *phim; + struct cpu_purr_data *pme; unsigned long flags; if (!cpu_has_feature(CPU_FTR_PURR)) return; - cpu = smp_processor_id(); - pme = &per_cpu(cpu_purr_data, cpu); - p0 = &per_cpu(cpu_purr_data, cpu & ~1); - phim = &per_cpu(cpu_purr_data, cpu ^ 1); - spin_lock_irqsave(&p0->lock, flags); - pme->tb = pme->tb0 = mftb(); - purr = mfspr(SPRN_PURR); - if (!phim->initialized) { - pme->purr = 0; - pme->purr0 = purr; - } else { - /* set p->purr and p->purr0 for no change in p0->stolen */ - pme->purr = phim->tb - phim->tb0 - phim->purr - p0->stolen; - pme->purr0 = purr - pme->purr; - } + pme = &per_cpu(cpu_purr_data, smp_processor_id()); + spin_lock_irqsave(&pme->lock, flags); + pme->tb = mftb(); + pme->purr = mfspr(SPRN_PURR); pme->initialized = 1; - spin_unlock_irqrestore(&p0->lock, flags); + spin_unlock_irqrestore(&pme->lock, flags); } #endif /* CONFIG_PPC_SPLPAR */ diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 1a7e19cdab39..c913ad5cad29 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -36,6 +36,8 @@ #include <asm/vdso.h> #include <asm/vdso_datapage.h> +#include "setup.h" + #undef DEBUG #ifdef DEBUG @@ -586,6 +588,43 @@ static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32, return 0; } + +static __init int vdso_fixup_features(struct lib32_elfinfo *v32, + struct lib64_elfinfo *v64) +{ + void *start32; + unsigned long size32; + +#ifdef CONFIG_PPC64 + void *start64; + unsigned long size64; + + start64 = find_section64(v64->hdr, "__ftr_fixup", &size64); + if (start64) + do_feature_fixups(cur_cpu_spec->cpu_features, + start64, start64 + size64); + + start64 = find_section64(v64->hdr, "__fw_ftr_fixup", &size64); + if (start64) + do_feature_fixups(powerpc_firmware_features, + start64, start64 + size64); +#endif /* CONFIG_PPC64 */ + + start32 = find_section32(v32->hdr, "__ftr_fixup", &size32); + if (start32) + do_feature_fixups(cur_cpu_spec->cpu_features, + start32, start32 + size32); + +#ifdef CONFIG_PPC64 + start32 = find_section32(v32->hdr, "__fw_ftr_fixup", &size32); + if (start32) + do_feature_fixups(powerpc_firmware_features, + start32, start32 + size32); +#endif /* CONFIG_PPC64 */ + + return 0; +} + static __init int vdso_fixup_alt_funcs(struct lib32_elfinfo *v32, struct lib64_elfinfo *v64) { @@ -634,6 +673,9 @@ static __init int vdso_setup(void) if (vdso_fixup_datapage(&v32, &v64)) return -1; + if (vdso_fixup_features(&v32, &v64)) + return -1; + if (vdso_fixup_alt_funcs(&v32, &v64)) return -1; @@ -714,6 +756,7 @@ void __init vdso_init(void) * Setup the syscall map in the vDOS */ vdso_setup_syscall_map(); + /* * Initialize the vDSO images in memory, that is do necessary * fixups of vDSO symbols, locate trampolines, etc... diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S index 6187af2d54c3..26e138c4ce17 100644 --- a/arch/powerpc/kernel/vdso32/vdso32.lds.S +++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S @@ -32,6 +32,18 @@ SECTIONS PROVIDE (_etext = .); PROVIDE (etext = .); + . = ALIGN(8); + __ftr_fixup : { + *(__ftr_fixup) + } + +#ifdef CONFIG_PPC64 + . = ALIGN(8); + __fw_ftr_fixup : { + *(__fw_ftr_fixup) + } +#endif + /* Other stuff is appended to the text segment: */ .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } .rodata1 : { *(.rodata1) } diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S index 56e76ff5498f..40ffd9b6cef7 100644 --- a/arch/powerpc/kernel/vdso64/gettimeofday.S +++ b/arch/powerpc/kernel/vdso64/gettimeofday.S @@ -229,8 +229,10 @@ V_FUNCTION_BEGIN(__do_get_xsec) xor r0,r8,r8 /* create dependency */ add r3,r3,r0 - /* Get TB & offset it */ - mftb r7 + /* Get TB & offset it. We use the MFTB macro which will generate + * workaround code for Cell. + */ + MFTB(r7) ld r9,CFG_TB_ORIG_STAMP(r3) subf r7,r9,r7 diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S index 4a2b6dc0960c..2d70f35d50b5 100644 --- a/arch/powerpc/kernel/vdso64/vdso64.lds.S +++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S @@ -31,6 +31,16 @@ SECTIONS PROVIDE (_etext = .); PROVIDE (etext = .); + . = ALIGN(8); + __ftr_fixup : { + *(__ftr_fixup) + } + + . = ALIGN(8); + __fw_ftr_fixup : { + *(__fw_ftr_fixup) + } + /* Other stuff is appended to the text segment: */ .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } .rodata1 : { *(.rodata1) } diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c index 506f6b79f893..6a927effcc77 100644 --- a/arch/powerpc/oprofile/op_model_power4.c +++ b/arch/powerpc/oprofile/op_model_power4.c @@ -76,7 +76,7 @@ static inline int mmcra_must_set_sample(void) { if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p) || __is_processor(PV_970) || __is_processor(PV_970FX) || - __is_processor(PV_970MP)) + __is_processor(PV_970MP) || __is_processor(PV_970GX)) return 1; return 0; diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 0de8e114e6b6..533e2723e184 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -385,7 +385,7 @@ static ssize_t spufs_mbox_read(struct file *file, char __user *buf, udata = (void __user *)buf; spu_acquire(ctx); - for (count = 0; count <= len; count += 4, udata++) { + for (count = 0; (count + 4) <= len; count += 4, udata++) { int ret; ret = ctx->ops->mbox_read(ctx, &mbox_data); if (ret == 0) diff --git a/arch/powerpc/platforms/cell/spufs/hw_ops.c b/arch/powerpc/platforms/cell/spufs/hw_ops.c index efc452e71ab0..d805ffed892d 100644 --- a/arch/powerpc/platforms/cell/spufs/hw_ops.c +++ b/arch/powerpc/platforms/cell/spufs/hw_ops.c @@ -147,7 +147,7 @@ static void spu_hw_signal1_write(struct spu_context *ctx, u32 data) static u32 spu_hw_signal2_read(struct spu_context *ctx) { - return in_be32(&ctx->spu->problem->signal_notify1); + return in_be32(&ctx->spu->problem->signal_notify2); } static void spu_hw_signal2_write(struct spu_context *ctx, u32 data) diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index cae3d13229b9..49b8dabcbc99 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -477,8 +477,10 @@ static void __init chrp_find_8259(void) " address, polling\n"); i8259_init(pic, chrp_int_ack); - if (ppc_md.get_irq == NULL) + if (ppc_md.get_irq == NULL) { ppc_md.get_irq = i8259_irq; + irq_set_default_host(i8259_get_host()); + } if (chrp_mpic != NULL) { cascade_irq = irq_of_parse_and_map(pic, 0); if (cascade_irq == NO_IRQ) diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c index a0ff7ba7d666..6f73469fd3b0 100644 --- a/arch/powerpc/platforms/iseries/setup.c +++ b/arch/powerpc/platforms/iseries/setup.c @@ -694,6 +694,11 @@ void * __init iSeries_early_setup(void) { unsigned long phys_mem_size; + /* Identify CPU type. This is done again by the common code later + * on but calling this function multiple times is fine. + */ + identify_cpu(0); + powerpc_firmware_features |= FW_FEATURE_ISERIES; powerpc_firmware_features |= FW_FEATURE_LPAR; diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S index 1174ca128efa..adee28da353f 100644 --- a/arch/powerpc/platforms/powermac/sleep.S +++ b/arch/powerpc/platforms/powermac/sleep.S @@ -45,7 +45,8 @@ .section .text .align 5 -#if defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ_PMAC) +#if defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ_PMAC) || \ + (defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32)) /* This gets called by via-pmu.c late during the sleep process. * The PMU was already send the sleep command and will shut us down diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c index 0450265d73bb..ad87adc975bc 100644 --- a/arch/powerpc/sysdev/i8259.c +++ b/arch/powerpc/sysdev/i8259.c @@ -224,6 +224,11 @@ static struct irq_host_ops i8259_host_ops = { .xlate = i8259_host_xlate, }; +struct irq_host *i8259_get_host(void) +{ + return i8259_host; +} + /** * i8259_init - Initialize the legacy controller * @node: device node of the legacy PIC (can be NULL, but then, it will match diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c index bc4d4a7f9657..746f78c15375 100644 --- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -473,9 +473,9 @@ static int ipic_set_irq_type(unsigned int virq, unsigned int flow_type) desc->status |= flow_type & IRQ_TYPE_SENSE_MASK; if (flow_type & IRQ_TYPE_LEVEL_LOW) { desc->status |= IRQ_LEVEL; - set_irq_handler(virq, handle_level_irq); + desc->handle_irq = handle_level_irq; } else { - set_irq_handler(virq, handle_edge_irq); + desc->handle_irq = handle_edge_irq; } /* only EXT IRQ senses are programmable on ipic diff --git a/arch/powerpc/sysdev/qe_lib/ucc.c b/arch/powerpc/sysdev/qe_lib/ucc.c index 916c9e5df57f..ac12a44d516f 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc.c +++ b/arch/powerpc/sysdev/qe_lib/ucc.c @@ -207,6 +207,7 @@ int ucc_set_qe_mux_rxtx(int ucc_num, enum qe_clock clock, enum comm_dir mode) case QE_CLK18: source = 8; break; case QE_CLK7: source = 9; break; case QE_CLK8: source = 10; break; + case QE_CLK16: source = 11; break; default: source = -1; break; } break; @@ -222,6 +223,7 @@ int ucc_set_qe_mux_rxtx(int ucc_num, enum qe_clock clock, enum comm_dir mode) case QE_CLK22: source = 8; break; case QE_CLK7: source = 9; break; case QE_CLK8: source = 10; break; + case QE_CLK16: source = 11; break; default: source = -1; break; } break; diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c index c2be7348fcbd..75fa3104a43a 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c +++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c @@ -163,7 +163,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc /* check if the UCC port number is in range. */ if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) { - uccf_err("ucc_fast_init: Illagal UCC number!"); + uccf_err("ucc_fast_init: Illegal UCC number!"); return -EINVAL; } diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c index 1fb88ef7cf06..a49da6b73ecf 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c +++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c @@ -152,7 +152,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc /* check if the UCC port number is in range. */ if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) { - uccs_err("ucc_slow_init: Illagal UCC number!"); + uccs_err("ucc_slow_init: Illegal UCC number!"); return -EINVAL; } diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c index 11de090eb901..97f37ef4bbbf 100644 --- a/arch/powerpc/sysdev/tsi108_dev.c +++ b/arch/powerpc/sysdev/tsi108_dev.c @@ -48,7 +48,7 @@ phys_addr_t get_csrbase(void) tsi = of_find_node_by_type(NULL, "tsi-bridge"); if (tsi) { unsigned int size; - void *prop = get_property(tsi, "reg", &size); + const void *prop = get_property(tsi, "reg", &size); tsi108_csr_base = of_translate_address(tsi, prop); of_node_put(tsi); }; @@ -79,7 +79,7 @@ static int __init tsi108_eth_of_init(void) hw_info tsi_eth_data; unsigned int *id; unsigned int *phy_id; - void *mac_addr; + const void *mac_addr; phandle *ph; memset(r, 0, sizeof(r)); diff --git a/arch/ppc/boot/simple/relocate.S b/arch/ppc/boot/simple/relocate.S index 0c021556d78e..1bbbcd2f2bcb 100644 --- a/arch/ppc/boot/simple/relocate.S +++ b/arch/ppc/boot/simple/relocate.S @@ -154,8 +154,8 @@ do_relocate_out: start_ldr: /* Clear all of BSS and set up stack for C calls */ - lis r3,edata@h - ori r3,r3,edata@l + lis r3,__bss_start@h + ori r3,r3,__bss_start@l lis r4,end@h ori r4,r4,end@l subi r3,r3,4 @@ -163,7 +163,7 @@ start_ldr: li r0,0 50: stwu r0,4(r3) cmpw cr0,r3,r4 - bne 50b + blt 50b 90: mr r9,r1 /* Save old stack pointer (in case it matters) */ lis r1,.stack@h ori r1,r1,.stack@l diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S index 5f6684012ded..d319f9ba2379 100644 --- a/arch/ppc/kernel/misc.S +++ b/arch/ppc/kernel/misc.S @@ -110,80 +110,6 @@ _GLOBAL(reloc_got2) blr /* - * identify_cpu, - * called with r3 = data offset and r4 = CPU number - * doesn't change r3 - */ -_GLOBAL(identify_cpu) - addis r8,r3,cpu_specs@ha - addi r8,r8,cpu_specs@l - mfpvr r7 -1: - lwz r5,CPU_SPEC_PVR_MASK(r8) - and r5,r5,r7 - lwz r6,CPU_SPEC_PVR_VALUE(r8) - cmplw 0,r6,r5 - beq 1f - addi r8,r8,CPU_SPEC_ENTRY_SIZE - b 1b -1: - addis r6,r3,cur_cpu_spec@ha - addi r6,r6,cur_cpu_spec@l - sub r8,r8,r3 - stw r8,0(r6) - blr - -/* - * do_cpu_ftr_fixups - goes through the list of CPU feature fixups - * and writes nop's over sections of code that don't apply for this cpu. - * r3 = data offset (not changed) - */ -_GLOBAL(do_cpu_ftr_fixups) - /* Get CPU 0 features */ - addis r6,r3,cur_cpu_spec@ha - addi r6,r6,cur_cpu_spec@l - lwz r4,0(r6) - add r4,r4,r3 - lwz r4,CPU_SPEC_FEATURES(r4) - - /* Get the fixup table */ - addis r6,r3,__start___ftr_fixup@ha - addi r6,r6,__start___ftr_fixup@l - addis r7,r3,__stop___ftr_fixup@ha - addi r7,r7,__stop___ftr_fixup@l - - /* Do the fixup */ -1: cmplw 0,r6,r7 - bgelr - addi r6,r6,16 - lwz r8,-16(r6) /* mask */ - and r8,r8,r4 - lwz r9,-12(r6) /* value */ - cmplw 0,r8,r9 - beq 1b - lwz r8,-8(r6) /* section begin */ - lwz r9,-4(r6) /* section end */ - subf. r9,r8,r9 - beq 1b - /* write nops over the section of code */ - /* todo: if large section, add a branch at the start of it */ - srwi r9,r9,2 - mtctr r9 - add r8,r8,r3 - lis r0,0x60000000@h /* nop */ -3: stw r0,0(r8) - andi. r10,r4,CPU_FTR_SPLIT_ID_CACHE@l - beq 2f - dcbst 0,r8 /* suboptimal, but simpler */ - sync - icbi 0,r8 -2: addi r8,r8,4 - bdnz 3b - sync /* additional sync needed on g4 */ - isync - b 1b - -/* * call_setup_cpu - call the setup_cpu function for this cpu * r3 = data offset, r24 = cpu number * diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c index 75fe13815be2..27faeca2c7a2 100644 --- a/arch/ppc/kernel/setup.c +++ b/arch/ppc/kernel/setup.c @@ -38,6 +38,7 @@ #include <asm/nvram.h> #include <asm/xmon.h> #include <asm/ocp.h> +#include <asm/prom.h> #define USES_PPC_SYS (defined(CONFIG_85xx) || defined(CONFIG_83xx) || \ defined(CONFIG_MPC10X_BRIDGE) || defined(CONFIG_8260) || \ @@ -53,8 +54,6 @@ extern void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7); -extern void identify_cpu(unsigned long offset, unsigned long cpu); -extern void do_cpu_ftr_fixups(unsigned long offset); extern void reloc_got2(unsigned long offset); extern void ppc6xx_idle(void); @@ -301,6 +300,7 @@ early_init(int r3, int r4, int r5) { unsigned long phys; unsigned long offset = reloc_offset(); + struct cpu_spec *spec; /* Default */ phys = offset + KERNELBASE; @@ -313,8 +313,10 @@ early_init(int r3, int r4, int r5) * Identify the CPU type and fix up code sections * that depend on which cpu we have. */ - identify_cpu(offset, 0); - do_cpu_ftr_fixups(offset); + spec = identify_cpu(offset); + do_feature_fixups(spec->cpu_features, + PTRRELOC(&__start___ftr_fixup), + PTRRELOC(&__stop___ftr_fixup)); return phys; } diff --git a/include/asm-powerpc/asm-compat.h b/include/asm-powerpc/asm-compat.h index 8e64be0cc47d..c89bd58ee283 100644 --- a/include/asm-powerpc/asm-compat.h +++ b/include/asm-powerpc/asm-compat.h @@ -14,6 +14,58 @@ # define ASM_CONST(x) __ASM_CONST(x) #endif + +/* + * Feature section common macros + * + * Note that the entries now contain offsets between the table entry + * and the code rather than absolute code pointers in order to be + * useable with the vdso shared library. There is also an assumption + * that values will be negative, that is, the fixup table has to be + * located after the code it fixes up. + */ +#ifdef CONFIG_PPC64 +#ifdef __powerpc64__ +/* 64 bits kernel, 64 bits code */ +#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ +99: \ + .section sect,"a"; \ + .align 3; \ +98: \ + .llong msk; \ + .llong val; \ + .llong label##b-98b; \ + .llong 99b-98b; \ + .previous +#else /* __powerpc64__ */ +/* 64 bits kernel, 32 bits code (ie. vdso32) */ +#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ +99: \ + .section sect,"a"; \ + .align 3; \ +98: \ + .llong msk; \ + .llong val; \ + .long 0xffffffff; \ + .long label##b-98b; \ + .long 0xffffffff; \ + .long 99b-98b; \ + .previous +#endif /* !__powerpc64__ */ +#else /* CONFIG_PPC64 */ +/* 32 bits kernel, 32 bits code */ +#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \ +99: \ + .section sect,"a"; \ + .align 2; \ +98: \ + .long msk; \ + .long val; \ + .long label##b-98b; \ + .long 99b-98b; \ + .previous +#endif /* !CONFIG_PPC64 */ + #ifdef __powerpc64__ /* operations for longs and pointers */ diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h index 12707ab9dc98..a9a40149a7c0 100644 --- a/include/asm-powerpc/cputable.h +++ b/include/asm-powerpc/cputable.h @@ -89,8 +89,11 @@ struct cpu_spec { extern struct cpu_spec *cur_cpu_spec; -extern void identify_cpu(unsigned long offset, unsigned long cpu); -extern void do_cpu_ftr_fixups(unsigned long offset); +extern unsigned int __start___ftr_fixup, __stop___ftr_fixup; + +extern struct cpu_spec *identify_cpu(unsigned long offset); +extern void do_feature_fixups(unsigned long value, void *fixup_start, + void *fixup_end); #endif /* __ASSEMBLY__ */ @@ -144,6 +147,7 @@ extern void do_cpu_ftr_fixups(unsigned long offset); #define CPU_FTR_CI_LARGE_PAGE LONG_ASM_CONST(0x0000100000000000) #define CPU_FTR_PAUSE_ZERO LONG_ASM_CONST(0x0000200000000000) #define CPU_FTR_PURR LONG_ASM_CONST(0x0000400000000000) +#define CPU_FTR_CELL_TB_BUG LONG_ASM_CONST(0x0000800000000000) #ifndef __ASSEMBLY__ @@ -332,7 +336,7 @@ extern void do_cpu_ftr_fixups(unsigned long offset); #define CPU_FTRS_CELL (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \ - CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE) + CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE | CPU_FTR_CELL_TB_BUG) #define CPU_FTRS_PA6T (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_CI_LARGE_PAGE | \ @@ -431,29 +435,12 @@ static inline int cpu_has_feature(unsigned long feature) #ifdef __ASSEMBLY__ -#define BEGIN_FTR_SECTION 98: - -#ifndef __powerpc64__ +#define BEGIN_FTR_SECTION_NESTED(label) label: +#define BEGIN_FTR_SECTION BEGIN_FTR_SECTION_NESTED(97) +#define END_FTR_SECTION_NESTED(msk, val, label) \ + MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup) #define END_FTR_SECTION(msk, val) \ -99: \ - .section __ftr_fixup,"a"; \ - .align 2; \ - .long msk; \ - .long val; \ - .long 98b; \ - .long 99b; \ - .previous -#else /* __powerpc64__ */ -#define END_FTR_SECTION(msk, val) \ -99: \ - .section __ftr_fixup,"a"; \ - .align 3; \ - .llong msk; \ - .llong val; \ - .llong 98b; \ - .llong 99b; \ - .previous -#endif /* __powerpc64__ */ + END_FTR_SECTION_NESTED(msk, val, 97) #define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk)) #define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0) diff --git a/include/asm-powerpc/firmware.h b/include/asm-powerpc/firmware.h index 1022737f4f34..fdf9aff71150 100644 --- a/include/asm-powerpc/firmware.h +++ b/include/asm-powerpc/firmware.h @@ -96,19 +96,16 @@ extern void machine_check_fwnmi(void); /* This is true if we are using the firmware NMI handler (typically LPAR) */ extern int fwnmi_active; -#else /* __ASSEMBLY__ */ +extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup; -#define BEGIN_FW_FTR_SECTION 96: +#else /* __ASSEMBLY__ */ +#define BEGIN_FW_FTR_SECTION_NESTED(label) label: +#define BEGIN_FW_FTR_SECTION BEGIN_FW_FTR_SECTION_NESTED(97) +#define END_FW_FTR_SECTION_NESTED(msk, val, label) \ + MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup) #define END_FW_FTR_SECTION(msk, val) \ -97: \ - .section __fw_ftr_fixup,"a"; \ - .align 3; \ - .llong msk; \ - .llong val; \ - .llong 96b; \ - .llong 97b; \ - .previous + END_FW_FTR_SECTION_NESTED(msk, val, 97) #define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk)) #define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0) diff --git a/include/asm-powerpc/i8259.h b/include/asm-powerpc/i8259.h index 78489fb8d140..db1362f8c603 100644 --- a/include/asm-powerpc/i8259.h +++ b/include/asm-powerpc/i8259.h @@ -7,6 +7,7 @@ #ifdef CONFIG_PPC_MERGE extern void i8259_init(struct device_node *node, unsigned long intack_addr); extern unsigned int i8259_irq(void); +extern struct irq_host *i8259_get_host(void); #else extern void i8259_init(unsigned long intack_addr, int offset); extern int i8259_irq(void); diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h index a940cfe040da..fa083d8e4663 100644 --- a/include/asm-powerpc/ppc_asm.h +++ b/include/asm-powerpc/ppc_asm.h @@ -30,9 +30,9 @@ BEGIN_FTR_SECTION; \ mfspr ra,SPRN_PURR; /* get processor util. reg */ \ END_FTR_SECTION_IFSET(CPU_FTR_PURR); \ BEGIN_FTR_SECTION; \ - mftb ra; /* or get TB if no PURR */ \ + MFTB(ra); /* or get TB if no PURR */ \ END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \ - ld rb,PACA_STARTPURR(r13); \ + ld rb,PACA_STARTPURR(r13); \ std ra,PACA_STARTPURR(r13); \ subf rb,rb,ra; /* subtract start value */ \ ld ra,PACA_USER_TIME(r13); \ @@ -45,9 +45,9 @@ BEGIN_FTR_SECTION; \ mfspr ra,SPRN_PURR; /* get processor util. reg */ \ END_FTR_SECTION_IFSET(CPU_FTR_PURR); \ BEGIN_FTR_SECTION; \ - mftb ra; /* or get TB if no PURR */ \ + MFTB(ra); /* or get TB if no PURR */ \ END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \ - ld rb,PACA_STARTPURR(r13); \ + ld rb,PACA_STARTPURR(r13); \ std ra,PACA_STARTPURR(r13); \ subf rb,rb,ra; /* subtract start value */ \ ld ra,PACA_SYSTEM_TIME(r13); \ @@ -274,6 +274,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_601) #define ISYNC_601 #endif +#ifdef CONFIG_PPC_CELL +#define MFTB(dest) \ +90: mftb dest; \ +BEGIN_FTR_SECTION_NESTED(96); \ + cmpwi dest,0; \ + beq- 90b; \ +END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96) +#else +#define MFTB(dest) mftb dest +#endif #ifndef CONFIG_SMP #define TLBSYNC diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h index 524629769336..ec11d44eaeb5 100644 --- a/include/asm-powerpc/prom.h +++ b/include/asm-powerpc/prom.h @@ -134,7 +134,7 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev); extern struct device_node *of_get_parent(const struct device_node *node); extern struct device_node *of_get_next_child(const struct device_node *node, struct device_node *prev); -extern struct property *of_find_property(struct device_node *np, +extern struct property *of_find_property(const struct device_node *np, const char *name, int *lenp); extern struct device_node *of_node_get(struct device_node *node); @@ -158,10 +158,12 @@ extern void of_detach_node(const struct device_node *); extern void finish_device_tree(void); extern void unflatten_device_tree(void); extern void early_init_devtree(void *); -extern int device_is_compatible(struct device_node *device, const char *); +extern int device_is_compatible(const struct device_node *device, + const char *); extern int machine_is_compatible(const char *compat); -extern const void *get_property(struct device_node *node, const char *name, - int *lenp); +extern const void *get_property(const struct device_node *node, + const char *name, + int *lenp); extern void print_properties(struct device_node *node); extern int prom_n_addr_cells(struct device_node* np); extern int prom_n_size_cells(struct device_node* np); diff --git a/include/asm-powerpc/reg.h b/include/asm-powerpc/reg.h index 8fb96811b55d..6faae7b14d55 100644 --- a/include/asm-powerpc/reg.h +++ b/include/asm-powerpc/reg.h @@ -591,6 +591,7 @@ #define PV_630 0x0040 #define PV_630p 0x0041 #define PV_970MP 0x0044 +#define PV_970GX 0x0045 #define PV_BE 0x0070 #define PV_PA6T 0x0090 @@ -618,10 +619,35 @@ : "=r" (rval)); rval;}) #define mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v)) +#ifdef __powerpc64__ +#ifdef CONFIG_PPC_CELL +#define mftb() ({unsigned long rval; \ + asm volatile( \ + "90: mftb %0;\n" \ + "97: cmpwi %0,0;\n" \ + " beq- 90b;\n" \ + "99:\n" \ + ".section __ftr_fixup,\"a\"\n" \ + ".align 3\n" \ + "98:\n" \ + " .llong %1\n" \ + " .llong %1\n" \ + " .llong 97b-98b\n" \ + " .llong 99b-98b\n" \ + ".previous" \ + : "=r" (rval) : "i" (CPU_FTR_CELL_TB_BUG)); rval;}) +#else #define mftb() ({unsigned long rval; \ asm volatile("mftb %0" : "=r" (rval)); rval;}) +#endif /* !CONFIG_PPC_CELL */ + +#else /* __powerpc64__ */ + #define mftbl() ({unsigned long rval; \ asm volatile("mftbl %0" : "=r" (rval)); rval;}) +#define mftbu() ({unsigned long rval; \ + asm volatile("mftbu %0" : "=r" (rval)); rval;}) +#endif /* !__powerpc64__ */ #define mttbl(v) asm volatile("mttbl %0":: "r"(v)) #define mttbu(v) asm volatile("mttbu %0":: "r"(v)) diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h index b051d4c88c3b..a78285010d62 100644 --- a/include/asm-powerpc/time.h +++ b/include/asm-powerpc/time.h @@ -82,30 +82,35 @@ struct div_result { #define __USE_RTC() 0 #endif -/* On ppc64 this gets us the whole timebase; on ppc32 just the lower half */ +#ifdef CONFIG_PPC64 + +/* For compatibility, get_tbl() is defined as get_tb() on ppc64 */ +#define get_tbl get_tb + +#else + static inline unsigned long get_tbl(void) { - unsigned long tbl; - #if defined(CONFIG_403GCX) + unsigned long tbl; asm volatile("mfspr %0, 0x3dd" : "=r" (tbl)); + return tbl; #else - asm volatile("mftb %0" : "=r" (tbl)); + return mftbl(); #endif - return tbl; } static inline unsigned int get_tbu(void) { +#ifdef CONFIG_403GCX unsigned int tbu; - -#if defined(CONFIG_403GCX) asm volatile("mfspr %0, 0x3dc" : "=r" (tbu)); + return tbu; #else - asm volatile("mftbu %0" : "=r" (tbu)); + return mftbu(); #endif - return tbu; } +#endif /* !CONFIG_PPC64 */ static inline unsigned int get_rtcl(void) { @@ -131,7 +136,7 @@ static inline u64 get_tb(void) { return mftb(); } -#else +#else /* CONFIG_PPC64 */ static inline u64 get_tb(void) { unsigned int tbhi, tblo, tbhi2; @@ -144,7 +149,7 @@ static inline u64 get_tb(void) return ((u64)tbhi << 32) | tblo; } -#endif +#endif /* !CONFIG_PPC64 */ static inline void set_tb(unsigned int upper, unsigned int lower) { diff --git a/include/asm-powerpc/timex.h b/include/asm-powerpc/timex.h index 3b9a8e786806..92dedde761d1 100644 --- a/include/asm-powerpc/timex.h +++ b/include/asm-powerpc/timex.h @@ -8,6 +8,7 @@ */ #include <asm/cputable.h> +#include <asm/reg.h> #define CLOCK_TICK_RATE 1024000 /* Underlying HZ */ @@ -15,13 +16,11 @@ typedef unsigned long cycles_t; static inline cycles_t get_cycles(void) { - cycles_t ret; - #ifdef __powerpc64__ - - __asm__ __volatile__("mftb %0" : "=r" (ret) : ); - + return mftb(); #else + cycles_t ret; + /* * For the "cycle" counter we use the timebase lower half. * Currently only used on SMP. @@ -30,18 +29,19 @@ static inline cycles_t get_cycles(void) ret = 0; __asm__ __volatile__( - "98: mftb %0\n" + "97: mftb %0\n" "99:\n" ".section __ftr_fixup,\"a\"\n" + ".align 2\n" + "98:\n" " .long %1\n" " .long 0\n" - " .long 98b\n" - " .long 99b\n" + " .long 97b-98b\n" + " .long 99b-98b\n" ".previous" : "=r" (ret) : "i" (CPU_FTR_601)); -#endif - return ret; +#endif } #endif /* __KERNEL__ */ diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 41277963f47a..2e1141623147 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -921,6 +921,8 @@ static int init_section_ref_ok(const char *name) ".fixup", ".smp_locks", ".plt", /* seen on ARCH=um build on x86_64. Harmless */ + "__ftr_fixup", /* powerpc cpu feature fixup */ + "__fw_ftr_fixup", /* powerpc firmware feature fixup */ NULL }; /* Start of section names */ |