diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 11 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso.c | 43 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso32/vdso32.lds.S | 12 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64/vdso64.lds.S | 10 |
6 files changed, 73 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 6fdfaa4a82b..bfd499ee375 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -1202,14 +1202,13 @@ struct cpu_spec *identify_cpu(unsigned long offset) return NULL; } -void do_feature_fixups(unsigned long offset, unsigned long value, - void *fixup_start, void *fixup_end) +void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end) { struct fixup_entry { unsigned long mask; unsigned long value; - unsigned int *start; - unsigned int *end; + long start_off; + long end_off; } *fcur, *fend; fcur = fixup_start; @@ -1224,8 +1223,8 @@ void do_feature_fixups(unsigned long offset, unsigned long value, /* These PTRRELOCs will disappear once the new scheme for * modules and vdso is implemented */ - pstart = PTRRELOC(fcur->start); - pend = PTRRELOC(fcur->end); + pstart = ((unsigned int *)fcur) + (fcur->start_off / 4); + pend = ((unsigned int *)fcur) + (fcur->end_off / 4); for (p = pstart; p < pend; p++) { *p = 0x60000000u; diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 769e511783b..a4c2964a3ca 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -103,7 +103,7 @@ unsigned long __init early_init(unsigned long dt_ptr) */ spec = identify_cpu(offset); - do_feature_fixups(offset, spec->cpu_features, + do_feature_fixups(spec->cpu_features, PTRRELOC(&__start___ftr_fixup), PTRRELOC(&__stop___ftr_fixup)); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 1969b5686ee..16278968dab 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -354,9 +354,9 @@ void __init setup_system(void) /* 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(0, cur_cpu_spec->cpu_features, + do_feature_fixups(cur_cpu_spec->cpu_features, &__start___ftr_fixup, &__stop___ftr_fixup); - do_feature_fixups(0, powerpc_firmware_features, + do_feature_fixups(powerpc_firmware_features, &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); /* diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 1a7e19cdab3..c913ad5cad2 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 6187af2d54c..26e138c4ce1 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/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S index 4a2b6dc0960..2d70f35d50b 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) } |