diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-07-05 15:03:41 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-21 18:51:42 +1000 |
| commit | 9402c684613163888714df0955fa1f17142b08bf (patch) | |
| tree | e814fd2d90f10222a4b6e20152881cf745f4ad86 /arch/powerpc/lib | |
| parent | b9c13fe32faaa71c4e4f8a426d79f8c93495e9f9 (diff) | |
powerpc: Factor do_feature_fixup calls
32 and 64-bit do a similar set of calls early on, we move it all to
a single common function to make the boot code more readable.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/feature-fixups.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c index 7ce3870d7ddd..defb2998b818 100644 --- a/arch/powerpc/lib/feature-fixups.c +++ b/arch/powerpc/lib/feature-fixups.c @@ -20,7 +20,8 @@ #include <asm/code-patching.h> #include <asm/page.h> #include <asm/sections.h> - +#include <asm/setup.h> +#include <asm/firmware.h> struct fixup_entry { unsigned long mask; @@ -130,7 +131,7 @@ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end) } } -void do_final_fixups(void) +static void do_final_fixups(void) { #if defined(CONFIG_PPC64) && defined(CONFIG_RELOCATABLE) int *src, *dest; @@ -151,6 +152,33 @@ void do_final_fixups(void) #endif } +void apply_feature_fixups(void) +{ + struct cpu_spec *spec = *PTRRELOC(&cur_cpu_spec); + + /* + * Apply the CPU-specific and firmware specific fixups to kernel text + * (nop out sections not relevant to this CPU or this firmware). + */ + do_feature_fixups(spec->cpu_features, + PTRRELOC(&__start___ftr_fixup), + PTRRELOC(&__stop___ftr_fixup)); + + do_feature_fixups(spec->mmu_features, + PTRRELOC(&__start___mmu_ftr_fixup), + PTRRELOC(&__stop___mmu_ftr_fixup)); + + do_lwsync_fixups(spec->cpu_features, + PTRRELOC(&__start___lwsync_fixup), + PTRRELOC(&__stop___lwsync_fixup)); + +#ifdef CONFIG_PPC64 + do_feature_fixups(powerpc_firmware_features, + &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); +#endif + do_final_fixups(); +} + #ifdef CONFIG_FTR_FIXUP_SELFTEST #define check(x) \ |