diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-20 22:08:31 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-04-01 15:14:40 +0300 |
| commit | db5ae1c155af7a76c9f538bf134066303089679d (patch) | |
| tree | 62f2e9061387a6f2a1514f099ad033df1fceab85 /arch/powerpc | |
| parent | a73657ea19aeb92f98438263d42f90188f115d58 (diff) | |
| download | linux-db5ae1c155af7a76c9f538bf134066303089679d.tar.xz | |
powerpc/64s: Refine feature sets for little endian builds
This reduces vmlinux text size by 1kB and data by 1.5kB with a small
build!
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Add the recently added CPU_FTRS_POWER9_DD2_2 to the little
endian possible mask as noticed by Nick.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 7e22607e07b4..4e332f3531c5 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -483,6 +483,13 @@ static inline void cpu_feature_keys_init(void) { } #ifdef CONFIG_PPC_BOOK3E #define CPU_FTRS_POSSIBLE (CPU_FTRS_E6500 | CPU_FTRS_E5500) #else +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define CPU_FTRS_POSSIBLE \ + (CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | CPU_FTRS_POWER8 | \ + CPU_FTRS_POWER8_DD1 | CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | \ + CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD2_1 | \ + CPU_FTRS_POWER9_DD2_2) +#else #define CPU_FTRS_POSSIBLE \ (CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \ CPU_FTRS_POWER6 | CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | \ @@ -490,6 +497,7 @@ static inline void cpu_feature_keys_init(void) { } CPU_FTRS_PA6T | CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | \ CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD2_1 | \ CPU_FTRS_POWER9_DD2_2) +#endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif #else enum { @@ -536,12 +544,19 @@ enum { #ifdef CONFIG_PPC_BOOK3E #define CPU_FTRS_ALWAYS (CPU_FTRS_E6500 & CPU_FTRS_E5500) #else +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define CPU_FTRS_ALWAYS \ + (CPU_FTRS_POSSIBLE & ~CPU_FTR_HVMODE & CPU_FTRS_POWER7 & \ + CPU_FTRS_POWER8E & CPU_FTRS_POWER8 & CPU_FTRS_POWER8_DD1 & \ + CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD1 & CPU_FTRS_POWER9_DD2_1) +#else #define CPU_FTRS_ALWAYS \ (CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & \ CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \ CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \ CPU_FTRS_POWER8_DD1 & ~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & \ CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD1 & CPU_FTRS_POWER9_DD2_1) +#endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif #else enum { |