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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-10-08 08:50:44 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-10-09 11:52:30 -0700 |
| commit | 428985c436f442e91e27173bccaf28f547233586 (patch) | |
| tree | 74356bd972c02202489049dbcdcab1bd90d859dd | |
| parent | c712401bc641b66d9bd558884751d8979e2e0e96 (diff) | |
| download | glibc-428985c436f442e91e27173bccaf28f547233586.tar.gz glibc-428985c436f442e91e27173bccaf28f547233586.tar.xz glibc-428985c436f442e91e27173bccaf28f547233586.zip | |
<sys/platform/x86.h>: Add FSRCS/FSRS/FZLRM support
Add Fast Short REP CMP and SCA (FSRCS), Fast Short REP STO (FSRS) and Fast Zero-Length REP MOV (FZLRM) support to <sys/platform/x86.h>.
| -rw-r--r-- | manual/platform.texi | 9 | ||||
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 3 | ||||
| -rw-r--r-- | sysdeps/x86/sys/platform/x86.h | 9 | ||||
| -rw-r--r-- | sysdeps/x86/tst-get-cpu-features.c | 6 |
4 files changed, 27 insertions, 0 deletions
diff --git a/manual/platform.texi b/manual/platform.texi index 1e44525552..8fec2933d6 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -332,12 +332,21 @@ extensions. @code{FSGSBASE} -- RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE instructions. @item +@code{FSRCS} -- Fast Short REP CMP and SCA. + +@item @code{FSRM} -- Fast Short REP MOV. @item +@code{FSRS} -- Fast Short REP STO. + +@item @code{FXSR} -- FXSAVE and FXRSTOR instructions. @item +@code{FZLRM} -- Fast Zero-Length REP MOV. + +@item @code{GFNI} -- GFNI instruction extensions. @item diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index b0fac22c27..286ff96771 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -93,6 +93,9 @@ update_usable (struct cpu_features *cpu_features) CPU_FEATURE_SET_USABLE (cpu_features, TBM); CPU_FEATURE_SET_USABLE (cpu_features, RDTSCP); CPU_FEATURE_SET_USABLE (cpu_features, WBNOINVD); + CPU_FEATURE_SET_USABLE (cpu_features, FZLRM); + CPU_FEATURE_SET_USABLE (cpu_features, FSRS); + CPU_FEATURE_SET_USABLE (cpu_features, FSRCS); /* Can we call xgetbv? */ if (CPU_FEATURES_CPU_P (cpu_features, OSXSAVE)) diff --git a/sysdeps/x86/sys/platform/x86.h b/sysdeps/x86/sys/platform/x86.h index 394f1c41a6..3ef92b04e8 100644 --- a/sysdeps/x86/sys/platform/x86.h +++ b/sysdeps/x86/sys/platform/x86.h @@ -313,6 +313,9 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define bit_cpu_AVX_VNNI (1u << 4) #define bit_cpu_AVX512_BF16 (1u << 5) +#define bit_cpu_FZLRM (1u << 10) +#define bit_cpu_FSRS (1u << 11) +#define bit_cpu_FSRCS (1u << 12) #define bit_cpu_HRESET (1u << 22) /* COMMON_CPUID_INDEX_19. */ @@ -534,6 +537,9 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define index_cpu_AVX_VNNI COMMON_CPUID_INDEX_7_ECX_1 #define index_cpu_AVX512_BF16 COMMON_CPUID_INDEX_7_ECX_1 +#define index_cpu_FZLRM COMMON_CPUID_INDEX_7_ECX_1 +#define index_cpu_FSRS COMMON_CPUID_INDEX_7_ECX_1 +#define index_cpu_FSRCS COMMON_CPUID_INDEX_7_ECX_1 #define index_cpu_HRESET COMMON_CPUID_INDEX_7_ECX_1 /* COMMON_CPUID_INDEX_19. */ @@ -755,6 +761,9 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) /* EAX. */ #define reg_AVX_VNNI eax #define reg_AVX512_BF16 eax +#define reg_FZLRM eax +#define reg_FSRS eax +#define reg_FSRCS eax #define reg_HRESET eax /* COMMON_CPUID_INDEX_19. */ diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index aacaa49045..667aa27117 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -223,6 +223,9 @@ do_test (void) CHECK_CPU_FEATURE (WBNOINVD); CHECK_CPU_FEATURE (AVX_VNNI); CHECK_CPU_FEATURE (AVX512_BF16); + CHECK_CPU_FEATURE (FZLRM); + CHECK_CPU_FEATURE (FSRS); + CHECK_CPU_FEATURE (FSRCS); CHECK_CPU_FEATURE (HRESET); CHECK_CPU_FEATURE (AESKLE); CHECK_CPU_FEATURE (WIDE_KL); @@ -380,6 +383,9 @@ do_test (void) CHECK_CPU_FEATURE_USABLE (WBNOINVD); CHECK_CPU_FEATURE_USABLE (AVX_VNNI); CHECK_CPU_FEATURE_USABLE (AVX512_BF16); + CHECK_CPU_FEATURE_USABLE (FZLRM); + CHECK_CPU_FEATURE_USABLE (FSRS); + CHECK_CPU_FEATURE_USABLE (FSRCS); CHECK_CPU_FEATURE_USABLE (AESKLE); CHECK_CPU_FEATURE_USABLE (WIDE_KL); |