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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-10-08 08:24:47 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-10-09 11:52:30 -0700 |
| commit | ebe454bcca6a5421512ad228595a5391506e990a (patch) | |
| tree | 5f3ea083e9d1717ff7437eb24e353c697a4234d4 | |
| parent | 7674695cf7e28528be7243ceb30c9a600bbaa7b5 (diff) | |
| download | glibc-ebe454bcca6a5421512ad228595a5391506e990a.zip glibc-ebe454bcca6a5421512ad228595a5391506e990a.tar.gz glibc-ebe454bcca6a5421512ad228595a5391506e990a.tar.bz2 | |
<sys/platform/x86.h>: Add AVX512_FP16 support
Add AVX512_FP16 support to <sys/platform/x86.h>.
| -rw-r--r-- | manual/platform.texi | 3 | ||||
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 2 | ||||
| -rw-r--r-- | sysdeps/x86/sys/platform/x86.h | 6 | ||||
| -rw-r--r-- | sysdeps/x86/tst-get-cpu-features.c | 2 |
4 files changed, 10 insertions, 3 deletions
diff --git a/manual/platform.texi b/manual/platform.texi index 0dd12a4..4f5fdff 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -211,6 +211,9 @@ The supported processor features are: @code{AVX512_BITALG} -- The AVX512_BITALG instruction extensions. @item +@code{AVX512_FP16} -- The AVX512_FP16 instruction extensions. + +@item @code{AVX512_IFMA} -- The AVX512_IFMA instruction extensions. @item diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index 6551df1..4ecb8ce 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -175,6 +175,8 @@ update_usable (struct cpu_features *cpu_features) AVX512_VP2INTERSECT); /* Determine if AVX512_BF16 is usable. */ CPU_FEATURE_SET_USABLE (cpu_features, AVX512_BF16); + /* Determine if AVX512_FP16 is usable. */ + CPU_FEATURE_SET_USABLE (cpu_features, AVX512_FP16); } } } diff --git a/sysdeps/x86/sys/platform/x86.h b/sysdeps/x86/sys/platform/x86.h index 22bb284..00cd151 100644 --- a/sysdeps/x86/sys/platform/x86.h +++ b/sysdeps/x86/sys/platform/x86.h @@ -259,7 +259,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) #define bit_cpu_IBT (1u << 20) #define bit_cpu_INDEX_7_EDX_21 (1u << 21) #define bit_cpu_AMX_BF16 (1u << 22) -#define bit_cpu_INDEX_7_EDX_23 (1u << 23) +#define bit_cpu_AVX512_FP16 (1u << 23) #define bit_cpu_AMX_TILE (1u << 24) #define bit_cpu_AMX_INT8 (1u << 25) #define bit_cpu_IBRS_IBPB (1u << 26) @@ -478,7 +478,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) #define index_cpu_IBT COMMON_CPUID_INDEX_7 #define index_cpu_INDEX_7_EDX_21 COMMON_CPUID_INDEX_7 #define index_cpu_AMX_BF16 COMMON_CPUID_INDEX_7 -#define index_cpu_INDEX_7_EDX_23 COMMON_CPUID_INDEX_7 +#define index_cpu_AVX512_FP16 COMMON_CPUID_INDEX_7 #define index_cpu_AMX_TILE COMMON_CPUID_INDEX_7 #define index_cpu_AMX_INT8 COMMON_CPUID_INDEX_7 #define index_cpu_IBRS_IBPB COMMON_CPUID_INDEX_7 @@ -697,7 +697,7 @@ extern const struct cpu_features *__x86_get_cpu_features (unsigned int) #define reg_IBT edx #define reg_INDEX_7_EDX_21 edx #define reg_AMX_BF16 edx -#define reg_INDEX_7_EDX_23 edx +#define reg_AVX512_FP16 edx #define reg_AMX_TILE edx #define reg_AMX_INT8 edx #define reg_IBRS_IBPB edx diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c index d160f7c..7262c3a 100644 --- a/sysdeps/x86/tst-get-cpu-features.c +++ b/sysdeps/x86/tst-get-cpu-features.c @@ -191,6 +191,7 @@ do_test (void) CHECK_CPU_FEATURE (PCONFIG); CHECK_CPU_FEATURE (IBT); CHECK_CPU_FEATURE (AMX_BF16); + CHECK_CPU_FEATURE (AVX512_FP16); CHECK_CPU_FEATURE (AMX_TILE); CHECK_CPU_FEATURE (AMX_INT8); CHECK_CPU_FEATURE (IBRS_IBPB); @@ -345,6 +346,7 @@ do_test (void) CHECK_CPU_FEATURE_USABLE (TSXLDTRK); CHECK_CPU_FEATURE_USABLE (PCONFIG); CHECK_CPU_FEATURE_USABLE (AMX_BF16); + CHECK_CPU_FEATURE_USABLE (AVX512_FP16); CHECK_CPU_FEATURE_USABLE (AMX_TILE); CHECK_CPU_FEATURE_USABLE (AMX_INT8); CHECK_CPU_FEATURE_USABLE (IBRS_IBPB); |