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<sys/platform/x86.h>: Add AVX512_FP16 support

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Add AVX512_FP16 support to <sys/platform/x86.h>.
This commit is contained in:
H.J. Lu 2020-10-08 08:24:47 -07:00
parent 7674695cf7
commit ebe454bcca
4 changed files with 10 additions and 3 deletions
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3
manual/platform.texi
View File

@ -210,6 +210,9 @@ The supported processor features are:
@item
@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.

2
sysdeps/x86/cpu-features.c
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@ -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);
}
}
}

6
sysdeps/x86/sys/platform/x86.h
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@ -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

2
sysdeps/x86/tst-get-cpu-features.c
View File

@ -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);