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<sys/platform/x86.h>: Add AMX-FP16 support

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Add AMX-FP16 support to <sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
This commit is contained in:
H.J. Lu 2023-04-05 09:21:38 -07:00
parent 227983551d
commit 8b4cc05eab
5 changed files with 11 additions and 0 deletions
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3
manual/platform.texi
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@ -200,6 +200,9 @@ The supported processor features are:
@item
@code{AMX_INT8} -- Tile computational operations on 8-bit numbers.
@item
@code{AMX_FP16} -- Tile computational operations on FP16 numbers.
@item
@code{AMX_TILE} -- Tile architecture.

1
sysdeps/x86/bits/platform/x86.h
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@ -298,6 +298,7 @@ enum
x86_cpu_FSRS = x86_cpu_index_7_ecx_1_eax + 11,
x86_cpu_FSRCS = x86_cpu_index_7_ecx_1_eax + 12,
x86_cpu_WRMSRNS = x86_cpu_index_7_ecx_1_eax + 19,
x86_cpu_AMX_FP16 = x86_cpu_index_7_ecx_1_eax + 21,
x86_cpu_HRESET = x86_cpu_index_7_ecx_1_eax + 22,
x86_cpu_LAM = x86_cpu_index_7_ecx_1_eax + 26,

2
sysdeps/x86/cpu-features.c
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@ -213,6 +213,8 @@ update_active (struct cpu_features *cpu_features)
CPU_FEATURE_SET_ACTIVE (cpu_features, AMX_TILE);
/* Determine if AMX_INT8 is usable. */
CPU_FEATURE_SET_ACTIVE (cpu_features, AMX_INT8);
/* Determine if AMX_FP16 is usable. */
CPU_FEATURE_SET_ACTIVE (cpu_features, AMX_FP16);
}
/* These features are usable only when OSXSAVE is enabled. */

3
sysdeps/x86/include/cpu-features.h
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@ -309,6 +309,7 @@ enum
#define bit_cpu_FZLRM (1u << 10)
#define bit_cpu_FSRS (1u << 11)
#define bit_cpu_FSRCS (1u << 12)
#define bit_cpu_AMX_FP16 (1u << 21)
#define bit_cpu_HRESET (1u << 22)
#define bit_cpu_LAM (1u << 26)
@ -546,6 +547,7 @@ enum
#define index_cpu_FZLRM CPUID_INDEX_7_ECX_1
#define index_cpu_FSRS CPUID_INDEX_7_ECX_1
#define index_cpu_FSRCS CPUID_INDEX_7_ECX_1
#define index_cpu_AMX_FP16 CPUID_INDEX_7_ECX_1
#define index_cpu_HRESET CPUID_INDEX_7_ECX_1
#define index_cpu_LAM CPUID_INDEX_7_ECX_1
@ -783,6 +785,7 @@ enum
#define reg_FZLRM eax
#define reg_FSRS eax
#define reg_FSRCS eax
#define reg_AMX_FP16 eax
#define reg_HRESET eax
#define reg_LAM eax

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

@ -210,6 +210,7 @@ do_test (void)
CHECK_CPU_FEATURE_PRESENT (FSRS);
CHECK_CPU_FEATURE_PRESENT (FSRCS);
CHECK_CPU_FEATURE_PRESENT (WRMSRNS);
CHECK_CPU_FEATURE_PRESENT (AMX_FP16);
CHECK_CPU_FEATURE_PRESENT (HRESET);
CHECK_CPU_FEATURE_PRESENT (LAM);
CHECK_CPU_FEATURE_PRESENT (AESKLE);
@ -377,6 +378,7 @@ do_test (void)
CHECK_CPU_FEATURE_ACTIVE (FZLRM);
CHECK_CPU_FEATURE_ACTIVE (FSRS);
CHECK_CPU_FEATURE_ACTIVE (FSRCS);
CHECK_CPU_FEATURE_ACTIVE (AMX_FP16);
CHECK_CPU_FEATURE_ACTIVE (AESKLE);
CHECK_CPU_FEATURE_ACTIVE (WIDE_KL);
CHECK_CPU_FEATURE_ACTIVE (PTWRITE);