diff options
| author | Tao Su <tao1.su@linux.intel.com> | 2023-08-30 15:43:24 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-09-01 23:44:39 +0200 |
| commit | 3e76bafb28c8292be5c4a32cab873b3a82cbcc87 (patch) | |
| tree | e4dcf87373e100cde7c3fa9f6cedeec60977cf91 /target/i386 | |
| parent | abd41884c530aa025ada253bf1a5bd0c2b808219 (diff) | |
target/i386: Add support for AMX-COMPLEX in CPUID enumeration
Latest Intel platform GraniteRapids-D introduces AMX-COMPLEX, which adds
two instructions to perform matrix multiplication of two tiles containing
complex elements and accumulate the results into a packed single precision
tile.
AMX-COMPLEX is enumerated via CPUID.(EAX=7,ECX=1):EDX[bit 8]. Add the CPUID
definition for AMX-COMPLEX, AMX-COMPLEX will be enabled automatically when
using '-cpu host' and KVM advertises AMX-COMPLEX to userspace.
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20230830074324.84059-1-tao1.su@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386')
| -rw-r--r-- | target/i386/cpu.c | 2 | ||||
| -rw-r--r-- | target/i386/cpu.h | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 00f913b638..24ee67b42d 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -980,7 +980,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { NULL, NULL, NULL, NULL, "avx-vnni-int8", "avx-ne-convert", NULL, NULL, - NULL, NULL, NULL, NULL, + "amx-complex", NULL, NULL, NULL, NULL, NULL, "prefetchiti", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index a6000e93bd..fbb05eace5 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -930,6 +930,8 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w, #define CPUID_7_1_EDX_AVX_VNNI_INT8 (1U << 4) /* AVX NE CONVERT Instructions */ #define CPUID_7_1_EDX_AVX_NE_CONVERT (1U << 5) +/* AMX COMPLEX Instructions */ +#define CPUID_7_1_EDX_AMX_COMPLEX (1U << 8) /* PREFETCHIT0/1 Instructions */ #define CPUID_7_1_EDX_PREFETCHITI (1U << 14) |