From ecd2e6ca037d7bf3673c5478590d686d5cd6135a Mon Sep 17 00:00:00 2001 From: Jiaxi Chen Date: Fri, 3 Mar 2023 14:59:12 +0800 Subject: [PATCH] target/i386: Add support for AVX-NE-CONVERT in CPUID enumeration AVX-NE-CONVERT is a new set of instructions which can convert low precision floating point like BF16/FP16 to high precision floating point FP32, as well as convert FP32 elements to BF16. This instruction allows the platform to have improved AI capabilities and better compatibility. The bit definition: CPUID.(EAX=7,ECX=1):EDX[bit 5] Add CPUID definition for AVX-NE-CONVERT. Signed-off-by: Jiaxi Chen Signed-off-by: Tao Su Reviewed-by: Xiaoyao Li Message-Id: <20230303065913.1246327-6-tao1.su@linux.intel.com> Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 2 +- target/i386/cpu.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index abceab2b69..0204a3ac80 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -895,7 +895,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .type = CPUID_FEATURE_WORD, .feat_names = { NULL, NULL, NULL, NULL, - "avx-vnni-int8", NULL, NULL, NULL, + "avx-vnni-int8", "avx-ne-convert", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 0b25d18075..b46d52f3fa 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -923,6 +923,8 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w, /* Support for VPDPB[SU,UU,SS]D[,S] */ #define CPUID_7_1_EDX_AVX_VNNI_INT8 (1U << 4) +/* AVX NE CONVERT Instructions */ +#define CPUID_7_1_EDX_AVX_NE_CONVERT (1U << 5) /* XFD Extend Feature Disabled */ #define CPUID_D_1_EAX_XFD (1U << 4)