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[PATCH v2 3/6] target/i386: Add support for AVX-IFMA in CPUID enumeratio
From: |
Tao Su |
Subject: |
[PATCH v2 3/6] target/i386: Add support for AVX-IFMA in CPUID enumeration |
Date: |
Fri, 3 Mar 2023 14:59:10 +0800 |
From: Jiaxi Chen <jiaxi.chen@linux.intel.com>
AVX-IFMA is a new instruction in the latest Intel platform Sierra
Forest. This instruction packed multiplies unsigned 52-bit integers and
adds the low/high 52-bit products to Qword Accumulators.
The bit definition:
CPUID.(EAX=7,ECX=1):EAX[bit 23]
Add CPUID definition for AVX-IFMA.
Signed-off-by: Jiaxi Chen <jiaxi.chen@linux.intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
---
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 ed08a52619..9aaa373e97 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -876,7 +876,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, NULL, "fzrm", "fsrs",
"fsrc", NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
- NULL, "amx-fp16", NULL, NULL,
+ NULL, "amx-fp16", NULL, "avx-ifma",
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
},
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index ae6a0fdfc2..8e50617efb 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -914,6 +914,8 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
#define CPUID_7_1_EAX_FSRC (1U << 12)
/* Support Tile Computational Operations on FP16 Numbers */
#define CPUID_7_1_EAX_AMX_FP16 (1U << 21)
+/* Support for VPMADD52[H,L]UQ */
+#define CPUID_7_1_EAX_AVX_IFMA (1U << 23)
/* XFD Extend Feature Disabled */
#define CPUID_D_1_EAX_XFD (1U << 4)
--
2.34.1
- [PATCH v2 0/6] target/i386: Support new Intel platform Instructions in CPUID enumeration, Tao Su, 2023/03/03
- [PATCH v2 1/6] target/i386: Add support for CMPCCXADD in CPUID enumeration, Tao Su, 2023/03/03
- [PATCH v2 2/6] target/i386: Add support for AMX-FP16 in CPUID enumeration, Tao Su, 2023/03/03
- [PATCH v2 3/6] target/i386: Add support for AVX-IFMA in CPUID enumeration,
Tao Su <=
- [PATCH v2 4/6] target/i386: Add support for AVX-VNNI-INT8 in CPUID enumeration, Tao Su, 2023/03/03
- [PATCH v2 5/6] target/i386: Add support for AVX-NE-CONVERT in CPUID enumeration, Tao Su, 2023/03/03
- [PATCH v2 6/6] target/i386: Add support for PREFETCHIT0/1 in CPUID enumeration, Tao Su, 2023/03/03
- Re: [PATCH v2 0/6] target/i386: Support new Intel platform Instructions in CPUID enumeration, Xiaoyao Li, 2023/03/03