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[Qemu-devel] [PATCH v2] x86: add AVX512_VPOPCNTDQ features
From: |
He Chen |
Subject: |
[Qemu-devel] [PATCH v2] x86: add AVX512_VPOPCNTDQ features |
Date: |
Fri, 13 Jan 2017 09:53:31 +0800 |
AVX512_VPOPCNTDQ: Vector POPCNT instructions for word and qwords.
variable precision.
Signed-off-by: He Chen <address@hidden>
---
Changes from v1:
* Rename vpopcntdq to avx512-vpopcntdq.
---
target/i386/cpu.c | 2 +-
target/i386/cpu.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index b0640f1..1a4b164 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -435,7 +435,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, "avx512vbmi", "umip", "pku",
"ospke", NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
+ NULL, NULL, "avx512-vpopcntdq", NULL,
"la57", NULL, NULL, NULL,
NULL, NULL, "rdpid", NULL,
NULL, NULL, NULL, NULL,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index a04e46b..37b209e 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -630,6 +630,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_ECX_UMIP (1U << 2)
#define CPUID_7_0_ECX_PKU (1U << 3)
#define CPUID_7_0_ECX_OSPKE (1U << 4)
+#define CPUID_7_0_ECX_AVX512_VPOPCNTDQ (1U << 14) /* POPCNT for vectors of
DW/QW */
#define CPUID_7_0_ECX_LA57 (1U << 16)
#define CPUID_7_0_ECX_RDPID (1U << 22)
--
2.7.4
- [Qemu-devel] [PATCH v2] x86: add AVX512_VPOPCNTDQ features,
He Chen <=