From: He Chen <he.chen@linux.intel.com>
To: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Wei Liu <wei.liu2@citrix.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
He Chen <he.chen@intel.com>, Jan Beulich <jbeulich@suse.com>
Subject: [PATCH v2] x86/cpuid: Add AVX512_VPOPCNTDQ support
Date: Tue, 10 Jan 2017 17:19:54 +0800 [thread overview]
Message-ID: <1484039994-9437-1-git-send-email-he.chen@linux.intel.com> (raw)
AVX512_VPOPCNTDQ: Vector POPCNT instructions for word and qwords.
variable precision.
Signed-off-by: He Chen <he.chen@linux.intel.com>
---
Changes from v1:
renanme VPOPCNTDQ to AVX512_VPOPCNTDQ.
---
xen/include/public/arch-x86/cpufeatureset.h | 1 +
xen/tools/gen-cpuid.py | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/xen/include/public/arch-x86/cpufeatureset.h b/xen/include/public/arch-x86/cpufeatureset.h
index 565ccd5..c9b38e5 100644
--- a/xen/include/public/arch-x86/cpufeatureset.h
+++ b/xen/include/public/arch-x86/cpufeatureset.h
@@ -226,6 +226,7 @@ XEN_CPUFEATURE(PREFETCHWT1, 6*32+ 0) /*A PREFETCHWT1 instruction */
XEN_CPUFEATURE(AVX512VBMI, 6*32+ 1) /*A AVX-512 Vector Byte Manipulation Instrs */
XEN_CPUFEATURE(PKU, 6*32+ 3) /*H Protection Keys for Userspace */
XEN_CPUFEATURE(OSPKE, 6*32+ 4) /*! OS Protection Keys Enable */
+XEN_CPUFEATURE(AVX512_VPOPCNTDQ, 6*32+14) /*A POPCNT for vectors of DW/QW */
/* AMD-defined CPU features, CPUID level 0x80000007.edx, word 7 */
XEN_CPUFEATURE(ITSC, 7*32+ 8) /* Invariant TSC */
diff --git a/xen/tools/gen-cpuid.py b/xen/tools/gen-cpuid.py
index 420a5cc..4a673b0 100755
--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -255,7 +255,8 @@ def crunch_numbers(state):
# 512bit registers, and the instructions themselves. All further AVX512 features
# are built on top of AVX512F
AVX512F: [AVX512DQ, AVX512IFMA, AVX512PF, AVX512ER, AVX512CD,
- AVX512BW, AVX512VL, AVX512VBMI, AVX512_4VNNIW, AVX512_4FMAPS],
+ AVX512BW, AVX512VL, AVX512VBMI, AVX512_4VNNIW,
+ AVX512_4FMAPS, AVX512_VPOPCNTDQ],
}
deep_features = tuple(sorted(deps.keys()))
--
2.7.4
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next reply other threads:[~2017-01-10 9:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-10 9:19 He Chen [this message]
2017-01-10 9:26 ` [PATCH v2] x86/cpuid: Add AVX512_VPOPCNTDQ support Jan Beulich
2017-01-10 10:28 ` Wei Liu
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