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From: Andre Przywara <andre.przywara@amd.com>
To: <hpa@zytor.com>, <tglx@linutronix.de>, <mingo@elte.hu>
Cc: <linux-kernel@vger.kernel.org>,
	Andre Przywara <andre.przywara@amd.com>,
	"<stable"@kernel.org, "[.32.x.34.x>,
	\".35.x]"@domain.invalid
Subject: [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit
Date: Fri, 3 Sep 2010 10:03:05 +0200	[thread overview]
Message-ID: <1283500988-32409-2-git-send-email-andre.przywara@amd.com> (raw)
In-Reply-To: <1283500988-32409-1-git-send-email-andre.przywara@amd.com>

The AMD SSE5 feature set as-it has been replaced by some extensions
to the AVX instruction set. Thus the bit formerly advertised as SSE5
is re-used for one of these extensions (XOP).
Although this changes the /proc/cpuinfo output, it is not user visible, as
there are no CPUs (yet) having this feature.
To avoid confusion this should be added to the stable series, too.

Cc: stable@kernel.org [.32.x .34.x, .35.x]
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
---
 arch/x86/include/asm/cpufeature.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 781a50b..c9c73d8 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -152,7 +152,7 @@
 #define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */
 #define X86_FEATURE_OSVW	(6*32+ 9) /* OS Visible Workaround */
 #define X86_FEATURE_IBS		(6*32+10) /* Instruction Based Sampling */
-#define X86_FEATURE_SSE5	(6*32+11) /* SSE-5 */
+#define X86_FEATURE_XOP		(6*32+11) /* extended AVX instructions */
 #define X86_FEATURE_SKINIT	(6*32+12) /* SKINIT/STGI instructions */
 #define X86_FEATURE_WDT		(6*32+13) /* Watchdog timer */
 #define X86_FEATURE_NODEID_MSR	(6*32+19) /* NodeId MSR */
-- 
1.6.4



  reply	other threads:[~2010-09-03  8:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-03  8:03 [PATCH 0/4] x86: update AMD CPUID bits Andre Przywara
2010-09-03  8:03 ` Andre Przywara [this message]
2010-09-03  8:03 ` [PATCH 2/4] x86: Update AMD CPUID feature bits Andre Przywara
2010-09-03  8:03 ` [PATCH 3/4] x86: Fix allowed CPUID bits for KVM guests Andre Przywara
2010-09-03  8:03 ` [PATCH 4/4] x86, kvm: add new AMD SVM feature bits Andre Przywara
     [not found] <1283506069-1096-1-git-send-email-andre.przywara@amd.com>
     [not found] ` <1283506069-1096-2-git-send-email-andre.przywara@amd.com>
     [not found]   ` <4C834FCA.4020207@redhat.com>
2010-09-05 15:37     ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara
2010-09-05 15:53       ` Avi Kivity
2010-09-06 13:14 [PATCH 0/4 -v2] x86: update AMD CPUID bits Andre Przywara
2010-09-06 13:14 ` [PATCH 1/4] x86: Fix misnamed AMD CPUID feature bit Andre Przywara

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