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From: "Fenghua Yu" <fenghua.yu@intel.com>
To: "Ingo Molnar" <mingo@elte.hu>,
	"H. Peter Anvin" <hpa@linux.intel.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Asit K Mallick" <asit.k.mallick@intel.com>
Cc: "linux-kernel" <linux-kernel@vger.kernel.org>,
	"x86" <x86@kernel.org>, "Fenghua Yu" <fenghua.yu@intel.com>
Subject: [PATCH 2/2] x86/AVX-512: Enable AVX-512 States Context Switch
Date: Thu, 20 Feb 2014 13:24:51 -0800	[thread overview]
Message-ID: <1392931491-33237-2-git-send-email-fenghua.yu@intel.com> (raw)
In-Reply-To: <1392931491-33237-1-git-send-email-fenghua.yu@intel.com>

From: Fenghua Yu <fenghua.yu@intel.com>

This patch enables Opmask, ZMM_Hi256, and Hi16_ZMM AVX-512 states for
xstate context switch.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
---
 arch/x86/include/asm/xsave.h | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 5547389..82173f6 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -6,11 +6,14 @@
 
 #define XSTATE_CPUID		0x0000000d
 
-#define XSTATE_FP	0x1
-#define XSTATE_SSE	0x2
-#define XSTATE_YMM	0x4
-#define XSTATE_BNDREGS	0x8
-#define XSTATE_BNDCSR	0x10
+#define XSTATE_FP		0x1
+#define XSTATE_SSE		0x2
+#define XSTATE_YMM		0x4
+#define XSTATE_BNDREGS		0x8
+#define XSTATE_BNDCSR		0x10
+#define XSTATE_OPMASK		0x20
+#define XSTATE_ZMM_Hi256	0x40
+#define XSTATE_Hi16_ZMM		0x80
 
 #define XSTATE_FPSSE	(XSTATE_FP | XSTATE_SSE)
 
@@ -23,7 +26,8 @@
 #define XSAVE_YMM_OFFSET    (XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET)
 
 /* Supported features which support lazy state saving */
-#define XSTATE_LAZY	(XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
+#define XSTATE_LAZY	(XSTATE_FP | XSTATE_SSE | XSTATE_YMM		      \
+			| XSTATE_OPMASK | XSTATE_ZMM_Hi256 | XSTATE_Hi16_ZMM)
 
 /* Supported features which require eager state saving */
 #define XSTATE_EAGER	(XSTATE_BNDREGS | XSTATE_BNDCSR)
-- 
1.8.1.2


  reply	other threads:[~2014-02-20 21:27 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-20 21:24 [PATCH 1/2] x86/AVX-512: AVX-512 Feature Detection Fenghua Yu
2014-02-20 21:24 ` Fenghua Yu [this message]
2014-02-20 22:19   ` [tip:x86/cpufeature] x86, AVX-512: Enable AVX-512 States Context Switch tip-bot for Fenghua Yu
2014-02-20 22:19 ` [tip:x86/cpufeature] x86, AVX-512: AVX-512 Feature Detection tip-bot for Fenghua Yu

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