[tip:x86/cpufeature] x86, cpu: Add cpufeature flag for PCIDs

[tip-bot for Arun Thomas]

Commit-ID:  be604e695f9a0db4cd5c4c232857a10c6bc9dee4
Gitweb:     http://git.kernel.org/tip/be604e695f9a0db4cd5c4c232857a10c6bc9dee4
Author:     Arun Thomas <arun.thomas@xxxxxxxxx>
AuthorDate: Fri, 19 Aug 2011 21:42:23 +0200
Committer:  H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
CommitDate: Mon, 22 Aug 2011 13:52:32 -0700

x86, cpu: Add cpufeature flag for PCIDs

This patch add a flag for Process-Context Identifiers (PCIDs) aka
Address Space Identifiers (ASIDs) aka Tagged TLB support.

Signed-off-by: Arun Thomas <arun.thomas@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1313782943-3898-1-git-send-email-arun.thomas@xxxxxxxxx
Acked-by: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
---
 arch/x86/include/asm/cpufeature.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 4258aac..f24ed51 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -114,6 +114,7 @@
 #define X86_FEATURE_CX16	(4*32+13) /* CMPXCHG16B */
 #define X86_FEATURE_XTPR	(4*32+14) /* Send Task Priority Messages */
 #define X86_FEATURE_PDCM	(4*32+15) /* Performance Capabilities */
+#define X86_FEATURE_PCID	(4*32+17) /* Process Context Identifiers */
 #define X86_FEATURE_DCA		(4*32+18) /* Direct Cache Access */
 #define X86_FEATURE_XMM4_1	(4*32+19) /* "sse4_1" SSE-4.1 */
 #define X86_FEATURE_XMM4_2	(4*32+20) /* "sse4_2" SSE-4.2 */
--
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