linux-kernel - [PATCH 6/6] perf: Use MSR names in the extra reg lists

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Message-Id: <1298221065.2318.71.camel@localhost>
Date:	Mon, 21 Feb 2011 00:57:45 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/6] perf: Use MSR names in the extra reg lists

MSR names is much more readable.

Signed-off-by: Lin Ming <ming.m.lin@...el.com>
---
 arch/x86/include/asm/msr-index.h       |    3 +++
 arch/x86/kernel/cpu/perf_event_intel.c |    6 +++---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 4d0dfa0..d25e74c 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -47,6 +47,9 @@
 #define MSR_IA32_MCG_STATUS		0x0000017a
 #define MSR_IA32_MCG_CTL		0x0000017b
 
+#define MSR_OFFCORE_RSP_0		0x000001a6
+#define MSR_OFFCORE_RSP_1		0x000001a7
+
 #define MSR_IA32_PEBS_ENABLE		0x000003f1
 #define MSR_IA32_DS_AREA		0x00000600
 #define MSR_IA32_PERF_CAPABILITIES	0x00000345
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 5540d35..f152930 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -88,7 +88,7 @@ static struct event_constraint intel_nehalem_event_constraints[] =
 
 static struct extra_reg intel_nehalem_extra_regs[] =
 {
-	INTEL_EVENT_EXTRA_REG(0xb7, 0x1a6, 0xffff), /* OFFCORE_RESPONSE */
+	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff),
 	EVENT_EXTRA_END
 };
 
@@ -112,8 +112,8 @@ static struct event_constraint intel_westmere_event_constraints[] =
 
 static struct extra_reg intel_westmere_extra_regs[] =
 {
-	INTEL_EVENT_EXTRA_REG(0xb7, 0x1a6, 0xffff), /* OFFCORE_RESPONSE_0 */
-	INTEL_EVENT_EXTRA_REG(0xbb, 0x1a7, 0xffff), /* OFFCORE_RESPONSE_1 */
+	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff),
+	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0xffff),
 	EVENT_EXTRA_END
 };
 
-- 
1.7.3



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