[PATCH] i386 add Intel Core related PMU MSRs

From: Stephane Eranian
Date: Wed Oct 18 2006 - 05:27:55 EST


Hello,

The following patch adds to the i386 tree a bunch of MSRs related to performance
monitoring for the processors based on Intel Core microarchitecture. It also adds
some architectural MSRs for PEBS. A similar patch was posted for x86-64.

changelog:
- add Intel Precise-Event Based sampling (PEBS) related MSR
- add Intel Data Save (DS) Area related MSR
- add Intel Core microarchitecure performance counter MSRs

signed-off-by: stephane eranian <eranian@xxxxxxxxxx>


diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
index 62b76cd..59becf2 100644
--- a/include/asm-i386/msr.h
+++ b/include/asm-i386/msr.h
@@ -141,6 +141,10 @@ #define MSR_IA32_MC0_STATUS 0x401
#define MSR_IA32_MC0_ADDR 0x402
#define MSR_IA32_MC0_MISC 0x403

+#define MSR_IA32_PEBS_ENABLE 0x3f1
+#define MSR_IA32_DS_AREA 0x600
+#define MSR_IA32_PERF_CAPABILITIES 0x345
+
/* Pentium IV performance counter MSRs */
#define MSR_P4_BPU_PERFCTR0 0x300
#define MSR_P4_BPU_PERFCTR1 0x301
@@ -284,4 +288,13 @@ #define MSR_TMTA_LONGRUN_FLAGS 0x808680
#define MSR_TMTA_LRTI_READOUT 0x80868018
#define MSR_TMTA_LRTI_VOLT_MHZ 0x8086801a

+/* Intel Core-based CPU performance counters */
+#define MSR_CORE_PERF_FIXED_CTR0 0x309
+#define MSR_CORE_PERF_FIXED_CTR1 0x30a
+#define MSR_CORE_PERF_FIXED_CTR2 0x30b
+#define MSR_CORE_PERF_FIXED_CTR_CTRL 0x30d
+#define MSR_CORE_PERF_GLOBAL_STATUS 0x38e
+#define MSR_CORE_PERF_GLOBAL_CTRL 0x38f
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x390
+
#endif /* __ASM_MSR_H */
--

-Stephane
-
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