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yaml --- r: 158269 b: refs/heads/master c: 8178d00 h: refs/heads/master i: 158267: cdfd931 v: v3
git-mirror · Aug 18, 2009 · 69d2328 · 69d2328
1 parent 8804960
commit 69d2328
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Showing 39 changed files with 1,527 additions and 1,133 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 20002ded4d937ca87aca6253b874920a96a763c4
+refs/heads/master: 8178d000506612e426753679eca1f9737d562d49
diff --git a/trunk/arch/x86/include/asm/perf_counter.h b/trunk/arch/x86/include/asm/perf_counter.h
@@ -84,6 +84,16 @@ union cpuid10_edx {
 #define MSR_ARCH_PERFMON_FIXED_CTR2			0x30b
 #define X86_PMC_IDX_FIXED_BUS_CYCLES			(X86_PMC_IDX_FIXED + 2)
 
+/*
+ * We model BTS tracing as another fixed-mode PMC.
+ *
+ * We choose a value in the middle of the fixed counter range, since lower
+ * values are used by actual fixed counters and higher values are used
+ * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
+ */
+#define X86_PMC_IDX_FIXED_BTS				(X86_PMC_IDX_FIXED + 16)
+
+
 #ifdef CONFIG_PERF_COUNTERS
 extern void init_hw_perf_counters(void);
 extern void perf_counters_lapic_init(void);