From: Kan Liang <[email protected]> The bit 48 in the PERF_GLOBAL_STATUS is used to indicate the overflow status of the PERF_METRICS counters.
Move the BTS index to the bit 47. Signed-off-by: Kan Liang <[email protected]> --- arch/x86/include/asm/perf_event.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index fe8110a8c75b..58419e50ff98 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -238,11 +238,11 @@ struct x86_pmu_capability { /* * We model BTS tracing as another fixed-mode PMC. * - * We choose a value in the middle of the fixed event range, since lower + * We choose the value 47 for the fixed index of BTS, since lower * values are used by actual fixed events and higher values are used * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr. */ -#define INTEL_PMC_IDX_FIXED_BTS (INTEL_PMC_IDX_FIXED + 16) +#define INTEL_PMC_IDX_FIXED_BTS (INTEL_PMC_IDX_FIXED + 15) #define GLOBAL_STATUS_COND_CHG BIT_ULL(63) #define GLOBAL_STATUS_BUFFER_OVF_BIT 62 -- 2.17.1
