diff options
Diffstat (limited to 'arch/x86/include/asm/perf_event.h')
| -rw-r--r-- | arch/x86/include/asm/perf_event.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index e855e9cf2c37..5d2c30f0df02 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -333,6 +333,13 @@ struct perf_guest_switch_msr { u64 host, guest; }; +struct x86_pmu_lbr { + unsigned int nr; + unsigned int from; + unsigned int to; + unsigned int info; +}; + extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap); extern void perf_check_microcode(void); extern int x86_perf_rdpmc_index(struct perf_event *event); @@ -348,12 +355,17 @@ static inline void perf_check_microcode(void) { } #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL) extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr); +extern int x86_perf_get_lbr(struct x86_pmu_lbr *lbr); #else static inline struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr) { *nr = 0; return NULL; } +static inline int x86_perf_get_lbr(struct x86_pmu_lbr *lbr) +{ + return -1; +} #endif #ifdef CONFIG_CPU_SUP_INTEL |