diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index fe49e99e4fbf2..6414b4799ce7f 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -3980,6 +3980,7 @@ static __initconst const struct x86_pmu core_pmu = { .check_period = intel_pmu_check_period, .lbr_reset = intel_pmu_lbr_reset_64, + .lbr_read = intel_pmu_lbr_read_64, }; static __initconst const struct x86_pmu intel_pmu = { @@ -4027,6 +4028,7 @@ static __initconst const struct x86_pmu intel_pmu = { .aux_output_match = intel_pmu_aux_output_match, .lbr_reset = intel_pmu_lbr_reset_64, + .lbr_read = intel_pmu_lbr_read_64, }; static __init void intel_clovertown_quirk(void) @@ -4653,8 +4655,10 @@ __init int intel_pmu_init(void) x86_pmu.intel_cap.capabilities = capabilities; } - if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) + if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) { x86_pmu.lbr_reset = intel_pmu_lbr_reset_32; + x86_pmu.lbr_read = intel_pmu_lbr_read_32; + } intel_ds_init(); diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index 7af27a7660025..b8943f45ca693 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -562,7 +562,7 @@ void intel_pmu_lbr_disable_all(void) __intel_pmu_lbr_disable(); } -static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) +void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) { unsigned long mask = x86_pmu.lbr_nr - 1; u64 tos = intel_pmu_lbr_tos(); @@ -599,7 +599,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) * is the same as the linear address, allowing us to merge the LIP and EIP * LBR formats. */ -static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc) +void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc) { bool need_info = false, call_stack = false; unsigned long mask = x86_pmu.lbr_nr - 1; @@ -704,10 +704,7 @@ void intel_pmu_lbr_read(void) cpuc->lbr_users == cpuc->lbr_pebs_users) return; - if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) - intel_pmu_lbr_read_32(cpuc); - else - intel_pmu_lbr_read_64(cpuc); + x86_pmu.lbr_read(cpuc); intel_pmu_lbr_filter(cpuc); } diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index 5c1ad4360715c..312d27f269e6a 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -694,6 +694,7 @@ struct x86_pmu { bool lbr_pt_coexist; /* (LBR|BTS) may coexist with PT */ void (*lbr_reset)(void); + void (*lbr_read)(struct cpu_hw_events *cpuc); /* * Intel PT/LBR/BTS are exclusive @@ -1085,6 +1086,10 @@ void intel_pmu_lbr_disable_all(void); void intel_pmu_lbr_read(void); +void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc); + +void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc); + void intel_pmu_lbr_init_core(void); void intel_pmu_lbr_init_nhm(void);