diff options
Diffstat (limited to 'arch/x86/events/intel/core.c')
| -rw-r--r-- | arch/x86/events/intel/core.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 1fc01d1f0a9b..27ee47a7be66 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -18,6 +18,7 @@ #include <asm/cpufeature.h> #include <asm/hardirq.h> #include <asm/intel-family.h> +#include <asm/intel_pt.h> #include <asm/apic.h> #include <asm/cpu_device_id.h> @@ -3298,6 +3299,13 @@ static int intel_pmu_hw_config(struct perf_event *event) } } + if (event->attr.aux_output) { + if (!event->attr.precise_ip) + return -EINVAL; + + event->hw.flags |= PERF_X86_EVENT_PEBS_VIA_PT; + } + if (event->attr.type != PERF_TYPE_RAW) return 0; @@ -3816,6 +3824,14 @@ static int intel_pmu_check_period(struct perf_event *event, u64 value) return intel_pmu_has_bts_period(event, value) ? -EINVAL : 0; } +static int intel_pmu_aux_output_match(struct perf_event *event) +{ + if (!x86_pmu.intel_cap.pebs_output_pt_available) + return 0; + + return is_intel_pt_event(event); +} + PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63"); PMU_FORMAT_ATTR(ldlat, "config1:0-15"); @@ -3940,6 +3956,8 @@ static __initconst const struct x86_pmu intel_pmu = { .sched_task = intel_pmu_sched_task, .check_period = intel_pmu_check_period, + + .aux_output_match = intel_pmu_aux_output_match, }; static __init void intel_clovertown_quirk(void) |