diff options
| -rw-r--r-- | arch/x86/events/core.c | 10 | ||||
| -rw-r--r-- | arch/x86/events/perf_event.h | 2 | ||||
| -rw-r--r-- | include/linux/perf_event.h | 9 |
3 files changed, 15 insertions, 6 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 38b2c779146f..68dea7ce6a22 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2476,7 +2476,7 @@ static int x86_pmu_event_init(struct perf_event *event) if (READ_ONCE(x86_pmu.attr_rdpmc) && !(event->hw.flags & PERF_X86_EVENT_LARGE_PEBS)) - event->hw.flags |= PERF_X86_EVENT_RDPMC_ALLOWED; + event->hw.flags |= PERF_EVENT_FLAG_USER_READ_CNT; return err; } @@ -2510,7 +2510,7 @@ void perf_clear_dirty_counters(void) static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm) { - if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED)) + if (!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT)) return; /* @@ -2531,7 +2531,7 @@ static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm) static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *mm) { - if (!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED)) + if (!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT)) return; if (atomic_dec_and_test(&mm->context.perf_rdpmc_allowed)) @@ -2542,7 +2542,7 @@ static int x86_pmu_event_idx(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; - if (!(hwc->flags & PERF_X86_EVENT_RDPMC_ALLOWED)) + if (!(hwc->flags & PERF_EVENT_FLAG_USER_READ_CNT)) return 0; if (is_metric_idx(hwc->idx)) @@ -2725,7 +2725,7 @@ void arch_perf_update_userpage(struct perf_event *event, userpg->cap_user_time = 0; userpg->cap_user_time_zero = 0; userpg->cap_user_rdpmc = - !!(event->hw.flags & PERF_X86_EVENT_RDPMC_ALLOWED); + !!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT); userpg->pmc_width = x86_pmu.cntval_bits; if (!using_native_sched_clock() || !sched_clock_stable()) diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index 5480db242083..9d376e528dfc 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -74,7 +74,7 @@ static inline bool constraint_match(struct event_constraint *c, u64 ecode) #define PERF_X86_EVENT_PEBS_NA_HSW 0x0010 /* haswell style datala, unknown */ #define PERF_X86_EVENT_EXCL 0x0020 /* HT exclusivity on counter */ #define PERF_X86_EVENT_DYNAMIC 0x0040 /* dynamic alloc'd constraint */ -#define PERF_X86_EVENT_RDPMC_ALLOWED 0x0080 /* grant rdpmc permission */ + #define PERF_X86_EVENT_EXCL_ACCT 0x0100 /* accounted EXCL event */ #define PERF_X86_EVENT_AUTO_RELOAD 0x0200 /* use PEBS auto-reload */ #define PERF_X86_EVENT_LARGE_PEBS 0x0400 /* use large PEBS */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 0dcfd265beed..ba9467972c09 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -130,6 +130,15 @@ struct hw_perf_event_extra { }; /** + * hw_perf_event::flag values + * + * PERF_EVENT_FLAG_ARCH bits are reserved for architecture-specific + * usage. + */ +#define PERF_EVENT_FLAG_ARCH 0x0000ffff +#define PERF_EVENT_FLAG_USER_READ_CNT 0x80000000 + +/** * struct hw_perf_event - performance event hardware details: */ struct hw_perf_event { |