diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 1d648d136413..9d6ac99de30b 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -84,6 +84,7 @@ struct arm_pmu { struct mutex reserve_mutex; u64 max_period; struct platform_device *plat_device; + struct cpu_hw_events *(*get_hw_events)(void); }; /* Set at runtime when we know what CPU type we are. */ @@ -284,7 +285,7 @@ armpmu_start(struct perf_event *event, int flags) static void armpmu_del(struct perf_event *event, int flags) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = armpmu->get_hw_events(); struct hw_perf_event *hwc = &event->hw; int idx = hwc->idx; @@ -300,7 +301,7 @@ armpmu_del(struct perf_event *event, int flags) static int armpmu_add(struct perf_event *event, int flags) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = armpmu->get_hw_events(); struct hw_perf_event *hwc = &event->hw; int idx; int err = 0; @@ -585,7 +586,7 @@ static void armpmu_enable(struct pmu *pmu) { /* Enable all of the perf events on hardware. */ int idx, enabled = 0; - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = armpmu->get_hw_events(); for (idx = 0; idx < armpmu->num_events; ++idx) { struct perf_event *event = cpuc->events[idx]; @@ -678,6 +679,16 @@ static int __init register_pmu_driver(void) } device_initcall(register_pmu_driver); +static struct cpu_hw_events *armpmu_get_cpu_events(void) +{ + return &__get_cpu_var(cpu_hw_events); +} + +static void __init cpu_pmu_init(struct arm_pmu *armpmu) +{ + armpmu->get_hw_events = armpmu_get_cpu_events; +} + /* * CPU PMU identification and registration. */ @@ -728,6 +739,7 @@ init_hw_perf_events(void) if (armpmu) { pr_info("enabled with %s PMU driver, %d counters available\n", armpmu->name, armpmu->num_events); + cpu_pmu_init(armpmu); armpmu_init(armpmu); perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW); } else { |