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Diffstat (limited to 'arch/arm/kernel/perf_event.c')
-rw-r--r--arch/arm/kernel/perf_event.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index 3a9d627..b41749f 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -318,11 +318,18 @@ static irqreturn_t armpmu_dispatch_irq(int irq, void *dev)
struct arm_pmu *armpmu = (struct arm_pmu *) dev;
struct platform_device *plat_device = armpmu->plat_device;
struct arm_pmu_platdata *plat = dev_get_platdata(&plat_device->dev);
+ int ret;
+ u64 start_clock, finish_clock;
+ start_clock = sched_clock();
if (plat && plat->handle_irq)
- return plat->handle_irq(irq, dev, armpmu->handle_irq);
+ ret = plat->handle_irq(irq, dev, armpmu->handle_irq);
else
- return armpmu->handle_irq(irq, dev);
+ ret = armpmu->handle_irq(irq, dev);
+ finish_clock = sched_clock();
+
+ perf_sample_event_took(finish_clock - start_clock);
+ return ret;
}
static void