xtensa/perf: Remove driver-specific throttle support

The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either.

Kan Liang committed 1 year ago

Commit 5fa541a1 parent e4806c11 file · +1 −2Browse files

Unified · Split

arch/xtensa/kernel/perf_event.c+1−2

@@ -388,8 +388,7 @@ irqreturn_t xtensa_pmu_irq_handler(int irq, void *dev_id) · 387 unmodified lines
388	struct pt_regs *regs = get_irq_regs();	388	struct pt_regs *regs = get_irq_regs();
389		389
390	perf_sample_data_init(&data, 0, last_period);	390	perf_sample_data_init(&data, 0, last_period);
391	if (perf_event_overflow(event, &data, regs))	391	perf_event_overflow(event, &data, regs);
392	xtensa_pmu_stop(event, 0);
393	}	392	}
394		393
395	rc = IRQ_HANDLED;	394	rc = IRQ_HANDLED;