Commit a33d4d53 authored by Kan Liang's avatar Kan Liang Committed by Peter Zijlstra
Browse files

arc/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.

Signed-off-by: default avatarKan Liang <kan.liang@linux.intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: default avatarVineet Gupta <vgupta@kernel.org>
Link: https://lore.kernel.org/r/20250520181644.2673067-12-kan.liang@linux.intel.com
parent 8c977a17

arch/arc/kernel/perf_event.c

+2 −4
Original line number Diff line number Diff line
@@ -599,10 +599,8 @@ static irqreturn_t arc_pmu_intr(int irq, void *dev) 


		arc_perf_event_update(event, &event->hw, event->hw.idx);

		perf_sample_data_init(&data, 0, hwc->last_period);

		if (arc_pmu_event_set_period(event)) {

			if (perf_event_overflow(event, &data, regs))

				arc_pmu_stop(event, 0);

		}

		if (arc_pmu_event_set_period(event))

			perf_event_overflow(event, &data, regs);



		active_ints &= ~BIT(idx);

	} while (active_ints);