Commit 954617a7 authored by Kan Liang's avatar Kan Liang Committed by Peter Zijlstra
Browse files

powerpc/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>
Link: https://lore.kernel.org/r/20250520181644.2673067-7-kan.liang@linux.intel.com
parent 6693da21

arch/powerpc/perf/core-book3s.c

+2 −4
Original line number Diff line number Diff line
@@ -2344,12 +2344,10 @@ static void record_and_restart(struct perf_event *event, unsigned long val, 
			ppmu->get_mem_weight(&data.weight.full, event->attr.sample_type);

			data.sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;

		}

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

			power_pmu_stop(event, 0);

		perf_event_overflow(event, &data, regs);

	} else if (period) {

		/* Account for interrupt in case of invalid SIAR */

		if (perf_event_account_interrupt(event))

			power_pmu_stop(event, 0);

		perf_event_account_interrupt(event);

	}

}

arch/powerpc/perf/core-fsl-emb.c

+1 −2
Original line number Diff line number Diff line
@@ -635,8 +635,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val, 


		perf_sample_data_init(&data, 0, last_period);



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

			fsl_emb_pmu_stop(event, 0);

		perf_event_overflow(event, &data, regs);

	}

}