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authorKan Liang <kan.liang@linux.intel.com>2025-05-20 11:16:37 -0700
committerPeter Zijlstra <peterz@infradead.org>2025-05-21 13:57:44 +0200
commitf1a6fe2ab1d937370e3f334cbf519c794eef4411 (patch)
treeb5a7dc05e70a27589f48797bfbc3204445b5f8a0
parentperf/arm: Remove driver-specific throttle support (diff)
downloadlinux-rng-f1a6fe2ab1d937370e3f334cbf519c794eef4411.tar.xz
linux-rng-f1a6fe2ab1d937370e3f334cbf519c794eef4411.zip
perf/apple_m1: 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: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20250520181644.2673067-10-kan.liang@linux.intel.com
-rw-r--r--drivers/perf/apple_m1_cpu_pmu.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index df9a28ba69dc..81b6f1a62349 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c
@@ -474,8 +474,7 @@ static irqreturn_t m1_pmu_handle_irq(struct arm_pmu *cpu_pmu)
if (!armpmu_event_set_period(event))
continue;
- if (perf_event_overflow(event, &data, regs))
- m1_pmu_disable_event(event);
+ perf_event_overflow(event, &data, regs);
}
cpu_pmu->start(cpu_pmu);