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

diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index df9a28ba69dcfad6f33a0d18b620276b910a36ca..81b6f1a623499566ef04d04075752f34e2cb6a92 100644 (file)
--- 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);