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loongarch/perf: Remove driver-specific throttle support

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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/20250520181644.2673067-14-kan.liang@linux.intel.com
This commit is contained in:
Kan Liang 2025-05-20 11:16:41 -07:00 • committed by Peter Zijlstra
parent 141fedea79
commit b82f8885d1
1 changed files with 1 additions and 2 deletions
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3
arch/loongarch/kernel/perf_event.c
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@ -479,8 +479,7 @@ static void handle_associated_event(struct cpu_hw_events *cpuc, int idx,
if (!loongarch_pmu_event_set_period(event, hwc, idx))
return;
if (perf_event_overflow(event, data, regs))
loongarch_pmu_disable_event(idx);
perf_event_overflow(event, data, regs);
}
static irqreturn_t pmu_handle_irq(int irq, void *dev)