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powerpc/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/20250520181644.2673067-7-kan.liang@linux.intel.com
This commit is contained in:
Kan Liang
2025-05-21 13:57:44 +02:00
committed by Peter Zijlstra
parent 6693da2181
commit 954617a7cc
2 changed files with 3 additions and 6 deletions
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arch/powerpc/perf/core-book3s.c
+2 -4
View File
@@ -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
View File
@@ -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);
}
}