The following commit has been merged into the perf/core branch of tip:
Commit-ID: 954617a7ccfe12808c30668a204eccc4ca7f089f
Gitweb: https://git.kernel.org/tip/954617a7ccfe12808c30668a204eccc4ca7f089f
Author: Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Tue, 20 May 2025 11:16:34 -07:00
Committer: Peter Zijlstra <peterz@infradead.org>
CommitterDate: Wed, 21 May 2025 13:57:44 +02:00
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: 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
---
arch/powerpc/perf/core-book3s.c | 6 ++----
arch/powerpc/perf/core-fsl-emb.c | 3 +--
2 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 42ff4d1..8b00814 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -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);
}
}
diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-emb.c
index d2ffcc7..7120ab2 100644
--- a/arch/powerpc/perf/core-fsl-emb.c
+++ b/arch/powerpc/perf/core-fsl-emb.c
@@ -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);
}
}