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Message-Id: <20250506164740.1317237-13-kan.liang@linux.intel.com>
Date: Tue, 6 May 2025 09:47:37 -0700
From: kan.liang@...ux.intel.com
To: peterz@...radead.org,
mingo@...hat.com,
namhyung@...nel.org,
irogers@...gle.com,
mark.rutland@....com,
linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org
Cc: eranian@...gle.com,
ctshao@...gle.com,
tmricht@...ux.ibm.com,
Kan Liang <kan.liang@...ux.intel.com>,
Bibo Mao <maobibo@...ngson.cn>,
Huacai Chen <chenhuacai@...ngson.cn>
Subject: [RFC PATCH 12/15] loongarch/perf: Remove driver-specific throttle support
From: Kan Liang <kan.liang@...ux.intel.com>
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@...ux.intel.com>
Cc: Bibo Mao <maobibo@...ngson.cn>
Cc: Huacai Chen <chenhuacai@...ngson.cn>
---
arch/loongarch/kernel/perf_event.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/loongarch/kernel/perf_event.c b/arch/loongarch/kernel/perf_event.c
index f86a4b838dd7..8ad098703488 100644
--- a/arch/loongarch/kernel/perf_event.c
+++ b/arch/loongarch/kernel/perf_event.c
@@ -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)
--
2.38.1
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