linux-kernel - [tip: perf/core] perf/x86/zhaoxin: Remove driver-specific throttle support

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Message-ID: <174782976087.406.3880414178178809150.tip-bot2@tip-bot2>
Date: Wed, 21 May 2025 12:16:00 -0000
From: "tip-bot2 for Kan Liang" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Kan Liang <kan.liang@...ux.intel.com>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject:
 [tip: perf/core] perf/x86/zhaoxin: Remove driver-specific throttle support

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     6693da2181e435fcd8fdf776983c1b26ffee81c6
Gitweb:        https://git.kernel.org/tip/6693da2181e435fcd8fdf776983c1b26ffee81c6
Author:        Kan Liang <kan.liang@...ux.intel.com>
AuthorDate:    Tue, 20 May 2025 11:16:33 -07:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 21 May 2025 13:57:43 +02:00

perf/x86/zhaoxin: 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@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lore.kernel.org/r/20250520181644.2673067-6-kan.liang@linux.intel.com
---
 arch/x86/events/zhaoxin/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/events/zhaoxin/core.c b/arch/x86/events/zhaoxin/core.c
index 2fd9b0c..49a5944 100644
--- a/arch/x86/events/zhaoxin/core.c
+++ b/arch/x86/events/zhaoxin/core.c
@@ -397,8 +397,7 @@ again:
 		if (!x86_perf_event_set_period(event))
 			continue;
 
-		if (perf_event_overflow(event, &data, regs))
-			x86_pmu_stop(event, 0);
+		perf_event_overflow(event, &data, regs);
 	}
 
 	/*