From: Yangyu Chen <cyy@cyyself.name>
To: linux-arm-kernel@lists.infradead.org
Cc: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>, Janne Grunau <j@jannau.net>,
Hector Martin <marcan@marcan.st>, Asahi Lina <lina@asahilina.net>,
asahi@lists.linux.dev, linux-kernel@vger.kernel.org,
Yangyu Chen <cyy@cyyself.name>
Subject: [PATCH v1] drivers/perf: apple_m1: fix affinity table for event 0x96 and 0x9b
Date: Thu, 20 Jun 2024 11:04:28 +0800 [thread overview]
Message-ID: <tencent_7B71486CE305DF8AE084B6BB6313EE550C06@qq.com> (raw)
Events 0x96 and 0x9b can be installed on counter 7 only. Fix this to avoid
getting the wrong counter value.
Signed-off-by: Yangyu Chen <cyy@cyyself.name>
---
drivers/perf/apple_m1_cpu_pmu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index f322e5ca1114..b8127e5428e1 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c
@@ -107,12 +107,12 @@ static const u16 m1_pmu_event_affinity[M1_PMU_PERFCTR_LAST + 1] = {
[M1_PMU_PERFCTR_UNKNOWN_93] = ONLY_5_6_7,
[M1_PMU_PERFCTR_UNKNOWN_94] = ONLY_5_6_7,
[M1_PMU_PERFCTR_UNKNOWN_95] = ONLY_5_6_7,
- [M1_PMU_PERFCTR_UNKNOWN_96] = ONLY_5_6_7,
+ [M1_PMU_PERFCTR_UNKNOWN_96] = BIT(7),
[M1_PMU_PERFCTR_UNKNOWN_97] = BIT(7),
[M1_PMU_PERFCTR_UNKNOWN_98] = ONLY_5_6_7,
[M1_PMU_PERFCTR_UNKNOWN_99] = ONLY_5_6_7,
[M1_PMU_PERFCTR_UNKNOWN_9a] = BIT(7),
- [M1_PMU_PERFCTR_UNKNOWN_9b] = ONLY_5_6_7,
+ [M1_PMU_PERFCTR_UNKNOWN_9b] = BIT(7),
[M1_PMU_PERFCTR_UNKNOWN_9c] = ONLY_5_6_7,
[M1_PMU_PERFCTR_UNKNOWN_9f] = BIT(7),
[M1_PMU_PERFCTR_UNKNOWN_bf] = ONLY_5_6_7,
--
2.45.1
next reply other threads:[~2024-06-20 3:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-20 3:04 Yangyu Chen [this message]
2024-07-01 14:01 ` Will Deacon
2024-07-01 14:19 ` Marc Zyngier
2024-07-01 14:43 ` Marc Zyngier
2024-07-02 10:22 ` Yangyu Chen
2024-07-02 10:58 ` Marc Zyngier
2024-07-02 12:13 ` Will Deacon
2024-07-02 12:43 ` Yangyu Chen
2024-07-08 12:00 ` Will Deacon
2024-07-23 16:24 ` Hector Martin
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