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drivers/perf: hisi: Set correct IRQ affinity for PMUs with no association

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For PMUs with no association, the hisi_pmu->on_cpu is initialized
according to the NUMA locality but use a wrong CPU for the interrupt
affinity. The CPU selected from cpumask_local_spread() can be different
from the CPU by the cpuhp callback. Fix this by setting the IRQ affinity
to hisi_pmu->on_cpu.

Fixes: 6cd137088f ("drivers/perf: hisi: Refactor the detection of associated CPUs")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20241223125134.57885-1-yangyicong@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Yicong Yang 2024-12-23 20:51:34 +08:00 committed by Will Deacon
parent f3edf03a4c
commit 555c6e9b03
1 changed files with 1 additions and 1 deletions
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2
drivers/perf/hisilicon/hisi_uncore_pmu.c
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@ -510,7 +510,7 @@ int hisi_uncore_pmu_online_cpu(unsigned int cpu, struct hlist_node *node)
return 0;
hisi_pmu->on_cpu = cpumask_local_spread(0, dev_to_node(hisi_pmu->dev));
WARN_ON(irq_set_affinity(hisi_pmu->irq, cpumask_of(cpu)));
WARN_ON(irq_set_affinity(hisi_pmu->irq, cpumask_of(hisi_pmu->on_cpu)));
return 0;
}