From: Yicong Yang Date: Mon, 23 Dec 2024 12:51:34 +0000 (+0800) Subject: drivers/perf: hisi: Set correct IRQ affinity for PMUs with no association X-Git-Tag: v6.14-rc1~198^2^2~4 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=555c6e9b03c15edfd4020a8aa5ae7efc142c44e8;p=thirdparty%2Flinux.git drivers/perf: hisi: Set correct IRQ affinity for PMUs with no association 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: 6cd137088fdf ("drivers/perf: hisi: Refactor the detection of associated CPUs") Signed-off-by: Yicong Yang Acked-by: Jonathan Cameron Link: https://lore.kernel.org/r/20241223125134.57885-1-yangyicong@huawei.com Signed-off-by: Will Deacon --- diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pmu.c index 83bdc9c313673..ef058b1dd5094 100644 --- a/drivers/perf/hisilicon/hisi_uncore_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_pmu.c @@ -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; }