[PATCH 19/25] perf: arm_spe_pmu: Request specific affinities for percpu IRQ
From: Marc Zyngier <maz@kernel.org>
Date: 2025-09-08 16:31:52
Also in:
linux-acpi, lkml
Subsystem:
arm pmu profiling and debugging, the rest · Maintainers:
Will Deacon, Mark Rutland, Linus Torvalds
Let the SPE driver request IRQs with an affinity mask matching the SPE implementation affinity. Signed-off-by: Marc Zyngier <maz@kernel.org> --- drivers/perf/arm_spe_pmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index a1c86a1f21427..f8763f0771776 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c@@ -1183,8 +1183,8 @@ static int arm_spe_pmu_dev_init(struct arm_spe_pmu *spe_pmu) return -ENXIO; /* Request our PPIs (note that the IRQ is still disabled) */ - ret = request_percpu_irq(spe_pmu->irq, arm_spe_pmu_irq_handler, DRVNAME, - spe_pmu->handle); + ret = request_percpu_irq_affinity(spe_pmu->irq, arm_spe_pmu_irq_handler, + DRVNAME, mask, spe_pmu->handle); if (ret) return ret;
--
2.39.2