[PATCH 19/25] perf: arm_spe_pmu: Request specific affinities for percpu IRQ

Marc Zyngier maz at kernel.org
Mon Sep 8 09:31:21 PDT 2025


Let the SPE driver request IRQs with an affinity mask matching
the SPE implementation affinity.

Signed-off-by: Marc Zyngier <maz at 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




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