linux-kernel - [tip: irq/core] perf: arm_spe_pmu: Request specific affinities for per CPU interrupts

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Message-ID: <176158265998.2601451.3908214788174365212.tip-bot2@tip-bot2>
Date: Mon, 27 Oct 2025 16:30:59 -0000
From: "tip-bot2 for Marc Zyngier" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Marc Zyngier <maz@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Will Deacon <will@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: irq/core] perf: arm_spe_pmu: Request specific affinities for
 per CPU interrupts

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     f8112d29ba992e51e4789844340f7da4bdca5fcb
Gitweb:        https://git.kernel.org/tip/f8112d29ba992e51e4789844340f7da4bdca5fcb
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Mon, 20 Oct 2025 13:29:36 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 27 Oct 2025 17:16:36 +01:00

perf: arm_spe_pmu: Request specific affinities for per CPU interrupts

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

Signed-off-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Will Deacon <will@...nel.org>
Link: https://patch.msgid.link/20251020122944.3074811-20-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 1460b02..87908f0 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -1259,8 +1259,8 @@ 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;