linux-kernel - [tip: irq/core] perf: arm_spe_pmu: Convert to new interrupt affinity retrieval API

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Message-ID: <176158267285.2601451.8456875105559362533.tip-bot2@tip-bot2>
Date: Mon, 27 Oct 2025 16:31:12 -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>, Jinjie Ruan <ruanjinjie@...wei.com>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: irq/core] perf: arm_spe_pmu: Convert to new interrupt affinity
 retrieval API

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

Commit-ID:     f6c8aced7c24e0c765d4283144d280c3f36e3906
Gitweb:        https://git.kernel.org/tip/f6c8aced7c24e0c765d4283144d280c3f36e3906
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Mon, 20 Oct 2025 13:29:26 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 27 Oct 2025 17:16:33 +01:00

perf: arm_spe_pmu: Convert to new interrupt affinity retrieval API

Now that the relevant interrupt controllers are equipped with a callback
returning the affinity of per-CPU interrupts, switch the ARM SPE driver
over to this new method.

Signed-off-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Will Deacon <will@...nel.org>
Reviewed-by: Jinjie Ruan <ruanjinjie@...wei.com>
Link: https://patch.msgid.link/20251020122944.3074811-10-maz@kernel.org
---
 drivers/perf/arm_spe_pmu.c |  9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index fa50645..1460b02 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -1287,8 +1287,10 @@ static void arm_spe_pmu_dev_teardown(struct arm_spe_pmu *spe_pmu)
 static int arm_spe_pmu_irq_probe(struct arm_spe_pmu *spe_pmu)
 {
 	struct platform_device *pdev = spe_pmu->pdev;
-	int irq = platform_get_irq(pdev, 0);
+	const struct cpumask *affinity;
+	int irq;
 
+	irq = platform_get_irq_affinity(pdev, 0, &affinity);
 	if (irq < 0)
 		return -ENXIO;
 
@@ -1297,10 +1299,7 @@ static int arm_spe_pmu_irq_probe(struct arm_spe_pmu *spe_pmu)
 		return -EINVAL;
 	}
 
-	if (irq_get_percpu_devid_partition(irq, &spe_pmu->supported_cpus)) {
-		dev_err(&pdev->dev, "failed to get PPI partition (%d)\n", irq);
-		return -EINVAL;
-	}
+	cpumask_copy(&spe_pmu->supported_cpus, affinity);
 
 	spe_pmu->irq = irq;
 	return 0;