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

tip-bot2 for Marc Zyngier
2025-10-27T16:31:15Z

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@kernel.org>
AuthorDate: Mon, 20 Oct 2025 13:29:26 +01:00
Committer: Thomas Gleixner <tglx@linutronix.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@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Will Deacon <will@kernel.org>
Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.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;