[PATCH v3 09/26] perf: arm_spe_pmu: Convert to new IRQ affinity retrieval API

Marc Zyngier
2025-09-22T08:28:46Z

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>
---
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 369e77ad5f13f..a1c86a1f21427 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -1211,8 +1211,10 @@ 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;

@@ -1221,10 +1223,7 @@ 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;
--
2.47.3