diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-10-20 13:29:25 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-10-27 17:16:33 +0100 |
| commit | 663783e0013e97e18cc167139ab4319bbeaea399 (patch) | |
| tree | 59c642941b883486330fffa1fa8a72e74739c4ce /drivers/perf/arm_pmu_platform.c | |
| parent | 541454dd204b66c9f03761e00a28ad9702b24829 (diff) | |
| download | linux-next-663783e0013e97e18cc167139ab4319bbeaea399.tar.gz linux-next-663783e0013e97e18cc167139ab4319bbeaea399.zip | |
perf: arm_pmu: Convert to the 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 OF side of the ARM
PMU 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/20251020122944.3074811-9-maz@kernel.org
Diffstat (limited to 'drivers/perf/arm_pmu_platform.c')
| -rw-r--r-- | drivers/perf/arm_pmu_platform.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c index 118170a5cede..9c0494d8a867 100644 --- a/drivers/perf/arm_pmu_platform.c +++ b/drivers/perf/arm_pmu_platform.c @@ -42,14 +42,13 @@ static int probe_current_pmu(struct arm_pmu *pmu, return ret; } -static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq) +static int pmu_parse_percpu_irq(struct arm_pmu *pmu, int irq, + const struct cpumask *affinity) { - int cpu, ret; struct pmu_hw_events __percpu *hw_events = pmu->hw_events; + int cpu; - ret = irq_get_percpu_devid_partition(irq, &pmu->supported_cpus); - if (ret) - return ret; + cpumask_copy(&pmu->supported_cpus, affinity); for_each_cpu(cpu, &pmu->supported_cpus) per_cpu(hw_events->irq, cpu) = irq; @@ -115,9 +114,12 @@ static int pmu_parse_irqs(struct arm_pmu *pmu) } if (num_irqs == 1) { - int irq = platform_get_irq(pdev, 0); + const struct cpumask *affinity; + int irq; + + irq = platform_get_irq_affinity(pdev, 0, &affinity); if ((irq > 0) && irq_is_percpu_devid(irq)) - return pmu_parse_percpu_irq(pmu, irq); + return pmu_parse_percpu_irq(pmu, irq, affinity); } if (nr_cpu_ids != 1 && !pmu_has_irq_affinity(dev->of_node)) |