arm/arm64: pmu: Distinguish percpu irq and percpu_devid irq

arm_pmu interrupts are maked as PERCPU even when these are not local
physical interrupts to a single CPU. When using non-local interrupts,
interrupts marked as PERCPU will not get freed not disabled properly
by the PMU driver.

Check if interrupts are local to a single CPU with PERCPU_DEVID since
this is what the PMU driver really needs to know.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index d14fc2e..7bc5eee 100644 (file)
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -539,7 +539,7 @@ void armpmu_free_irq(struct arm_pmu *armpmu, int cpu)
        if (!cpumask_test_and_clear_cpu(cpu, &armpmu->active_irqs))
                return;
 
-       if (irq_is_percpu(irq)) {
+       if (irq_is_percpu_devid(irq)) {
                free_percpu_irq(irq, &hw_events->percpu_pmu);
                cpumask_clear(&armpmu->active_irqs);
                return;
@@ -565,10 +565,10 @@ int armpmu_request_irq(struct arm_pmu *armpmu, int cpu)
        if (!irq)
                return 0;
 
-       if (irq_is_percpu(irq) && cpumask_empty(&armpmu->active_irqs)) {
+       if (irq_is_percpu_devid(irq) && cpumask_empty(&armpmu->active_irqs)) {
                err = request_percpu_irq(irq, handler, "arm-pmu",
                                         &hw_events->percpu_pmu);
-       } else if (irq_is_percpu(irq)) {
+       } else if (irq_is_percpu_devid(irq)) {
                int other_cpu = cpumask_first(&armpmu->active_irqs);
                int other_irq = per_cpu(hw_events->irq, other_cpu);
 
@@ -649,7 +649,7 @@ static int arm_perf_starting_cpu(unsigned int cpu, struct hlist_node *node)
 
        irq = armpmu_get_cpu_irq(pmu, cpu);
        if (irq) {
-               if (irq_is_percpu(irq)) {
+               if (irq_is_percpu_devid(irq)) {
                        enable_percpu_irq(irq, IRQ_TYPE_NONE);
                        return 0;
                }
@@ -667,7 +667,7 @@ static int arm_perf_teardown_cpu(unsigned int cpu, struct hlist_node *node)
                return 0;
 
        irq = armpmu_get_cpu_irq(pmu, cpu);
-       if (irq && irq_is_percpu(irq))
+       if (irq && irq_is_percpu_devid(irq))
                disable_percpu_irq(irq);
 
        return 0;

diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 4eafa7a..bbc64ee 100644 (file)
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -126,7 +126,7 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
 
        if (num_irqs == 1) {
                int irq = platform_get_irq(pdev, 0);
-               if (irq && irq_is_percpu(irq))
+               if (irq && irq_is_percpu_devid(irq))
                        return pmu_parse_percpu_irq(pmu, irq);
        }
 
@@ -149,7 +149,7 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
                if (WARN_ON(irq <= 0))
                        continue;
 
-               if (irq_is_percpu(irq)) {
+               if (irq_is_percpu_devid(irq)) {
                        pr_warn("multiple PPIs or mismatched SPI/PPI detected\n");
                        return -EINVAL;
                }