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authorJames Morris <james.morris@microsoft.com>2018-03-23 08:26:16 +1100
committerJames Morris <james.morris@microsoft.com>2018-03-23 08:26:16 +1100
commit5893ed18a26d1f56b97c0290b0cbbc2d49d6de28 (patch)
tree97aa931519fca28a0a12fad7485347198f8267cc /drivers/perf/arm_pmu_platform.c
parent7bd698b3c04e61ee9e03d4c2a55003f75df14dca (diff)
parentc698ca5278934c0ae32297a8725ced2e27585d7f (diff)
Merge tag 'v4.16-rc6' into next-general
Merge to Linux 4.16-rc6 at the request of Jarkko, for his TPM updates.
Diffstat (limited to 'drivers/perf/arm_pmu_platform.c')
-rw-r--r--drivers/perf/arm_pmu_platform.c37
1 files changed, 30 insertions, 7 deletions
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 46501cc79fd7..7729eda5909d 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -127,13 +127,6 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
pdev->dev.of_node);
}
- /*
- * Some platforms have all PMU IRQs OR'd into a single IRQ, with a
- * special platdata function that attempts to demux them.
- */
- if (dev_get_platdata(&pdev->dev))
- cpumask_setall(&pmu->supported_cpus);
-
for (i = 0; i < num_irqs; i++) {
int cpu, irq;
@@ -164,6 +157,36 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
return 0;
}
+static int armpmu_request_irqs(struct arm_pmu *armpmu)
+{
+ struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
+ int cpu, err;
+
+ for_each_cpu(cpu, &armpmu->supported_cpus) {
+ int irq = per_cpu(hw_events->irq, cpu);
+ if (!irq)
+ continue;
+
+ err = armpmu_request_irq(irq, cpu);
+ if (err)
+ break;
+ }
+
+ return err;
+}
+
+static void armpmu_free_irqs(struct arm_pmu *armpmu)
+{
+ int cpu;
+ struct pmu_hw_events __percpu *hw_events = armpmu->hw_events;
+
+ for_each_cpu(cpu, &armpmu->supported_cpus) {
+ int irq = per_cpu(hw_events->irq, cpu);
+
+ armpmu_free_irq(irq, cpu);
+ }
+}
+
int arm_pmu_device_probe(struct platform_device *pdev,
const struct of_device_id *of_table,
const struct pmu_probe_info *probe_table)