---

yaml
---
r: 279860
b: refs/heads/master
c: e0516a6
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 14eec97ff4635977b026a53b27915ab0dec51e94
+refs/heads/master: e0516a64e7ea9d9522d98f9f5f47aa38f147779f

trunk/arch/arm/include/asm/pmu.h

@@ -27,13 +27,22 @@ enum arm_pmu_type {
 /*
  * struct arm_pmu_platdata - ARM PMU platform data
  *
- * @handle_irq: an optional handler which will be called from the interrupt and
- * passed the address of the low level handler, and can be used to implement
- * any platform specific handling before or after calling it.
+ * @handle_irq: an optional handler which will be called from the
+ *	interrupt and passed the address of the low level handler,
+ *	and can be used to implement any platform specific handling
+ *	before or after calling it.
+ * @enable_irq: an optional handler which will be called after
+ *	request_irq and be used to handle some platform specific
+ *	irq enablement
+ * @disable_irq: an optional handler which will be called before
+ *	free_irq and be used to handle some platform specific
+ *	irq disablement
  */
 struct arm_pmu_platdata {
 	irqreturn_t (*handle_irq)(int irq, void *dev,
 				  irq_handler_t pmu_handler);
+	void (*enable_irq)(int irq);
+	void (*disable_irq)(int irq);
 };
 
 #ifdef CONFIG_CPU_HAS_PMU

trunk/arch/arm/kernel/perf_event.c

@@ -380,15 +380,20 @@ armpmu_release_hardware(struct arm_pmu *armpmu)
 {
 	int i, irq, irqs;
 	struct platform_device *pmu_device = armpmu->plat_device;
+	struct arm_pmu_platdata *plat =
+		dev_get_platdata(&pmu_device->dev);
 
 	irqs = min(pmu_device->num_resources, num_possible_cpus());
 
 	for (i = 0; i < irqs; ++i) {
 		if (!cpumask_test_and_clear_cpu(i, &armpmu->active_irqs))
 			continue;
 		irq = platform_get_irq(pmu_device, i);
-		if (irq >= 0)
+		if (irq >= 0) {
+			if (plat && plat->disable_irq)
+				plat->disable_irq(irq);
 			free_irq(irq, armpmu);
+		}
 	}
 
 	release_pmu(armpmu->type);
@@ -448,7 +453,8 @@ armpmu_reserve_hardware(struct arm_pmu *armpmu)
 				irq);
 			armpmu_release_hardware(armpmu);
 			return err;
-		}
+		} else if (plat && plat->enable_irq)
+			plat->enable_irq(irq);
 
 		cpumask_set_cpu(i, &armpmu->active_irqs);
 	}