From 0e25a5c98067286fc727cf142fc0dadf95790921 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Tue, 8 Feb 2011 09:24:36 +0530 Subject: ARM: perf_event: allow platform-specific interrupt handler Allow a platform-specific IRQ handler to be specified via platform data. This will be used to implement the single-irq workaround for the DB8500. Signed-off-by: Rabin Vincent Acked-by: Lee Jones Acked-by: Will Deacon Signed-off-by: Linus Walleij --- arch/arm/kernel/perf_event.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'arch/arm/kernel/perf_event.c') diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 5efa2647a2f..32395119128 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -377,9 +377,18 @@ validate_group(struct perf_event *event) return 0; } +static irqreturn_t armpmu_platform_irq(int irq, void *dev) +{ + struct arm_pmu_platdata *plat = dev_get_platdata(&pmu_device->dev); + + return plat->handle_irq(irq, dev, armpmu->handle_irq); +} + static int armpmu_reserve_hardware(void) { + struct arm_pmu_platdata *plat; + irq_handler_t handle_irq; int i, err = -ENODEV, irq; pmu_device = reserve_pmu(ARM_PMU_DEVICE_CPU); @@ -390,6 +399,12 @@ armpmu_reserve_hardware(void) init_pmu(ARM_PMU_DEVICE_CPU); + plat = dev_get_platdata(&pmu_device->dev); + if (plat && plat->handle_irq) + handle_irq = armpmu_platform_irq; + else + handle_irq = armpmu->handle_irq; + if (pmu_device->num_resources < 1) { pr_err("no irqs for PMUs defined\n"); return -ENODEV; @@ -400,7 +415,7 @@ armpmu_reserve_hardware(void) if (irq < 0) continue; - err = request_irq(irq, armpmu->handle_irq, + err = request_irq(irq, handle_irq, IRQF_DISABLED | IRQF_NOBALANCING, "armpmu", NULL); if (err) { -- cgit v1.2.3-70-g09d2