diff options
-rw-r--r-- | arch/arm/include/asm/pmu.h | 2 | ||||
-rw-r--r-- | arch/arm/kernel/perf_event.c | 4 | ||||
-rw-r--r-- | arch/arm/kernel/pmu.c | 33 |
3 files changed, 22 insertions, 17 deletions
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h index 7544ce6b481..67c70a31a1b 100644 --- a/arch/arm/include/asm/pmu.h +++ b/arch/arm/include/asm/pmu.h @@ -52,7 +52,7 @@ reserve_pmu(enum arm_pmu_type device); * a cookie. */ extern int -release_pmu(struct platform_device *pdev); +release_pmu(enum arm_pmu_type type); /** * init_pmu() - Initialise the PMU. diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index d53c0abc4dd..a6c643f2d2c 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -435,7 +435,7 @@ armpmu_reserve_hardware(void) if (irq >= 0) free_irq(irq, NULL); } - release_pmu(pmu_device); + release_pmu(ARM_PMU_DEVICE_CPU); pmu_device = NULL; } @@ -454,7 +454,7 @@ armpmu_release_hardware(void) } armpmu->stop(); - release_pmu(pmu_device); + release_pmu(ARM_PMU_DEVICE_CPU); pmu_device = NULL; } diff --git a/arch/arm/kernel/pmu.c b/arch/arm/kernel/pmu.c index 2c79eec1926..87942b931c6 100644 --- a/arch/arm/kernel/pmu.c +++ b/arch/arm/kernel/pmu.c @@ -25,36 +25,41 @@ static volatile long pmu_lock; static struct platform_device *pmu_devices[ARM_NUM_PMU_DEVICES]; -static int __devinit pmu_device_probe(struct platform_device *pdev) +static int __devinit pmu_register(struct platform_device *pdev, + enum arm_pmu_type type) { - - if (pdev->id < 0 || pdev->id >= ARM_NUM_PMU_DEVICES) { + if (type < 0 || type >= ARM_NUM_PMU_DEVICES) { pr_warning("received registration request for unknown " - "device %d\n", pdev->id); + "device %d\n", type); return -EINVAL; } - if (pmu_devices[pdev->id]) + if (pmu_devices[type]) pr_warning("registering new PMU device type %d overwrites " - "previous registration!\n", pdev->id); + "previous registration!\n", type); else pr_info("registered new PMU device of type %d\n", - pdev->id); + type); - pmu_devices[pdev->id] = pdev; + pmu_devices[type] = pdev; return 0; } -static struct platform_driver pmu_driver = { +static int __devinit armpmu_device_probe(struct platform_device *pdev) +{ + return pmu_register(pdev, ARM_PMU_DEVICE_CPU); +} + +static struct platform_driver armpmu_driver = { .driver = { .name = "arm-pmu", }, - .probe = pmu_device_probe, + .probe = armpmu_device_probe, }; static int __init register_pmu_driver(void) { - return platform_driver_register(&pmu_driver); + return platform_driver_register(&armpmu_driver); } device_initcall(register_pmu_driver); @@ -77,11 +82,11 @@ reserve_pmu(enum arm_pmu_type device) EXPORT_SYMBOL_GPL(reserve_pmu); int -release_pmu(struct platform_device *pdev) +release_pmu(enum arm_pmu_type device) { - if (WARN_ON(pdev != pmu_devices[pdev->id])) + if (WARN_ON(!pmu_devices[device])) return -EINVAL; - clear_bit_unlock(pdev->id, &pmu_lock); + clear_bit_unlock(device, &pmu_lock); return 0; } EXPORT_SYMBOL_GPL(release_pmu); |