diff options
Diffstat (limited to 'drivers/acpi/processor_core.c')
-rw-r--r-- | drivers/acpi/processor_core.c | 168 |
1 files changed, 84 insertions, 84 deletions
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index a496a86..53de55e 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -698,6 +698,90 @@ static int acpi_processor_get_info(struct acpi_device *device) static DEFINE_PER_CPU(void *, processor_device_array); +static void acpi_processor_notify(struct acpi_device *device, u32 event) +{ + struct acpi_processor *pr = acpi_driver_data(device); + int saved; + + if (!pr) + return; + + switch (event) { + case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: + saved = pr->performance_platform_limit; + acpi_processor_ppc_has_changed(pr); + if (saved == pr->performance_platform_limit) + break; + acpi_bus_generate_proc_event(device, event, + pr->performance_platform_limit); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, + pr->performance_platform_limit); + break; + case ACPI_PROCESSOR_NOTIFY_POWER: + acpi_processor_cst_has_changed(pr); + acpi_bus_generate_proc_event(device, event, 0); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + break; + case ACPI_PROCESSOR_NOTIFY_THROTTLING: + acpi_processor_tstate_has_changed(pr); + acpi_bus_generate_proc_event(device, event, 0); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Unsupported event [0x%x]\n", event)); + break; + } + + return; +} + +static int acpi_cpu_soft_notify(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct acpi_processor *pr = per_cpu(processors, cpu); + + if (action == CPU_ONLINE && pr) { + acpi_processor_ppc_has_changed(pr); + acpi_processor_cst_has_changed(pr); + acpi_processor_tstate_has_changed(pr); + } + return NOTIFY_OK; +} + +static struct notifier_block acpi_cpu_notifier = +{ + .notifier_call = acpi_cpu_soft_notify, +}; + +static int acpi_processor_add(struct acpi_device *device) +{ + struct acpi_processor *pr = NULL; + + + if (!device) + return -EINVAL; + + pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL); + if (!pr) + return -ENOMEM; + + if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { + kfree(pr); + return -ENOMEM; + } + + pr->handle = device->handle; + strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS); + device->driver_data = pr; + + return 0; +} + static int __cpuinit acpi_processor_start(struct acpi_device *device) { int result = 0; @@ -799,90 +883,6 @@ err_remove_fs: return result; } -static void acpi_processor_notify(struct acpi_device *device, u32 event) -{ - struct acpi_processor *pr = acpi_driver_data(device); - int saved; - - if (!pr) - return; - - switch (event) { - case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: - saved = pr->performance_platform_limit; - acpi_processor_ppc_has_changed(pr); - if (saved == pr->performance_platform_limit) - break; - acpi_bus_generate_proc_event(device, event, - pr->performance_platform_limit); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, - pr->performance_platform_limit); - break; - case ACPI_PROCESSOR_NOTIFY_POWER: - acpi_processor_cst_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, 0); - break; - case ACPI_PROCESSOR_NOTIFY_THROTTLING: - acpi_processor_tstate_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, 0); - default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); - break; - } - - return; -} - -static int acpi_cpu_soft_notify(struct notifier_block *nfb, - unsigned long action, void *hcpu) -{ - unsigned int cpu = (unsigned long)hcpu; - struct acpi_processor *pr = per_cpu(processors, cpu); - - if (action == CPU_ONLINE && pr) { - acpi_processor_ppc_has_changed(pr); - acpi_processor_cst_has_changed(pr); - acpi_processor_tstate_has_changed(pr); - } - return NOTIFY_OK; -} - -static struct notifier_block acpi_cpu_notifier = -{ - .notifier_call = acpi_cpu_soft_notify, -}; - -static int acpi_processor_add(struct acpi_device *device) -{ - struct acpi_processor *pr = NULL; - - - if (!device) - return -EINVAL; - - pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL); - if (!pr) - return -ENOMEM; - - if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) { - kfree(pr); - return -ENOMEM; - } - - pr->handle = device->handle; - strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME); - strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS); - device->driver_data = pr; - - return 0; -} - static int acpi_processor_remove(struct acpi_device *device, int type) { struct acpi_processor *pr = NULL; |