diff options
| -rw-r--r-- | Documentation/thermal/sysfs-api.txt | 2 | ||||
| -rw-r--r-- | drivers/acpi/processor_driver.c | 154 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 8 | ||||
| -rw-r--r-- | drivers/idle/intel_idle.c | 2 | ||||
| -rw-r--r-- | drivers/thermal/thermal_sys.c | 4 | ||||
| -rw-r--r-- | include/acpi/processor.h | 1 | ||||
| -rw-r--r-- | include/linux/thermal.h | 4 |
7 files changed, 129 insertions, 46 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index b61e46f449a..1733ab947a9 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -284,7 +284,7 @@ method, the sys I/F structure will be built like this: The framework includes a simple notification mechanism, in the form of a netlink event. Netlink socket initialization is done during the _init_ of the framework. Drivers which intend to use the notification mechanism -just need to call generate_netlink_event() with two arguments viz +just need to call thermal_generate_netlink_event() with two arguments viz (originator, event). Typically the originator will be an integer assigned to a thermal_zone_device when it registers itself with the framework. The event will be one of:{THERMAL_AUX0, THERMAL_AUX1, THERMAL_CRITICAL, diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 0034ede3871..2b805d7ef31 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -84,7 +84,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type); static void acpi_processor_notify(struct acpi_device *device, u32 event); static acpi_status acpi_processor_hotadd_init(struct acpi_processor *pr); static int acpi_processor_handle_eject(struct acpi_processor *pr); - +static int acpi_processor_start(struct acpi_processor *pr); static const struct acpi_device_id processor_device_ids[] = { {ACPI_PROCESSOR_OBJECT_HID, 0}, @@ -423,10 +423,29 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, struct acpi_processor *pr = per_cpu(processors, cpu); if (action == CPU_ONLINE && pr) { - acpi_processor_ppc_has_changed(pr, 0); - acpi_processor_hotplug(pr); - acpi_processor_reevaluate_tstate(pr, action); - acpi_processor_tstate_has_changed(pr); + /* CPU got physically hotplugged and onlined the first time: + * Initialize missing things + */ + if (pr->flags.need_hotplug_init) { + struct cpuidle_driver *idle_driver = + cpuidle_get_driver(); + + printk(KERN_INFO "Will online and init hotplugged " + "CPU: %d\n", pr->id); + WARN(acpi_processor_start(pr), "Failed to start CPU:" + " %d\n", pr->id); + pr->flags.need_hotplug_init = 0; + if (idle_driver && !strcmp(idle_driver->name, + "intel_idle")) { + intel_idle_cpu_init(pr->id); + } + /* Normal CPU soft online event */ + } else { + acpi_processor_ppc_has_changed(pr, 0); + acpi_processor_cst_has_changed(pr); + acpi_processor_reevaluate_tstate(pr, action); + acpi_processor_tstate_has_changed(pr); + } } if (action == CPU_DEAD && pr) { /* invalidate the flag.throttling after one CPU is offline */ @@ -440,6 +459,71 @@ static struct notifier_block acpi_cpu_notifier = .notifier_call = acpi_cpu_soft_notify, }; +/* + * acpi_processor_start() is called by the cpu_hotplug_notifier func: + * acpi_cpu_soft_notify(). Getting it __cpuinit{data} is difficult, the + * root cause seem to be that acpi_processor_uninstall_hotplug_notify() + * is in the module_exit (__exit) func. Allowing acpi_processor_start() + * to not be in __cpuinit section, but being called from __cpuinit funcs + * via __ref looks like the right thing to do here. + */ +static __ref int acpi_processor_start(struct acpi_processor *pr) +{ + struct acpi_device *device = per_cpu(processor_device_array, pr->id); + int result = 0; + +#ifdef CONFIG_CPU_FREQ + acpi_processor_ppc_has_changed(pr, 0); +#endif + acpi_processor_get_throttling_info(pr); + acpi_processor_get_limit_info(pr); + + if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) + acpi_processor_power_init(pr, device); + + pr->cdev = thermal_cooling_device_register("Processor", device, + &processor_cooling_ops); + if (IS_ERR(pr->cdev)) { + result = PTR_ERR(pr->cdev); + goto err_power_exit; + } + + dev_dbg(&device->dev, "registered as cooling_device%d\n", + pr->cdev->id); + + result = sysfs_create_link(&device->dev.kobj, + &pr->cdev->device.kobj, + "thermal_cooling"); + if (result) { + printk(KERN_ERR PREFIX "Create sysfs link\n"); + goto err_thermal_unregister; + } + result = sysfs_create_link(&pr->cdev->device.kobj, + &device->dev.kobj, + "device"); + if (result) { + printk(KERN_ERR PREFIX "Create sysfs link\n"); + goto err_remove_sysfs_thermal; + } + + return 0; + +err_remove_sysfs_thermal: + sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); +err_thermal_unregister: + thermal_cooling_device_unregister(pr->cdev); +err_power_exit: + acpi_processor_power_exit(pr, device); + + return result; +} + +/* + * Do not put anything in here which needs the core to be online. + * For example MSR access or setting up things which check for cpuinfo_x86 + * (cpu_data(cpu)) values, like CPU feature flags, family, model, etc. + * Such things have to be put in and set up above in acpi_processor_start() + */ static int __cpuinit acpi_processor_add(struct acpi_device *device) { struct acpi_processor *pr = NULL; @@ -495,48 +579,27 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) goto err_free_cpumask; } -#ifdef CONFIG_CPU_FREQ - acpi_processor_ppc_has_changed(pr, 0); -#endif - acpi_processor_get_throttling_info(pr); - acpi_processor_get_limit_info(pr); - - if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) - acpi_processor_power_init(pr, device); - - pr->cdev = thermal_cooling_device_register("Processor", device, - &processor_cooling_ops); - if (IS_ERR(pr->cdev)) { - result = PTR_ERR(pr->cdev); - goto err_power_exit; - } + /* + * Do not start hotplugged CPUs now, but when they + * are onlined the first time + */ + if (pr->flags.need_hotplug_init) + return 0; - dev_dbg(&device->dev, "registered as cooling_device%d\n", - pr->cdev->id); + /* + * Do not start hotplugged CPUs now, but when they + * are onlined the first time + */ + if (pr->flags.need_hotplug_init) + return 0; - result = sysfs_create_link(&device->dev.kobj, - &pr->cdev->device.kobj, - "thermal_cooling"); - if (result) { - printk(KERN_ERR PREFIX "Create sysfs link\n"); - goto err_thermal_unregister; - } - result = sysfs_create_link(&pr->cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) { - printk(KERN_ERR PREFIX "Create sysfs link\n"); + result = acpi_processor_start(pr); + if (result) goto err_remove_sysfs; - } return 0; err_remove_sysfs: - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); -err_thermal_unregister: - thermal_cooling_device_unregister(pr->cdev); -err_power_exit: - acpi_processor_power_exit(pr, device); sysfs_remove_link(&device->dev.kobj, "sysdev"); err_free_cpumask: free_cpumask_var(pr->throttling.shared_cpu_map); @@ -735,6 +798,17 @@ static acpi_status acpi_processor_hotadd_init(struct acpi_processor *pr) return AE_ERROR; } + /* CPU got hot-plugged, but cpu_data is not initialized yet + * Set flag to delay cpu_idle/throttling initialization + * in: + * acpi_processor_add() + * acpi_processor_get_info() + * and do it when the CPU gets online the first time + * TBD: Cleanup above functions and try to do this more elegant. + */ + printk(KERN_INFO "CPU %d got hotplugged\n", pr->id); + pr->flags.need_hotplug_init = 1; + return AE_OK; } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 0a7ed69546b..ca191ff9784 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -438,6 +438,14 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, { .callback = init_nvs_nosave, + .ident = "Sony Vaio VPCCW29FX", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VPCCW29FX"), + }, + }, + { + .callback = init_nvs_nosave, .ident = "Averatec AV1020-ED2", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"), diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 20bce51c2e8..54ab97bae04 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -527,7 +527,7 @@ int intel_idle_cpu_init(int cpu) return 0; } - +EXPORT_SYMBOL_GPL(intel_idle_cpu_init); static int __init intel_idle_init(void) { diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c index dd9a5743fa9..220ce7e31cf 100644 --- a/drivers/thermal/thermal_sys.c +++ b/drivers/thermal/thermal_sys.c @@ -1304,7 +1304,7 @@ static struct genl_multicast_group thermal_event_mcgrp = { .name = THERMAL_GENL_MCAST_GROUP_NAME, }; -int generate_netlink_event(u32 orig, enum events event) +int thermal_generate_netlink_event(u32 orig, enum events event) { struct sk_buff *skb; struct nlattr *attr; @@ -1363,7 +1363,7 @@ int generate_netlink_event(u32 orig, enum events event) return result; } -EXPORT_SYMBOL(generate_netlink_event); +EXPORT_SYMBOL(thermal_generate_netlink_event); static int genetlink_init(void) { diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 610f6fb1bbc..8cf7e98a2c7 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -195,6 +195,7 @@ struct acpi_processor_flags { u8 has_cst:1; u8 power_setup_done:1; u8 bm_rld_set:1; + u8 need_hotplug_init:1; }; struct acpi_processor { diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 47b4a27e6e9..796f1ff0388 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -152,9 +152,9 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, void thermal_cooling_device_unregister(struct thermal_cooling_device *); #ifdef CONFIG_NET -extern int generate_netlink_event(u32 orig, enum events event); +extern int thermal_generate_netlink_event(u32 orig, enum events event); #else -static inline int generate_netlink_event(u32 orig, enum events event) +static inline int thermal_generate_netlink_event(u32 orig, enum events event) { return 0; } |