diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:01 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:01 +0000 |
| commit | 7996a3d79d55b7f879dfd62e202bbfe2963718d3 (patch) | |
| tree | 8d9f6759fec4099b9be503c11c7ed174f7204980 /libdde-linux26/contrib/include/linux/cpu.h | |
| parent | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (diff) | |
really properly move files
Diffstat (limited to 'libdde-linux26/contrib/include/linux/cpu.h')
| -rw-r--r-- | libdde-linux26/contrib/include/linux/cpu.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/linux/cpu.h b/libdde-linux26/contrib/include/linux/cpu.h new file mode 100644 index 00000000..c2747ac2 --- /dev/null +++ b/libdde-linux26/contrib/include/linux/cpu.h @@ -0,0 +1,154 @@ +/* + * include/linux/cpu.h - generic cpu definition + * + * This is mainly for topological representation. We define the + * basic 'struct cpu' here, which can be embedded in per-arch + * definitions of processors. + * + * Basic handling of the devices is done in drivers/base/cpu.c + * and system devices are handled in drivers/base/sys.c. + * + * CPUs are exported via sysfs in the class/cpu/devices/ + * directory. + * + * Per-cpu interfaces can be implemented using a struct device_interface. + * See the following for how to do this: + * - drivers/base/intf.c + * - Documentation/driver-model/interface.txt + */ +#ifndef _LINUX_CPU_H_ +#define _LINUX_CPU_H_ + +#include <linux/sysdev.h> +#include <linux/node.h> +#include <linux/compiler.h> +#include <linux/cpumask.h> +#include <linux/mutex.h> + +struct cpu { + int node_id; /* The node which contains the CPU */ + int hotpluggable; /* creates sysfs control file if hotpluggable */ + struct sys_device sysdev; +}; + +extern int register_cpu(struct cpu *cpu, int num); +extern struct sys_device *get_cpu_sysdev(unsigned cpu); + +extern int cpu_add_sysdev_attr(struct sysdev_attribute *attr); +extern void cpu_remove_sysdev_attr(struct sysdev_attribute *attr); + +extern int cpu_add_sysdev_attr_group(struct attribute_group *attrs); +extern void cpu_remove_sysdev_attr_group(struct attribute_group *attrs); + +extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls); + +#ifdef CONFIG_HOTPLUG_CPU +extern void unregister_cpu(struct cpu *cpu); +#endif +struct notifier_block; + +#ifdef CONFIG_SMP +/* Need to know about CPUs going up/down? */ +#ifdef CONFIG_HOTPLUG_CPU +extern int register_cpu_notifier(struct notifier_block *nb); +extern void unregister_cpu_notifier(struct notifier_block *nb); +#else + +#ifndef MODULE +extern int register_cpu_notifier(struct notifier_block *nb); +#else +static inline int register_cpu_notifier(struct notifier_block *nb) +{ + return 0; +} +#endif + +static inline void unregister_cpu_notifier(struct notifier_block *nb) +{ +} +#endif + +int cpu_up(unsigned int cpu); +void notify_cpu_starting(unsigned int cpu); +extern void cpu_hotplug_init(void); +extern void cpu_maps_update_begin(void); +extern void cpu_maps_update_done(void); + +#else /* CONFIG_SMP */ + +static inline int register_cpu_notifier(struct notifier_block *nb) +{ + return 0; +} + +static inline void unregister_cpu_notifier(struct notifier_block *nb) +{ +} + +static inline void cpu_hotplug_init(void) +{ +} + +static inline void cpu_maps_update_begin(void) +{ +} + +static inline void cpu_maps_update_done(void) +{ +} + +#endif /* CONFIG_SMP */ +extern struct sysdev_class cpu_sysdev_class; + +#ifdef CONFIG_HOTPLUG_CPU +/* Stop CPUs going up and down. */ + +static inline void cpuhotplug_mutex_lock(struct mutex *cpu_hp_mutex) +{ + mutex_lock(cpu_hp_mutex); +} + +static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex) +{ + mutex_unlock(cpu_hp_mutex); +} + +extern void get_online_cpus(void); +extern void put_online_cpus(void); +#define hotcpu_notifier(fn, pri) { \ + static struct notifier_block fn##_nb __cpuinitdata = \ + { .notifier_call = fn, .priority = pri }; \ + register_cpu_notifier(&fn##_nb); \ +} +#define register_hotcpu_notifier(nb) register_cpu_notifier(nb) +#define unregister_hotcpu_notifier(nb) unregister_cpu_notifier(nb) +int cpu_down(unsigned int cpu); + +#else /* CONFIG_HOTPLUG_CPU */ + +static inline void cpuhotplug_mutex_lock(struct mutex *cpu_hp_mutex) +{ } +static inline void cpuhotplug_mutex_unlock(struct mutex *cpu_hp_mutex) +{ } + +#define get_online_cpus() do { } while (0) +#define put_online_cpus() do { } while (0) +#define hotcpu_notifier(fn, pri) do { (void)(fn); } while (0) +/* These aren't inline functions due to a GCC bug. */ +#define register_hotcpu_notifier(nb) ({ (void)(nb); 0; }) +#define unregister_hotcpu_notifier(nb) ({ (void)(nb); }) +#endif /* CONFIG_HOTPLUG_CPU */ + +#ifdef CONFIG_PM_SLEEP_SMP +extern int suspend_cpu_hotplug; + +extern int disable_nonboot_cpus(void); +extern void enable_nonboot_cpus(void); +#else /* !CONFIG_PM_SLEEP_SMP */ +#define suspend_cpu_hotplug 0 + +static inline int disable_nonboot_cpus(void) { return 0; } +static inline void enable_nonboot_cpus(void) {} +#endif /* !CONFIG_PM_SLEEP_SMP */ + +#endif /* _LINUX_CPU_H_ */ |