cpu.h File Reference

#include <linux/node.h>
#include <linux/compiler.h>
#include <linux/cpumask.h>

Go to the source code of this file.

Data Structures
struct	cpu

Macros
#define	CPU_ONLINE   0x0002 /* CPU (unsigned)v is up */
#define	CPU_UP_PREPARE   0x0003 /* CPU (unsigned)v coming up */
#define	CPU_UP_CANCELED   0x0004 /* CPU (unsigned)v NOT coming up */
#define	CPU_DOWN_PREPARE   0x0005 /* CPU (unsigned)v going down */
#define	CPU_DOWN_FAILED   0x0006 /* CPU (unsigned)v NOT going down */
#define	CPU_DEAD   0x0007 /* CPU (unsigned)v dead */
#define	CPU_DYING
#define	CPU_POST_DEAD
#define	CPU_STARTING
#define	CPU_TASKS_FROZEN   0x0010
#define	CPU_ONLINE_FROZEN   (CPU_ONLINE | CPU_TASKS_FROZEN)
#define	CPU_UP_PREPARE_FROZEN   (CPU_UP_PREPARE | CPU_TASKS_FROZEN)
#define	CPU_UP_CANCELED_FROZEN   (CPU_UP_CANCELED | CPU_TASKS_FROZEN)
#define	CPU_DOWN_PREPARE_FROZEN   (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
#define	CPU_DOWN_FAILED_FROZEN   (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
#define	CPU_DEAD_FROZEN   (CPU_DEAD | CPU_TASKS_FROZEN)
#define	CPU_DYING_FROZEN   (CPU_DYING | CPU_TASKS_FROZEN)
#define	CPU_STARTING_FROZEN   (CPU_STARTING | CPU_TASKS_FROZEN)
#define	cpu_notifier(fn, pri)   do { (void)(fn); } while (0)
#define	get_online_cpus()   do { } while (0)
#define	put_online_cpus()   do { } while (0)
#define	hotcpu_notifier(fn, pri)   do { (void)(fn); } while (0)
#define	register_hotcpu_notifier(nb)   ({ (void)(nb); 0; })
#define	unregister_hotcpu_notifier(nb)   ({ (void)(nb); })

Enumerations
enum	{   CPU_PRI_SCHED_ACTIVE = INT_MAX, CPU_PRI_CPUSET_ACTIVE = INT_MAX - 1, CPU_PRI_SCHED_INACTIVE = INT_MIN + 1, CPU_PRI_CPUSET_INACTIVE = INT_MIN,   CPU_PRI_PERF = 20, CPU_PRI_MIGRATION = 10, CPU_PRI_WORKQUEUE_UP = 5, CPU_PRI_WORKQUEUE_DOWN = -5 }

Functions
int	register_cpu (struct cpu *cpu, int num)
struct device *	get_cpu_device (unsigned cpu)
bool	cpu_is_hotpluggable (unsigned cpu)
int	cpu_add_dev_attr (struct device_attribute *attr)
void	cpu_remove_dev_attr (struct device_attribute *attr)
int	cpu_add_dev_attr_group (struct attribute_group *attrs)
void	cpu_remove_dev_attr_group (struct attribute_group *attrs)

Variables
struct bus_type	cpu_subsys

Macro Definition Documentation

#define CPU_DEAD   0x0007 /* CPU (unsigned)v dead */

Definition at line 86 of file cpu.h.

#define CPU_DEAD_FROZEN   (CPU_DEAD | CPU_TASKS_FROZEN)

Definition at line 101 of file cpu.h.

#define CPU_DOWN_FAILED   0x0006 /* CPU (unsigned)v NOT going down */

Definition at line 85 of file cpu.h.

#define CPU_DOWN_FAILED_FROZEN   (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)

Definition at line 100 of file cpu.h.

#define CPU_DOWN_PREPARE   0x0005 /* CPU (unsigned)v going down */

Definition at line 84 of file cpu.h.

#define CPU_DOWN_PREPARE_FROZEN   (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)

Definition at line 99 of file cpu.h.

#define CPU_DYING

Value:

0x0008 /* CPU (unsigned)v not running any task,
                    * not handling interrupts, soon dead.
                    * Called on the dying cpu, interrupts
                    * are already disabled. Must not
                    * sleep, must not fail */

Definition at line 87 of file cpu.h.

#define CPU_DYING_FROZEN   (CPU_DYING | CPU_TASKS_FROZEN)

Definition at line 102 of file cpu.h.

#define cpu_notifier	(		fn,
			pri
	)		do { (void)(fn); } while (0)

Definition at line 143 of file cpu.h.

#define CPU_ONLINE   0x0002 /* CPU (unsigned)v is up */

Definition at line 81 of file cpu.h.

#define CPU_ONLINE_FROZEN   (CPU_ONLINE | CPU_TASKS_FROZEN)

Definition at line 96 of file cpu.h.

#define CPU_POST_DEAD

Value:

0x0009 /* CPU (unsigned)v dead, cpu_hotplug
                    * lock is dropped */

Definition at line 88 of file cpu.h.

#define CPU_STARTING

Value:

0x000A /* CPU (unsigned)v soon running.
                    * Called on the new cpu, just before
                    * enabling interrupts. Must not sleep,
                    * must not fail */

Definition at line 89 of file cpu.h.

#define CPU_STARTING_FROZEN   (CPU_STARTING | CPU_TASKS_FROZEN)

Definition at line 103 of file cpu.h.

#define CPU_TASKS_FROZEN   0x0010

Definition at line 94 of file cpu.h.

#define CPU_UP_CANCELED   0x0004 /* CPU (unsigned)v NOT coming up */

Definition at line 83 of file cpu.h.

#define CPU_UP_CANCELED_FROZEN   (CPU_UP_CANCELED | CPU_TASKS_FROZEN)

Definition at line 98 of file cpu.h.

#define CPU_UP_PREPARE   0x0003 /* CPU (unsigned)v coming up */

Definition at line 82 of file cpu.h.

#define CPU_UP_PREPARE_FROZEN   (CPU_UP_PREPARE | CPU_TASKS_FROZEN)

Definition at line 97 of file cpu.h.

#define get_online_cpus

(

)

do { } while (0)

Definition at line 191 of file cpu.h.

#define hotcpu_notifier	(		fn,
			pri
	)		do { (void)(fn); } while (0)

Definition at line 193 of file cpu.h.

#define put_online_cpus

(

)

do { } while (0)

Definition at line 192 of file cpu.h.

#define register_hotcpu_notifier

(

nb

)

({ (void)(nb); 0; })

Definition at line 195 of file cpu.h.

#define unregister_hotcpu_notifier

(

nb

)

({ (void)(nb); })

Definition at line 196 of file cpu.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

CPU_PRI_SCHED_ACTIVE
CPU_PRI_CPUSET_ACTIVE
CPU_PRI_SCHED_INACTIVE
CPU_PRI_CPUSET_INACTIVE
CPU_PRI_PERF
CPU_PRI_MIGRATION
CPU_PRI_WORKQUEUE_UP
CPU_PRI_WORKQUEUE_DOWN

Definition at line 56 of file cpu.h.

Function Documentation

int cpu_add_dev_attr

(

struct device_attribute *

attr

)

Definition at line 531 of file sysfs.c.

int cpu_add_dev_attr_group

(

struct attribute_group *

attrs

)

Definition at line 546 of file sysfs.c.

bool cpu_is_hotpluggable

(

unsigned

cpu

)

Definition at line 304 of file cpu.c.

void cpu_remove_dev_attr

(

struct device_attribute *

attr

)

Definition at line 566 of file sysfs.c.

void cpu_remove_dev_attr_group

(

struct attribute_group *

attrs

)

Definition at line 580 of file sysfs.c.

struct device* get_cpu_device ( unsigned  cpu )

read

Definition at line 266 of file cpu.c.

int register_cpu	(	struct cpu *	cpu,
		int	num
	)

Definition at line 239 of file cpu.c.

Variable Documentation

struct bus_type cpu_subsys

Definition at line 19 of file cpu.c.