switch_to.h File Reference

#include <linux/percpu.h>

Go to the source code of this file.

Macros
#define	PERFMON_IS_SYSWIDE()   (0)
#define	IA64_HAS_EXTRA_STATE(t)
#define	__switch_to(prev, next, last)
#define	switch_to(prev, next, last)   __switch_to(prev, next, last)

Functions
struct task_struct *	ia64_switch_to (void *next_task)
void	ia64_save_extra (struct task_struct *task)
void	ia64_load_extra (struct task_struct *task)

Macro Definition Documentation

#define __switch_to	(		prev,
			next,
			last
	)

Value:

do {                             \
    if (IA64_HAS_EXTRA_STATE(prev))                              \
        ia64_save_extra(prev);                               \
    if (IA64_HAS_EXTRA_STATE(next))                              \
        ia64_load_extra(next);                               \
	ia64_psr(task_pt_regs(next))->dfh = !ia64_is_local_fpu_owner(next);             \
    (last) = ia64_switch_to((next));                             \
} while (0)

Definition at line 44 of file switch_to.h.

#define IA64_HAS_EXTRA_STATE

(

t

)

Value:

((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)   \
     || PERFMON_IS_SYSWIDE())

Definition at line 40 of file switch_to.h.

#define PERFMON_IS_SYSWIDE

(

)

(0)

Definition at line 37 of file switch_to.h.

#define switch_to	(		prev,
			next,
			last
	)		__switch_to(prev, next, last)

Definition at line 76 of file switch_to.h.

Function Documentation

void ia64_load_extra

(

struct task_struct *

task

)

Definition at line 343 of file process.c.

void ia64_save_extra

(

struct task_struct *

task

)

Definition at line 323 of file process.c.

struct task_struct* ia64_switch_to ( void *  next_task )

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