[deliverable/linux.git] / arch / sparc / include / asm / mmu_context_32.h

#ifndef __SPARC_MMU_CONTEXT_H
#define __SPARC_MMU_CONTEXT_H

#ifndef __ASSEMBLY__

#include <asm-generic/mm_hooks.h>

static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}

/* Initialize a new mmu context.  This is invoked when a new
 * address space instance (unique or shared) is instantiated.
 */
int init_new_context(struct task_struct *tsk, struct mm_struct *mm);

/* Destroy a dead context.  This occurs when mmput drops the
 * mm_users count to zero, the mmaps have been released, and
 * all the page tables have been flushed.  Our job is to destroy
 * any remaining processor-specific state.
 */
void destroy_context(struct mm_struct *mm);

/* Switch the current MM context. */
void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
	       struct task_struct *tsk);

#define deactivate_mm(tsk,mm)	do { } while (0)

/* Activate a new MM instance for the current task. */
#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)

#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC_MMU_CONTEXT_H) */
Commit	Line	Data
f5e706ad SR	1	#ifndef __SPARC_MMU_CONTEXT_H
	2	#define __SPARC_MMU_CONTEXT_H
	3
f5e706ad SR	4	#ifndef __ASSEMBLY__
	5
	6	#include <asm-generic/mm_hooks.h>
	7
	8	static inline void enter_lazy_tlb(struct mm_struct mm, struct task_struct tsk)
	9	{
	10	}
	11
b585e855	12	/* Initialize a new mmu context. This is invoked when a new
f5e706ad SR	13	* address space instance (unique or shared) is instantiated.
f5e706ad SR	14	*/
b585e855	15	int init_new_context(struct task_struct tsk, struct mm_struct mm);
f5e706ad	16
b585e855	17	/* Destroy a dead context. This occurs when mmput drops the
f5e706ad SR	18	* mm_users count to zero, the mmaps have been released, and
	19	* all the page tables have been flushed. Our job is to destroy
	20	* any remaining processor-specific state.
	21	*/
b796c6da	22	void destroy_context(struct mm_struct *mm);
f5e706ad SR	23
f5e706ad SR	24	/* Switch the current MM context. */
34d4accf SR	25	void switch_mm(struct mm_struct old_mm, struct mm_struct mm,
34d4accf SR	26	struct task_struct *tsk);
f5e706ad SR	27
	28	#define deactivate_mm(tsk,mm) do { } while (0)
	29
	30	/* Activate a new MM instance for the current task. */
	31	#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)
	32
	33	#endif /* !(__ASSEMBLY__) */
	34
	35	#endif /* !(__SPARC_MMU_CONTEXT_H) */