2005-04-16 22:20:36 +00:00
|
|
|
#ifndef __SPARC_MMU_CONTEXT_H
|
|
|
|
|
#define __SPARC_MMU_CONTEXT_H
|
|
|
|
|
|
|
|
|
|
#include <asm/btfixup.h>
|
|
|
|
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
|
|
2007-05-02 17:27:14 +00:00
|
|
|
#include <asm-generic/mm_hooks.h>
|
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
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.
|
|
|
|
|
*/
|
|
|
|
|
#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0)
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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.
|
|
|
|
|
*/
|
|
|
|
|
BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *)
|
|
|
|
|
|
|
|
|
|
#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm)
|
|
|
|
|
|
|
|
|
|
/* Switch the current MM context. */
|
|
|
|
|
BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *)
|
|
|
|
|
|
|
|
|
|
#define switch_mm(old_mm, mm, tsk) BTFIXUP_CALL(switch_mm)(old_mm, mm, 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) */
|
