1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#ifndef __SPARC_MMU_CONTEXT_H
#define __SPARC_MMU_CONTEXT_H
#include <asm/btfixup.h>
#ifndef __ASSEMBLY__
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk, unsigned cpu)
{
}
/*
* 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)
/*
* 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 *, int)
#define switch_mm(old_mm, mm, tsk, cpu) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk, cpu)
/* Activate a new MM instance for the current task. */
#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL, smp_processor_id())
#endif /* !(__ASSEMBLY__) */
#endif /* !(__SPARC_MMU_CONTEXT_H) */
|
