1 #ifndef __SPARC_MMU_CONTEXT_H
2 #define __SPARC_MMU_CONTEXT_H
3
4 #include <asm/btfixup.h>
5
6 #ifndef __ASSEMBLY__
7
8 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk, unsigned cpu)
9 {
10 }
11
12 /*
13 * Initialize a new mmu context. This is invoked when a new
14 * address space instance (unique or shared) is instantiated.
15 */
16 #define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0)
17
18 /*
19 * Destroy a dead context. This occurs when mmput drops the
20 * mm_users count to zero, the mmaps have been released, and
21 * all the page tables have been flushed. Our job is to destroy
22 * any remaining processor-specific state.
23 */
24 BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *)
25
26 #define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm)
27
28 /* Switch the current MM context. */
29 BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *, int)
30
31 #define switch_mm(old_mm, mm, tsk, cpu) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk, cpu)
32
33 /* Activate a new MM instance for the current task. */
34 #define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL, smp_processor_id())
35
36 #endif /* !(__ASSEMBLY__) */
37
38 #endif /* !(__SPARC_MMU_CONTEXT_H) */
39
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