1#ifndef __SPARC_MMU_CONTEXT_H
2#define __SPARC_MMU_CONTEXT_H
3
4#include <asm/btfixup.h>
5
6#ifndef __ASSEMBLY__
7
8static 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 */
24BTFIXUPDEF_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. */
29BTFIXUPDEF_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