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Sam Ravnborgf5e706a2008-07-17 21:55:51 -07001#ifndef __SPARC_MMU_CONTEXT_H
2#define __SPARC_MMU_CONTEXT_H
3
Sam Ravnborgf5e706a2008-07-17 21:55:51 -07004#ifndef __ASSEMBLY__
5
6#include <asm-generic/mm_hooks.h>
7
8static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
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 */
Sam Ravnborgb796c6d2012-05-13 10:30:54 +020024void destroy_context(struct mm_struct *mm);
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070025
26/* Switch the current MM context. */
Sam Ravnborg34d4acc2012-05-12 08:04:11 +000027void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
28 struct task_struct *tsk);
Sam Ravnborgf5e706a2008-07-17 21:55:51 -070029
30#define deactivate_mm(tsk,mm) do { } while (0)
31
32/* Activate a new MM instance for the current task. */
33#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)
34
35#endif /* !(__ASSEMBLY__) */
36
37#endif /* !(__SPARC_MMU_CONTEXT_H) */