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Linux kernel mirror (for testing)
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linux
1/*
2 * linux/include/asm-arm/mmu_context.h
3 *
4 * Copyright (C) 1996 Russell King.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Changelog:
11 * 27-06-1996 RMK Created
12 */
13#ifndef __ASM_ARM_MMU_CONTEXT_H
14#define __ASM_ARM_MMU_CONTEXT_H
15
16#define init_new_context(tsk,mm) 0
17#define destroy_context(mm) do { } while(0)
18
19/*
20 * This is called when "tsk" is about to enter lazy TLB mode.
21 *
22 * mm: describes the currently active mm context
23 * tsk: task which is entering lazy tlb
24 * cpu: cpu number which is entering lazy tlb
25 *
26 * tsk->mm will be NULL
27 */
28static inline void
29enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
30{
31}
32
33/*
34 * This is the actual mm switch as far as the scheduler
35 * is concerned. No registers are touched.
36 */
37static inline void
38switch_mm(struct mm_struct *prev, struct mm_struct *next,
39 struct task_struct *tsk)
40{
41 cpu_switch_mm(next->pgd, next);
42}
43
44#define deactivate_mm(tsk,mm) do { } while (0)
45
46static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
47{
48 cpu_switch_mm(next->pgd, next);
49}
50
51#endif