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Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/include/asm-arm26/mmu_context.h

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Revision 630 - (show annotations) (download)
Wed Mar 4 11:03:09 2009 UTC (15 years, 6 months ago) by niro
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Tag kernel26-2.6.12-alx-r9
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 */
28 static inline void
29 enter_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 */
37 static inline void
38 switch_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
46 static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
47 {
48 cpu_switch_mm(next->pgd, next);
49 }
50
51 #endif