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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-frv/mmu_context.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-frv/mmu_context.h')
-rw-r--r--include/asm-frv/mmu_context.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-frv/mmu_context.h b/include/asm-frv/mmu_context.h
new file mode 100644
index 000000000000..4fb9ea3c5bc9
--- /dev/null
+++ b/include/asm-frv/mmu_context.h
@@ -0,0 +1,50 @@
1/* mmu_context.h: MMU context management routines
2 *
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#ifndef _ASM_MMU_CONTEXT_H
13#define _ASM_MMU_CONTEXT_H
14
15#include <linux/config.h>
16#include <asm/setup.h>
17#include <asm/page.h>
18#include <asm/pgalloc.h>
19
20static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
21{
22}
23
24#ifdef CONFIG_MMU
25extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
26extern void change_mm_context(mm_context_t *old, mm_context_t *ctx, pgd_t *_pgd);
27extern void destroy_context(struct mm_struct *mm);
28
29#else
30#define init_new_context(tsk, mm) ({ 0; })
31#define change_mm_context(old, ctx, _pml4) do {} while(0)
32#define destroy_context(mm) do {} while(0)
33#endif
34
35#define switch_mm(prev, next, tsk) \
36do { \
37 if (prev != next) \
38 change_mm_context(&prev->context, &next->context, next->pgd); \
39} while(0)
40
41#define activate_mm(prev, next) \
42do { \
43 change_mm_context(&prev->context, &next->context, next->pgd); \
44} while(0)
45
46#define deactivate_mm(tsk, mm) \
47do { \
48} while(0)
49
50#endif