diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.h | 50 |
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 | |||
20 | static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) | ||
21 | { | ||
22 | } | ||
23 | |||
24 | #ifdef CONFIG_MMU | ||
25 | extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); | ||
26 | extern void change_mm_context(mm_context_t *old, mm_context_t *ctx, pgd_t *_pgd); | ||
27 | extern 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) \ | ||
36 | do { \ | ||
37 | if (prev != next) \ | ||
38 | change_mm_context(&prev->context, &next->context, next->pgd); \ | ||
39 | } while(0) | ||
40 | |||
41 | #define activate_mm(prev, next) \ | ||
42 | do { \ | ||
43 | change_mm_context(&prev->context, &next->context, next->pgd); \ | ||
44 | } while(0) | ||
45 | |||
46 | #define deactivate_mm(tsk, mm) \ | ||
47 | do { \ | ||
48 | } while(0) | ||
49 | |||
50 | #endif | ||