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-v850/cacheflush.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-v850/cacheflush.h')
-rw-r--r-- | include/asm-v850/cacheflush.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-v850/cacheflush.h b/include/asm-v850/cacheflush.h new file mode 100644 index 000000000000..e1a87f82f1a4 --- /dev/null +++ b/include/asm-v850/cacheflush.h | |||
@@ -0,0 +1,69 @@ | |||
1 | /* | ||
2 | * include/asm-v850/cacheflush.h | ||
3 | * | ||
4 | * Copyright (C) 2001,02,03 NEC Electronics Corporation | ||
5 | * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General | ||
8 | * Public License. See the file COPYING in the main directory of this | ||
9 | * archive for more details. | ||
10 | * | ||
11 | * Written by Miles Bader <miles@gnu.org> | ||
12 | */ | ||
13 | |||
14 | #ifndef __V850_CACHEFLUSH_H__ | ||
15 | #define __V850_CACHEFLUSH_H__ | ||
16 | |||
17 | /* Somebody depends on this; sigh... */ | ||
18 | #include <linux/mm.h> | ||
19 | |||
20 | #include <asm/machdep.h> | ||
21 | |||
22 | |||
23 | /* The following are all used by the kernel in ways that only affect | ||
24 | systems with MMUs, so we don't need them. */ | ||
25 | #define flush_cache_all() ((void)0) | ||
26 | #define flush_cache_mm(mm) ((void)0) | ||
27 | #define flush_cache_range(vma, start, end) ((void)0) | ||
28 | #define flush_cache_page(vma, vmaddr, pfn) ((void)0) | ||
29 | #define flush_dcache_page(page) ((void)0) | ||
30 | #define flush_dcache_mmap_lock(mapping) ((void)0) | ||
31 | #define flush_dcache_mmap_unlock(mapping) ((void)0) | ||
32 | #define flush_cache_vmap(start, end) ((void)0) | ||
33 | #define flush_cache_vunmap(start, end) ((void)0) | ||
34 | |||
35 | #ifdef CONFIG_NO_CACHE | ||
36 | |||
37 | /* Some systems have no cache at all, in which case we don't need these | ||
38 | either. */ | ||
39 | #define flush_icache() ((void)0) | ||
40 | #define flush_icache_range(start, end) ((void)0) | ||
41 | #define flush_icache_page(vma,pg) ((void)0) | ||
42 | #define flush_icache_user_range(vma,pg,adr,len) ((void)0) | ||
43 | #define flush_cache_sigtramp(vaddr) ((void)0) | ||
44 | |||
45 | #else /* !CONFIG_NO_CACHE */ | ||
46 | |||
47 | struct page; | ||
48 | struct mm_struct; | ||
49 | struct vm_area_struct; | ||
50 | |||
51 | /* Otherwise, somebody had better define them. */ | ||
52 | extern void flush_icache (void); | ||
53 | extern void flush_icache_range (unsigned long start, unsigned long end); | ||
54 | extern void flush_icache_page (struct vm_area_struct *vma, struct page *page); | ||
55 | extern void flush_icache_user_range (struct vm_area_struct *vma, | ||
56 | struct page *page, | ||
57 | unsigned long adr, int len); | ||
58 | extern void flush_cache_sigtramp (unsigned long addr); | ||
59 | |||
60 | #endif /* CONFIG_NO_CACHE */ | ||
61 | |||
62 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | ||
63 | do { memcpy(dst, src, len); \ | ||
64 | flush_icache_user_range(vma, page, vaddr, len); \ | ||
65 | } while (0) | ||
66 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | ||
67 | memcpy(dst, src, len) | ||
68 | |||
69 | #endif /* __V850_CACHEFLUSH_H__ */ | ||