]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __ASM_SH_CACHEFLUSH_H |
2 | #define __ASM_SH_CACHEFLUSH_H | |
e7bd34a1 | 3 | |
1da177e4 LT |
4 | #ifdef __KERNEL__ |
5 | ||
37443ef3 | 6 | #include <linux/mm.h> |
f9bd71f2 PM |
7 | |
8 | /* | |
9 | * Cache flushing: | |
10 | * | |
11 | * - flush_cache_all() flushes entire cache | |
12 | * - flush_cache_mm(mm) flushes the specified mm context's cache lines | |
13 | * - flush_cache_dup mm(mm) handles cache flushing when forking | |
14 | * - flush_cache_page(mm, vmaddr, pfn) flushes a single page | |
15 | * - flush_cache_range(vma, start, end) flushes a range of pages | |
16 | * | |
17 | * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache | |
18 | * - flush_icache_range(start, end) flushes(invalidates) a range for icache | |
19 | * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache | |
20 | * - flush_cache_sigtramp(vaddr) flushes the signal trampoline | |
21 | */ | |
f26b2a56 PM |
22 | extern void (*local_flush_cache_all)(void *args); |
23 | extern void (*local_flush_cache_mm)(void *args); | |
24 | extern void (*local_flush_cache_dup_mm)(void *args); | |
25 | extern void (*local_flush_cache_page)(void *args); | |
26 | extern void (*local_flush_cache_range)(void *args); | |
27 | extern void (*local_flush_dcache_page)(void *args); | |
28 | extern void (*local_flush_icache_range)(void *args); | |
29 | extern void (*local_flush_icache_page)(void *args); | |
30 | extern void (*local_flush_cache_sigtramp)(void *args); | |
31 | ||
32 | static inline void cache_noop(void *args) { } | |
f9bd71f2 PM |
33 | |
34 | extern void (*__flush_wback_region)(void *start, int size); | |
35 | extern void (*__flush_purge_region)(void *start, int size); | |
36 | extern void (*__flush_invalidate_region)(void *start, int size); | |
1da177e4 | 37 | |
f26b2a56 PM |
38 | extern void flush_cache_all(void); |
39 | extern void flush_cache_mm(struct mm_struct *mm); | |
40 | extern void flush_cache_dup_mm(struct mm_struct *mm); | |
41 | extern void flush_cache_page(struct vm_area_struct *vma, | |
42 | unsigned long addr, unsigned long pfn); | |
43 | extern void flush_cache_range(struct vm_area_struct *vma, | |
44 | unsigned long start, unsigned long end); | |
2d4dc890 | 45 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
f26b2a56 PM |
46 | extern void flush_dcache_page(struct page *page); |
47 | extern void flush_icache_range(unsigned long start, unsigned long end); | |
48 | extern void flush_icache_page(struct vm_area_struct *vma, | |
49 | struct page *page); | |
50 | extern void flush_cache_sigtramp(unsigned long address); | |
51 | ||
52 | struct flusher_data { | |
53 | struct vm_area_struct *vma; | |
54 | unsigned long addr1, addr2; | |
55 | }; | |
56 | ||
c0fe478d PM |
57 | #define ARCH_HAS_FLUSH_ANON_PAGE |
58 | extern void __flush_anon_page(struct page *page, unsigned long); | |
59 | ||
60 | static inline void flush_anon_page(struct vm_area_struct *vma, | |
61 | struct page *page, unsigned long vmaddr) | |
62 | { | |
63 | if (boot_cpu_data.dcache.n_aliases && PageAnon(page)) | |
64 | __flush_anon_page(page, vmaddr); | |
65 | } | |
c0fe478d | 66 | |
844b43ad CA |
67 | #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE |
68 | static inline void flush_kernel_dcache_page(struct page *page) | |
69 | { | |
70 | flush_dcache_page(page); | |
71 | } | |
72 | ||
ba1789ef PM |
73 | extern void copy_to_user_page(struct vm_area_struct *vma, |
74 | struct page *page, unsigned long vaddr, void *dst, const void *src, | |
75 | unsigned long len); | |
1da177e4 | 76 | |
ba1789ef PM |
77 | extern void copy_from_user_page(struct vm_area_struct *vma, |
78 | struct page *page, unsigned long vaddr, void *dst, const void *src, | |
79 | unsigned long len); | |
ba1789ef PM |
80 | |
81 | #define flush_cache_vmap(start, end) flush_cache_all() | |
82 | #define flush_cache_vunmap(start, end) flush_cache_all() | |
1da177e4 | 83 | |
7fbb2d3b PM |
84 | #define flush_dcache_mmap_lock(mapping) do { } while (0) |
85 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
86 | ||
2739742c PM |
87 | void kmap_coherent_init(void); |
88 | void *kmap_coherent(struct page *page, unsigned long addr); | |
0906a3ad | 89 | void kunmap_coherent(void *kvaddr); |
2739742c | 90 | |
dde5e3ff PM |
91 | #define PG_dcache_dirty PG_arch_1 |
92 | ||
ecba1060 PM |
93 | void cpu_cache_init(void); |
94 | ||
1da177e4 LT |
95 | #endif /* __KERNEL__ */ |
96 | #endif /* __ASM_SH_CACHEFLUSH_H */ |