11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef __ASM_SH_CACHEFLUSH_H
21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define __ASM_SH_CACHEFLUSH_H
3e7bd34a15b85655f24d1b45edbe3bdfebf9d027ePaul Mundt
41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __KERNEL__
51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds
637443ef3f0406e855e169c87ae3f4ffb4b6ff635Paul Mundt#include <linux/mm.h>
7f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt
8f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt/*
9f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt * Cache flushing:
10f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *
11f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_all() flushes entire cache
12f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_mm(mm) flushes the specified mm context's cache lines
13f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_dup mm(mm) handles cache flushing when forking
14f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_page(mm, vmaddr, pfn) flushes a single page
15f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_range(vma, start, end) flushes a range of pages
16f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *
17f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
18f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_icache_range(start, end) flushes(invalidates) a range for icache
19f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
20f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt *  - flush_cache_sigtramp(vaddr) flushes the signal trampoline
21f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt */
22f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_all)(void *args);
23f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_mm)(void *args);
24f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_dup_mm)(void *args);
25f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_page)(void *args);
26f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_range)(void *args);
27f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_dcache_page)(void *args);
28f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_icache_range)(void *args);
29f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_icache_page)(void *args);
30f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void (*local_flush_cache_sigtramp)(void *args);
31f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt
32f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtstatic inline void cache_noop(void *args) { }
33f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundt
34f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundtextern void (*__flush_wback_region)(void *start, int size);
35f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundtextern void (*__flush_purge_region)(void *start, int size);
36f9bd71f255b4349c4f9f596863161fd5182f67faPaul Mundtextern void (*__flush_invalidate_region)(void *start, int size);
371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds
38f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_all(void);
39f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_mm(struct mm_struct *mm);
40f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_dup_mm(struct mm_struct *mm);
41f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_page(struct vm_area_struct *vma,
42f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt				unsigned long addr, unsigned long pfn);
43f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_range(struct vm_area_struct *vma,
44f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt				 unsigned long start, unsigned long end);
452d4dc890b5c8fabd818a8586607e6843c4375e62Ilya Loginov#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
46f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_dcache_page(struct page *page);
47f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_icache_range(unsigned long start, unsigned long end);
48f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_icache_page(struct vm_area_struct *vma,
49f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt				 struct page *page);
50f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtextern void flush_cache_sigtramp(unsigned long address);
51f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt
52f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundtstruct flusher_data {
53f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt	struct vm_area_struct *vma;
54f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt	unsigned long addr1, addr2;
55f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt};
56f26b2a562b46ab186c8383993ab1332673ac4a47Paul Mundt
57c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt#define ARCH_HAS_FLUSH_ANON_PAGE
58c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundtextern void __flush_anon_page(struct page *page, unsigned long);
59c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt
60c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundtstatic inline void flush_anon_page(struct vm_area_struct *vma,
61c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt				   struct page *page, unsigned long vmaddr)
62c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt{
63c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt	if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
64c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt		__flush_anon_page(page, vmaddr);
65c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt}
66c9334f6067dbe0380141fc75b122e0a533878838James Bottomleystatic inline void flush_kernel_vmap_range(void *addr, int size)
67c9334f6067dbe0380141fc75b122e0a533878838James Bottomley{
68c9334f6067dbe0380141fc75b122e0a533878838James Bottomley	__flush_wback_region(addr, size);
69c9334f6067dbe0380141fc75b122e0a533878838James Bottomley}
70c9334f6067dbe0380141fc75b122e0a533878838James Bottomleystatic inline void invalidate_kernel_vmap_range(void *addr, int size)
71c9334f6067dbe0380141fc75b122e0a533878838James Bottomley{
72c9334f6067dbe0380141fc75b122e0a533878838James Bottomley	__flush_invalidate_region(addr, size);
73c9334f6067dbe0380141fc75b122e0a533878838James Bottomley}
74c0fe478dbb14fd32e71d1383dbe302b54ce94134Paul Mundt
75844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amoroso#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
76844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amorosostatic inline void flush_kernel_dcache_page(struct page *page)
77844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amoroso{
78844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amoroso	flush_dcache_page(page);
79844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amoroso}
80844b43adba74d97f15e56b103c97bfcccaa01aa6Carmelo Amoroso
81ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundtextern void copy_to_user_page(struct vm_area_struct *vma,
82ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundt	struct page *page, unsigned long vaddr, void *dst, const void *src,
83ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundt	unsigned long len);
841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds
85ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundtextern void copy_from_user_page(struct vm_area_struct *vma,
86ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundt	struct page *page, unsigned long vaddr, void *dst, const void *src,
87ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundt	unsigned long len);
88ba1789efea81acc6633f427bfeb871fd608965b5Paul Mundt
89b07f6b327e798610bebaa581ffb7a226f3bcb96bPaul Mundt#define flush_cache_vmap(start, end)		local_flush_cache_all(NULL)
90b07f6b327e798610bebaa581ffb7a226f3bcb96bPaul Mundt#define flush_cache_vunmap(start, end)		local_flush_cache_all(NULL)
911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds
927fbb2d3bdd33e58f54e360df0723d754f0b66153Paul Mundt#define flush_dcache_mmap_lock(mapping)		do { } while (0)
937fbb2d3bdd33e58f54e360df0723d754f0b66153Paul Mundt#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
947fbb2d3bdd33e58f54e360df0723d754f0b66153Paul Mundt
952739742c24f1a55365e71f0722bfdce8994e9c4ePaul Mundtvoid kmap_coherent_init(void);
962739742c24f1a55365e71f0722bfdce8994e9c4ePaul Mundtvoid *kmap_coherent(struct page *page, unsigned long addr);
970906a3ad33a254094fb74828e3ddb9af8771a6daPaul Mundtvoid kunmap_coherent(void *kvaddr);
982739742c24f1a55365e71f0722bfdce8994e9c4ePaul Mundt
9955661fc1f105ed75852e937bf8ea408270eb0ccaPaul Mundt#define PG_dcache_clean	PG_arch_1
100dde5e3ffb770ef2854bbc32c51a365e932919e19Paul Mundt
101ecba1060583635ab55092072441ff903b5e9a659Paul Mundtvoid cpu_cache_init(void);
102ecba1060583635ab55092072441ff903b5e9a659Paul Mundt
1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __KERNEL__ */
1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __ASM_SH_CACHEFLUSH_H */
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