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 */ 105