diff options
Diffstat (limited to 'include/asm-sh/cacheflush.h')
| -rw-r--r-- | include/asm-sh/cacheflush.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h new file mode 100644 index 00000000000..9dfb33edb00 --- /dev/null +++ b/include/asm-sh/cacheflush.h @@ -0,0 +1,31 @@ +#ifndef __ASM_SH_CACHEFLUSH_H +#define __ASM_SH_CACHEFLUSH_H +#ifdef __KERNEL__ + +#include <asm/cpu/cacheflush.h> + +/* Flush (write-back only) a region (smaller than a page) */ +extern void __flush_wback_region(void *start, int size); +/* Flush (write-back & invalidate) a region (smaller than a page) */ +extern void __flush_purge_region(void *start, int size); +/* Flush (invalidate only) a region (smaller than a page) */ +extern void __flush_invalidate_region(void *start, int size); + +#define flush_cache_vmap(start, end) flush_cache_all() +#define flush_cache_vunmap(start, end) flush_cache_all() + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + flush_icache_user_range(vma, page, vaddr, len); \ + } while (0) + +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + memcpy(dst, src, len); \ + } while (0) + +#endif /* __KERNEL__ */ +#endif /* __ASM_SH_CACHEFLUSH_H */ |