1#ifndef __ASM_SH_CACHEFLUSH_H
2#define __ASM_SH_CACHEFLUSH_H
3#ifdef __KERNEL__
4
5#include <linux/mm.h>
6#include <asm/cpu/cacheflush.h>
7
8/* Flush (write-back only) a region (smaller than a page) */
9extern void __flush_wback_region(void *start, int size);
10/* Flush (write-back & invalidate) a region (smaller than a page) */
11extern void __flush_purge_region(void *start, int size);
12/* Flush (invalidate only) a region (smaller than a page) */
13extern void __flush_invalidate_region(void *start, int size);
14
15#define flush_cache_vmap(start, end)		flush_cache_all()
16#define flush_cache_vunmap(start, end)		flush_cache_all()
17
18#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
19	do {							\
20		flush_cache_page(vma, vaddr, page_to_pfn(page));\
21		memcpy(dst, src, len);				\
22		flush_icache_user_range(vma, page, vaddr, len);	\
23	} while (0)
24
25#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
26	do {							\
27		flush_cache_page(vma, vaddr, page_to_pfn(page));\
28		memcpy(dst, src, len);				\
29	} while (0)
30
31#define HAVE_ARCH_UNMAPPED_AREA
32
33#endif /* __KERNEL__ */
34#endif /* __ASM_SH_CACHEFLUSH_H */
35