[mirror_ubuntu-zesty-kernel.git] / include / asm-sh / cacheflush.h

#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 */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_SH_CACHEFLUSH_H
	2	#define __ASM_SH_CACHEFLUSH_H
	3	#ifdef __KERNEL__
	4
	5	#include <asm/cpu/cacheflush.h>
	6
	7	/* Flush (write-back only) a region (smaller than a page) */
	8	extern void __flush_wback_region(void *start, int size);
	9	/* Flush (write-back & invalidate) a region (smaller than a page) */
	10	extern void __flush_purge_region(void *start, int size);
	11	/* Flush (invalidate only) a region (smaller than a page) */
	12	extern void __flush_invalidate_region(void *start, int size);
	13
	14	#define flush_cache_vmap(start, end) flush_cache_all()
	15	#define flush_cache_vunmap(start, end) flush_cache_all()
	16
	17	#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
	18	do { \
	19	flush_cache_page(vma, vaddr, page_to_pfn(page));\
	20	memcpy(dst, src, len); \
	21	flush_icache_user_range(vma, page, vaddr, len); \
	22	} while (0)
	23
	24	#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
	25	do { \
	26	flush_cache_page(vma, vaddr, page_to_pfn(page));\
	27	memcpy(dst, src, len); \
	28	} while (0)
	29
	30	#endif /* __KERNEL__ */
	31	#endif /* __ASM_SH_CACHEFLUSH_H */