include/asm-sh/cacheflush.h

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