include/asm-sh/cacheflush.h

   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 */