include/asm-sh/cacheflush.h

   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) */
   9 extern void __flush_wback_region(void *start, int size);
  10 /* Flush (write-back & invalidate) a region (smaller than a page) */
  11 extern void __flush_purge_region(void *start, int size);
  12 /* Flush (invalidate only) a region (smaller than a page) */
  13 extern 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 */