1 files changed, 31 insertions, 0 deletions

diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h
new file mode 100644
index 000000000000..9dfb33edb008
--- /dev/null
+++ b/include/asm-sh/cacheflush.h
@@ -0,0 +1,31 @@
+#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 */