sh: Optimized copy_{to,from}_user_page() for SH-4.

[linux-2.6] / include / asm-sh / cacheflush.h

diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h
index aa558da084715874d5169f5b3a58863db83849ee..b91246153b7ef4b90372b8e1982f7114bd8cd97d 100644 (file)
--- a/include/asm-sh/cacheflush.h
+++ b/include/asm-sh/cacheflush.h
@@ -43,21 +43,31 @@ extern void __flush_purge_region(void *start, int size);
 extern void __flush_invalidate_region(void *start, int size);
 #endif
 
-#define flush_cache_vmap(start, end)           flush_cache_all()
-#define flush_cache_vunmap(start, end)         flush_cache_all()
+#ifdef CONFIG_CPU_SH4
+extern void copy_to_user_page(struct vm_area_struct *vma,
+       struct page *page, unsigned long vaddr, void *dst, const void *src,
+       unsigned long len);
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+extern void copy_from_user_page(struct vm_area_struct *vma,
+       struct page *page, unsigned long vaddr, void *dst, const void *src,
+       unsigned long len);
+#else
+#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) \
+#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
+
+#define flush_cache_vmap(start, end)           flush_cache_all()
+#define flush_cache_vunmap(start, end)         flush_cache_all()
 
 #define HAVE_ARCH_UNMAPPED_AREA