sh: Centralize the CPU cache initialization routines.

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

diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 4c5462d..e37654f 100644 (file)
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -1,6 +1,8 @@
 #ifndef __ASM_SH_CACHEFLUSH_H
 #define __ASM_SH_CACHEFLUSH_H
 
+#include <linux/mm.h>
+
 #ifdef __KERNEL__
 
 #ifdef CONFIG_CACHE_OFF
@@ -10,7 +12,6 @@
  *
  * See arch/sh/kernel/cpu/init.c:cache_init().
  */
-#define p3_cache_init()                                do { } while (0)
 #define flush_cache_all()                      do { } while (0)
 #define flush_cache_mm(mm)                     do { } while (0)
 #define flush_cache_dup_mm(mm)                 do { } while (0)
@@ -43,13 +44,22 @@ extern void __flush_purge_region(void *start, int size);
 extern void __flush_invalidate_region(void *start, int size);
 #endif
 
+#define ARCH_HAS_FLUSH_ANON_PAGE
+extern void __flush_anon_page(struct page *page, unsigned long);
+
+static inline void flush_anon_page(struct vm_area_struct *vma,
+                                  struct page *page, unsigned long vmaddr)
+{
+       if (boot_cpu_data.dcache.n_aliases && PageAnon(page))
+               __flush_anon_page(page, vmaddr);
+}
+
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 static inline void flush_kernel_dcache_page(struct page *page)
 {
        flush_dcache_page(page);
 }
 
-#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)
 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);
@@ -57,23 +67,17 @@ extern void copy_to_user_page(struct vm_area_struct *vma,
 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)   \
-       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()
 
+void kmap_coherent_init(void);
+void *kmap_coherent(struct page *page, unsigned long addr);
+void kunmap_coherent(void);
+
+#define PG_dcache_dirty        PG_arch_1
+
+void cpu_cache_init(void);
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_SH_CACHEFLUSH_H */