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Diffstat (limited to 'arch/sh/include/asm/page.h')
-rw-r--r--arch/sh/include/asm/page.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index a31ab40040f0..5208b7bfc24e 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -56,21 +56,25 @@ pages_do_alias(unsigned long addr1, unsigned long addr2)
56 return (addr1 ^ addr2) & shm_align_mask; 56 return (addr1 ^ addr2) & shm_align_mask;
57} 57}
58 58
59extern void clear_page(void *to); 59
60#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
60extern void copy_page(void *to, void *from); 61extern void copy_page(void *to, void *from);
61 62
63struct page;
64struct vm_area_struct;
65
62#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \ 66#if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \
63 (defined(CONFIG_CPU_SH5) || defined(CONFIG_CPU_SH4) || \ 67 (defined(CONFIG_CPU_SH5) || defined(CONFIG_CPU_SH4) || \
64 defined(CONFIG_SH7705_CACHE_32KB)) 68 defined(CONFIG_SH7705_CACHE_32KB))
65struct page;
66struct vm_area_struct;
67extern void clear_user_page(void *to, unsigned long address, struct page *page); 69extern void clear_user_page(void *to, unsigned long address, struct page *page);
68extern void copy_user_page(void *to, void *from, unsigned long address, 70extern void copy_user_page(void *to, void *from, unsigned long address,
69 struct page *page); 71 struct page *page);
70#if defined(CONFIG_CPU_SH4) 72#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)
71extern void copy_user_highpage(struct page *to, struct page *from, 73extern void copy_user_highpage(struct page *to, struct page *from,
72 unsigned long vaddr, struct vm_area_struct *vma); 74 unsigned long vaddr, struct vm_area_struct *vma);
73#define __HAVE_ARCH_COPY_USER_HIGHPAGE 75#define __HAVE_ARCH_COPY_USER_HIGHPAGE
76extern void clear_user_highpage(struct page *page, unsigned long vaddr);
77#define clear_user_highpage clear_user_highpage
74#endif 78#endif
75#else 79#else
76#define clear_user_page(page, vaddr, pg) clear_page(page) 80#define clear_user_page(page, vaddr, pg) clear_page(page)