aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/page.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/include/asm/page.h')
-rw-r--r--arch/arm/include/asm/page.h32
1 files changed, 19 insertions, 13 deletions
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
index bed1c0a00368..f341c9dbd662 100644
--- a/arch/arm/include/asm/page.h
+++ b/arch/arm/include/asm/page.h
@@ -108,32 +108,38 @@
108#error Unknown user operations model 108#error Unknown user operations model
109#endif 109#endif
110 110
111struct page;
112
111struct cpu_user_fns { 113struct cpu_user_fns {
112 void (*cpu_clear_user_page)(void *p, unsigned long user); 114 void (*cpu_clear_user_highpage)(struct page *page, unsigned long vaddr);
113 void (*cpu_copy_user_page)(void *to, const void *from, 115 void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
114 unsigned long user); 116 unsigned long vaddr);
115}; 117};
116 118
117#ifdef MULTI_USER 119#ifdef MULTI_USER
118extern struct cpu_user_fns cpu_user; 120extern struct cpu_user_fns cpu_user;
119 121
120#define __cpu_clear_user_page cpu_user.cpu_clear_user_page 122#define __cpu_clear_user_highpage cpu_user.cpu_clear_user_highpage
121#define __cpu_copy_user_page cpu_user.cpu_copy_user_page 123#define __cpu_copy_user_highpage cpu_user.cpu_copy_user_highpage
122 124
123#else 125#else
124 126
125#define __cpu_clear_user_page __glue(_USER,_clear_user_page) 127#define __cpu_clear_user_highpage __glue(_USER,_clear_user_highpage)
126#define __cpu_copy_user_page __glue(_USER,_copy_user_page) 128#define __cpu_copy_user_highpage __glue(_USER,_copy_user_highpage)
127 129
128extern void __cpu_clear_user_page(void *p, unsigned long user); 130extern void __cpu_clear_user_highpage(struct page *page, unsigned long vaddr);
129extern void __cpu_copy_user_page(void *to, const void *from, 131extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
130 unsigned long user); 132 unsigned long vaddr);
131#endif 133#endif
132 134
133#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) 135#define clear_user_highpage(page,vaddr) \
134#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr) 136 __cpu_clear_user_highpage(page, vaddr)
137
138#define __HAVE_ARCH_COPY_USER_HIGHPAGE
139#define copy_user_highpage(to,from,vaddr,vma) \
140 __cpu_copy_user_highpage(to, from, vaddr)
135 141
136#define clear_page(page) memzero((void *)(page), PAGE_SIZE) 142#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
137extern void copy_page(void *to, const void *from); 143extern void copy_page(void *to, const void *from);
138 144
139#undef STRICT_MM_TYPECHECKS 145#undef STRICT_MM_TYPECHECKS