page.h (59f0cb0fddc14ffc6676ae62e911f8115ebc8ccf) page.h (063b0a4207e43acbeff3d4b09f43e750e0212b48)
1/*
2 * arch/arm/include/asm/page.h
3 *
4 * Copyright (C) 1995-2003 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

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103#ifdef CONFIG_CPU_COPY_V6
104# define MULTI_USER 1
105#endif
106
107#if !defined(_USER) && !defined(MULTI_USER)
108#error Unknown user operations model
109#endif
110
1/*
2 * arch/arm/include/asm/page.h
3 *
4 * Copyright (C) 1995-2003 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.

--- 94 unchanged lines hidden (view full) ---

103#ifdef CONFIG_CPU_COPY_V6
104# define MULTI_USER 1
105#endif
106
107#if !defined(_USER) && !defined(MULTI_USER)
108#error Unknown user operations model
109#endif
110
111struct page;
112
111struct cpu_user_fns {
112 void (*cpu_clear_user_page)(void *p, unsigned long user);
113struct cpu_user_fns {
114 void (*cpu_clear_user_page)(void *p, unsigned long user);
113 void (*cpu_copy_user_page)(void *to, const void *from,
114 unsigned long user);
115 void (*cpu_copy_user_highpage)(struct page *to, struct page *from,
116 unsigned long vaddr);
115};
116
117#ifdef MULTI_USER
118extern struct cpu_user_fns cpu_user;
119
117};
118
119#ifdef MULTI_USER
120extern struct cpu_user_fns cpu_user;
121
120#define __cpu_clear_user_page cpu_user.cpu_clear_user_page
121#define __cpu_copy_user_page cpu_user.cpu_copy_user_page
122#define __cpu_clear_user_page cpu_user.cpu_clear_user_page
123#define __cpu_copy_user_highpage cpu_user.cpu_copy_user_highpage
122
123#else
124
124
125#else
126
125#define __cpu_clear_user_page __glue(_USER,_clear_user_page)
126#define __cpu_copy_user_page __glue(_USER,_copy_user_page)
127#define __cpu_clear_user_page __glue(_USER,_clear_user_page)
128#define __cpu_copy_user_highpage __glue(_USER,_copy_user_highpage)
127
128extern void __cpu_clear_user_page(void *p, unsigned long user);
129
130extern void __cpu_clear_user_page(void *p, unsigned long user);
129extern void __cpu_copy_user_page(void *to, const void *from,
130 unsigned long user);
131extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
132 unsigned long vaddr);
131#endif
132
133#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr)
133#endif
134
135#define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr)
134#define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr)
135
136
136#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
137#define __HAVE_ARCH_COPY_USER_HIGHPAGE
138#define copy_user_highpage(to,from,vaddr,vma) \
139 __cpu_copy_user_highpage(to, from, vaddr)
140
141#define clear_page(page) memzero((void *)(page), PAGE_SIZE)
137extern void copy_page(void *to, const void *from);
138
139#undef STRICT_MM_TYPECHECKS
140
141#ifdef STRICT_MM_TYPECHECKS
142/*
143 * These are used to make use of C type-checking..
144 */

--- 56 unchanged lines hidden --- 		142extern void copy_page(void *to, const void *from);
143
144#undef STRICT_MM_TYPECHECKS
145
146#ifdef STRICT_MM_TYPECHECKS
147/*
148 * These are used to make use of C type-checking..
149 */

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