diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-02 05:55:55 -0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-02 16:32:35 -0400 |
commit | 4baa9922430662431231ac637adedddbb0cfb2d7 (patch) | |
tree | e8fb765ce3e41c01f33de34a0bc9494f0ae19818 /arch/arm/include/asm/page.h | |
parent | ff4db0a043a5dee7180bdffd178e61cd02812c68 (diff) |
[ARM] move include/asm-arm to arch/arm/include/asm
Move platform independent header files to arch/arm/include/asm, leaving
those in asm/arch* and asm/plat* alone.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/page.h')
-rw-r--r-- | arch/arm/include/asm/page.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h new file mode 100644 index 000000000000..cf2e2680daaa --- /dev/null +++ b/arch/arm/include/asm/page.h | |||
@@ -0,0 +1,199 @@ | |||
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. | ||
9 | */ | ||
10 | #ifndef _ASMARM_PAGE_H | ||
11 | #define _ASMARM_PAGE_H | ||
12 | |||
13 | /* PAGE_SHIFT determines the page size */ | ||
14 | #define PAGE_SHIFT 12 | ||
15 | #define PAGE_SIZE (1UL << PAGE_SHIFT) | ||
16 | #define PAGE_MASK (~(PAGE_SIZE-1)) | ||
17 | |||
18 | #ifndef __ASSEMBLY__ | ||
19 | |||
20 | #ifndef CONFIG_MMU | ||
21 | |||
22 | #include "page-nommu.h" | ||
23 | |||
24 | #else | ||
25 | |||
26 | #include <asm/glue.h> | ||
27 | |||
28 | /* | ||
29 | * User Space Model | ||
30 | * ================ | ||
31 | * | ||
32 | * This section selects the correct set of functions for dealing with | ||
33 | * page-based copying and clearing for user space for the particular | ||
34 | * processor(s) we're building for. | ||
35 | * | ||
36 | * We have the following to choose from: | ||
37 | * v3 - ARMv3 | ||
38 | * v4wt - ARMv4 with writethrough cache, without minicache | ||
39 | * v4wb - ARMv4 with writeback cache, without minicache | ||
40 | * v4_mc - ARMv4 with minicache | ||
41 | * xscale - Xscale | ||
42 | * xsc3 - XScalev3 | ||
43 | */ | ||
44 | #undef _USER | ||
45 | #undef MULTI_USER | ||
46 | |||
47 | #ifdef CONFIG_CPU_COPY_V3 | ||
48 | # ifdef _USER | ||
49 | # define MULTI_USER 1 | ||
50 | # else | ||
51 | # define _USER v3 | ||
52 | # endif | ||
53 | #endif | ||
54 | |||
55 | #ifdef CONFIG_CPU_COPY_V4WT | ||
56 | # ifdef _USER | ||
57 | # define MULTI_USER 1 | ||
58 | # else | ||
59 | # define _USER v4wt | ||
60 | # endif | ||
61 | #endif | ||
62 | |||
63 | #ifdef CONFIG_CPU_COPY_V4WB | ||
64 | # ifdef _USER | ||
65 | # define MULTI_USER 1 | ||
66 | # else | ||
67 | # define _USER v4wb | ||
68 | # endif | ||
69 | #endif | ||
70 | |||
71 | #ifdef CONFIG_CPU_COPY_FEROCEON | ||
72 | # ifdef _USER | ||
73 | # define MULTI_USER 1 | ||
74 | # else | ||
75 | # define _USER feroceon | ||
76 | # endif | ||
77 | #endif | ||
78 | |||
79 | #ifdef CONFIG_CPU_SA1100 | ||
80 | # ifdef _USER | ||
81 | # define MULTI_USER 1 | ||
82 | # else | ||
83 | # define _USER v4_mc | ||
84 | # endif | ||
85 | #endif | ||
86 | |||
87 | #ifdef CONFIG_CPU_XSCALE | ||
88 | # ifdef _USER | ||
89 | # define MULTI_USER 1 | ||
90 | # else | ||
91 | # define _USER xscale_mc | ||
92 | # endif | ||
93 | #endif | ||
94 | |||
95 | #ifdef CONFIG_CPU_XSC3 | ||
96 | # ifdef _USER | ||
97 | # define MULTI_USER 1 | ||
98 | # else | ||
99 | # define _USER xsc3_mc | ||
100 | # endif | ||
101 | #endif | ||
102 | |||
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 | |||
111 | struct cpu_user_fns { | ||
112 | 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 | }; | ||
116 | |||
117 | #ifdef MULTI_USER | ||
118 | extern struct cpu_user_fns cpu_user; | ||
119 | |||
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 | |||
123 | #else | ||
124 | |||
125 | #define __cpu_clear_user_page __glue(_USER,_clear_user_page) | ||
126 | #define __cpu_copy_user_page __glue(_USER,_copy_user_page) | ||
127 | |||
128 | extern void __cpu_clear_user_page(void *p, unsigned long user); | ||
129 | extern void __cpu_copy_user_page(void *to, const void *from, | ||
130 | unsigned long user); | ||
131 | #endif | ||
132 | |||
133 | #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 | #define clear_page(page) memzero((void *)(page), PAGE_SIZE) | ||
137 | extern 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 | */ | ||
145 | typedef struct { unsigned long pte; } pte_t; | ||
146 | typedef struct { unsigned long pmd; } pmd_t; | ||
147 | typedef struct { unsigned long pgd[2]; } pgd_t; | ||
148 | typedef struct { unsigned long pgprot; } pgprot_t; | ||
149 | |||
150 | #define pte_val(x) ((x).pte) | ||
151 | #define pmd_val(x) ((x).pmd) | ||
152 | #define pgd_val(x) ((x).pgd[0]) | ||
153 | #define pgprot_val(x) ((x).pgprot) | ||
154 | |||
155 | #define __pte(x) ((pte_t) { (x) } ) | ||
156 | #define __pmd(x) ((pmd_t) { (x) } ) | ||
157 | #define __pgprot(x) ((pgprot_t) { (x) } ) | ||
158 | |||
159 | #else | ||
160 | /* | ||
161 | * .. while these make it easier on the compiler | ||
162 | */ | ||
163 | typedef unsigned long pte_t; | ||
164 | typedef unsigned long pmd_t; | ||
165 | typedef unsigned long pgd_t[2]; | ||
166 | typedef unsigned long pgprot_t; | ||
167 | |||
168 | #define pte_val(x) (x) | ||
169 | #define pmd_val(x) (x) | ||
170 | #define pgd_val(x) ((x)[0]) | ||
171 | #define pgprot_val(x) (x) | ||
172 | |||
173 | #define __pte(x) (x) | ||
174 | #define __pmd(x) (x) | ||
175 | #define __pgprot(x) (x) | ||
176 | |||
177 | #endif /* STRICT_MM_TYPECHECKS */ | ||
178 | |||
179 | #endif /* CONFIG_MMU */ | ||
180 | |||
181 | typedef struct page *pgtable_t; | ||
182 | |||
183 | #include <asm/memory.h> | ||
184 | |||
185 | #endif /* !__ASSEMBLY__ */ | ||
186 | |||
187 | #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ | ||
188 | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) | ||
189 | |||
190 | /* | ||
191 | * With EABI on ARMv5 and above we must have 64-bit aligned slab pointers. | ||
192 | */ | ||
193 | #if defined(CONFIG_AEABI) && (__LINUX_ARM_ARCH__ >= 5) | ||
194 | #define ARCH_SLAB_MINALIGN 8 | ||
195 | #endif | ||
196 | |||
197 | #include <asm-generic/page.h> | ||
198 | |||
199 | #endif | ||