diff options
author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-01-30 07:32:55 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:32:55 -0500 |
commit | 6c3866558213ff706d8331053386915371ad63ec (patch) | |
tree | 7c7d4b56c0544abbc2256f078d71a78d3ebfb84d /include/asm-x86/pgtable_32.h | |
parent | 82bc03fc158e28c90d7ed9919410776039cb4e14 (diff) |
x86: move all asm/pgtable constants into one place
32 and 64-bit use the same flags for pagetable entries, so make them all common.
[ mingo@elte.hu: fixes ]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/pgtable_32.h')
-rw-r--r-- | include/asm-x86/pgtable_32.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 16da5d5cce40..3b40cb6dea18 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h | |||
@@ -58,9 +58,6 @@ void paging_init(void); | |||
58 | #define PGDIR_SIZE (1UL << PGDIR_SHIFT) | 58 | #define PGDIR_SIZE (1UL << PGDIR_SHIFT) |
59 | #define PGDIR_MASK (~(PGDIR_SIZE-1)) | 59 | #define PGDIR_MASK (~(PGDIR_SIZE-1)) |
60 | 60 | ||
61 | #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) | ||
62 | #define FIRST_USER_ADDRESS 0 | ||
63 | |||
64 | #define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT) | 61 | #define USER_PGD_PTRS (PAGE_OFFSET >> PGDIR_SHIFT) |
65 | #define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS) | 62 | #define KERNEL_PGD_PTRS (PTRS_PER_PGD-USER_PGD_PTRS) |
66 | 63 | ||
@@ -85,113 +82,6 @@ void paging_init(void); | |||
85 | #endif | 82 | #endif |
86 | 83 | ||
87 | /* | 84 | /* |
88 | * _PAGE_PSE set in the page directory entry just means that | ||
89 | * the page directory entry points directly to a 4MB-aligned block of | ||
90 | * memory. | ||
91 | */ | ||
92 | #define _PAGE_BIT_PRESENT 0 | ||
93 | #define _PAGE_BIT_RW 1 | ||
94 | #define _PAGE_BIT_USER 2 | ||
95 | #define _PAGE_BIT_PWT 3 | ||
96 | #define _PAGE_BIT_PCD 4 | ||
97 | #define _PAGE_BIT_ACCESSED 5 | ||
98 | #define _PAGE_BIT_DIRTY 6 | ||
99 | #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page, Pentium+, if present.. */ | ||
100 | #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ | ||
101 | #define _PAGE_BIT_UNUSED1 9 /* available for programmer */ | ||
102 | #define _PAGE_BIT_UNUSED2 10 | ||
103 | #define _PAGE_BIT_UNUSED3 11 | ||
104 | #define _PAGE_BIT_NX 63 | ||
105 | |||
106 | #define _PAGE_PRESENT 0x001 | ||
107 | #define _PAGE_RW 0x002 | ||
108 | #define _PAGE_USER 0x004 | ||
109 | #define _PAGE_PWT 0x008 | ||
110 | #define _PAGE_PCD 0x010 | ||
111 | #define _PAGE_ACCESSED 0x020 | ||
112 | #define _PAGE_DIRTY 0x040 | ||
113 | #define _PAGE_PSE 0x080 /* 4 MB (or 2MB) page, Pentium+, if present.. */ | ||
114 | #define _PAGE_GLOBAL 0x100 /* Global TLB entry PPro+ */ | ||
115 | #define _PAGE_UNUSED1 0x200 /* available for programmer */ | ||
116 | #define _PAGE_UNUSED2 0x400 | ||
117 | #define _PAGE_UNUSED3 0x800 | ||
118 | |||
119 | /* If _PAGE_PRESENT is clear, we use these: */ | ||
120 | #define _PAGE_FILE 0x040 /* nonlinear file mapping, saved PTE; unset:swap */ | ||
121 | #define _PAGE_PROTNONE 0x080 /* if the user mapped it with PROT_NONE; | ||
122 | pte_present gives true */ | ||
123 | #ifdef CONFIG_X86_PAE | ||
124 | #define _PAGE_NX (1ULL<<_PAGE_BIT_NX) | ||
125 | #else | ||
126 | #define _PAGE_NX 0 | ||
127 | #endif | ||
128 | |||
129 | #define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) | ||
130 | #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) | ||
131 | #define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) | ||
132 | |||
133 | #define PAGE_NONE \ | ||
134 | __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED) | ||
135 | #define PAGE_SHARED \ | ||
136 | __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED) | ||
137 | |||
138 | #define PAGE_SHARED_EXEC \ | ||
139 | __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED) | ||
140 | #define PAGE_COPY_NOEXEC \ | ||
141 | __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX) | ||
142 | #define PAGE_COPY_EXEC \ | ||
143 | __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) | ||
144 | #define PAGE_COPY \ | ||
145 | PAGE_COPY_NOEXEC | ||
146 | #define PAGE_READONLY \ | ||
147 | __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_NX) | ||
148 | #define PAGE_READONLY_EXEC \ | ||
149 | __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) | ||
150 | |||
151 | #define _PAGE_KERNEL \ | ||
152 | (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_NX) | ||
153 | #define _PAGE_KERNEL_EXEC \ | ||
154 | (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) | ||
155 | |||
156 | extern unsigned long long __PAGE_KERNEL, __PAGE_KERNEL_EXEC; | ||
157 | #define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW) | ||
158 | #define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW) | ||
159 | #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) | ||
160 | #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) | ||
161 | #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) | ||
162 | |||
163 | #define PAGE_KERNEL __pgprot(__PAGE_KERNEL) | ||
164 | #define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO) | ||
165 | #define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC) | ||
166 | #define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX) | ||
167 | #define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE) | ||
168 | #define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE) | ||
169 | #define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC) | ||
170 | |||
171 | /* | ||
172 | * The i386 can't do page protection for execute, and considers that | ||
173 | * the same are read. Also, write permissions imply read permissions. | ||
174 | * This is the closest we can get.. | ||
175 | */ | ||
176 | #define __P000 PAGE_NONE | ||
177 | #define __P001 PAGE_READONLY | ||
178 | #define __P010 PAGE_COPY | ||
179 | #define __P011 PAGE_COPY | ||
180 | #define __P100 PAGE_READONLY_EXEC | ||
181 | #define __P101 PAGE_READONLY_EXEC | ||
182 | #define __P110 PAGE_COPY_EXEC | ||
183 | #define __P111 PAGE_COPY_EXEC | ||
184 | |||
185 | #define __S000 PAGE_NONE | ||
186 | #define __S001 PAGE_READONLY | ||
187 | #define __S010 PAGE_SHARED | ||
188 | #define __S011 PAGE_SHARED | ||
189 | #define __S100 PAGE_READONLY_EXEC | ||
190 | #define __S101 PAGE_READONLY_EXEC | ||
191 | #define __S110 PAGE_SHARED_EXEC | ||
192 | #define __S111 PAGE_SHARED_EXEC | ||
193 | |||
194 | /* | ||
195 | * Define this if things work differently on an i386 and an i486: | 85 | * Define this if things work differently on an i386 and an i486: |
196 | * it will (on an i486) warn about kernel memory accesses that are | 86 | * it will (on an i486) warn about kernel memory accesses that are |
197 | * done without a 'access_ok(VERIFY_WRITE,..)' | 87 | * done without a 'access_ok(VERIFY_WRITE,..)' |