diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 05:20:03 -0400 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/page_32.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/page_32.h')
-rw-r--r-- | include/asm-x86/page_32.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h new file mode 100644 index 000000000000..80ecc66b6d86 --- /dev/null +++ b/include/asm-x86/page_32.h | |||
@@ -0,0 +1,206 @@ | |||
1 | #ifndef _I386_PAGE_H | ||
2 | #define _I386_PAGE_H | ||
3 | |||
4 | /* PAGE_SHIFT determines the page size */ | ||
5 | #define PAGE_SHIFT 12 | ||
6 | #define PAGE_SIZE (1UL << PAGE_SHIFT) | ||
7 | #define PAGE_MASK (~(PAGE_SIZE-1)) | ||
8 | |||
9 | #define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1)) | ||
10 | #define LARGE_PAGE_SIZE (1UL << PMD_SHIFT) | ||
11 | |||
12 | #ifdef __KERNEL__ | ||
13 | #ifndef __ASSEMBLY__ | ||
14 | |||
15 | #ifdef CONFIG_X86_USE_3DNOW | ||
16 | |||
17 | #include <asm/mmx.h> | ||
18 | |||
19 | #define clear_page(page) mmx_clear_page((void *)(page)) | ||
20 | #define copy_page(to,from) mmx_copy_page(to,from) | ||
21 | |||
22 | #else | ||
23 | |||
24 | /* | ||
25 | * On older X86 processors it's not a win to use MMX here it seems. | ||
26 | * Maybe the K6-III ? | ||
27 | */ | ||
28 | |||
29 | #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) | ||
30 | #define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) | ||
31 | |||
32 | #endif | ||
33 | |||
34 | #define clear_user_page(page, vaddr, pg) clear_page(page) | ||
35 | #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) | ||
36 | |||
37 | #define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ | ||
38 | alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) | ||
39 | #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE | ||
40 | |||
41 | /* | ||
42 | * These are used to make use of C type-checking.. | ||
43 | */ | ||
44 | extern int nx_enabled; | ||
45 | |||
46 | #ifdef CONFIG_X86_PAE | ||
47 | typedef struct { unsigned long pte_low, pte_high; } pte_t; | ||
48 | typedef struct { unsigned long long pmd; } pmd_t; | ||
49 | typedef struct { unsigned long long pgd; } pgd_t; | ||
50 | typedef struct { unsigned long long pgprot; } pgprot_t; | ||
51 | |||
52 | static inline unsigned long long native_pgd_val(pgd_t pgd) | ||
53 | { | ||
54 | return pgd.pgd; | ||
55 | } | ||
56 | |||
57 | static inline unsigned long long native_pmd_val(pmd_t pmd) | ||
58 | { | ||
59 | return pmd.pmd; | ||
60 | } | ||
61 | |||
62 | static inline unsigned long long native_pte_val(pte_t pte) | ||
63 | { | ||
64 | return pte.pte_low | ((unsigned long long)pte.pte_high << 32); | ||
65 | } | ||
66 | |||
67 | static inline pgd_t native_make_pgd(unsigned long long val) | ||
68 | { | ||
69 | return (pgd_t) { val }; | ||
70 | } | ||
71 | |||
72 | static inline pmd_t native_make_pmd(unsigned long long val) | ||
73 | { | ||
74 | return (pmd_t) { val }; | ||
75 | } | ||
76 | |||
77 | static inline pte_t native_make_pte(unsigned long long val) | ||
78 | { | ||
79 | return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ; | ||
80 | } | ||
81 | |||
82 | #ifndef CONFIG_PARAVIRT | ||
83 | #define pmd_val(x) native_pmd_val(x) | ||
84 | #define __pmd(x) native_make_pmd(x) | ||
85 | #endif | ||
86 | |||
87 | #define HPAGE_SHIFT 21 | ||
88 | #include <asm-generic/pgtable-nopud.h> | ||
89 | #else /* !CONFIG_X86_PAE */ | ||
90 | typedef struct { unsigned long pte_low; } pte_t; | ||
91 | typedef struct { unsigned long pgd; } pgd_t; | ||
92 | typedef struct { unsigned long pgprot; } pgprot_t; | ||
93 | #define boot_pte_t pte_t /* or would you rather have a typedef */ | ||
94 | |||
95 | static inline unsigned long native_pgd_val(pgd_t pgd) | ||
96 | { | ||
97 | return pgd.pgd; | ||
98 | } | ||
99 | |||
100 | static inline unsigned long native_pte_val(pte_t pte) | ||
101 | { | ||
102 | return pte.pte_low; | ||
103 | } | ||
104 | |||
105 | static inline pgd_t native_make_pgd(unsigned long val) | ||
106 | { | ||
107 | return (pgd_t) { val }; | ||
108 | } | ||
109 | |||
110 | static inline pte_t native_make_pte(unsigned long val) | ||
111 | { | ||
112 | return (pte_t) { .pte_low = val }; | ||
113 | } | ||
114 | |||
115 | #define HPAGE_SHIFT 22 | ||
116 | #include <asm-generic/pgtable-nopmd.h> | ||
117 | #endif /* CONFIG_X86_PAE */ | ||
118 | |||
119 | #define PTE_MASK PAGE_MASK | ||
120 | |||
121 | #ifdef CONFIG_HUGETLB_PAGE | ||
122 | #define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) | ||
123 | #define HPAGE_MASK (~(HPAGE_SIZE - 1)) | ||
124 | #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) | ||
125 | #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA | ||
126 | #endif | ||
127 | |||
128 | #define pgprot_val(x) ((x).pgprot) | ||
129 | #define __pgprot(x) ((pgprot_t) { (x) } ) | ||
130 | |||
131 | #ifndef CONFIG_PARAVIRT | ||
132 | #define pgd_val(x) native_pgd_val(x) | ||
133 | #define __pgd(x) native_make_pgd(x) | ||
134 | #define pte_val(x) native_pte_val(x) | ||
135 | #define __pte(x) native_make_pte(x) | ||
136 | #endif | ||
137 | |||
138 | #endif /* !__ASSEMBLY__ */ | ||
139 | |||
140 | /* to align the pointer to the (next) page boundary */ | ||
141 | #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) | ||
142 | |||
143 | /* | ||
144 | * This handles the memory map.. We could make this a config | ||
145 | * option, but too many people screw it up, and too few need | ||
146 | * it. | ||
147 | * | ||
148 | * A __PAGE_OFFSET of 0xC0000000 means that the kernel has | ||
149 | * a virtual address space of one gigabyte, which limits the | ||
150 | * amount of physical memory you can use to about 950MB. | ||
151 | * | ||
152 | * If you want more physical memory than this then see the CONFIG_HIGHMEM4G | ||
153 | * and CONFIG_HIGHMEM64G options in the kernel configuration. | ||
154 | */ | ||
155 | |||
156 | #ifndef __ASSEMBLY__ | ||
157 | |||
158 | struct vm_area_struct; | ||
159 | |||
160 | /* | ||
161 | * This much address space is reserved for vmalloc() and iomap() | ||
162 | * as well as fixmap mappings. | ||
163 | */ | ||
164 | extern unsigned int __VMALLOC_RESERVE; | ||
165 | |||
166 | extern int sysctl_legacy_va_layout; | ||
167 | |||
168 | extern int page_is_ram(unsigned long pagenr); | ||
169 | |||
170 | #endif /* __ASSEMBLY__ */ | ||
171 | |||
172 | #ifdef __ASSEMBLY__ | ||
173 | #define __PAGE_OFFSET CONFIG_PAGE_OFFSET | ||
174 | #else | ||
175 | #define __PAGE_OFFSET ((unsigned long)CONFIG_PAGE_OFFSET) | ||
176 | #endif | ||
177 | |||
178 | |||
179 | #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) | ||
180 | #define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE) | ||
181 | #define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) | ||
182 | #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) | ||
183 | /* __pa_symbol should be used for C visible symbols. | ||
184 | This seems to be the official gcc blessed way to do such arithmetic. */ | ||
185 | #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x),0)) | ||
186 | #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) | ||
187 | #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) | ||
188 | #ifdef CONFIG_FLATMEM | ||
189 | #define pfn_valid(pfn) ((pfn) < max_mapnr) | ||
190 | #endif /* CONFIG_FLATMEM */ | ||
191 | #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) | ||
192 | |||
193 | #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) | ||
194 | |||
195 | #define VM_DATA_DEFAULT_FLAGS \ | ||
196 | (VM_READ | VM_WRITE | \ | ||
197 | ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ | ||
198 | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) | ||
199 | |||
200 | #include <asm-generic/memory_model.h> | ||
201 | #include <asm-generic/page.h> | ||
202 | |||
203 | #define __HAVE_ARCH_GATE_AREA 1 | ||
204 | #endif /* __KERNEL__ */ | ||
205 | |||
206 | #endif /* _I386_PAGE_H */ | ||