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-rw-r--r--include/asm-mips/page.h191
1 files changed, 0 insertions, 191 deletions
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
deleted file mode 100644
index fe7a88ea066e..000000000000
--- a/include/asm-mips/page.h
+++ /dev/null
@@ -1,191 +0,0 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1994 - 1999, 2000, 03 Ralf Baechle
7 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8 */
9#ifndef _ASM_PAGE_H
10#define _ASM_PAGE_H
11
12#include <spaces.h>
13
14/*
15 * PAGE_SHIFT determines the page size
16 */
17#ifdef CONFIG_PAGE_SIZE_4KB
18#define PAGE_SHIFT 12
19#endif
20#ifdef CONFIG_PAGE_SIZE_8KB
21#define PAGE_SHIFT 13
22#endif
23#ifdef CONFIG_PAGE_SIZE_16KB
24#define PAGE_SHIFT 14
25#endif
26#ifdef CONFIG_PAGE_SIZE_64KB
27#define PAGE_SHIFT 16
28#endif
29#define PAGE_SIZE (1UL << PAGE_SHIFT)
30#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1))
31
32#ifndef __ASSEMBLY__
33
34#include <linux/pfn.h>
35#include <asm/io.h>
36
37extern void build_clear_page(void);
38extern void build_copy_page(void);
39
40/*
41 * It's normally defined only for FLATMEM config but it's
42 * used in our early mem init code for all memory models.
43 * So always define it.
44 */
45#define ARCH_PFN_OFFSET PFN_UP(PHYS_OFFSET)
46
47extern void clear_page(void * page);
48extern void copy_page(void * to, void * from);
49
50extern unsigned long shm_align_mask;
51
52static inline unsigned long pages_do_alias(unsigned long addr1,
53 unsigned long addr2)
54{
55 return (addr1 ^ addr2) & shm_align_mask;
56}
57
58struct page;
59
60static inline void clear_user_page(void *addr, unsigned long vaddr,
61 struct page *page)
62{
63 extern void (*flush_data_cache_page)(unsigned long addr);
64
65 clear_page(addr);
66 if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK))
67 flush_data_cache_page((unsigned long)addr);
68}
69
70extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
71 struct page *to);
72struct vm_area_struct;
73extern void copy_user_highpage(struct page *to, struct page *from,
74 unsigned long vaddr, struct vm_area_struct *vma);
75
76#define __HAVE_ARCH_COPY_USER_HIGHPAGE
77
78/*
79 * These are used to make use of C type-checking..
80 */
81#ifdef CONFIG_64BIT_PHYS_ADDR
82 #ifdef CONFIG_CPU_MIPS32
83 typedef struct { unsigned long pte_low, pte_high; } pte_t;
84 #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32))
85 #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; })
86 #else
87 typedef struct { unsigned long long pte; } pte_t;
88 #define pte_val(x) ((x).pte)
89 #define __pte(x) ((pte_t) { (x) } )
90 #endif
91#else
92typedef struct { unsigned long pte; } pte_t;
93#define pte_val(x) ((x).pte)
94#define __pte(x) ((pte_t) { (x) } )
95#endif
96typedef struct page *pgtable_t;
97
98/*
99 * For 3-level pagetables we defines these ourselves, for 2-level the
100 * definitions are supplied by <asm-generic/pgtable-nopmd.h>.
101 */
102#ifdef CONFIG_64BIT
103
104typedef struct { unsigned long pmd; } pmd_t;
105#define pmd_val(x) ((x).pmd)
106#define __pmd(x) ((pmd_t) { (x) } )
107
108#endif
109
110/*
111 * Right now we don't support 4-level pagetables, so all pud-related
112 * definitions come from <asm-generic/pgtable-nopud.h>.
113 */
114
115/*
116 * Finall the top of the hierarchy, the pgd
117 */
118typedef struct { unsigned long pgd; } pgd_t;
119#define pgd_val(x) ((x).pgd)
120#define __pgd(x) ((pgd_t) { (x) } )
121
122/*
123 * Manipulate page protection bits
124 */
125typedef struct { unsigned long pgprot; } pgprot_t;
126#define pgprot_val(x) ((x).pgprot)
127#define __pgprot(x) ((pgprot_t) { (x) } )
128
129/*
130 * On R4000-style MMUs where a TLB entry is mapping a adjacent even / odd
131 * pair of pages we only have a single global bit per pair of pages. When
132 * writing to the TLB make sure we always have the bit set for both pages
133 * or none. This macro is used to access the `buddy' of the pte we're just
134 * working on.
135 */
136#define ptep_buddy(x) ((pte_t *)((unsigned long)(x) ^ sizeof(pte_t)))
137
138#endif /* !__ASSEMBLY__ */
139
140/*
141 * __pa()/__va() should be used only during mem init.
142 */
143#ifdef CONFIG_64BIT
144#define __pa(x) \
145({ \
146 unsigned long __x = (unsigned long)(x); \
147 __x < CKSEG0 ? XPHYSADDR(__x) : CPHYSADDR(__x); \
148})
149#else
150#define __pa(x) \
151 ((unsigned long)(x) - PAGE_OFFSET + PHYS_OFFSET)
152#endif
153#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET - PHYS_OFFSET))
154#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
155
156#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
157
158#ifdef CONFIG_FLATMEM
159
160#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr)
161
162#elif defined(CONFIG_SPARSEMEM)
163
164/* pfn_valid is defined in linux/mmzone.h */
165
166#elif defined(CONFIG_NEED_MULTIPLE_NODES)
167
168#define pfn_valid(pfn) \
169({ \
170 unsigned long __pfn = (pfn); \
171 int __n = pfn_to_nid(__pfn); \
172 ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \
173 NODE_DATA(__n)->node_spanned_pages) \
174 : 0); \
175})
176
177#endif
178
179#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))
180#define virt_addr_valid(kaddr) pfn_valid(PFN_DOWN(virt_to_phys(kaddr)))
181
182#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
183 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
184
185#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE)
186#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET)
187
188#include <asm-generic/memory_model.h>
189#include <asm-generic/page.h>
190
191#endif /* _ASM_PAGE_H */
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