thermal: fix Mediatek thermal controller build
[linux/fpc-iii.git] / arch / x86 / include / asm / pgtable_64.h
blob2ee781114d3480fa1f1136f0e434b7862a361886
1 #ifndef _ASM_X86_PGTABLE_64_H
2 #define _ASM_X86_PGTABLE_64_H
4 #include <linux/const.h>
5 #include <asm/pgtable_64_types.h>
7 #ifndef __ASSEMBLY__
9 /*
10 * This file contains the functions and defines necessary to modify and use
11 * the x86-64 page table tree.
13 #include <asm/processor.h>
14 #include <linux/bitops.h>
15 #include <linux/threads.h>
17 extern pud_t level3_kernel_pgt[512];
18 extern pud_t level3_ident_pgt[512];
19 extern pmd_t level2_kernel_pgt[512];
20 extern pmd_t level2_fixmap_pgt[512];
21 extern pmd_t level2_ident_pgt[512];
22 extern pte_t level1_fixmap_pgt[512];
23 extern pgd_t init_level4_pgt[];
25 #define swapper_pg_dir init_level4_pgt
27 extern void paging_init(void);
29 #define pte_ERROR(e) \
30 pr_err("%s:%d: bad pte %p(%016lx)\n", \
31 __FILE__, __LINE__, &(e), pte_val(e))
32 #define pmd_ERROR(e) \
33 pr_err("%s:%d: bad pmd %p(%016lx)\n", \
34 __FILE__, __LINE__, &(e), pmd_val(e))
35 #define pud_ERROR(e) \
36 pr_err("%s:%d: bad pud %p(%016lx)\n", \
37 __FILE__, __LINE__, &(e), pud_val(e))
38 #define pgd_ERROR(e) \
39 pr_err("%s:%d: bad pgd %p(%016lx)\n", \
40 __FILE__, __LINE__, &(e), pgd_val(e))
42 struct mm_struct;
44 void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte);
47 static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
48 pte_t *ptep)
50 *ptep = native_make_pte(0);
53 static inline void native_set_pte(pte_t *ptep, pte_t pte)
55 *ptep = pte;
58 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
60 native_set_pte(ptep, pte);
63 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
65 *pmdp = pmd;
68 static inline void native_pmd_clear(pmd_t *pmd)
70 native_set_pmd(pmd, native_make_pmd(0));
73 static inline pte_t native_ptep_get_and_clear(pte_t *xp)
75 #ifdef CONFIG_SMP
76 return native_make_pte(xchg(&xp->pte, 0));
77 #else
78 /* native_local_ptep_get_and_clear,
79 but duplicated because of cyclic dependency */
80 pte_t ret = *xp;
81 native_pte_clear(NULL, 0, xp);
82 return ret;
83 #endif
86 static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
88 #ifdef CONFIG_SMP
89 return native_make_pmd(xchg(&xp->pmd, 0));
90 #else
91 /* native_local_pmdp_get_and_clear,
92 but duplicated because of cyclic dependency */
93 pmd_t ret = *xp;
94 native_pmd_clear(xp);
95 return ret;
96 #endif
99 static inline void native_set_pud(pud_t *pudp, pud_t pud)
101 *pudp = pud;
104 static inline void native_pud_clear(pud_t *pud)
106 native_set_pud(pud, native_make_pud(0));
109 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
111 *pgdp = pgd;
114 static inline void native_pgd_clear(pgd_t *pgd)
116 native_set_pgd(pgd, native_make_pgd(0));
119 extern void sync_global_pgds(unsigned long start, unsigned long end,
120 int removed);
123 * Conversion functions: convert a page and protection to a page entry,
124 * and a page entry and page directory to the page they refer to.
128 * Level 4 access.
130 static inline int pgd_large(pgd_t pgd) { return 0; }
131 #define mk_kernel_pgd(address) __pgd((address) | _KERNPG_TABLE)
133 /* PUD - Level3 access */
135 /* PMD - Level 2 access */
137 /* PTE - Level 1 access. */
139 /* x86-64 always has all page tables mapped. */
140 #define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
141 #define pte_unmap(pte) ((void)(pte))/* NOP */
143 /* Encode and de-code a swap entry */
144 #define SWP_TYPE_BITS 5
145 #define SWP_OFFSET_SHIFT (_PAGE_BIT_PROTNONE + 1)
147 #define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
149 #define __swp_type(x) (((x).val >> (_PAGE_BIT_PRESENT + 1)) \
150 & ((1U << SWP_TYPE_BITS) - 1))
151 #define __swp_offset(x) ((x).val >> SWP_OFFSET_SHIFT)
152 #define __swp_entry(type, offset) ((swp_entry_t) { \
153 ((type) << (_PAGE_BIT_PRESENT + 1)) \
154 | ((offset) << SWP_OFFSET_SHIFT) })
155 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val((pte)) })
156 #define __swp_entry_to_pte(x) ((pte_t) { .pte = (x).val })
158 extern int kern_addr_valid(unsigned long addr);
159 extern void cleanup_highmap(void);
161 #define HAVE_ARCH_UNMAPPED_AREA
162 #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
164 #define pgtable_cache_init() do { } while (0)
165 #define check_pgt_cache() do { } while (0)
167 #define PAGE_AGP PAGE_KERNEL_NOCACHE
168 #define HAVE_PAGE_AGP 1
170 /* fs/proc/kcore.c */
171 #define kc_vaddr_to_offset(v) ((v) & __VIRTUAL_MASK)
172 #define kc_offset_to_vaddr(o) ((o) | ~__VIRTUAL_MASK)
174 #define __HAVE_ARCH_PTE_SAME
176 #define vmemmap ((struct page *)VMEMMAP_START)
178 extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
179 extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
181 #endif /* !__ASSEMBLY__ */
183 #endif /* _ASM_X86_PGTABLE_64_H */