diff options
Diffstat (limited to 'include/asm-x86/pgalloc.h')
-rw-r--r-- | include/asm-x86/pgalloc.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h deleted file mode 100644 index 3cd23adedae8..000000000000 --- a/include/asm-x86/pgalloc.h +++ /dev/null | |||
@@ -1,114 +0,0 @@ | |||
1 | #ifndef ASM_X86__PGALLOC_H | ||
2 | #define ASM_X86__PGALLOC_H | ||
3 | |||
4 | #include <linux/threads.h> | ||
5 | #include <linux/mm.h> /* for struct page */ | ||
6 | #include <linux/pagemap.h> | ||
7 | |||
8 | static inline int __paravirt_pgd_alloc(struct mm_struct *mm) { return 0; } | ||
9 | |||
10 | #ifdef CONFIG_PARAVIRT | ||
11 | #include <asm/paravirt.h> | ||
12 | #else | ||
13 | #define paravirt_pgd_alloc(mm) __paravirt_pgd_alloc(mm) | ||
14 | static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd) {} | ||
15 | static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn) {} | ||
16 | static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn) {} | ||
17 | static inline void paravirt_alloc_pmd_clone(unsigned long pfn, unsigned long clonepfn, | ||
18 | unsigned long start, unsigned long count) {} | ||
19 | static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn) {} | ||
20 | static inline void paravirt_release_pte(unsigned long pfn) {} | ||
21 | static inline void paravirt_release_pmd(unsigned long pfn) {} | ||
22 | static inline void paravirt_release_pud(unsigned long pfn) {} | ||
23 | #endif | ||
24 | |||
25 | /* | ||
26 | * Allocate and free page tables. | ||
27 | */ | ||
28 | extern pgd_t *pgd_alloc(struct mm_struct *); | ||
29 | extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); | ||
30 | |||
31 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); | ||
32 | extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); | ||
33 | |||
34 | /* Should really implement gc for free page table pages. This could be | ||
35 | done with a reference count in struct page. */ | ||
36 | |||
37 | static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) | ||
38 | { | ||
39 | BUG_ON((unsigned long)pte & (PAGE_SIZE-1)); | ||
40 | free_page((unsigned long)pte); | ||
41 | } | ||
42 | |||
43 | static inline void pte_free(struct mm_struct *mm, struct page *pte) | ||
44 | { | ||
45 | __free_page(pte); | ||
46 | } | ||
47 | |||
48 | extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte); | ||
49 | |||
50 | static inline void pmd_populate_kernel(struct mm_struct *mm, | ||
51 | pmd_t *pmd, pte_t *pte) | ||
52 | { | ||
53 | paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); | ||
54 | set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); | ||
55 | } | ||
56 | |||
57 | static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, | ||
58 | struct page *pte) | ||
59 | { | ||
60 | unsigned long pfn = page_to_pfn(pte); | ||
61 | |||
62 | paravirt_alloc_pte(mm, pfn); | ||
63 | set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE)); | ||
64 | } | ||
65 | |||
66 | #define pmd_pgtable(pmd) pmd_page(pmd) | ||
67 | |||
68 | #if PAGETABLE_LEVELS > 2 | ||
69 | static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) | ||
70 | { | ||
71 | return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); | ||
72 | } | ||
73 | |||
74 | static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) | ||
75 | { | ||
76 | BUG_ON((unsigned long)pmd & (PAGE_SIZE-1)); | ||
77 | free_page((unsigned long)pmd); | ||
78 | } | ||
79 | |||
80 | extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd); | ||
81 | |||
82 | #ifdef CONFIG_X86_PAE | ||
83 | extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); | ||
84 | #else /* !CONFIG_X86_PAE */ | ||
85 | static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) | ||
86 | { | ||
87 | paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT); | ||
88 | set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd))); | ||
89 | } | ||
90 | #endif /* CONFIG_X86_PAE */ | ||
91 | |||
92 | #if PAGETABLE_LEVELS > 3 | ||
93 | static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) | ||
94 | { | ||
95 | paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT); | ||
96 | set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud))); | ||
97 | } | ||
98 | |||
99 | static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) | ||
100 | { | ||
101 | return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); | ||
102 | } | ||
103 | |||
104 | static inline void pud_free(struct mm_struct *mm, pud_t *pud) | ||
105 | { | ||
106 | BUG_ON((unsigned long)pud & (PAGE_SIZE-1)); | ||
107 | free_page((unsigned long)pud); | ||
108 | } | ||
109 | |||
110 | extern void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud); | ||
111 | #endif /* PAGETABLE_LEVELS > 3 */ | ||
112 | #endif /* PAGETABLE_LEVELS > 2 */ | ||
113 | |||
114 | #endif /* ASM_X86__PGALLOC_H */ | ||