Commit | Line | Data |
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77ef50a5 VN |
1 | #ifndef ASM_X86__HUGETLB_H |
2 | #define ASM_X86__HUGETLB_H | |
6d779079 GS |
3 | |
4 | #include <asm/page.h> | |
5 | ||
6 | ||
7 | static inline int is_hugepage_only_range(struct mm_struct *mm, | |
8 | unsigned long addr, | |
9 | unsigned long len) { | |
10 | return 0; | |
11 | } | |
12 | ||
13 | /* | |
14 | * If the arch doesn't supply something else, assume that hugepage | |
15 | * size aligned regions are ok without further preparation. | |
16 | */ | |
a5516438 AK |
17 | static inline int prepare_hugepage_range(struct file *file, |
18 | unsigned long addr, unsigned long len) | |
6d779079 | 19 | { |
a5516438 AK |
20 | struct hstate *h = hstate_file(file); |
21 | if (len & ~huge_page_mask(h)) | |
6d779079 | 22 | return -EINVAL; |
a5516438 | 23 | if (addr & ~huge_page_mask(h)) |
6d779079 GS |
24 | return -EINVAL; |
25 | return 0; | |
26 | } | |
27 | ||
28 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { | |
29 | } | |
30 | ||
42b77728 | 31 | static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, |
6d779079 GS |
32 | unsigned long addr, unsigned long end, |
33 | unsigned long floor, | |
34 | unsigned long ceiling) | |
35 | { | |
36 | free_pgd_range(tlb, addr, end, floor, ceiling); | |
37 | } | |
38 | ||
39 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
40 | pte_t *ptep, pte_t pte) | |
41 | { | |
42 | set_pte_at(mm, addr, ptep, pte); | |
43 | } | |
44 | ||
45 | static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, | |
46 | unsigned long addr, pte_t *ptep) | |
47 | { | |
48 | return ptep_get_and_clear(mm, addr, ptep); | |
49 | } | |
50 | ||
8fe627ec GS |
51 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
52 | unsigned long addr, pte_t *ptep) | |
53 | { | |
54 | } | |
55 | ||
7f2e9525 GS |
56 | static inline int huge_pte_none(pte_t pte) |
57 | { | |
58 | return pte_none(pte); | |
59 | } | |
60 | ||
61 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
62 | { | |
63 | return pte_wrprotect(pte); | |
64 | } | |
65 | ||
66 | static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, | |
67 | unsigned long addr, pte_t *ptep) | |
68 | { | |
69 | ptep_set_wrprotect(mm, addr, ptep); | |
70 | } | |
71 | ||
72 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, | |
73 | unsigned long addr, pte_t *ptep, | |
74 | pte_t pte, int dirty) | |
75 | { | |
76 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); | |
77 | } | |
78 | ||
79 | static inline pte_t huge_ptep_get(pte_t *ptep) | |
80 | { | |
81 | return *ptep; | |
82 | } | |
83 | ||
84 | static inline int arch_prepare_hugepage(struct page *page) | |
85 | { | |
86 | return 0; | |
87 | } | |
88 | ||
89 | static inline void arch_release_hugepage(struct page *page) | |
90 | { | |
91 | } | |
92 | ||
77ef50a5 | 93 | #endif /* ASM_X86__HUGETLB_H */ |