Commit | Line | Data |
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1965aae3 PA |
1 | #ifndef _ASM_X86_HUGETLB_H |
2 | #define _ASM_X86_HUGETLB_H | |
6d779079 GS |
3 | |
4 | #include <asm/page.h> | |
106c992a | 5 | #include <asm-generic/hugetlb.h> |
6d779079 | 6 | |
0679df0f | 7 | #define hugepages_supported() cpu_has_pse |
6d779079 GS |
8 | |
9 | static inline int is_hugepage_only_range(struct mm_struct *mm, | |
10 | unsigned long addr, | |
11 | unsigned long len) { | |
12 | return 0; | |
13 | } | |
14 | ||
15 | /* | |
16 | * If the arch doesn't supply something else, assume that hugepage | |
17 | * size aligned regions are ok without further preparation. | |
18 | */ | |
a5516438 AK |
19 | static inline int prepare_hugepage_range(struct file *file, |
20 | unsigned long addr, unsigned long len) | |
6d779079 | 21 | { |
a5516438 AK |
22 | struct hstate *h = hstate_file(file); |
23 | if (len & ~huge_page_mask(h)) | |
6d779079 | 24 | return -EINVAL; |
a5516438 | 25 | if (addr & ~huge_page_mask(h)) |
6d779079 GS |
26 | return -EINVAL; |
27 | return 0; | |
28 | } | |
29 | ||
30 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { | |
31 | } | |
32 | ||
42b77728 | 33 | static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, |
6d779079 GS |
34 | unsigned long addr, unsigned long end, |
35 | unsigned long floor, | |
36 | unsigned long ceiling) | |
37 | { | |
38 | free_pgd_range(tlb, addr, end, floor, ceiling); | |
39 | } | |
40 | ||
41 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
42 | pte_t *ptep, pte_t pte) | |
43 | { | |
44 | set_pte_at(mm, addr, ptep, pte); | |
45 | } | |
46 | ||
47 | static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, | |
48 | unsigned long addr, pte_t *ptep) | |
49 | { | |
50 | return ptep_get_and_clear(mm, addr, ptep); | |
51 | } | |
52 | ||
8fe627ec GS |
53 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
54 | unsigned long addr, pte_t *ptep) | |
55 | { | |
4d5f1738 | 56 | ptep_clear_flush(vma, addr, ptep); |
8fe627ec GS |
57 | } |
58 | ||
7f2e9525 GS |
59 | static inline int huge_pte_none(pte_t pte) |
60 | { | |
61 | return pte_none(pte); | |
62 | } | |
63 | ||
64 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
65 | { | |
66 | return pte_wrprotect(pte); | |
67 | } | |
68 | ||
69 | static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, | |
70 | unsigned long addr, pte_t *ptep) | |
71 | { | |
72 | ptep_set_wrprotect(mm, addr, ptep); | |
73 | } | |
74 | ||
75 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, | |
76 | unsigned long addr, pte_t *ptep, | |
77 | pte_t pte, int dirty) | |
78 | { | |
79 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); | |
80 | } | |
81 | ||
82 | static inline pte_t huge_ptep_get(pte_t *ptep) | |
83 | { | |
84 | return *ptep; | |
85 | } | |
86 | ||
87 | static inline int arch_prepare_hugepage(struct page *page) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | ||
92 | static inline void arch_release_hugepage(struct page *page) | |
93 | { | |
94 | } | |
95 | ||
5d3a551c WD |
96 | static inline void arch_clear_hugepage_flags(struct page *page) |
97 | { | |
98 | } | |
99 | ||
1965aae3 | 100 | #endif /* _ASM_X86_HUGETLB_H */ |