Commit | Line | Data |
---|---|---|
6d779079 GS |
1 | #ifndef _ASM_SH_HUGETLB_H |
2 | #define _ASM_SH_HUGETLB_H | |
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 GS |
19 | { |
20 | if (len & ~HPAGE_MASK) | |
21 | return -EINVAL; | |
22 | if (addr & ~HPAGE_MASK) | |
23 | return -EINVAL; | |
24 | return 0; | |
25 | } | |
26 | ||
27 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { | |
28 | } | |
29 | ||
42b77728 | 30 | static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, |
6d779079 GS |
31 | unsigned long addr, unsigned long end, |
32 | unsigned long floor, | |
33 | unsigned long ceiling) | |
34 | { | |
35 | free_pgd_range(tlb, addr, end, floor, ceiling); | |
36 | } | |
37 | ||
38 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
39 | pte_t *ptep, pte_t pte) | |
40 | { | |
41 | set_pte_at(mm, addr, ptep, pte); | |
42 | } | |
43 | ||
44 | static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, | |
45 | unsigned long addr, pte_t *ptep) | |
46 | { | |
47 | return ptep_get_and_clear(mm, addr, ptep); | |
48 | } | |
49 | ||
8fe627ec GS |
50 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
51 | unsigned long addr, pte_t *ptep) | |
52 | { | |
53 | } | |
54 | ||
7f2e9525 GS |
55 | static inline int huge_pte_none(pte_t pte) |
56 | { | |
57 | return pte_none(pte); | |
58 | } | |
59 | ||
60 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
61 | { | |
62 | return pte_wrprotect(pte); | |
63 | } | |
64 | ||
65 | static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, | |
66 | unsigned long addr, pte_t *ptep) | |
67 | { | |
68 | ptep_set_wrprotect(mm, addr, ptep); | |
69 | } | |
70 | ||
71 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, | |
72 | unsigned long addr, pte_t *ptep, | |
73 | pte_t pte, int dirty) | |
74 | { | |
75 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); | |
76 | } | |
77 | ||
78 | static inline pte_t huge_ptep_get(pte_t *ptep) | |
79 | { | |
80 | return *ptep; | |
81 | } | |
82 | ||
83 | static inline int arch_prepare_hugepage(struct page *page) | |
84 | { | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static inline void arch_release_hugepage(struct page *page) | |
89 | { | |
90 | } | |
91 | ||
6d779079 | 92 | #endif /* _ASM_SH_HUGETLB_H */ |