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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
6d779079 GS |
2 | #ifndef _ASM_SH_HUGETLB_H |
3 | #define _ASM_SH_HUGETLB_H | |
4 | ||
5d3a551c | 5 | #include <asm/cacheflush.h> |
6d779079 | 6 | #include <asm/page.h> |
106c992a | 7 | #include <asm-generic/hugetlb.h> |
6d779079 GS |
8 | |
9 | ||
10 | static inline int is_hugepage_only_range(struct mm_struct *mm, | |
11 | unsigned long addr, | |
12 | unsigned long len) { | |
13 | return 0; | |
14 | } | |
15 | ||
16 | /* | |
17 | * If the arch doesn't supply something else, assume that hugepage | |
18 | * size aligned regions are ok without further preparation. | |
19 | */ | |
a5516438 AK |
20 | static inline int prepare_hugepage_range(struct file *file, |
21 | unsigned long addr, unsigned long len) | |
6d779079 GS |
22 | { |
23 | if (len & ~HPAGE_MASK) | |
24 | return -EINVAL; | |
25 | if (addr & ~HPAGE_MASK) | |
26 | return -EINVAL; | |
27 | return 0; | |
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 | ||
5d3a551c WD |
83 | static inline void arch_clear_hugepage_flags(struct page *page) |
84 | { | |
85 | clear_bit(PG_dcache_clean, &page->flags); | |
86 | } | |
87 | ||
6d779079 | 88 | #endif /* _ASM_SH_HUGETLB_H */ |