1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_HUGETLB_H
3 #define _ASM_GENERIC_HUGETLB_H
4
5 #include <linux/swap.h>
6 #include <linux/swapops.h>
7
mk_huge_pte(struct page * page,pgprot_t pgprot)8 static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot)
9 {
10 return mk_pte(page, pgprot);
11 }
12
huge_pte_write(pte_t pte)13 static inline unsigned long huge_pte_write(pte_t pte)
14 {
15 return pte_write(pte);
16 }
17
huge_pte_dirty(pte_t pte)18 static inline unsigned long huge_pte_dirty(pte_t pte)
19 {
20 return pte_dirty(pte);
21 }
22
huge_pte_mkwrite(pte_t pte)23 static inline pte_t huge_pte_mkwrite(pte_t pte)
24 {
25 return pte_mkwrite(pte);
26 }
27
huge_pte_mkdirty(pte_t pte)28 static inline pte_t huge_pte_mkdirty(pte_t pte)
29 {
30 return pte_mkdirty(pte);
31 }
32
huge_pte_modify(pte_t pte,pgprot_t newprot)33 static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
34 {
35 return pte_modify(pte, newprot);
36 }
37
huge_pte_mkuffd_wp(pte_t pte)38 static inline pte_t huge_pte_mkuffd_wp(pte_t pte)
39 {
40 return pte_mkuffd_wp(pte);
41 }
42
huge_pte_clear_uffd_wp(pte_t pte)43 static inline pte_t huge_pte_clear_uffd_wp(pte_t pte)
44 {
45 return pte_clear_uffd_wp(pte);
46 }
47
huge_pte_uffd_wp(pte_t pte)48 static inline int huge_pte_uffd_wp(pte_t pte)
49 {
50 return pte_uffd_wp(pte);
51 }
52
53 #ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
huge_pte_clear(struct mm_struct * mm,unsigned long addr,pte_t * ptep,unsigned long sz)54 static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
55 pte_t *ptep, unsigned long sz)
56 {
57 pte_clear(mm, addr, ptep);
58 }
59 #endif
60
61 #ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
hugetlb_free_pgd_range(struct mmu_gather * tlb,unsigned long addr,unsigned long end,unsigned long floor,unsigned long ceiling)62 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
63 unsigned long addr, unsigned long end,
64 unsigned long floor, unsigned long ceiling)
65 {
66 free_pgd_range(tlb, addr, end, floor, ceiling);
67 }
68 #endif
69
70 #ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
set_huge_pte_at(struct mm_struct * mm,unsigned long addr,pte_t * ptep,pte_t pte)71 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
72 pte_t *ptep, pte_t pte)
73 {
74 set_pte_at(mm, addr, ptep, pte);
75 }
76 #endif
77
78 #ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
huge_ptep_get_and_clear(struct mm_struct * mm,unsigned long addr,pte_t * ptep)79 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
80 unsigned long addr, pte_t *ptep)
81 {
82 return ptep_get_and_clear(mm, addr, ptep);
83 }
84 #endif
85
86 #ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
huge_ptep_clear_flush(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep)87 static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
88 unsigned long addr, pte_t *ptep)
89 {
90 return ptep_clear_flush(vma, addr, ptep);
91 }
92 #endif
93
94 #ifndef __HAVE_ARCH_HUGE_PTE_NONE
huge_pte_none(pte_t pte)95 static inline int huge_pte_none(pte_t pte)
96 {
97 return pte_none(pte);
98 }
99 #endif
100
101 /* Please refer to comments above pte_none_mostly() for the usage */
huge_pte_none_mostly(pte_t pte)102 static inline int huge_pte_none_mostly(pte_t pte)
103 {
104 return huge_pte_none(pte) || is_pte_marker(pte);
105 }
106
107 #ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
huge_pte_wrprotect(pte_t pte)108 static inline pte_t huge_pte_wrprotect(pte_t pte)
109 {
110 return pte_wrprotect(pte);
111 }
112 #endif
113
114 #ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
prepare_hugepage_range(struct file * file,unsigned long addr,unsigned long len)115 static inline int prepare_hugepage_range(struct file *file,
116 unsigned long addr, unsigned long len)
117 {
118 struct hstate *h = hstate_file(file);
119
120 if (len & ~huge_page_mask(h))
121 return -EINVAL;
122 if (addr & ~huge_page_mask(h))
123 return -EINVAL;
124
125 return 0;
126 }
127 #endif
128
129 #ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
huge_ptep_set_wrprotect(struct mm_struct * mm,unsigned long addr,pte_t * ptep)130 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
131 unsigned long addr, pte_t *ptep)
132 {
133 ptep_set_wrprotect(mm, addr, ptep);
134 }
135 #endif
136
137 #ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
huge_ptep_set_access_flags(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep,pte_t pte,int dirty)138 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
139 unsigned long addr, pte_t *ptep,
140 pte_t pte, int dirty)
141 {
142 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
143 }
144 #endif
145
146 #ifndef __HAVE_ARCH_HUGE_PTEP_GET
huge_ptep_get(pte_t * ptep)147 static inline pte_t huge_ptep_get(pte_t *ptep)
148 {
149 return ptep_get(ptep);
150 }
151 #endif
152
153 #ifndef __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED
gigantic_page_runtime_supported(void)154 static inline bool gigantic_page_runtime_supported(void)
155 {
156 return IS_ENABLED(CONFIG_ARCH_HAS_GIGANTIC_PAGE);
157 }
158 #endif /* __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED */
159
160 #endif /* _ASM_GENERIC_HUGETLB_H */
161