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