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
8static inline unsigned long huge_pte_write(pte_t pte)
9{
10 return pte_write(pte);
11}
12
13static inline unsigned long huge_pte_dirty(pte_t pte)
14{
15 return pte_dirty(pte);
16}
17
18static 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
24static inline pte_t huge_pte_wrprotect(pte_t pte)
25{
26 return pte_wrprotect(pte);
27}
28#endif
29
30static inline pte_t huge_pte_mkdirty(pte_t pte)
31{
32 return pte_mkdirty(pte);
33}
34
35static 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
41static inline pte_t huge_pte_mkuffd_wp(pte_t pte)
42{
43 return huge_pte_wrprotect(pte: pte_mkuffd_wp(pte));
44}
45#endif
46
47#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR_UFFD_WP
48static 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
55static 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
62static 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_HUGE_SET_HUGE_PTE_AT
70static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
71 pte_t *ptep, pte_t pte, unsigned long sz)
72{
73 set_pte_at(mm, addr, ptep, pte);
74}
75#endif
76
77#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
78static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
79 unsigned long addr, pte_t *ptep, unsigned long sz)
80{
81 return ptep_get_and_clear(mm, addr, ptep);
82}
83#endif
84
85#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
86static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
87 unsigned long addr, pte_t *ptep)
88{
89 return ptep_clear_flush(vma, address: addr, ptep);
90}
91#endif
92
93#ifndef __HAVE_ARCH_HUGE_PTE_NONE
94static inline int huge_pte_none(pte_t pte)
95{
96 return pte_none(pte);
97}
98#endif
99
100#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
101static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
102 unsigned long addr, pte_t *ptep)
103{
104 ptep_set_wrprotect(mm, addr, ptep);
105}
106#endif
107
108#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
109static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
110 unsigned long addr, pte_t *ptep,
111 pte_t pte, int dirty)
112{
113 return ptep_set_access_flags(vma, address: addr, ptep, entry: pte, dirty);
114}
115#endif
116
117#ifndef __HAVE_ARCH_HUGE_PTEP_GET
118static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
119{
120 return ptep_get(ptep);
121}
122#endif
123
124#ifndef __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED
125static inline bool gigantic_page_runtime_supported(void)
126{
127 return IS_ENABLED(CONFIG_ARCH_HAS_GIGANTIC_PAGE);
128}
129#endif /* __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED */
130
131#endif /* _ASM_GENERIC_HUGETLB_H */
132

source code of linux/include/asm-generic/hugetlb.h