1 #ifndef _ASM_X86_HUGETLB_H
2 #define _ASM_X86_HUGETLB_H
3
4 #include <asm/page.h>
5
6
is_hugepage_only_range(struct mm_struct * mm,unsigned long addr,unsigned long len)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 */
prepare_hugepage_range(struct file * file,unsigned long addr,unsigned long len)17 static inline int prepare_hugepage_range(struct file *file,
18 unsigned long addr, unsigned long len)
19 {
20 struct hstate *h = hstate_file(file);
21 if (len & ~huge_page_mask(h))
22 return -EINVAL;
23 if (addr & ~huge_page_mask(h))
24 return -EINVAL;
25 return 0;
26 }
27
hugetlb_prefault_arch_hook(struct mm_struct * mm)28 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
29 }
30
hugetlb_free_pgd_range(struct mmu_gather * tlb,unsigned long addr,unsigned long end,unsigned long floor,unsigned long ceiling)31 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
32 unsigned long addr, unsigned long end,
33 unsigned long floor,
34 unsigned long ceiling)
35 {
36 free_pgd_range(tlb, addr, end, floor, ceiling);
37 }
38
set_huge_pte_at(struct mm_struct * mm,unsigned long addr,pte_t * ptep,pte_t pte)39 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
40 pte_t *ptep, pte_t pte)
41 {
42 set_pte_at(mm, addr, ptep, pte);
43 }
44
huge_ptep_get_and_clear(struct mm_struct * mm,unsigned long addr,pte_t * ptep)45 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
46 unsigned long addr, pte_t *ptep)
47 {
48 return ptep_get_and_clear(mm, addr, ptep);
49 }
50
huge_ptep_clear_flush(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep)51 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
52 unsigned long addr, pte_t *ptep)
53 {
54 ptep_clear_flush(vma, addr, ptep);
55 }
56
huge_pte_none(pte_t pte)57 static inline int huge_pte_none(pte_t pte)
58 {
59 return pte_none(pte);
60 }
61
huge_pte_wrprotect(pte_t pte)62 static inline pte_t huge_pte_wrprotect(pte_t pte)
63 {
64 return pte_wrprotect(pte);
65 }
66
huge_ptep_set_wrprotect(struct mm_struct * mm,unsigned long addr,pte_t * ptep)67 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
68 unsigned long addr, pte_t *ptep)
69 {
70 ptep_set_wrprotect(mm, addr, ptep);
71 }
72
huge_ptep_set_access_flags(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep,pte_t pte,int dirty)73 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
74 unsigned long addr, pte_t *ptep,
75 pte_t pte, int dirty)
76 {
77 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
78 }
79
huge_ptep_get(pte_t * ptep)80 static inline pte_t huge_ptep_get(pte_t *ptep)
81 {
82 return *ptep;
83 }
84
arch_prepare_hugepage(struct page * page)85 static inline int arch_prepare_hugepage(struct page *page)
86 {
87 return 0;
88 }
89
arch_release_hugepage(struct page * page)90 static inline void arch_release_hugepage(struct page *page)
91 {
92 }
93
94 #endif /* _ASM_X86_HUGETLB_H */
95