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hugetlb.h
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1 #ifndef _ASM_IA64_HUGETLB_H
2 #define _ASM_IA64_HUGETLB_H
3 
4 #include <asm/page.h>
5 
6 
7 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
8  unsigned long end, unsigned long floor,
9  unsigned long ceiling);
10 
11 int prepare_hugepage_range(struct file *file,
12  unsigned long addr, unsigned long len);
13 
14 static inline int is_hugepage_only_range(struct mm_struct *mm,
15  unsigned long addr,
16  unsigned long len)
17 {
18  return (REGION_NUMBER(addr) == RGN_HPAGE ||
19  REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
20 }
21 
22 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
23 {
24 }
25 
26 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
27  pte_t *ptep, pte_t pte)
28 {
29  set_pte_at(mm, addr, ptep, pte);
30 }
31 
32 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
33  unsigned long addr, pte_t *ptep)
34 {
35  return ptep_get_and_clear(mm, addr, ptep);
36 }
37 
38 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
39  unsigned long addr, pte_t *ptep)
40 {
41 }
42 
43 static inline int huge_pte_none(pte_t pte)
44 {
45  return pte_none(pte);
46 }
47 
48 static inline pte_t huge_pte_wrprotect(pte_t pte)
49 {
50  return pte_wrprotect(pte);
51 }
52 
53 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
54  unsigned long addr, pte_t *ptep)
55 {
56  ptep_set_wrprotect(mm, addr, ptep);
57 }
58 
59 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
60  unsigned long addr, pte_t *ptep,
61  pte_t pte, int dirty)
62 {
63  return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
64 }
65 
66 static inline pte_t huge_ptep_get(pte_t *ptep)
67 {
68  return *ptep;
69 }
70 
71 static inline int arch_prepare_hugepage(struct page *page)
72 {
73  return 0;
74 }
75 
76 static inline void arch_release_hugepage(struct page *page)
77 {
78 }
79 
80 static inline void arch_clear_hugepage_flags(struct page *page)
81 {
82 }
83 
84 #endif /* _ASM_IA64_HUGETLB_H */
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