Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
[linux-2.6] / arch / sh / include / asm / hugetlb.h
1 #ifndef _ASM_SH_HUGETLB_H
2 #define _ASM_SH_HUGETLB_H
3
4 #include <asm/page.h>
5
6
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  */
17 static inline int prepare_hugepage_range(struct file *file,
18                         unsigned long addr, unsigned long len)
19 {
20         if (len & ~HPAGE_MASK)
21                 return -EINVAL;
22         if (addr & ~HPAGE_MASK)
23                 return -EINVAL;
24         return 0;
25 }
26
27 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
28 }
29
30 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
31                                           unsigned long addr, unsigned long end,
32                                           unsigned long floor,
33                                           unsigned long ceiling)
34 {
35         free_pgd_range(tlb, addr, end, floor, ceiling);
36 }
37
38 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
39                                    pte_t *ptep, pte_t pte)
40 {
41         set_pte_at(mm, addr, ptep, pte);
42 }
43
44 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
45                                             unsigned long addr, pte_t *ptep)
46 {
47         return ptep_get_and_clear(mm, addr, ptep);
48 }
49
50 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
51                                          unsigned long addr, pte_t *ptep)
52 {
53 }
54
55 static inline int huge_pte_none(pte_t pte)
56 {
57         return pte_none(pte);
58 }
59
60 static inline pte_t huge_pte_wrprotect(pte_t pte)
61 {
62         return pte_wrprotect(pte);
63 }
64
65 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
66                                            unsigned long addr, pte_t *ptep)
67 {
68         ptep_set_wrprotect(mm, addr, ptep);
69 }
70
71 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
72                                              unsigned long addr, pte_t *ptep,
73                                              pte_t pte, int dirty)
74 {
75         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
76 }
77
78 static inline pte_t huge_ptep_get(pte_t *ptep)
79 {
80         return *ptep;
81 }
82
83 static inline int arch_prepare_hugepage(struct page *page)
84 {
85         return 0;
86 }
87
88 static inline void arch_release_hugepage(struct page *page)
89 {
90 }
91
92 #endif /* _ASM_SH_HUGETLB_H */