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Gerald Schaefer6d779072008-04-28 02:13:27 -07001#ifndef _ASM_SPARC64_HUGETLB_H
2#define _ASM_SPARC64_HUGETLB_H
3
4#include <asm/page.h>
5
6
7void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
8 pte_t *ptep, pte_t pte);
9
10pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
11 pte_t *ptep);
12
13void hugetlb_prefault_arch_hook(struct mm_struct *mm);
14
15static inline int is_hugepage_only_range(struct mm_struct *mm,
16 unsigned long addr,
17 unsigned long len) {
18 return 0;
19}
20
21/*
22 * If the arch doesn't supply something else, assume that hugepage
23 * size aligned regions are ok without further preparation.
24 */
25static inline int prepare_hugepage_range(unsigned long addr, unsigned long len)
26{
27 if (len & ~HPAGE_MASK)
28 return -EINVAL;
29 if (addr & ~HPAGE_MASK)
30 return -EINVAL;
31 return 0;
32}
33
34static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb,
35 unsigned long addr, unsigned long end,
36 unsigned long floor,
37 unsigned long ceiling)
38{
39 free_pgd_range(tlb, addr, end, floor, ceiling);
40}
41
Gerald Schaefer8fe627e2008-04-28 02:13:28 -070042static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
43 unsigned long addr, pte_t *ptep)
44{
45}
46
Gerald Schaefer7f2e9522008-04-28 02:13:29 -070047static inline int huge_pte_none(pte_t pte)
48{
49 return pte_none(pte);
50}
51
52static inline pte_t huge_pte_wrprotect(pte_t pte)
53{
54 return pte_wrprotect(pte);
55}
56
57static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
58 unsigned long addr, pte_t *ptep)
59{
60 ptep_set_wrprotect(mm, addr, ptep);
61}
62
63static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
64 unsigned long addr, pte_t *ptep,
65 pte_t pte, int dirty)
66{
67 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
68}
69
70static inline pte_t huge_ptep_get(pte_t *ptep)
71{
72 return *ptep;
73}
74
75static inline int arch_prepare_hugepage(struct page *page)
76{
77 return 0;
78}
79
80static inline void arch_release_hugepage(struct page *page)
81{
82}
83
Gerald Schaefer6d779072008-04-28 02:13:27 -070084#endif /* _ASM_SPARC64_HUGETLB_H */