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Sam Ravnborga00736e2008-06-19 20:26:19 +02001#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 */
Andi Kleena5516432008-07-23 21:27:41 -070025static inline int prepare_hugepage_range(struct file *file,
26 unsigned long addr, unsigned long len)
Sam Ravnborga00736e2008-06-19 20:26:19 +020027{
28 if (len & ~HPAGE_MASK)
29 return -EINVAL;
30 if (addr & ~HPAGE_MASK)
31 return -EINVAL;
32 return 0;
33}
34
Jan Beulich42b77722008-07-23 21:27:10 -070035static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
Sam Ravnborga00736e2008-06-19 20:26:19 +020036 unsigned long addr, unsigned long end,
37 unsigned long floor,
38 unsigned long ceiling)
39{
40 free_pgd_range(tlb, addr, end, floor, ceiling);
41}
42
43static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
44 unsigned long addr, pte_t *ptep)
45{
46}
47
48static inline int huge_pte_none(pte_t pte)
49{
50 return pte_none(pte);
51}
52
53static inline pte_t huge_pte_wrprotect(pte_t pte)
54{
55 return pte_wrprotect(pte);
56}
57
58static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
59 unsigned long addr, pte_t *ptep)
60{
61 ptep_set_wrprotect(mm, addr, ptep);
62}
63
64static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
65 unsigned long addr, pte_t *ptep,
66 pte_t pte, int dirty)
67{
68 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
69}
70
71static inline pte_t huge_ptep_get(pte_t *ptep)
72{
73 return *ptep;
74}
75
76static inline int arch_prepare_hugepage(struct page *page)
77{
78 return 0;
79}
80
81static inline void arch_release_hugepage(struct page *page)
82{
83}
84
85#endif /* _ASM_SPARC64_HUGETLB_H */