Commit | Line | Data |
---|---|---|
6d779079 GS |
1 | #ifndef _ASM_POWERPC_HUGETLB_H |
2 | #define _ASM_POWERPC_HUGETLB_H | |
3 | ||
4 | #include <asm/page.h> | |
5 | ||
6 | ||
7 | int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr, | |
8 | unsigned long len); | |
9 | ||
42b77728 | 10 | void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, |
6d779079 GS |
11 | unsigned long end, unsigned long floor, |
12 | unsigned long ceiling); | |
13 | ||
14 | void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
15 | pte_t *ptep, pte_t pte); | |
16 | ||
17 | pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, | |
18 | pte_t *ptep); | |
19 | ||
20 | /* | |
21 | * If the arch doesn't supply something else, assume that hugepage | |
22 | * size aligned regions are ok without further preparation. | |
23 | */ | |
24 | static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) | |
25 | { | |
26 | if (len & ~HPAGE_MASK) | |
27 | return -EINVAL; | |
28 | if (addr & ~HPAGE_MASK) | |
29 | return -EINVAL; | |
30 | return 0; | |
31 | } | |
32 | ||
33 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) | |
34 | { | |
35 | } | |
36 | ||
8fe627ec GS |
37 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
38 | unsigned long addr, pte_t *ptep) | |
39 | { | |
40 | } | |
41 | ||
7f2e9525 GS |
42 | static inline int huge_pte_none(pte_t pte) |
43 | { | |
44 | return pte_none(pte); | |
45 | } | |
46 | ||
47 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
48 | { | |
49 | return pte_wrprotect(pte); | |
50 | } | |
51 | ||
7f2e9525 GS |
52 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, |
53 | unsigned long addr, pte_t *ptep, | |
54 | pte_t pte, int dirty) | |
55 | { | |
56 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); | |
57 | } | |
58 | ||
59 | static inline pte_t huge_ptep_get(pte_t *ptep) | |
60 | { | |
61 | return *ptep; | |
62 | } | |
63 | ||
64 | static inline int arch_prepare_hugepage(struct page *page) | |
65 | { | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static inline void arch_release_hugepage(struct page *page) | |
70 | { | |
71 | } | |
72 | ||
6d779079 | 73 | #endif /* _ASM_POWERPC_HUGETLB_H */ |