projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_HUGETLB_H |
| 2 | #define _ASM_X86_HUGETLB_H | |
| 6d779079 GS |
3 | |
| 4 | #include <asm/page.h> | |
| 106c992a | 5 | #include <asm-generic/hugetlb.h> |
| 6d779079 GS |
6 | |
| 7 | ||
| 8 | static inline int is_hugepage_only_range(struct mm_struct *mm, | |
| 9 | unsigned long addr, | |
| 10 | unsigned long len) { | |
| 11 | return 0; | |
| 12 | } | |
| 13 | ||
| 14 | /* | |
| 15 | * If the arch doesn't supply something else, assume that hugepage | |
| 16 | * size aligned regions are ok without further preparation. | |
| 17 | */ | |
| a5516438 AK |
18 | static inline int prepare_hugepage_range(struct file *file, |
| 19 | unsigned long addr, unsigned long len) | |
| 6d779079 | 20 | { |
| a5516438 AK |
21 | struct hstate *h = hstate_file(file); |
| 22 | if (len & ~huge_page_mask(h)) | |
| 6d779079 | 23 | return -EINVAL; |
| a5516438 | 24 | if (addr & ~huge_page_mask(h)) |
| 6d779079 GS |
25 | return -EINVAL; |
| 26 | return 0; | |
| 27 | } | |
| 28 | ||
| 29 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { | |
| 30 | } | |
| 31 | ||
| 42b77728 | 32 | static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, |
| 6d779079 GS |
33 | unsigned long addr, unsigned long end, |
| 34 | unsigned long floor, | |
| 35 | unsigned long ceiling) | |
| 36 | { | |
| 37 | free_pgd_range(tlb, addr, end, floor, ceiling); | |
| 38 | } | |
| 39 | ||
| 40 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
| 41 | pte_t *ptep, pte_t pte) | |
| 42 | { | |
| 43 | set_pte_at(mm, addr, ptep, pte); | |
| 44 | } | |
| 45 | ||
| 46 | static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, | |
| 47 | unsigned long addr, pte_t *ptep) | |
| 48 | { | |
| 49 | return ptep_get_and_clear(mm, addr, ptep); | |
| 50 | } | |
| 51 | ||
| 8fe627ec GS |
52 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
| 53 | unsigned long addr, pte_t *ptep) | |
| 54 | { | |
| 9844f546 | 55 | ptep_clear_flush(vma, addr, ptep); |
| 8fe627ec GS |
56 | } |
| 57 | ||
| 7f2e9525 GS |
58 | static inline int huge_pte_none(pte_t pte) |
| 59 | { | |
| 60 | return pte_none(pte); | |
| 61 | } | |
| 62 | ||
| 63 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
| 64 | { | |
| 65 | return pte_wrprotect(pte); | |
| 66 | } | |
| 67 | ||
| 68 | static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, | |
| 69 | unsigned long addr, pte_t *ptep) | |
| 70 | { | |
| 71 | ptep_set_wrprotect(mm, addr, ptep); | |
| 72 | } | |
| 73 | ||
| 74 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, | |
| 75 | unsigned long addr, pte_t *ptep, | |
| 76 | pte_t pte, int dirty) | |
| 77 | { | |
| 78 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); | |
| 79 | } | |
| 80 | ||
| 81 | static inline pte_t huge_ptep_get(pte_t *ptep) | |
| 82 | { | |
| 83 | return *ptep; | |
| 84 | } | |
| 85 | ||
| 86 | static inline int arch_prepare_hugepage(struct page *page) | |
| 87 | { | |
| 88 | return 0; | |
| 89 | } | |
| 90 | ||
| 91 | static inline void arch_release_hugepage(struct page *page) | |
| 92 | { | |
| 93 | } | |
| 94 | ||
| 5d3a551c WD |
95 | static inline void arch_clear_hugepage_flags(struct page *page) |
| 96 | { | |
| 97 | } | |
| 98 | ||
| 1965aae3 | 99 | #endif /* _ASM_X86_HUGETLB_H */ |