| .. | .. |
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| 7 | 7 | |
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| 8 | 8 | #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) |
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| 9 | 9 | |
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| 10 | | -static inline int is_hugepage_only_range(struct mm_struct *mm, |
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| 11 | | - unsigned long addr, |
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| 12 | | - unsigned long len) { |
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| 13 | | - return 0; |
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| 14 | | -} |
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| 15 | | - |
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| 16 | | -/* |
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| 17 | | - * If the arch doesn't supply something else, assume that hugepage |
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| 18 | | - * size aligned regions are ok without further preparation. |
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| 19 | | - */ |
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| 20 | | -static inline int prepare_hugepage_range(struct file *file, |
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| 21 | | - unsigned long addr, unsigned long len) |
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| 22 | | -{ |
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| 23 | | - struct hstate *h = hstate_file(file); |
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| 24 | | - if (len & ~huge_page_mask(h)) |
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| 25 | | - return -EINVAL; |
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| 26 | | - if (addr & ~huge_page_mask(h)) |
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| 27 | | - return -EINVAL; |
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| 28 | | - return 0; |
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| 29 | | -} |
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| 30 | | - |
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| 31 | | -static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, |
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| 32 | | - unsigned long addr, unsigned long end, |
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| 33 | | - unsigned long floor, |
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| 34 | | - unsigned long ceiling) |
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| 35 | | -{ |
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| 36 | | - free_pgd_range(tlb, addr, end, floor, ceiling); |
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| 37 | | -} |
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| 38 | | - |
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| 39 | | -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, |
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| 40 | | - pte_t *ptep, pte_t pte) |
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| 41 | | -{ |
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| 42 | | - set_pte_at(mm, addr, ptep, pte); |
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| 43 | | -} |
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| 44 | | - |
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| 45 | | -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, |
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| 46 | | - unsigned long addr, pte_t *ptep) |
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| 47 | | -{ |
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| 48 | | - return ptep_get_and_clear(mm, addr, ptep); |
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| 49 | | -} |
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| 50 | | - |
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| 51 | | -static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
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| 52 | | - unsigned long addr, pte_t *ptep) |
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| 53 | | -{ |
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| 54 | | - ptep_clear_flush(vma, addr, ptep); |
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| 55 | | -} |
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| 56 | | - |
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| 57 | | -static inline int huge_pte_none(pte_t pte) |
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| 58 | | -{ |
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| 59 | | - return pte_none(pte); |
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| 60 | | -} |
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| 61 | | - |
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| 62 | | -static inline pte_t huge_pte_wrprotect(pte_t pte) |
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| 63 | | -{ |
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| 64 | | - return pte_wrprotect(pte); |
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| 65 | | -} |
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| 66 | | - |
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| 67 | | -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, |
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| 68 | | - unsigned long addr, pte_t *ptep) |
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| 69 | | -{ |
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| 70 | | - ptep_set_wrprotect(mm, addr, ptep); |
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| 71 | | -} |
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| 72 | | - |
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| 73 | | -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, |
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| 74 | | - unsigned long addr, pte_t *ptep, |
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| 75 | | - pte_t pte, int dirty) |
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| 76 | | -{ |
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| 77 | | - return ptep_set_access_flags(vma, addr, ptep, pte, dirty); |
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| 78 | | -} |
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| 79 | | - |
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| 80 | | -static inline pte_t huge_ptep_get(pte_t *ptep) |
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| 81 | | -{ |
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| 82 | | - return *ptep; |
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| 83 | | -} |
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| 84 | | - |
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| 85 | | -static inline void arch_clear_hugepage_flags(struct page *page) |
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| 86 | | -{ |
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| 87 | | -} |
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| 88 | | - |
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| 89 | | -#ifdef CONFIG_ARCH_HAS_GIGANTIC_PAGE |
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| 90 | | -static inline bool gigantic_page_supported(void) { return true; } |
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| 91 | | -#endif |
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| 92 | | - |
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| 93 | 10 | #endif /* _ASM_X86_HUGETLB_H */ |
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