| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_IA64_HUGETLB_H |
| 3 | #define _ASM_IA64_HUGETLB_H |
| 4 | |
| 5 | #include <asm/page.h> |
| 6 | #include <asm-generic/hugetlb.h> |
| 7 | |
| 8 | |
| 9 | void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, |
| 10 | unsigned long end, unsigned long floor, |
| 11 | unsigned long ceiling); |
| 12 | |
| 13 | int prepare_hugepage_range(struct file *file, |
| 14 | unsigned long addr, unsigned long len); |
| 15 | |
| 16 | static inline int is_hugepage_only_range(struct mm_struct *mm, |
| 17 | unsigned long addr, |
| 18 | unsigned long len) |
| 19 | { |
| 20 | return (REGION_NUMBER(addr) == RGN_HPAGE || |
| 21 | REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE); |
| 22 | } |
| 23 | |
| 24 | static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, |
| 25 | pte_t *ptep, pte_t pte) |
| 26 | { |
| 27 | set_pte_at(mm, addr, ptep, pte); |
| 28 | } |
| 29 | |
| 30 | static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, |
| 31 | unsigned long addr, pte_t *ptep) |
| 32 | { |
| 33 | return ptep_get_and_clear(mm, addr, ptep); |
| 34 | } |
| 35 | |
| 36 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
| 37 | unsigned long addr, pte_t *ptep) |
| 38 | { |
| 39 | } |
| 40 | |
| 41 | static inline int huge_pte_none(pte_t pte) |
| 42 | { |
| 43 | return pte_none(pte); |
| 44 | } |
| 45 | |
| 46 | static inline pte_t huge_pte_wrprotect(pte_t pte) |
| 47 | { |
| 48 | return pte_wrprotect(pte); |
| 49 | } |
| 50 | |
| 51 | static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, |
| 52 | unsigned long addr, pte_t *ptep) |
| 53 | { |
| 54 | ptep_set_wrprotect(mm, addr, ptep); |
| 55 | } |
| 56 | |
| 57 | static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, |
| 58 | unsigned long addr, pte_t *ptep, |
| 59 | pte_t pte, int dirty) |
| 60 | { |
| 61 | return ptep_set_access_flags(vma, addr, ptep, pte, dirty); |
| 62 | } |
| 63 | |
| 64 | static inline pte_t huge_ptep_get(pte_t *ptep) |
| 65 | { |
| 66 | return *ptep; |
| 67 | } |
| 68 | |
| 69 | static inline void arch_clear_hugepage_flags(struct page *page) |
| 70 | { |
| 71 | } |
| 72 | |
| 73 | #endif /* _ASM_IA64_HUGETLB_H */ |