1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_PARISC64_HUGETLB_H 3 #define _ASM_PARISC64_HUGETLB_H 4 5 #include <asm/page.h> 6 #include <asm-generic/hugetlb.h> 7 8 9 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 10 pte_t *ptep, pte_t pte); 11 12 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, 13 pte_t *ptep); 14 15 static 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 */ 25 static inline int prepare_hugepage_range(struct file *file, 26 unsigned long addr, unsigned long len) 27 { 28 if (len & ~HPAGE_MASK) 29 return -EINVAL; 30 if (addr & ~HPAGE_MASK) 31 return -EINVAL; 32 return 0; 33 } 34 35 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, 36 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 43 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 44 unsigned long addr, pte_t *ptep) 45 { 46 } 47 48 static inline int huge_pte_none(pte_t pte) 49 { 50 return pte_none(pte); 51 } 52 53 static inline pte_t huge_pte_wrprotect(pte_t pte) 54 { 55 return pte_wrprotect(pte); 56 } 57 58 void huge_ptep_set_wrprotect(struct mm_struct *mm, 59 unsigned long addr, pte_t *ptep); 60 61 int huge_ptep_set_access_flags(struct vm_area_struct *vma, 62 unsigned long addr, pte_t *ptep, 63 pte_t pte, int dirty); 64 65 static inline pte_t huge_ptep_get(pte_t *ptep) 66 { 67 return *ptep; 68 } 69 70 static inline void arch_clear_hugepage_flags(struct page *page) 71 { 72 } 73 74 #endif /* _ASM_PARISC64_HUGETLB_H */ 75