1 #ifndef _ASM_SPARC64_HUGETLB_H 2 #define _ASM_SPARC64_HUGETLB_H 3 4 #include <asm/page.h> 5 6 7 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 8 pte_t *ptep, pte_t pte); 9 10 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, 11 pte_t *ptep); 12 13 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) 14 { 15 hugetlb_setup(mm); 16 } 17 18 static inline int is_hugepage_only_range(struct mm_struct *mm, 19 unsigned long addr, 20 unsigned long len) { 21 return 0; 22 } 23 24 /* 25 * If the arch doesn't supply something else, assume that hugepage 26 * size aligned regions are ok without further preparation. 27 */ 28 static inline int prepare_hugepage_range(struct file *file, 29 unsigned long addr, unsigned long len) 30 { 31 if (len & ~HPAGE_MASK) 32 return -EINVAL; 33 if (addr & ~HPAGE_MASK) 34 return -EINVAL; 35 return 0; 36 } 37 38 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, 39 unsigned long addr, unsigned long end, 40 unsigned long floor, 41 unsigned long ceiling) 42 { 43 free_pgd_range(tlb, addr, end, floor, ceiling); 44 } 45 46 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 47 unsigned long addr, pte_t *ptep) 48 { 49 } 50 51 static inline int huge_pte_none(pte_t pte) 52 { 53 return pte_none(pte); 54 } 55 56 static inline pte_t huge_pte_wrprotect(pte_t pte) 57 { 58 return pte_wrprotect(pte); 59 } 60 61 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, 62 unsigned long addr, pte_t *ptep) 63 { 64 ptep_set_wrprotect(mm, addr, ptep); 65 } 66 67 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, 68 unsigned long addr, pte_t *ptep, 69 pte_t pte, int dirty) 70 { 71 return ptep_set_access_flags(vma, addr, ptep, pte, dirty); 72 } 73 74 static inline pte_t huge_ptep_get(pte_t *ptep) 75 { 76 return *ptep; 77 } 78 79 static inline int arch_prepare_hugepage(struct page *page) 80 { 81 return 0; 82 } 83 84 static inline void arch_release_hugepage(struct page *page) 85 { 86 } 87 88 static inline void arch_clear_hugepage_flags(struct page *page) 89 { 90 } 91 92 #endif /* _ASM_SPARC64_HUGETLB_H */ 93