1 #ifndef _ASM_SPARC64_HUGETLB_H
2 #define _ASM_SPARC64_HUGETLB_H
5 #include <asm-generic/hugetlb.h>
8 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
9 pte_t *ptep, pte_t pte);
11 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
14 static inline int is_hugepage_only_range(struct mm_struct *mm,
21 * If the arch doesn't supply something else, assume that hugepage
22 * size aligned regions are ok without further preparation.
24 static inline int prepare_hugepage_range(struct file *file,
25 unsigned long addr, unsigned long len)
27 struct hstate *h = hstate_file(file);
29 if (len & ~huge_page_mask(h))
31 if (addr & ~huge_page_mask(h))
36 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
37 unsigned long addr, pte_t *ptep)
41 static inline int huge_pte_none(pte_t pte)
46 static inline pte_t huge_pte_wrprotect(pte_t pte)
48 return pte_wrprotect(pte);
51 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
52 unsigned long addr, pte_t *ptep)
54 pte_t old_pte = *ptep;
55 set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
58 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
59 unsigned long addr, pte_t *ptep,
62 int changed = !pte_same(*ptep, pte);
64 set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
65 flush_tlb_page(vma, addr);
70 static inline pte_t huge_ptep_get(pte_t *ptep)
75 static inline void arch_clear_hugepage_flags(struct page *page)
79 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
80 unsigned long end, unsigned long floor,
81 unsigned long ceiling);
83 #endif /* _ASM_SPARC64_HUGETLB_H */