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 if (len & ~HPAGE_MASK)
29 if (addr & ~HPAGE_MASK)
34 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
35 unsigned long addr, unsigned long end,
37 unsigned long ceiling)
39 free_pgd_range(tlb, addr, end, floor, ceiling);
42 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
43 unsigned long addr, pte_t *ptep)
47 static inline int huge_pte_none(pte_t pte)
52 static inline pte_t huge_pte_wrprotect(pte_t pte)
54 return pte_wrprotect(pte);
57 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
58 unsigned long addr, pte_t *ptep)
60 pte_t old_pte = *ptep;
61 set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
64 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
65 unsigned long addr, pte_t *ptep,
68 int changed = !pte_same(*ptep, pte);
70 set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
71 flush_tlb_page(vma, addr);
76 static inline pte_t huge_ptep_get(pte_t *ptep)
81 static inline int arch_prepare_hugepage(struct page *page)
86 static inline void arch_release_hugepage(struct page *page)
90 static inline void arch_clear_hugepage_flags(struct page *page)
94 #endif /* _ASM_SPARC64_HUGETLB_H */