1 #ifndef _ASM_POWERPC_HUGETLB_H
2 #define _ASM_POWERPC_HUGETLB_H
7 int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
10 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
11 unsigned long end, unsigned long floor,
12 unsigned long ceiling);
14 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
15 pte_t *ptep, pte_t pte);
17 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
21 * The version of vma_mmu_pagesize() in arch/powerpc/mm/hugetlbpage.c needs
22 * to override the version in mm/hugetlb.c
24 #define vma_mmu_pagesize vma_mmu_pagesize
27 * If the arch doesn't supply something else, assume that hugepage
28 * size aligned regions are ok without further preparation.
30 static inline int prepare_hugepage_range(struct file *file,
31 unsigned long addr, unsigned long len)
33 struct hstate *h = hstate_file(file);
34 if (len & ~huge_page_mask(h))
36 if (addr & ~huge_page_mask(h))
41 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
45 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
46 unsigned long addr, pte_t *ptep)
50 static inline int huge_pte_none(pte_t pte)
55 static inline pte_t huge_pte_wrprotect(pte_t pte)
57 return pte_wrprotect(pte);
60 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
61 unsigned long addr, pte_t *ptep,
64 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
67 static inline pte_t huge_ptep_get(pte_t *ptep)
72 static inline int arch_prepare_hugepage(struct page *page)
77 static inline void arch_release_hugepage(struct page *page)
81 #endif /* _ASM_POWERPC_HUGETLB_H */