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 void hugetlb_prefault_arch_hook(struct mm_struct
*mm
)
18 static inline int is_hugepage_only_range(struct mm_struct
*mm
,
25 * If the arch doesn't supply something else, assume that hugepage
26 * size aligned regions are ok without further preparation.
28 static inline int prepare_hugepage_range(struct file
*file
,
29 unsigned long addr
, unsigned long len
)
31 if (len
& ~HPAGE_MASK
)
33 if (addr
& ~HPAGE_MASK
)
38 static inline void hugetlb_free_pgd_range(struct mmu_gather
*tlb
,
39 unsigned long addr
, unsigned long end
,
41 unsigned long ceiling
)
43 free_pgd_range(tlb
, addr
, end
, floor
, ceiling
);
46 static inline void huge_ptep_clear_flush(struct vm_area_struct
*vma
,
47 unsigned long addr
, pte_t
*ptep
)
51 static inline int huge_pte_none(pte_t pte
)
56 static inline pte_t
huge_pte_wrprotect(pte_t pte
)
58 return pte_wrprotect(pte
);
61 static inline void huge_ptep_set_wrprotect(struct mm_struct
*mm
,
62 unsigned long addr
, pte_t
*ptep
)
64 pte_t old_pte
= *ptep
;
65 set_huge_pte_at(mm
, addr
, ptep
, pte_wrprotect(old_pte
));
68 static inline int huge_ptep_set_access_flags(struct vm_area_struct
*vma
,
69 unsigned long addr
, pte_t
*ptep
,
72 int changed
= !pte_same(*ptep
, pte
);
74 set_huge_pte_at(vma
->vm_mm
, addr
, ptep
, pte
);
75 flush_tlb_page(vma
, addr
);
80 static inline pte_t
huge_ptep_get(pte_t
*ptep
)
85 static inline int arch_prepare_hugepage(struct page
*page
)
90 static inline void arch_release_hugepage(struct page
*page
)
94 static inline void arch_clear_hugepage_flags(struct page
*page
)
98 #endif /* _ASM_SPARC64_HUGETLB_H */