1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_SPARC64_HUGETLB_H
3 #define _ASM_SPARC64_HUGETLB_H
6 #include <asm-generic/hugetlb.h>
8 #ifdef CONFIG_HUGETLB_PAGE
9 struct pud_huge_patch_entry
{
13 extern struct pud_huge_patch_entry __pud_huge_patch
, __pud_huge_patch_end
;
16 void set_huge_pte_at(struct mm_struct
*mm
, unsigned long addr
,
17 pte_t
*ptep
, pte_t pte
);
19 pte_t
huge_ptep_get_and_clear(struct mm_struct
*mm
, unsigned long addr
,
22 static inline int is_hugepage_only_range(struct mm_struct
*mm
,
29 * If the arch doesn't supply something else, assume that hugepage
30 * size aligned regions are ok without further preparation.
32 static inline int prepare_hugepage_range(struct file
*file
,
33 unsigned long addr
, unsigned long len
)
35 struct hstate
*h
= hstate_file(file
);
37 if (len
& ~huge_page_mask(h
))
39 if (addr
& ~huge_page_mask(h
))
44 static inline void huge_ptep_clear_flush(struct vm_area_struct
*vma
,
45 unsigned long addr
, pte_t
*ptep
)
49 static inline int huge_pte_none(pte_t pte
)
54 static inline pte_t
huge_pte_wrprotect(pte_t pte
)
56 return pte_wrprotect(pte
);
59 static inline void huge_ptep_set_wrprotect(struct mm_struct
*mm
,
60 unsigned long addr
, pte_t
*ptep
)
62 pte_t old_pte
= *ptep
;
63 set_huge_pte_at(mm
, addr
, ptep
, pte_wrprotect(old_pte
));
66 static inline int huge_ptep_set_access_flags(struct vm_area_struct
*vma
,
67 unsigned long addr
, pte_t
*ptep
,
70 int changed
= !pte_same(*ptep
, pte
);
72 set_huge_pte_at(vma
->vm_mm
, addr
, ptep
, pte
);
73 flush_tlb_page(vma
, addr
);
78 static inline pte_t
huge_ptep_get(pte_t
*ptep
)
83 static inline void arch_clear_hugepage_flags(struct page
*page
)
87 void hugetlb_free_pgd_range(struct mmu_gather
*tlb
, unsigned long addr
,
88 unsigned long end
, unsigned long floor
,
89 unsigned long ceiling
);
91 #endif /* _ASM_SPARC64_HUGETLB_H */