arch/ia64/include/asm/hugetlb.h

   1 #ifndef _ASM_IA64_HUGETLB_H
   2 #define _ASM_IA64_HUGETLB_H
   3
   4 #include <asm/page.h>
   5 #include <asm-generic/hugetlb.h>
   6
   7
   8 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
   9                             unsigned long end, unsigned long floor,
  10                             unsigned long ceiling);
  11
  12 int prepare_hugepage_range(struct file *file,
  13                         unsigned long addr, unsigned long len);
  14
  15 static inline int is_hugepage_only_range(struct mm_struct *mm,
  16                                          unsigned long addr,
  17                                          unsigned long len)
  18 {
  19         return (REGION_NUMBER(addr) == RGN_HPAGE ||
  20                 REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
  21 }
  22
  23 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
  24 {
  25 }
  26
  27 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
  28                                    pte_t *ptep, pte_t pte)
  29 {
  30         set_pte_at(mm, addr, ptep, pte);
  31 }
  32
  33 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
  34                                             unsigned long addr, pte_t *ptep)
  35 {
  36         return ptep_get_and_clear(mm, addr, ptep);
  37 }
  38
  39 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  40                                          unsigned long addr, pte_t *ptep)
  41 {
  42 }
  43
  44 static inline int huge_pte_none(pte_t pte)
  45 {
  46         return pte_none(pte);
  47 }
  48
  49 static inline pte_t huge_pte_wrprotect(pte_t pte)
  50 {
  51         return pte_wrprotect(pte);
  52 }
  53
  54 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
  55                                            unsigned long addr, pte_t *ptep)
  56 {
  57         ptep_set_wrprotect(mm, addr, ptep);
  58 }
  59
  60 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  61                                              unsigned long addr, pte_t *ptep,
  62                                              pte_t pte, int dirty)
  63 {
  64         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
  65 }
  66
  67 static inline pte_t huge_ptep_get(pte_t *ptep)
  68 {
  69         return *ptep;
  70 }
  71
  72 static inline int arch_prepare_hugepage(struct page *page)
  73 {
  74         return 0;
  75 }
  76
  77 static inline void arch_release_hugepage(struct page *page)
  78 {
  79 }
  80
  81 static inline void arch_clear_hugepage_flags(struct page *page)
  82 {
  83 }
  84
  85 #endif /* _ASM_IA64_HUGETLB_H */