include/asm-ia64/hugetlb.h

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