arch/ia64/include/asm/hugetlb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_IA64_HUGETLB_H
   3 #define _ASM_IA64_HUGETLB_H
   4
   5 #include <asm/page.h>
   6
   7 #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
   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 huge_ptep_clear_flush(struct vm_area_struct *vma,
  24                                          unsigned long addr, pte_t *ptep)
  25 {
  26 }
  27
  28 static inline int huge_pte_none(pte_t pte)
  29 {
  30         return pte_none(pte);
  31 }
  32
  33 static inline pte_t huge_pte_wrprotect(pte_t pte)
  34 {
  35         return pte_wrprotect(pte);
  36 }
  37
  38 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
  39                                            unsigned long addr, pte_t *ptep)
  40 {
  41         ptep_set_wrprotect(mm, addr, ptep);
  42 }
  43
  44 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  45                                              unsigned long addr, pte_t *ptep,
  46                                              pte_t pte, int dirty)
  47 {
  48         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
  49 }
  50
  51 static inline pte_t huge_ptep_get(pte_t *ptep)
  52 {
  53         return *ptep;
  54 }
  55
  56 static inline void arch_clear_hugepage_flags(struct page *page)
  57 {
  58 }
  59
  60 #include <asm-generic/hugetlb.h>
  61
  62 #endif /* _ASM_IA64_HUGETLB_H */