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 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  24 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  25                                          unsigned long addr, pte_t *ptep)
  26 {
  27 }
  28
  29 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
  30                                            unsigned long addr, pte_t *ptep)
  31 {
  32         ptep_set_wrprotect(mm, addr, ptep);
  33 }
  34
  35 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  36                                              unsigned long addr, pte_t *ptep,
  37                                              pte_t pte, int dirty)
  38 {
  39         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
  40 }
  41
  42 static inline pte_t huge_ptep_get(pte_t *ptep)
  43 {
  44         return *ptep;
  45 }
  46
  47 static inline void arch_clear_hugepage_flags(struct page *page)
  48 {
  49 }
  50
  51 #include <asm-generic/hugetlb.h>
  52
  53 #endif /* _ASM_IA64_HUGETLB_H */