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 #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
  13 int prepare_hugepage_range(struct file *file,
  14                         unsigned long addr, unsigned long len);
  15
  16 static inline int is_hugepage_only_range(struct mm_struct *mm,
  17                                          unsigned long addr,
  18                                          unsigned long len)
  19 {
  20         return (REGION_NUMBER(addr) == RGN_HPAGE ||
  21                 REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
  22 }
  23
  24 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  25 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  26                                          unsigned long addr, pte_t *ptep)
  27 {
  28 }
  29
  30 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
  31                                            unsigned long addr, pte_t *ptep)
  32 {
  33         ptep_set_wrprotect(mm, addr, ptep);
  34 }
  35
  36 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  37                                              unsigned long addr, pte_t *ptep,
  38                                              pte_t pte, int dirty)
  39 {
  40         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
  41 }
  42
  43 static inline pte_t huge_ptep_get(pte_t *ptep)
  44 {
  45         return *ptep;
  46 }
  47
  48 static inline void arch_clear_hugepage_flags(struct page *page)
  49 {
  50 }
  51
  52 #include <asm-generic/hugetlb.h>
  53
  54 #endif /* _ASM_IA64_HUGETLB_H */