arch/parisc/include/asm/hugetlb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_PARISC64_HUGETLB_H
   3 #define _ASM_PARISC64_HUGETLB_H
   4
   5 #include <asm/page.h>
   6
   7 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
   8                      pte_t *ptep, pte_t pte);
   9
  10 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
  11                               pte_t *ptep);
  12
  13 static inline int is_hugepage_only_range(struct mm_struct *mm,
  14                                          unsigned long addr,
  15                                          unsigned long len) {
  16         return 0;
  17 }
  18
  19 /*
  20  * If the arch doesn't supply something else, assume that hugepage
  21  * size aligned regions are ok without further preparation.
  22  */
  23 static inline int prepare_hugepage_range(struct file *file,
  24                         unsigned long addr, unsigned long len)
  25 {
  26         if (len & ~HPAGE_MASK)
  27                 return -EINVAL;
  28         if (addr & ~HPAGE_MASK)
  29                 return -EINVAL;
  30         return 0;
  31 }
  32
  33 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  34                                          unsigned long addr, pte_t *ptep)
  35 {
  36 }
  37
  38 static inline int huge_pte_none(pte_t pte)
  39 {
  40         return pte_none(pte);
  41 }
  42
  43 static inline pte_t huge_pte_wrprotect(pte_t pte)
  44 {
  45         return pte_wrprotect(pte);
  46 }
  47
  48 void huge_ptep_set_wrprotect(struct mm_struct *mm,
  49                                            unsigned long addr, pte_t *ptep);
  50
  51 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  52                                              unsigned long addr, pte_t *ptep,
  53                                              pte_t pte, int dirty);
  54
  55 static inline pte_t huge_ptep_get(pte_t *ptep)
  56 {
  57         return *ptep;
  58 }
  59
  60 static inline void arch_clear_hugepage_flags(struct page *page)
  61 {
  62 }
  63
  64 #include <asm-generic/hugetlb.h>
  65
  66 #endif /* _ASM_PARISC64_HUGETLB_H */