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 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
   8 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
   9                      pte_t *ptep, pte_t pte);
  10
  11 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
  12 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
  13                               pte_t *ptep);
  14
  15 /*
  16  * If the arch doesn't supply something else, assume that hugepage
  17  * size aligned regions are ok without further preparation.
  18  */
  19 #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE
  20 static inline int prepare_hugepage_range(struct file *file,
  21                         unsigned long addr, unsigned long len)
  22 {
  23         if (len & ~HPAGE_MASK)
  24                 return -EINVAL;
  25         if (addr & ~HPAGE_MASK)
  26                 return -EINVAL;
  27         return 0;
  28 }
  29
  30 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  31 static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
  32                                           unsigned long addr, pte_t *ptep)
  33 {
  34         return *ptep;
  35 }
  36
  37 #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
  38 void huge_ptep_set_wrprotect(struct mm_struct *mm,
  39                                            unsigned long addr, pte_t *ptep);
  40
  41 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
  42 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  43                                              unsigned long addr, pte_t *ptep,
  44                                              pte_t pte, int dirty);
  45
  46 #include <asm-generic/hugetlb.h>
  47
  48 #endif /* _ASM_PARISC64_HUGETLB_H */