LXR linux/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
   8void 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
  12pte_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
  20static 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
  31static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
  32                                         unsigned long addr, pte_t *ptep)
  33{
  34}
  35
  36#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
  37void huge_ptep_set_wrprotect(struct mm_struct *mm,
  38                                           unsigned long addr, pte_t *ptep);
  39
  40#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
  41int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  42                                             unsigned long addr, pte_t *ptep,
  43                                             pte_t pte, int dirty);
  44
  45#include <asm-generic/hugetlb.h>
  46
  47#endif /* _ASM_PARISC64_HUGETLB_H */
  48