arch/riscv/include/asm/hugetlb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_RISCV_HUGETLB_H
   3 #define _ASM_RISCV_HUGETLB_H
   4
   5 #include <asm/page.h>
   6
   7 static inline void arch_clear_hugepage_flags(struct page *page)
   8 {
   9         clear_bit(PG_dcache_clean, &page->flags);
  10 }
  11 #define arch_clear_hugepage_flags arch_clear_hugepage_flags
  12
  13 #ifdef CONFIG_RISCV_ISA_SVNAPOT
  14 #define __HAVE_ARCH_HUGE_PTE_CLEAR
  15 void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
  16                     pte_t *ptep, unsigned long sz);
  17
  18 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
  19 void set_huge_pte_at(struct mm_struct *mm,
  20                      unsigned long addr, pte_t *ptep, pte_t pte);
  21
  22 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
  23 pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
  24                               unsigned long addr, pte_t *ptep);
  25
  26 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  27 pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
  28                             unsigned long addr, pte_t *ptep);
  29
  30 #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
  31 void huge_ptep_set_wrprotect(struct mm_struct *mm,
  32                              unsigned long addr, pte_t *ptep);
  33
  34 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
  35 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 #define __HAVE_ARCH_HUGE_PTEP_GET
  40 pte_t huge_ptep_get(pte_t *ptep);
  41
  42 pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
  43 #define arch_make_huge_pte arch_make_huge_pte
  44
  45 #endif /*CONFIG_RISCV_ISA_SVNAPOT*/
  46
  47 #include <asm-generic/hugetlb.h>
  48
  49 #endif /* _ASM_RISCV_HUGETLB_H */