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/cacheflush.h>
   6 #include <asm/page.h>
   7
   8 static inline void arch_clear_hugepage_flags(struct page *page)
   9 {
  10         clear_bit(PG_dcache_clean, &page->flags);
  11 }
  12 #define arch_clear_hugepage_flags arch_clear_hugepage_flags
  13
  14 #ifdef CONFIG_RISCV_ISA_SVNAPOT
  15 #define __HAVE_ARCH_HUGE_PTE_CLEAR
  16 void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
  17                     pte_t *ptep, unsigned long sz);
  18
  19 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
  20 void set_huge_pte_at(struct mm_struct *mm,
  21                      unsigned long addr, pte_t *ptep, pte_t pte,
  22                      unsigned long sz);
  23
  24 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
  25 pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
  26                               unsigned long addr, pte_t *ptep);
  27
  28 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
  29 pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
  30                             unsigned long addr, pte_t *ptep);
  31
  32 #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
  33 void huge_ptep_set_wrprotect(struct mm_struct *mm,
  34                              unsigned long addr, pte_t *ptep);
  35
  36 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
  37 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
  38                                unsigned long addr, pte_t *ptep,
  39                                pte_t pte, int dirty);
  40
  41 #define __HAVE_ARCH_HUGE_PTEP_GET
  42 pte_t huge_ptep_get(pte_t *ptep);
  43
  44 pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
  45 #define arch_make_huge_pte arch_make_huge_pte
  46
  47 #endif /*CONFIG_RISCV_ISA_SVNAPOT*/
  48
  49 #include <asm-generic/hugetlb.h>
  50
  51 #endif /* _ASM_RISCV_HUGETLB_H */