include/asm-generic/4level-fixup.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _4LEVEL_FIXUP_H
   3 #define _4LEVEL_FIXUP_H
   4
   5 #define __ARCH_HAS_4LEVEL_HACK
   6 #define __PAGETABLE_PUD_FOLDED
   7
   8 #define PUD_SHIFT                       PGDIR_SHIFT
   9 #define PUD_SIZE                        PGDIR_SIZE
  10 #define PUD_MASK                        PGDIR_MASK
  11 #define PTRS_PER_PUD                    1
  12
  13 #define pud_t                           pgd_t
  14
  15 #define pmd_alloc(mm, pud, address) \
  16         ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
  17                 NULL: pmd_offset(pud, address))
  18
  19 #define pud_offset(pgd, start)          (pgd)
  20 #define pud_none(pud)                   0
  21 #define pud_bad(pud)                    0
  22 #define pud_present(pud)                1
  23 #define pud_ERROR(pud)                  do { } while (0)
  24 #define pud_clear(pud)                  pgd_clear(pud)
  25 #define pud_val(pud)                    pgd_val(pud)
  26 #define pud_populate(mm, pud, pmd)      pgd_populate(mm, pud, pmd)
  27 #define pud_page(pud)                   pgd_page(pud)
  28 #define pud_page_vaddr(pud)             pgd_page_vaddr(pud)
  29
  30 #undef pud_free_tlb
  31 #define pud_free_tlb(tlb, x, addr)      do { } while (0)
  32 #define pud_free(mm, x)                 do { } while (0)
  33 #define __pud_free_tlb(tlb, x, addr)    do { } while (0)
  34
  35 #undef  pud_addr_end
  36 #define pud_addr_end(addr, end)         (end)
  37
  38 #include <asm-generic/5level-fixup.h>
  39
  40 #endif