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

   1 #ifndef _4LEVEL_FIXUP_H
   2 #define _4LEVEL_FIXUP_H
   3
   4 #define __ARCH_HAS_4LEVEL_HACK
   5
   6 #define PUD_SIZE                        PGDIR_SIZE
   7 #define PUD_MASK                        PGDIR_MASK
   8 #define PTRS_PER_PUD                    1
   9
  10 #define pud_t                           pgd_t
  11
  12 #define pmd_alloc(mm, pud, address)                     \
  13 ({      pmd_t *ret;                                     \
  14         if (pgd_none(*pud))                             \
  15                 ret = __pmd_alloc(mm, pud, address);    \
  16         else                                            \
  17                 ret = pmd_offset(pud, address);         \
  18         ret;                                            \
  19 })
  20
  21 #define pud_alloc(mm, pgd, address)     (pgd)
  22 #define pud_offset(pgd, start)          (pgd)
  23 #define pud_none(pud)                   0
  24 #define pud_bad(pud)                    0
  25 #define pud_present(pud)                1
  26 #define pud_ERROR(pud)                  do { } while (0)
  27 #define pud_clear(pud)                  pgd_clear(pud)
  28
  29 #undef pud_free_tlb
  30 #define pud_free_tlb(tlb, x)            do { } while (0)
  31 #define pud_free(x)                     do { } while (0)
  32 #define __pud_free_tlb(tlb, x)          do { } while (0)
  33
  34 #endif