git.oblomov.eu Git - linux-2.6/blob - include/asm-generic/4level-fixup.h

   1 #ifndef _4LEVEL_FIXUP_H
   2 #define _4LEVEL_FIXUP_H
   3
   4 #define __ARCH_HAS_4LEVEL_HACK
   5 #define __PAGETABLE_PUD_FOLDED
   6
   7 #define PUD_SIZE                        PGDIR_SIZE
   8 #define PUD_MASK                        PGDIR_MASK
   9 #define PTRS_PER_PUD                    1
  10
  11 #define pud_t                           pgd_t
  12
  13 #define pmd_alloc(mm, pud, address)                     \
  14 ({      pmd_t *ret;                                     \
  15         if (pgd_none(*pud))                             \
  16                 ret = __pmd_alloc(mm, pud, address);    \
  17         else                                            \
  18                 ret = pmd_offset(pud, address);         \
  19         ret;                                            \
  20 })
  21
  22 #define pud_alloc(mm, pgd, address)     (pgd)
  23 #define pud_offset(pgd, start)          (pgd)
  24 #define pud_none(pud)                   0
  25 #define pud_bad(pud)                    0
  26 #define pud_present(pud)                1
  27 #define pud_ERROR(pud)                  do { } while (0)
  28 #define pud_clear(pud)                  pgd_clear(pud)
  29
  30 #undef pud_free_tlb
  31 #define pud_free_tlb(tlb, x)            do { } while (0)
  32 #define pud_free(x)                     do { } while (0)
  33 #define __pud_free_tlb(tlb, x)          do { } while (0)
  34
  35 #undef  pud_addr_end
  36 #define pud_addr_end(addr, end)         (end)
  37
  38 #endif