release/src-rt-6.x.4708/linux/linux-2.6.36/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         ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
  15                 NULL: pmd_offset(pud, address))
  16
  17 #define pud_alloc(mm, pgd, address)     (pgd)
  18 #define pud_offset(pgd, start)          (pgd)
  19 #define pud_none(pud)                   0
  20 #define pud_bad(pud)                    0
  21 #define pud_present(pud)                1
  22 #define pud_ERROR(pud)                  do { } while (0)
  23 #define pud_clear(pud)                  pgd_clear(pud)
  24 #define pud_val(pud)                    pgd_val(pud)
  25 #define pud_populate(mm, pud, pmd)      pgd_populate(mm, pud, pmd)
  26 #define pud_page(pud)                   pgd_page(pud)
  27 #define pud_page_vaddr(pud)             pgd_page_vaddr(pud)
  28
  29 #undef pud_free_tlb
  30 #define pud_free_tlb(tlb, x, addr)      do { } while (0)
  31 #define pud_free(mm, x)                 do { } while (0)
  32 #define __pud_free_tlb(tlb, x, addr)    do { } while (0)
  33
  34 #undef  pud_addr_end
  35 #define pud_addr_end(addr, end)         (end)
  36
  37 #endif