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

INCLUDED FROM

#ifndef _4LEVEL_FIXUP_H
#define _4LEVEL_FIXUP_H

#define __ARCH_HAS_4LEVEL_HACK
#define __PAGETABLE_PUD_FOLDED

#define PUD_SIZE                        PGDIR_SIZE
#define PUD_MASK                        PGDIR_MASK
#define PTRS_PER_PUD                    1

#define pud_t                           pgd_t

#define pmd_alloc(mm, pud, address) \
        ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
                NULL: pmd_offset(pud, address))

#define pud_alloc(mm, pgd, address)     (pgd)
#define pud_offset(pgd, start)          (pgd)
#define pud_none(pud)                   0
#define pud_bad(pud)                    0
#define pud_present(pud)                1
#define pud_ERROR(pud)                  do { } while (0)
#define pud_clear(pud)                  pgd_clear(pud)
#define pud_val(pud)                    pgd_val(pud)
#define pud_populate(mm, pud, pmd)      pgd_populate(mm, pud, pmd)
#define pud_page(pud)                   pgd_page(pud)
#define pud_page_vaddr(pud)             pgd_page_vaddr(pud)

#undef pud_free_tlb
#define pud_free_tlb(tlb, x)            do { } while (0)
#define pud_free(mm, x)                 do { } while (0)
#define __pud_free_tlb(tlb, x)          do { } while (0)

#undef  pud_addr_end
#define pud_addr_end(addr, end)         (end)

#endif