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 38