1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _4LEVEL_FIXUP_H 3 #define _4LEVEL_FIXUP_H 4 5 #define __ARCH_HAS_4LEVEL_HACK 6 #define __PAGETABLE_PUD_FOLDED 1 7 8 #define PUD_SHIFT PGDIR_SHIFT 9 #define PUD_SIZE PGDIR_SIZE 10 #define PUD_MASK PGDIR_MASK 11 #define PTRS_PER_PUD 1 12 13 #define pud_t pgd_t 14 15 #define pmd_alloc(mm, pud, address) \ 16 ((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \ 17 NULL: pmd_offset(pud, address)) 18 19 #define pud_offset(pgd, start) (pgd) 20 #define pud_none(pud) 0 21 #define pud_bad(pud) 0 22 #define pud_present(pud) 1 23 #define pud_ERROR(pud) do { } while (0) 24 #define pud_clear(pud) pgd_clear(pud) 25 #define pud_val(pud) pgd_val(pud) 26 #define pud_populate(mm, pud, pmd) pgd_populate(mm, pud, pmd) 27 #define pud_page(pud) pgd_page(pud) 28 #define pud_page_vaddr(pud) pgd_page_vaddr(pud) 29 30 #undef pud_free_tlb 31 #define pud_free_tlb(tlb, x, addr) do { } while (0) 32 #define pud_free(mm, x) do { } while (0) 33 #define __pud_free_tlb(tlb, x, addr) do { } while (0) 34 35 #undef pud_addr_end 36 #define pud_addr_end(addr, end) (end) 37 38 #include <asm-generic/5level-fixup.h> 39 40 #endif 41