mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 06:24:53 +08:00
a8874e7e8a
Change the currently empty defines for __PAGETABLE_PMD_FOLDED, __PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1. This makes it possible to use __is_defined() to test if the preprocessor define exists. Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _4LEVEL_FIXUP_H
|
|
#define _4LEVEL_FIXUP_H
|
|
|
|
#define __ARCH_HAS_4LEVEL_HACK
|
|
#define __PAGETABLE_PUD_FOLDED 1
|
|
|
|
#define PUD_SHIFT PGDIR_SHIFT
|
|
#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_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, addr) do { } while (0)
|
|
#define pud_free(mm, x) do { } while (0)
|
|
#define __pud_free_tlb(tlb, x, addr) do { } while (0)
|
|
|
|
#undef pud_addr_end
|
|
#define pud_addr_end(addr, end) (end)
|
|
|
|
#include <asm-generic/5level-fixup.h>
|
|
|
|
#endif
|