1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
3 #define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
6 #include <linux/types.h>
8 typedef unsigned long pteval_t;
9 typedef unsigned long pmdval_t;
10 typedef unsigned long pudval_t;
11 typedef unsigned long p4dval_t;
12 typedef unsigned long pgdval_t;
13 typedef unsigned long pgprotval_t;
19 #endif /* !__ASSEMBLY__ */
21 #define SHARED_KERNEL_PMD 0
23 #define ARCH_PAGE_TABLE_SYNC_MASK PGTBL_PMD_MODIFIED
26 * traditional i386 two-level paging structure:
29 #define PGDIR_SHIFT 22
30 #define PTRS_PER_PGD 1024
34 * the i386 is two-level, so we don't really have any
35 * PMD directory physically.
38 #define PTRS_PER_PTE 1024
40 /* This covers all VMSPLIT_* and VMSPLIT_*_OPT variants */
41 #define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT)
43 #endif /* _ASM_X86_PGTABLE_2LEVEL_DEFS_H */