| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H |
| #define _ASM_X86_PGTABLE_2LEVEL_DEFS_H |
| |
| #ifndef __ASSEMBLY__ |
| #include <linux/types.h> |
| |
| typedef unsigned long pteval_t; |
| typedef unsigned long pmdval_t; |
| typedef unsigned long pudval_t; |
| typedef unsigned long p4dval_t; |
| typedef unsigned long pgdval_t; |
| typedef unsigned long pgprotval_t; |
| |
| typedef union { |
| pteval_t pte; |
| pteval_t pte_low; |
| } pte_t; |
| #endif /* !__ASSEMBLY__ */ |
| |
| #define SHARED_KERNEL_PMD 0 |
| |
| /* |
| * traditional i386 two-level paging structure: |
| */ |
| |
| #define PGDIR_SHIFT 22 |
| #define PTRS_PER_PGD 1024 |
| |
| |
| /* |
| * the i386 is two-level, so we don't really have any |
| * PMD directory physically. |
| */ |
| |
| #define PTRS_PER_PTE 1024 |
| |
| /* This covers all VMSPLIT_* and VMSPLIT_*_OPT variants */ |
| #define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT) |
| |
| #endif /* _ASM_X86_PGTABLE_2LEVEL_DEFS_H */ |
