projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fb355149 JF |
1 | #ifndef _ASM_X86_PGTABLE_64_DEFS_H |
| 2 | #define _ASM_X86_PGTABLE_64_DEFS_H | |
| 3 | ||
| 54321d94 JF |
4 | #ifndef __ASSEMBLY__ |
| 5 | #include <linux/types.h> | |
| 6 | ||
| 7 | /* | |
| 8 | * These are used to make use of C type-checking.. | |
| 9 | */ | |
| 10 | typedef unsigned long pteval_t; | |
| 11 | typedef unsigned long pmdval_t; | |
| 12 | typedef unsigned long pudval_t; | |
| 13 | typedef unsigned long pgdval_t; | |
| 14 | typedef unsigned long pgprotval_t; | |
| 15 | ||
| 16 | typedef struct { pteval_t pte; } pte_t; | |
| 17 | ||
| 18 | #endif /* !__ASSEMBLY__ */ | |
| 19 | ||
| fb355149 | 20 | #define SHARED_KERNEL_PMD 0 |
| 9b3651cb | 21 | #define PAGETABLE_LEVELS 4 |
| fb355149 JF |
22 | |
| 23 | /* | |
| 24 | * PGDIR_SHIFT determines what a top-level page table entry can map | |
| 25 | */ | |
| 26 | #define PGDIR_SHIFT 39 | |
| 27 | #define PTRS_PER_PGD 512 | |
| 28 | ||
| 29 | /* | |
| 30 | * 3rd level page | |
| 31 | */ | |
| 32 | #define PUD_SHIFT 30 | |
| 33 | #define PTRS_PER_PUD 512 | |
| 34 | ||
| 35 | /* | |
| 36 | * PMD_SHIFT determines the size of the area a middle-level | |
| 37 | * page table can map | |
| 38 | */ | |
| 39 | #define PMD_SHIFT 21 | |
| 40 | #define PTRS_PER_PMD 512 | |
| 41 | ||
| 42 | /* | |
| 43 | * entries per page directory level | |
| 44 | */ | |
| 45 | #define PTRS_PER_PTE 512 | |
| 46 | ||
| 47 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) | |
| 48 | #define PMD_MASK (~(PMD_SIZE - 1)) | |
| 49 | #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) | |
| 50 | #define PUD_MASK (~(PUD_SIZE - 1)) | |
| 51 | #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) | |
| 52 | #define PGDIR_MASK (~(PGDIR_SIZE - 1)) | |
| 53 | ||
| c898faf9 | 54 | /* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */ |
| fb355149 | 55 | #define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL) |
| c898faf9 RR |
56 | #define VMALLOC_START _AC(0xffffc90000000000, UL) |
| 57 | #define VMALLOC_END _AC(0xffffe8ffffffffff, UL) | |
| 58 | #define VMEMMAP_START _AC(0xffffea0000000000, UL) | |
| fb355149 JF |
59 | #define MODULES_VADDR _AC(0xffffffffa0000000, UL) |
| 60 | #define MODULES_END _AC(0xffffffffff000000, UL) | |
| 61 | #define MODULES_LEN (MODULES_END - MODULES_VADDR) | |
| 62 | ||
| 63 | #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ |