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 | ||
| 8170e6be PA |
4 | #include <asm/sparsemem.h> |
| 5 | ||
| 54321d94 JF |
6 | #ifndef __ASSEMBLY__ |
| 7 | #include <linux/types.h> | |
| 8 | ||
| 9 | /* | |
| 10 | * These are used to make use of C type-checking.. | |
| 11 | */ | |
| 12 | typedef unsigned long pteval_t; | |
| 13 | typedef unsigned long pmdval_t; | |
| 14 | typedef unsigned long pudval_t; | |
| 15 | typedef unsigned long pgdval_t; | |
| 16 | typedef unsigned long pgprotval_t; | |
| 17 | ||
| 18 | typedef struct { pteval_t pte; } pte_t; | |
| 19 | ||
| 20 | #endif /* !__ASSEMBLY__ */ | |
| 21 | ||
| fb355149 | 22 | #define SHARED_KERNEL_PMD 0 |
| 9b3651cb | 23 | #define PAGETABLE_LEVELS 4 |
| fb355149 JF |
24 | |
| 25 | /* | |
| 26 | * PGDIR_SHIFT determines what a top-level page table entry can map | |
| 27 | */ | |
| 28 | #define PGDIR_SHIFT 39 | |
| 29 | #define PTRS_PER_PGD 512 | |
| 30 | ||
| 31 | /* | |
| 32 | * 3rd level page | |
| 33 | */ | |
| 34 | #define PUD_SHIFT 30 | |
| 35 | #define PTRS_PER_PUD 512 | |
| 36 | ||
| 37 | /* | |
| 38 | * PMD_SHIFT determines the size of the area a middle-level | |
| 39 | * page table can map | |
| 40 | */ | |
| 41 | #define PMD_SHIFT 21 | |
| 42 | #define PTRS_PER_PMD 512 | |
| 43 | ||
| 44 | /* | |
| 45 | * entries per page directory level | |
| 46 | */ | |
| 47 | #define PTRS_PER_PTE 512 | |
| 48 | ||
| 49 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) | |
| 50 | #define PMD_MASK (~(PMD_SIZE - 1)) | |
| 51 | #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) | |
| 52 | #define PUD_MASK (~(PUD_SIZE - 1)) | |
| 53 | #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) | |
| 54 | #define PGDIR_MASK (~(PGDIR_SIZE - 1)) | |
| 55 | ||
| c898faf9 | 56 | /* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */ |
| fb355149 | 57 | #define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL) |
| c898faf9 RR |
58 | #define VMALLOC_START _AC(0xffffc90000000000, UL) |
| 59 | #define VMALLOC_END _AC(0xffffe8ffffffffff, UL) | |
| 60 | #define VMEMMAP_START _AC(0xffffea0000000000, UL) | |
| 6145cfe3 | 61 | #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE) |
| fb355149 JF |
62 | #define MODULES_END _AC(0xffffffffff000000, UL) |
| 63 | #define MODULES_LEN (MODULES_END - MODULES_VADDR) | |
| 3891a04a PA |
64 | #define ESPFIX_PGD_ENTRY _AC(-2, UL) |
| 65 | #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT) | |
| fb355149 | 66 | |
| 8170e6be PA |
67 | #define EARLY_DYNAMIC_PAGE_TABLES 64 |
| 68 | ||
| fb355149 | 69 | #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ |