projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 51c78eb3 JF |
1 | #ifndef _ASM_X86_PAGE_64_DEFS_H |
| 2 | #define _ASM_X86_PAGE_64_DEFS_H | |
| 3 | ||
| 51c78eb3 JF |
4 | #define THREAD_ORDER 1 |
| 5 | #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) | |
| 6 | #define CURRENT_MASK (~(THREAD_SIZE - 1)) | |
| 7 | ||
| 8 | #define EXCEPTION_STACK_ORDER 0 | |
| 9 | #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER) | |
| 10 | ||
| 11 | #define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1) | |
| 12 | #define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER) | |
| 13 | ||
| 14 | #define IRQ_STACK_ORDER 2 | |
| 15 | #define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER) | |
| 16 | ||
| 17 | #define STACKFAULT_STACK 1 | |
| 18 | #define DOUBLEFAULT_STACK 2 | |
| 19 | #define NMI_STACK 3 | |
| 20 | #define DEBUG_STACK 4 | |
| 21 | #define MCE_STACK 5 | |
| 22 | #define N_EXCEPTION_STACKS 5 /* hw limit: 7 */ | |
| 23 | ||
| 24 | #define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT) | |
| 25 | #define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1)) | |
| 26 | ||
| 27 | /* | |
| 28 | * Set __PAGE_OFFSET to the most negative possible address + | |
| 29 | * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a | |
| 30 | * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's | |
| 31 | * what Xen requires. | |
| 32 | */ | |
| 33 | #define __PAGE_OFFSET _AC(0xffff880000000000, UL) | |
| 34 | ||
| 35 | #define __PHYSICAL_START CONFIG_PHYSICAL_START | |
| 36 | #define __KERNEL_ALIGN 0x200000 | |
| 37 | ||
| 38 | /* | |
| 39 | * Make sure kernel is aligned to 2MB address. Catching it at compile | |
| 40 | * time is better. Change your config file and compile the kernel | |
| 41 | * for a 2MB aligned address (CONFIG_PHYSICAL_START) | |
| 42 | */ | |
| 43 | #if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0 | |
| 44 | #error "CONFIG_PHYSICAL_START must be a multiple of 2MB" | |
| 45 | #endif | |
| 46 | ||
| 47 | #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) | |
| 48 | #define __START_KERNEL_map _AC(0xffffffff80000000, UL) | |
| 49 | ||
| 50 | /* See Documentation/x86_64/mm.txt for a description of the memory map. */ | |
| 51 | #define __PHYSICAL_MASK_SHIFT 46 | |
| 52 | #define __VIRTUAL_MASK_SHIFT 48 | |
| 53 | ||
| 54 | /* | |
| 55 | * Kernel image size is limited to 512 MB (see level2_kernel_pgt in | |
| 56 | * arch/x86/kernel/head_64.S), and it is mapped here: | |
| 57 | */ | |
| 58 | #define KERNEL_IMAGE_SIZE (512 * 1024 * 1024) | |
| 59 | #define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL) | |
| 60 | ||
| 61 | #ifndef __ASSEMBLY__ | |
| 62 | void clear_page(void *page); | |
| 63 | void copy_page(void *to, void *from); | |
| 64 | ||
| 65 | /* duplicated to the one in bootmem.h */ | |
| 66 | extern unsigned long max_pfn; | |
| 67 | extern unsigned long phys_base; | |
| 68 | ||
| 69 | extern unsigned long __phys_addr(unsigned long); | |
| 70 | #define __phys_reloc_hide(x) (x) | |
| 71 | ||
| 51c78eb3 JF |
72 | #define vmemmap ((struct page *)VMEMMAP_START) |
| 73 | ||
| 74 | extern unsigned long init_memory_mapping(unsigned long start, | |
| 75 | unsigned long end); | |
| 76 | ||
| 77 | extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn); | |
| 78 | extern void free_initmem(void); | |
| 79 | ||
| 80 | extern void init_extra_mapping_uc(unsigned long phys, unsigned long size); | |
| 81 | extern void init_extra_mapping_wb(unsigned long phys, unsigned long size); | |
| 82 | ||
| 83 | #endif /* !__ASSEMBLY__ */ | |
| 84 | ||
| 85 | #ifdef CONFIG_FLATMEM | |
| 86 | #define pfn_valid(pfn) ((pfn) < max_pfn) | |
| 87 | #endif | |
| 88 | ||
| 89 | #endif /* _ASM_X86_PAGE_64_DEFS_H */ |