projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_PAGE_64_H |
| 2 | #define _ASM_X86_PAGE_64_H | |
| 1da177e4 | 3 | |
| 51c78eb3 | 4 | #include <asm/page_64_types.h> |
| 83a5101b | 5 | |
| fb50b020 AD |
6 | #ifndef __ASSEMBLY__ |
| 7 | ||
| 8 | /* duplicated to the one in bootmem.h */ | |
| 9 | extern unsigned long max_pfn; | |
| 10 | extern unsigned long phys_base; | |
| 11 | ||
| 0bdf525f AD |
12 | static inline unsigned long __phys_addr_nodebug(unsigned long x) |
| 13 | { | |
| 14 | unsigned long y = x - __START_KERNEL_map; | |
| 15 | ||
| 16 | /* use the carry flag to determine if x was < __START_KERNEL_map */ | |
| 17 | x = y + ((x > y) ? phys_base : (__START_KERNEL_map - PAGE_OFFSET)); | |
| 18 | ||
| 19 | return x; | |
| 20 | } | |
| 21 | ||
| 22 | #ifdef CONFIG_DEBUG_VIRTUAL | |
| fb50b020 | 23 | extern unsigned long __phys_addr(unsigned long); |
| 7d74275d | 24 | extern unsigned long __phys_addr_symbol(unsigned long); |
| 0bdf525f AD |
25 | #else |
| 26 | #define __phys_addr(x) __phys_addr_nodebug(x) | |
| 7d74275d AD |
27 | #define __phys_addr_symbol(x) \ |
| 28 | ((unsigned long)(x) - __START_KERNEL_map + phys_base) | |
| 0bdf525f | 29 | #endif |
| fb50b020 AD |
30 | |
| 31 | #define __phys_reloc_hide(x) (x) | |
| 32 | ||
| 33 | #ifdef CONFIG_FLATMEM | |
| 34 | #define pfn_valid(pfn) ((pfn) < max_pfn) | |
| 35 | #endif | |
| 36 | ||
| 37 | void clear_page(void *page); | |
| 38 | void copy_page(void *to, void *from); | |
| 39 | ||
| 40 | #endif /* !__ASSEMBLY__ */ | |
| 41 | ||
| 1ad83c85 AL |
42 | #ifdef CONFIG_X86_VSYSCALL_EMULATION |
| 43 | # define __HAVE_ARCH_GATE_AREA 1 | |
| 44 | #endif | |
| a6c19dfe | 45 | |
| 1965aae3 | 46 | #endif /* _ASM_X86_PAGE_64_H */ |