projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * structures and definitions for the int 15, ax=e820 memory map | |
| 3 | * scheme. | |
| 4 | * | |
| 5 | * In a nutshell, setup.S populates a scratch table in the | |
| 6 | * empty_zero_block that contains a list of usable address/size | |
| 7 | * duples. setup.c, this information is transferred into the e820map, | |
| 8 | * and in init.c/numa.c, that new information is used to mark pages | |
| 9 | * reserved or not. | |
| 10 | */ | |
| 11 | #ifndef __E820_HEADER | |
| 12 | #define __E820_HEADER | |
| 13 | ||
| c9cce83d BW |
14 | #include <linux/ioport.h> |
| 15 | ||
| 1da177e4 | 16 | #ifndef __ASSEMBLY__ |
| 86bbc835 | 17 | extern unsigned long find_e820_area(unsigned long start, unsigned long end, |
| 48c508b3 | 18 | unsigned long size, unsigned long align); |
| 272b9cad YL |
19 | extern unsigned long find_e820_area_size(unsigned long start, |
| 20 | unsigned long *sizep, | |
| 21 | unsigned long align); | |
| 86bbc835 | 22 | extern void add_memory_region(unsigned long start, unsigned long size, |
| 1da177e4 | 23 | int type); |
| 5dca6a1b YL |
24 | extern void update_memory_range(u64 start, u64 size, unsigned old_type, |
| 25 | unsigned new_type); | |
| 1da177e4 | 26 | extern void setup_memory_region(void); |
| 86bbc835 | 27 | extern void contig_e820_setup(void); |
| 1da177e4 | 28 | extern unsigned long e820_end_of_ram(void); |
| 3def3d6d | 29 | extern void e820_reserve_resources(void); |
| e8eff5ac | 30 | extern void e820_mark_nosave_regions(void); |
| 86bbc835 JP |
31 | extern int e820_any_mapped(unsigned long start, unsigned long end, |
| 32 | unsigned type); | |
| 33 | extern int e820_all_mapped(unsigned long start, unsigned long end, | |
| 34 | unsigned type); | |
| 306c142f IM |
35 | extern int e820_any_non_reserved(unsigned long start, unsigned long end); |
| 36 | extern int is_memory_any_valid(unsigned long start, unsigned long end); | |
| 37 | extern int e820_all_non_reserved(unsigned long start, unsigned long end); | |
| 38 | extern int is_memory_all_valid(unsigned long start, unsigned long end); | |
| 53fee04f | 39 | extern unsigned long e820_hole_size(unsigned long start, unsigned long end); |
| 1da177e4 | 40 | |
| a1e97782 | 41 | extern void e820_setup_gap(void); |
| 86bbc835 JP |
42 | extern void e820_register_active_regions(int nid, unsigned long start_pfn, |
| 43 | unsigned long end_pfn); | |
| 1da177e4 | 44 | |
| 2c8c0e6b | 45 | extern void finish_e820_parsing(void); |
| 1da177e4 LT |
46 | |
| 47 | extern struct e820map e820; | |
| aaf23042 | 48 | extern void update_e820(void); |
| ac71d12c | 49 | |
| 25eff8d4 | 50 | extern void reserve_early(unsigned long start, unsigned long end, char *name); |
| 50eae2a7 | 51 | extern void free_early(unsigned long start, unsigned long end); |
| 1a27fc0a | 52 | extern void early_res_to_bootmem(unsigned long start, unsigned long end); |
| 306c142f | 53 | |
| 1da177e4 LT |
54 | #endif/*!__ASSEMBLY__*/ |
| 55 | ||
| 56 | #endif/*__E820_HEADER*/ |