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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__ |
1da177e4 LT |
17 | extern unsigned long find_e820_area(unsigned long start, unsigned long end, |
18 | unsigned size); | |
19 | extern void add_memory_region(unsigned long start, unsigned long size, | |
20 | int type); | |
21 | extern void setup_memory_region(void); | |
22 | extern void contig_e820_setup(void); | |
23 | extern unsigned long e820_end_of_ram(void); | |
c9cce83d BW |
24 | extern void e820_reserve_resources(struct resource *code_resource, |
25 | struct resource *data_resource, struct resource *bss_resource); | |
e8eff5ac | 26 | extern void e820_mark_nosave_regions(void); |
eee5a9fa | 27 | extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); |
95222368 | 28 | extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); |
53fee04f | 29 | extern unsigned long e820_hole_size(unsigned long start, unsigned long end); |
1da177e4 | 30 | |
a1e97782 | 31 | extern void e820_setup_gap(void); |
5cb248ab MG |
32 | extern void e820_register_active_regions(int nid, |
33 | unsigned long start_pfn, unsigned long end_pfn); | |
1da177e4 | 34 | |
2c8c0e6b | 35 | extern void finish_e820_parsing(void); |
1da177e4 LT |
36 | |
37 | extern struct e820map e820; | |
ac71d12c AK |
38 | |
39 | extern unsigned ebda_addr, ebda_size; | |
076422d2 | 40 | extern unsigned long nodemap_addr, nodemap_size; |
1da177e4 LT |
41 | #endif/*!__ASSEMBLY__*/ |
42 | ||
43 | #endif/*__E820_HEADER*/ |