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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 | 17 | extern void setup_memory_region(void); |
86bbc835 | 18 | extern void contig_e820_setup(void); |
1da177e4 | 19 | extern unsigned long e820_end_of_ram(void); |
3def3d6d | 20 | extern void e820_reserve_resources(void); |
e8eff5ac | 21 | extern void e820_mark_nosave_regions(void); |
306c142f IM |
22 | extern int e820_any_non_reserved(unsigned long start, unsigned long end); |
23 | extern int is_memory_any_valid(unsigned long start, unsigned long end); | |
24 | extern int e820_all_non_reserved(unsigned long start, unsigned long end); | |
25 | extern int is_memory_all_valid(unsigned long start, unsigned long end); | |
53fee04f | 26 | extern unsigned long e820_hole_size(unsigned long start, unsigned long end); |
1da177e4 | 27 | |
86bbc835 JP |
28 | extern void e820_register_active_regions(int nid, unsigned long start_pfn, |
29 | unsigned long end_pfn); | |
1da177e4 | 30 | |
2c8c0e6b | 31 | extern void finish_e820_parsing(void); |
1da177e4 | 32 | |
1da177e4 LT |
33 | #endif/*!__ASSEMBLY__*/ |
34 | ||
35 | #endif/*__E820_HEADER*/ |