Commit | Line | Data |
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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, arch/i386/boot/setup.S populates a scratch table | |
6 | * in the empty_zero_block that contains a list of usable address/size | |
7 | * duples. In arch/i386/kernel/setup.c, this information is | |
8 | * transferred into the e820map, and in arch/i386/mm/init.c, that | |
9 | * new information is used to mark pages reserved or not. | |
10 | * | |
11 | */ | |
12 | #ifndef __E820_HEADER | |
13 | #define __E820_HEADER | |
14 | ||
c9cce83d BW |
15 | #include <linux/ioport.h> |
16 | ||
1da177e4 LT |
17 | #define HIGH_MEMORY (1024*1024) |
18 | ||
19 | #ifndef __ASSEMBLY__ | |
20 | ||
1da177e4 | 21 | extern struct e820map e820; |
093af8d7 | 22 | extern void update_e820(void); |
95222368 AV |
23 | |
24 | extern int e820_all_mapped(unsigned long start, unsigned long end, | |
25 | unsigned type); | |
b92e9fac | 26 | extern int e820_any_mapped(u64 start, u64 end, unsigned type); |
fa5c4639 | 27 | extern void propagate_e820_map(void); |
b5b24057 | 28 | extern void register_bootmem_low_pages(unsigned long max_low_pfn); |
093af8d7 YL |
29 | extern void add_memory_region(unsigned long long start, |
30 | unsigned long long size, int type); | |
5dca6a1b YL |
31 | extern void update_memory_range(u64 start, u64 size, unsigned old_type, |
32 | unsigned new_type); | |
5c95da9f | 33 | extern void e820_register_memory(void); |
cef518e8 | 34 | extern void limit_regions(unsigned long long size); |
35 | extern void print_memory_map(char *who); | |
2215e69d | 36 | extern void init_iomem_resources(struct resource *code_resource, |
1257d6e0 JP |
37 | struct resource *data_resource, |
38 | struct resource *bss_resource); | |
95222368 | 39 | |
b0cb1a19 | 40 | #if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION) |
1c10070a RW |
41 | extern void e820_mark_nosave_regions(void); |
42 | #else | |
43 | static inline void e820_mark_nosave_regions(void) | |
44 | { | |
45 | } | |
46 | #endif | |
47 | ||
c9cce83d | 48 | |
1da177e4 | 49 | #endif/*!__ASSEMBLY__*/ |
1da177e4 | 50 | #endif/*__E820_HEADER*/ |