projects / deliverable / linux.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, 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*/ |