| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Bernhard Walle | c9cce83 | 2008-01-30 13:30:32 +0100 | [diff] [blame] | 14 | #include <linux/ioport.h> |
| 15 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #ifndef __ASSEMBLY__ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | extern unsigned long find_e820_area(unsigned long start, unsigned long end, |
| Yinghai Lu | 24a5da7 | 2008-02-01 17:49:41 +0100 | [diff] [blame] | 18 | unsigned size, unsigned long align); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
| Bernhard Walle | c9cce83 | 2008-01-30 13:30:32 +0100 | [diff] [blame] | 24 | extern void e820_reserve_resources(struct resource *code_resource, |
| 25 | struct resource *data_resource, struct resource *bss_resource); |
| Rafael J. Wysocki | e8eff5a | 2006-09-25 23:32:46 -0700 | [diff] [blame] | 26 | extern void e820_mark_nosave_regions(void); |
| Arjan van de Ven | eee5a9f | 2006-04-07 19:49:24 +0200 | [diff] [blame] | 27 | extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); |
| Arjan van de Ven | 9522236 | 2006-04-07 19:49:27 +0200 | [diff] [blame] | 28 | extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); |
| Ingo Molnar | 306c142 | 2008-01-30 13:33:08 +0100 | [diff] [blame] | 29 | extern int e820_any_non_reserved(unsigned long start, unsigned long end); |
| 30 | extern int is_memory_any_valid(unsigned long start, unsigned long end); |
| 31 | extern int e820_all_non_reserved(unsigned long start, unsigned long end); |
| 32 | extern int is_memory_all_valid(unsigned long start, unsigned long end); |
| Rohit Seth | 53fee04 | 2007-02-13 13:26:22 +0100 | [diff] [blame] | 33 | extern unsigned long e820_hole_size(unsigned long start, unsigned long end); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| Andi Kleen | a1e9778 | 2005-04-16 15:25:12 -0700 | [diff] [blame] | 35 | extern void e820_setup_gap(void); |
| Mel Gorman | 5cb248a | 2006-09-27 01:49:52 -0700 | [diff] [blame] | 36 | extern void e820_register_active_regions(int nid, |
| 37 | unsigned long start_pfn, unsigned long end_pfn); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
| Andi Kleen | 2c8c0e6 | 2006-09-26 10:52:32 +0200 | [diff] [blame] | 39 | extern void finish_e820_parsing(void); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | extern struct e820map e820; |
| Yinghai Lu | aaf2304 | 2008-01-30 13:33:09 +0100 | [diff] [blame] | 42 | extern void update_e820(void); |
| Andi Kleen | ac71d12 | 2006-05-08 15:17:28 +0200 | [diff] [blame] | 43 | |
| Yinghai Lu | 25eff8d | 2008-02-01 17:49:41 +0100 | [diff] [blame] | 44 | extern void reserve_early(unsigned long start, unsigned long end, char *name); |
| Andi Kleen | 7517527 | 2008-01-30 13:33:17 +0100 | [diff] [blame] | 45 | extern void early_res_to_bootmem(void); |
| Ingo Molnar | 306c142 | 2008-01-30 13:33:08 +0100 | [diff] [blame] | 46 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #endif/*!__ASSEMBLY__*/ |
| 48 | |
| 49 | #endif/*__E820_HEADER*/ |