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
15 #include <linux/ioport.h>
16
17 #define HIGH_MEMORY (1024*1024)
18
19 #ifndef __ASSEMBLY__
20
21 extern struct e820map e820;
22 extern void update_e820(void);
23
24 extern int e820_all_mapped(unsigned long start, unsigned long end,
25 unsigned type);
26 extern int e820_any_mapped(u64 start, u64 end, unsigned type);
27 extern void find_max_pfn(void);
28 extern void register_bootmem_low_pages(unsigned long max_low_pfn);
29 extern void add_memory_region(unsigned long long start,
30 unsigned long long size, int type);
31 extern void update_memory_range(u64 start, u64 size, unsigned old_type,
32 unsigned new_type);
33 extern void e820_register_memory(void);
34 extern void limit_regions(unsigned long long size);
35 extern void print_memory_map(char *who);
36 extern void init_iomem_resources(struct resource *code_resource,
37 struct resource *data_resource,
38 struct resource *bss_resource);
39
40 #if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
41 extern void e820_mark_nosave_regions(void);
42 #else
43 static inline void e820_mark_nosave_regions(void)
44 {
45 }
46 #endif
47
48
49 #endif/*!__ASSEMBLY__*/
50 #endif/*__E820_HEADER*/
51
|
This page was automatically generated by the
LXR engine.
|