2 * structures and definitions for the int 15, ax=e820 memory map
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.
15 #include <linux/ioport.h>
17 #define HIGH_MEMORY (1024*1024)
21 extern void setup_memory_map(void);
22 extern void finish_e820_parsing(void);
24 extern struct e820map e820;
25 extern void update_e820(void);
27 extern int e820_all_mapped(unsigned long start, unsigned long end,
29 extern int e820_any_mapped(u64 start, u64 end, unsigned type);
30 extern void propagate_e820_map(void);
31 extern void register_bootmem_low_pages(unsigned long max_low_pfn);
32 extern void add_memory_region(unsigned long long start,
33 unsigned long long size, int type);
34 extern void update_memory_range(u64 start, u64 size, unsigned old_type,
36 extern void e820_register_memory(void);
37 extern void limit_regions(unsigned long long size);
38 extern void init_iomem_resources(struct resource *code_resource,
39 struct resource *data_resource,
40 struct resource *bss_resource);
42 #if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
43 extern void e820_mark_nosave_regions(void);
45 static inline void e820_mark_nosave_regions(void)
51 #endif/*!__ASSEMBLY__*/
52 #endif/*__E820_HEADER*/