diff options
Diffstat (limited to 'include/asm-x86/e820_64.h')
| -rw-r--r-- | include/asm-x86/e820_64.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-x86/e820_64.h b/include/asm-x86/e820_64.h new file mode 100644 index 00000000000..0bd4787a5d5 --- /dev/null +++ b/include/asm-x86/e820_64.h @@ -0,0 +1,41 @@ +/* + * structures and definitions for the int 15, ax=e820 memory map + * scheme. + * + * In a nutshell, setup.S populates a scratch table in the + * empty_zero_block that contains a list of usable address/size + * duples. setup.c, this information is transferred into the e820map, + * and in init.c/numa.c, that new information is used to mark pages + * reserved or not. + */ +#ifndef __E820_HEADER +#define __E820_HEADER + +#ifndef __ASSEMBLY__ +extern unsigned long find_e820_area(unsigned long start, unsigned long end, + unsigned size); +extern void add_memory_region(unsigned long start, unsigned long size, + int type); +extern void setup_memory_region(void); +extern void contig_e820_setup(void); +extern unsigned long e820_end_of_ram(void); +extern void e820_reserve_resources(void); +extern void e820_mark_nosave_regions(void); +extern void e820_print_map(char *who); +extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); +extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); +extern unsigned long e820_hole_size(unsigned long start, unsigned long end); + +extern void e820_setup_gap(void); +extern void e820_register_active_regions(int nid, + unsigned long start_pfn, unsigned long end_pfn); + +extern void finish_e820_parsing(void); + +extern struct e820map e820; + +extern unsigned ebda_addr, ebda_size; +extern unsigned long nodemap_addr, nodemap_size; +#endif/*!__ASSEMBLY__*/ + +#endif/*__E820_HEADER*/ |