57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
/*
|
|
* 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
|
|
|
|
#include <linux/ioport.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
extern unsigned long find_e820_area(unsigned long start, unsigned long end,
|
|
unsigned long size, unsigned long align);
|
|
extern unsigned long find_e820_area_size(unsigned long start,
|
|
unsigned long *sizep,
|
|
unsigned long align);
|
|
extern void add_memory_region(unsigned long start, unsigned long size,
|
|
int type);
|
|
extern void update_memory_range(u64 start, u64 size, unsigned old_type,
|
|
unsigned new_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 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 int e820_any_non_reserved(unsigned long start, unsigned long end);
|
|
extern int is_memory_any_valid(unsigned long start, unsigned long end);
|
|
extern int e820_all_non_reserved(unsigned long start, unsigned long end);
|
|
extern int is_memory_all_valid(unsigned long start, unsigned long end);
|
|
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 void update_e820(void);
|
|
|
|
extern void reserve_early(unsigned long start, unsigned long end, char *name);
|
|
extern void free_early(unsigned long start, unsigned long end);
|
|
extern void early_res_to_bootmem(unsigned long start, unsigned long end);
|
|
|
|
#endif/*!__ASSEMBLY__*/
|
|
|
|
#endif/*__E820_HEADER*/
|