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review.shift-gmbh.com / SHIFTPHONES / android_kernel_shift_sdm845 / 20c79e785ae3f813310261dde81b29ab0c3e28b4 / . / include / asm-x86 / e820_64.h
blob: 71c4d685d30d894ad1d1700bdbde2ea468f3e8d3 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 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 Wallec9cce832008-01-30 13:30:32 +0100[diff] [blame]14#include <linux/ioport.h>
15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]16#ifndef __ASSEMBLY__
Joe Perches86bbc832008-03-23 01:02:05 -0700[diff] [blame]17extern unsigned long find_e820_area(unsigned long start, unsigned long end,
Yinghai Lu48c508b2008-04-17 17:40:45 +0200[diff] [blame]18 unsigned long size, unsigned long align);
Yinghai Lu272b9ca2008-03-20 23:58:33 -0700[diff] [blame]19extern unsigned long find_e820_area_size(unsigned long start,
20 unsigned long *sizep,
21 unsigned long align);
Joe Perches86bbc832008-03-23 01:02:05 -0700[diff] [blame]22extern void add_memory_region(unsigned long start, unsigned long size,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]23 int type);
Yinghai Lu5dca6a12008-03-18 16:44:19 -0700[diff] [blame]24extern void update_memory_range(u64 start, u64 size, unsigned old_type,
25 unsigned new_type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]26extern void setup_memory_region(void);
Joe Perches86bbc832008-03-23 01:02:05 -0700[diff] [blame]27extern void contig_e820_setup(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]28extern unsigned long e820_end_of_ram(void);
Yinghai Lu3def3d62008-02-22 17:07:16 -0800[diff] [blame]29extern void e820_reserve_resources(void);
Rafael J. Wysockie8eff5a2006-09-25 23:32:46 -0700[diff] [blame]30extern void e820_mark_nosave_regions(void);
Joe Perches86bbc832008-03-23 01:02:05 -0700[diff] [blame]31extern int e820_any_mapped(unsigned long start, unsigned long end,
32 unsigned type);
33extern int e820_all_mapped(unsigned long start, unsigned long end,
34 unsigned type);
Ingo Molnar306c1422008-01-30 13:33:08 +0100[diff] [blame]35extern int e820_any_non_reserved(unsigned long start, unsigned long end);
36extern int is_memory_any_valid(unsigned long start, unsigned long end);
37extern int e820_all_non_reserved(unsigned long start, unsigned long end);
38extern int is_memory_all_valid(unsigned long start, unsigned long end);
Rohit Seth53fee042007-02-13 13:26:22 +0100[diff] [blame]39extern unsigned long e820_hole_size(unsigned long start, unsigned long end);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]40
Andi Kleena1e97782005-04-16 15:25:12 -0700[diff] [blame]41extern void e820_setup_gap(void);
Joe Perches86bbc832008-03-23 01:02:05 -0700[diff] [blame]42extern void e820_register_active_regions(int nid, unsigned long start_pfn,
43 unsigned long end_pfn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]44
Andi Kleen2c8c0e62006-09-26 10:52:32 +0200[diff] [blame]45extern void finish_e820_parsing(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]46
47extern struct e820map e820;
Yinghai Luaaf23042008-01-30 13:33:09 +0100[diff] [blame]48extern void update_e820(void);
Andi Kleenac71d122006-05-08 15:17:28 +0200[diff] [blame]49
Yinghai Lu25eff8d2008-02-01 17:49:41 +0100[diff] [blame]50extern void reserve_early(unsigned long start, unsigned long end, char *name);
Huang, Ying50eae2a2008-03-28 10:49:42 +0800[diff] [blame]51extern void free_early(unsigned long start, unsigned long end);
Yinghai Lu1a27fc02008-03-18 12:52:37 -0700[diff] [blame]52extern void early_res_to_bootmem(unsigned long start, unsigned long end);
Ingo Molnar306c1422008-01-30 13:33:08 +0100[diff] [blame]53
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]54#endif/*!__ASSEMBLY__*/
55
56#endif/*__E820_HEADER*/