aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-x86/e820_32.h
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/e820_32.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/e820_32.h')
-rw-r--r--include/asm-x86/e820_32.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h
new file mode 100644
index 000000000000..cf67dbb1db79
--- /dev/null
+++ b/include/asm-x86/e820_32.h
@@ -0,0 +1,60 @@
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#define E820MAP 0x2d0 /* our map */
16#define E820MAX 128 /* number of entries in E820MAP */
17#define E820NR 0x1e8 /* # entries in E820MAP */
18
19#define E820_RAM 1
20#define E820_RESERVED 2
21#define E820_ACPI 3
22#define E820_NVS 4
23
24#define HIGH_MEMORY (1024*1024)
25
26#ifndef __ASSEMBLY__
27
28struct e820entry {
29 u64 addr; /* start of memory segment */
30 u64 size; /* size of memory segment */
31 u32 type; /* type of memory segment */
32} __attribute__((packed));
33
34struct e820map {
35 u32 nr_map;
36 struct e820entry map[E820MAX];
37};
38
39extern struct e820map e820;
40
41extern int e820_all_mapped(unsigned long start, unsigned long end,
42 unsigned type);
43extern int e820_any_mapped(u64 start, u64 end, unsigned type);
44extern void find_max_pfn(void);
45extern void register_bootmem_low_pages(unsigned long max_low_pfn);
46extern void e820_register_memory(void);
47extern void limit_regions(unsigned long long size);
48extern void print_memory_map(char *who);
49
50#if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION)
51extern void e820_mark_nosave_regions(void);
52#else
53static inline void e820_mark_nosave_regions(void)
54{
55}
56#endif
57
58#endif/*!__ASSEMBLY__*/
59
60#endif/*__E820_HEADER*/