From 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:20:03 +0200 Subject: 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 Signed-off-by: Ingo Molnar --- include/asm-x86/e820_32.h | 60 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 include/asm-x86/e820_32.h (limited to 'include/asm-x86/e820_32.h') diff --git a/include/asm-x86/e820_32.h b/include/asm-x86/e820_32.h new file mode 100644 index 00000000000..cf67dbb1db7 --- /dev/null +++ b/include/asm-x86/e820_32.h @@ -0,0 +1,60 @@ +/* + * structures and definitions for the int 15, ax=e820 memory map + * scheme. + * + * In a nutshell, arch/i386/boot/setup.S populates a scratch table + * in the empty_zero_block that contains a list of usable address/size + * duples. In arch/i386/kernel/setup.c, this information is + * transferred into the e820map, and in arch/i386/mm/init.c, that + * new information is used to mark pages reserved or not. + * + */ +#ifndef __E820_HEADER +#define __E820_HEADER + +#define E820MAP 0x2d0 /* our map */ +#define E820MAX 128 /* number of entries in E820MAP */ +#define E820NR 0x1e8 /* # entries in E820MAP */ + +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 +#define E820_NVS 4 + +#define HIGH_MEMORY (1024*1024) + +#ifndef __ASSEMBLY__ + +struct e820entry { + u64 addr; /* start of memory segment */ + u64 size; /* size of memory segment */ + u32 type; /* type of memory segment */ +} __attribute__((packed)); + +struct e820map { + u32 nr_map; + struct e820entry map[E820MAX]; +}; + +extern struct e820map e820; + +extern int e820_all_mapped(unsigned long start, unsigned long end, + unsigned type); +extern int e820_any_mapped(u64 start, u64 end, unsigned type); +extern void find_max_pfn(void); +extern void register_bootmem_low_pages(unsigned long max_low_pfn); +extern void e820_register_memory(void); +extern void limit_regions(unsigned long long size); +extern void print_memory_map(char *who); + +#if defined(CONFIG_PM) && defined(CONFIG_HIBERNATION) +extern void e820_mark_nosave_regions(void); +#else +static inline void e820_mark_nosave_regions(void) +{ +} +#endif + +#endif/*!__ASSEMBLY__*/ + +#endif/*__E820_HEADER*/ -- cgit v1.2.3