b278240839
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/*
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* structures and definitions for the int 15, ax=e820 memory map
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* scheme.
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*
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* In a nutshell, setup.S populates a scratch table in the
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* empty_zero_block that contains a list of usable address/size
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* duples. setup.c, this information is transferred into the e820map,
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* and in init.c/numa.c, that new information is used to mark pages
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* reserved or not.
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*/
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#ifndef __E820_HEADER
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#define __E820_HEADER
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#include <linux/mmzone.h>
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#define E820MAP 0x2d0 /* our map */
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#define E820MAX 128 /* number of entries in E820MAP */
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#define E820NR 0x1e8 /* # entries in E820MAP */
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#define E820_RAM 1
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#define E820_RESERVED 2
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#define E820_ACPI 3
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#define E820_NVS 4
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#ifndef __ASSEMBLY__
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struct e820entry {
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u64 addr; /* start of memory segment */
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u64 size; /* size of memory segment */
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u32 type; /* type of memory segment */
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} __attribute__((packed));
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struct e820map {
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int nr_map;
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struct e820entry map[E820MAX];
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};
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extern unsigned long find_e820_area(unsigned long start, unsigned long end,
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unsigned size);
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extern void add_memory_region(unsigned long start, unsigned long size,
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int type);
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extern void setup_memory_region(void);
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extern void contig_e820_setup(void);
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extern unsigned long e820_end_of_ram(void);
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extern void e820_reserve_resources(void);
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extern void e820_mark_nosave_regions(void);
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extern void e820_print_map(char *who);
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extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
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extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
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extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end);
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extern void e820_setup_gap(void);
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extern unsigned long e820_hole_size(unsigned long start_pfn,
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unsigned long end_pfn);
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extern void finish_e820_parsing(void);
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extern struct e820map e820;
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extern unsigned ebda_addr, ebda_size;
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#endif/*!__ASSEMBLY__*/
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#endif/*__E820_HEADER*/
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