linux/include/asm-x86/e820_64.h
Bernhard Walle c9cce83dd1 x86: remove extern declarations for code, data, bss resources
This patch removes the extern struct resource declarations for
data_resource, code_resource and bss_resource on x86 and declares that
three structures as static as done on other architectures like IA64.

On i386, these structures are moved to setup_32.c (from e820_32.c) because
that's code that is not specific to e820 and also required on EFI systems.
That makes the "extern" reference superfluous.

On x86_64, data_resource, code_resource and bss_resource are passed to
e820_reserve_resources() as arguments just as done on i386 and IA64.  That
also avoids the "extern" reference and it's possible to make it static.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 13:30:32 +01:00

43 lines
1.5 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 size);
extern void add_memory_region(unsigned long start, unsigned long size,
int 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(struct resource *code_resource,
struct resource *data_resource, struct resource *bss_resource);
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 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 unsigned ebda_addr, ebda_size;
extern unsigned long nodemap_addr, nodemap_size;
#endif/*!__ASSEMBLY__*/
#endif/*__E820_HEADER*/