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File: [Development] / linux-2.6-xfs / include / asm-x86 / bios_ebda.h (download)

Revision 1.2, Fri Oct 3 17:46:45 2008 UTC (9 years ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +2 -0 lines 

Merge up to 2.6.27-rc8
Merge of 2.6.x-xfs-melb:linux:32254b by kenmcd.

#ifndef _MACH_BIOS_EBDA_H
#define _MACH_BIOS_EBDA_H

#include <asm/io.h>

/*
 * there is a real-mode segmented pointer pointing to the
 * 4K EBDA area at 0x40E.
 */
static inline unsigned int get_bios_ebda(void)
{
	unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
	address <<= 4;
	return address;	/* 0 means none */
}

void reserve_ebda_region(void);

#endif /* _MACH_BIOS_EBDA_H */