android_kernel_xiaomi_sm8350/include/asm-x86/bios_ebda.h
Huang, Ying 0c51a965ed x86: extract common part of head32.c and head64.c into head.c
This patch extracts the common part of head32.c and head64.c into head.c.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: andi@firstfloor.org
Cc: mingo@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-06-05 15:10:02 +02:00

20 lines
397 B
C

#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 */