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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
| commit | cf816ecb533ab96b883dfdc0db174598b5b5c4d2 (patch) | |
| tree | 1b7705db288ae2917105e624b01fdf81e0882bf1 /include/asm-x86/bios_ebda.h | |
| parent | adf6d34e460387ee3e8f1e1875d52bff51212c7d (diff) | |
| parent | 15f7d677ccff6f0f5de8a1ee43a792567e9f9de9 (diff) | |
| download | linux-fsl-qoriq-cf816ecb533ab96b883dfdc0db174598b5b5c4d2.tar.xz | |
Merge branch 'merge-fixes' into devel
Diffstat (limited to 'include/asm-x86/bios_ebda.h')
| -rw-r--r-- | include/asm-x86/bios_ebda.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-x86/bios_ebda.h b/include/asm-x86/bios_ebda.h new file mode 100644 index 0000000..9cbd9a6 --- /dev/null +++ b/include/asm-x86/bios_ebda.h @@ -0,0 +1,15 @@ +#ifndef _MACH_BIOS_EBDA_H +#define _MACH_BIOS_EBDA_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 */ +} + +#endif /* _MACH_BIOS_EBDA_H */ |