diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-18 19:25:51 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-18 19:25:51 +0400 |
| commit | 9e9abecfc0ff3a9ad2ead954b37bbfcb863c775e (patch) | |
| tree | 0c3ffda953b82750638a06507591ad587b565ff2 /include/asm-x86/bios_ebda.h | |
| parent | d7bb545d86825e635cab33a1dd81ca0ad7b92887 (diff) | |
| parent | 77ad386e596c6b0930cc2e09e3cce485e3ee7f72 (diff) | |
| download | linux-9e9abecfc0ff3a9ad2ead954b37bbfcb863c775e.tar.xz | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (613 commits)
x86: standalone trampoline code
x86: move suspend wakeup code to C
x86: coding style fixes to arch/x86/kernel/acpi/sleep.c
x86: setup_trampoline() - fix section mismatch warning
x86: section mismatch fixes, #1
x86: fix paranoia about using BIOS quickboot mechanism.
x86: print out buggy mptable
x86: use cpu_online()
x86: use cpumask_of_cpu()
x86: remove unnecessary tmp local variable
x86: remove unnecessary memset()
x86: use ioapic_read_entry() and ioapic_write_entry()
x86: avoid redundant loop in io_apic_level_ack_pending()
x86: remove superfluous initialisation in boot code.
x86: merge mpparse_{32,64}.c
x86: unify mp_register_gsi
x86: unify mp_config_acpi_legacy_irqs
x86: unify mp_register_ioapic
x86: unify uniq_io_apic_id
x86: unify smp_scan_config
...
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 000000000000..9cbd9a668af8 --- /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 */ |