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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2007-10-13 05:27:47 +0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2007-10-13 05:27:47 +0400
commitb981d8b3f5e008ff10d993be633ad00564fc22cd (patch)
treee292dc07b22308912cf6a58354a608b9e5e8e1fd /include/asm-x86/mach-default/bios_ebda.h
parentb11d2127c4893a7315d1e16273bc8560049fa3ca (diff)
parent2b9e0aae1d50e880c58d46788e5e3ebd89d75d62 (diff)
downloadlinux-b981d8b3f5e008ff10d993be633ad00564fc22cd.tar.xz
Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/macintosh/adbhid.c
Diffstat (limited to 'include/asm-x86/mach-default/bios_ebda.h')
-rw-r--r--include/asm-x86/mach-default/bios_ebda.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-x86/mach-default/bios_ebda.h b/include/asm-x86/mach-default/bios_ebda.h
new file mode 100644
index 000000000000..9cbd9a668af8
--- /dev/null
+++ b/include/asm-x86/mach-default/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 */