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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 13:20:03 +0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 13:20:03 +0400
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/mach-default/bios_ebda.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
downloadlinux-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.xz
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 */