1 files changed, 33 insertions, 0 deletions

diff --git a/arch/x86/include/asm/mach_traps.h b/arch/x86/include/asm/mach_traps.h
new file mode 100644
index 00000000000..f7920601e47
--- /dev/null
+++ b/arch/x86/include/asm/mach_traps.h
@@ -0,0 +1,33 @@
+/*
+ *  Machine specific NMI handling for generic.
+ *  Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
+ */
+#ifndef _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
+#define _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
+
+#include <asm/mc146818rtc.h>
+
+static inline unsigned char get_nmi_reason(void)
+{
+        return inb(0x61);
+}
+
+static inline void reassert_nmi(void)
+{
+        int old_reg = -1;
+
+        if (do_i_have_lock_cmos())
+                old_reg = current_lock_cmos_reg();
+        else
+                lock_cmos(0); /* register doesn't matter here */
+        outb(0x8f, 0x70);
+        inb(0x71);              /* dummy */
+        outb(0x0f, 0x70);
+        inb(0x71);              /* dummy */
+        if (old_reg >= 0)
+                outb(old_reg, 0x70);
+        else
+                unlock_cmos();
+}
+
+#endif /* _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H */