summaryrefslogtreecommitdiff
path: root/include/asm-x86/mach-default/mach_traps.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-x86/mach-default/mach_traps.h')
-rw-r--r--include/asm-x86/mach-default/mach_traps.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-x86/mach-default/mach_traps.h b/include/asm-x86/mach-default/mach_traps.h
new file mode 100644
index 000000000000..625438b8a6eb
--- /dev/null
+++ b/include/asm-x86/mach-default/mach_traps.h
@@ -0,0 +1,41 @@
+/*
+ * include/asm-i386/mach-default/mach_traps.h
+ *
+ * Machine specific NMI handling for generic.
+ * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
+ */
+#ifndef _MACH_TRAPS_H
+#define _MACH_TRAPS_H
+
+#include <asm/mc146818rtc.h>
+
+static inline void clear_mem_error(unsigned char reason)
+{
+ reason = (reason & 0xf) | 4;
+ outb(reason, 0x61);
+}
+
+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 /* !_MACH_TRAPS_H */