X86 arch split

Add hook for MCA NMI

arch/i386/generic/setup.c

@@ -2,6 +2,7 @@
  *	Machine specific setup for generic
  */
 
+#include <linux/config.h>
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/irq.h>
@@ -41,3 +42,15 @@ void __init time_init_hook(void)
 {
 	setup_irq(0, &irq0);
 }
+
+#ifdef CONFIG_MCA
+void __init mca_nmi_hook(void)
+{
+	/* If I recall correctly, there's a whole bunch of other things that
+	 * we can do to check for NMI problems, but that's all I know about
+	 * at the moment.
+	 */
+
+	printk("NMI generated from unknown source!\n");
+}
+#endif

arch/i386/kernel/mca.c

@@ -371,12 +371,7 @@ void mca_handle_nmi(void)
 		}
 	}
 
-	/* If I recall correctly, there's a whole bunch of other things that
-	 * we can do to check for NMI problems, but that's all I know about
-	 * at the moment.
-	 */
-
-	printk("NMI generated from unknown source!\n");
+	mca_nmi_hook();
 } /* mca_handle_nmi */
 
 /*--------------------------------------------------------------------*/

include/asm-i386/arch_hooks.h

@@ -20,5 +20,6 @@ extern void pre_intr_init_hook(void);
 extern void pre_setup_arch_hook(void);
 extern void trap_init_hook(void);
 extern void time_init_hook(void);
+extern void mca_nmi_hook(void);
 
 #endif