--- ./arch/mips64/kernel/i8259.c.orig	Mon Aug  5 16:53:33 2002
+++ ./arch/mips64/kernel/i8259.c	Fri Dec 13 14:54:09 2002
@@ -14,6 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
+#include <linux/bitops.h>
 
 #include <asm/io.h>
 
@@ -219,6 +220,26 @@
 	}
 }
 
+asmlinkage void dispatch_i8259_irq(struct pt_regs *regs)
+{
+	int isr, irq=-1;
+
+	isr = ~(int)inb(0x20) | cached_21;
+	if (isr != -1) 
+		irq = ffz (isr);
+	if (irq == 2) {
+		isr = ~(int)inb(0xa0) | cached_A1;
+		if (isr != -1) 
+			irq = 8 + ffz(isr);
+	}
+	if (irq == -1) {
+		printk("We got a spurious i8259 interrupt\n");
+		atomic_inc(&irq_err_count);
+	} else {
+		do_IRQ(irq,regs);
+	}
+}
+
 void __init init_8259A(int auto_eoi)
 {
 	unsigned long flags;
diff -Nru ./include/asm-mips64/irq.h.orig ./include/asm-mips/irq.h
--- ./include/asm-mips64/irq.h.orig	Fri Dec 13 10:51:25 2002
+++ ./include/asm-mips64/irq.h	Fri Dec 13 14:50:46 2002
@@ -12,6 +12,7 @@
 #define _ASM_IRQ_H
 
 #include <linux/config.h>
+#include <linux/linkage.h>
 
 #define NR_IRQS 128		/* Largest number of ints of all machines.  */
 
@@ -36,4 +37,6 @@
 
 extern void init_generic_irq(void);
 
+extern asmlinkage unsigned int do_IRQ(int irq, struct pt_regs *regs);
+
 #endif /* _ASM_IRQ_H */