diff --git a/include/asm-sh64/hardirq.h b/include/asm-sh64/hardirq.h
new file mode 100644
index 0000000..ad2330e
--- /dev/null
+++ b/include/asm-sh64/hardirq.h
@@ -0,0 +1,19 @@
+#ifndef __ASM_SH64_HARDIRQ_H
+#define __ASM_SH64_HARDIRQ_H
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <linux/irq.h>
+
+/* entry.S is sensitive to the offsets of these fields */
+typedef struct {
+	unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
+
+/* arch/sh64/kernel/irq.c */
+extern void ack_bad_irq(unsigned int irq);
+
+#endif /* __ASM_SH64_HARDIRQ_H */
+