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diff --git a/arch/tile/include/gxio/common.h b/arch/tile/include/gxio/common.h
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+/*
+ * Copyright 2012 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef _GXIO_COMMON_H_
+#define _GXIO_COMMON_H_
+
+/*
+ * Routines shared between the various GXIO device components.
+ */
+
+#include <hv/iorpc.h>
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/io.h>
+
+/* Define the standard gxio MMIO functions using kernel functions. */
+#define __gxio_mmio_read8(addr) readb(addr)
+#define __gxio_mmio_read16(addr) readw(addr)
+#define __gxio_mmio_read32(addr) readl(addr)
+#define __gxio_mmio_read64(addr) readq(addr)
+#define __gxio_mmio_write8(addr, val) writeb((val), (addr))
+#define __gxio_mmio_write16(addr, val) writew((val), (addr))
+#define __gxio_mmio_write32(addr, val) writel((val), (addr))
+#define __gxio_mmio_write64(addr, val) writeq((val), (addr))
+#define __gxio_mmio_read(addr) __gxio_mmio_read64(addr)
+#define __gxio_mmio_write(addr, val) __gxio_mmio_write64((addr), (val))
+
+#endif /* !_GXIO_COMMON_H_ */