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-rw-r--r--include/asm-frv/virtconvert.h42
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diff --git a/include/asm-frv/virtconvert.h b/include/asm-frv/virtconvert.h
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+/* virtconvert.h: virtual/physical/page address convertion
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _ASM_VIRTCONVERT_H
+#define _ASM_VIRTCONVERT_H
+
+/*
+ * Macros used for converting between virtual and physical mappings.
+ */
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <asm/setup.h>
+
+#ifdef CONFIG_MMU
+
+#define phys_to_virt(vaddr) ((void *) ((unsigned long)(vaddr) + PAGE_OFFSET))
+#define virt_to_phys(vaddr) ((unsigned long) (vaddr) - PAGE_OFFSET)
+
+#else
+
+#define phys_to_virt(vaddr) ((void *) (vaddr))
+#define virt_to_phys(vaddr) ((unsigned long) (vaddr))
+
+#endif
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+#define __page_address(page) (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
+#define page_to_phys(page) virt_to_phys((void *)__page_address(page))
+
+#endif
+#endif