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authorDavid Howells <dhowells@redhat.com>2009-04-09 20:48:06 -0400
committerDavid Howells <dhowells@redhat.com>2009-04-09 20:48:06 -0400
commite69cc9278831139660cb99bde52908f145338d77 (patch)
treefdc1f002b6036a2220d73c86a253886fa76015dc /arch/frv/include/asm/virtconvert.h
parent187934655fa0637d4ef3967d4543c6dcccf33058 (diff)
FRV: Move to arch/frv/include/asm/
Move arch headers from include/asm-frv/ to arch/frv/include/asm/. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/frv/include/asm/virtconvert.h')
-rw-r--r--arch/frv/include/asm/virtconvert.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/frv/include/asm/virtconvert.h b/arch/frv/include/asm/virtconvert.h
new file mode 100644
index 000000000000..59788fa2a813
--- /dev/null
+++ b/arch/frv/include/asm/virtconvert.h
@@ -0,0 +1,41 @@
1/* virtconvert.h: virtual/physical/page address convertion
2 *
3 * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11#ifndef _ASM_VIRTCONVERT_H
12#define _ASM_VIRTCONVERT_H
13
14/*
15 * Macros used for converting between virtual and physical mappings.
16 */
17
18#ifdef __KERNEL__
19
20#include <asm/setup.h>
21
22#ifdef CONFIG_MMU
23
24#define phys_to_virt(vaddr) ((void *) ((unsigned long)(vaddr) + PAGE_OFFSET))
25#define virt_to_phys(vaddr) ((unsigned long) (vaddr) - PAGE_OFFSET)
26
27#else
28
29#define phys_to_virt(vaddr) ((void *) (vaddr))
30#define virt_to_phys(vaddr) ((unsigned long) (vaddr))
31
32#endif
33
34#define virt_to_bus virt_to_phys
35#define bus_to_virt phys_to_virt
36
37#define __page_address(page) (PAGE_OFFSET + (((page) - mem_map) << PAGE_SHIFT))
38#define page_to_phys(page) virt_to_phys((void *)__page_address(page))
39
40#endif
41#endif