diff options
author | David Howells <dhowells@redhat.com> | 2009-04-10 01:48:06 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2009-04-10 01:48:06 +0100 |
commit | e69cc9278831139660cb99bde52908f145338d77 (patch) | |
tree | fdc1f002b6036a2220d73c86a253886fa76015dc /arch/frv/include/asm/virtconvert.h | |
parent | 187934655fa0637d4ef3967d4543c6dcccf33058 (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.h | 41 |
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 00000000000..59788fa2a81 --- /dev/null +++ b/arch/frv/include/asm/virtconvert.h @@ -0,0 +1,41 @@ +/* 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 <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 |