1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice unmodified, this list of conditions, and the following
12 *    disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef	_LINUX_IO_MAPPING_H_
30#define	_LINUX_IO_MAPPING_H_
31
32#include <linux/types.h>
33#include <linux/io.h>
34
35struct io_mapping;
36
37static inline struct io_mapping *
38io_mapping_create_wc(resource_size_t base, unsigned long size)
39{
40
41	return ioremap_wc(base, size);
42}
43
44static inline void
45io_mapping_free(struct io_mapping *mapping)
46{
47
48	iounmap(mapping);
49}
50
51static inline void *
52io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
53{
54
55	return (((char *)mapping) + offset);
56}
57
58static inline void
59io_mapping_unmap_atomic(void *vaddr)
60{
61
62}
63
64static inline void *
65io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
66{
67
68	return (((char *) mapping) + offset);
69}
70
71static inline void
72io_mapping_unmap(void *vaddr)
73{
74
75}
76
77#endif	/* _LINUX_IO_MAPPING_H_ */
78