1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef	_LINUX_IO_MAPPING_H_
31#define	_LINUX_IO_MAPPING_H_
32
33#include <linux/types.h>
34#include <linux/io.h>
35
36struct io_mapping;
37
38static inline struct io_mapping *
39io_mapping_create_wc(resource_size_t base, unsigned long size)
40{
41
42	return ioremap_wc(base, size);
43}
44
45static inline void
46io_mapping_free(struct io_mapping *mapping)
47{
48
49	iounmap(mapping);
50}
51
52static inline void *
53io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
54{
55
56	return (((char *)mapping) + offset);
57}
58
59static inline void
60io_mapping_unmap_atomic(void *vaddr)
61{
62
63}
64
65static inline void *
66io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
67{
68
69	return (((char *) mapping) + offset);
70}
71
72static inline void
73io_mapping_unmap(void *vaddr)
74{
75
76}
77
78#endif	/* _LINUX_IO_MAPPING_H_ */
79