1219820Sjeff/*-
2219820Sjeff * Copyright (c) 2010 Isilon Systems, Inc.
3219820Sjeff * Copyright (c) 2010 iX Systems, Inc.
4219820Sjeff * Copyright (c) 2010 Panasas, Inc.
5271127Shselasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6219820Sjeff * All rights reserved.
7219820Sjeff *
8219820Sjeff * Redistribution and use in source and binary forms, with or without
9219820Sjeff * modification, are permitted provided that the following conditions
10219820Sjeff * are met:
11219820Sjeff * 1. Redistributions of source code must retain the above copyright
12219820Sjeff *    notice unmodified, this list of conditions, and the following
13219820Sjeff *    disclaimer.
14219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright
15219820Sjeff *    notice, this list of conditions and the following disclaimer in the
16219820Sjeff *    documentation and/or other materials provided with the distribution.
17219820Sjeff *
18219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19219820Sjeff * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20219820Sjeff * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21219820Sjeff * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22219820Sjeff * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23219820Sjeff * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24219820Sjeff * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25219820Sjeff * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26219820Sjeff * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27219820Sjeff * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28219820Sjeff */
29219820Sjeff
30219820Sjeff#ifndef	_LINUX_IO_MAPPING_H_
31219820Sjeff#define	_LINUX_IO_MAPPING_H_
32219820Sjeff
33219820Sjeff#include <linux/types.h>
34219820Sjeff#include <linux/io.h>
35219820Sjeff
36219820Sjeffstruct io_mapping;
37219820Sjeff
38219820Sjeffstatic inline struct io_mapping *
39219820Sjeffio_mapping_create_wc(resource_size_t base, unsigned long size)
40219820Sjeff{
41219820Sjeff
42219820Sjeff	return ioremap_wc(base, size);
43219820Sjeff}
44219820Sjeff
45219820Sjeffstatic inline void
46219820Sjeffio_mapping_free(struct io_mapping *mapping)
47219820Sjeff{
48219820Sjeff
49219820Sjeff	iounmap(mapping);
50219820Sjeff}
51219820Sjeff
52219820Sjeffstatic inline void *
53219820Sjeffio_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
54219820Sjeff{
55219820Sjeff
56219820Sjeff	return (((char *)mapping) + offset);
57219820Sjeff}
58219820Sjeff
59219820Sjeffstatic inline void
60219820Sjeffio_mapping_unmap_atomic(void *vaddr)
61219820Sjeff{
62219820Sjeff
63219820Sjeff}
64219820Sjeff
65219820Sjeffstatic inline void *
66219820Sjeffio_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
67219820Sjeff{
68219820Sjeff
69219820Sjeff	return (((char *) mapping) + offset);
70219820Sjeff}
71219820Sjeff
72219820Sjeffstatic inline void
73219820Sjeffio_mapping_unmap(void *vaddr)
74219820Sjeff{
75219820Sjeff
76219820Sjeff}
77219820Sjeff
78219820Sjeff#endif	/* _LINUX_IO_MAPPING_H_ */
79