io-mapping.h revision 302408 
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 * $FreeBSD: stable/11/sys/compat/linuxkpi/common/include/linux/io-mapping.h 290135 2015-10-29 08:28:39Z hselasky $
30 */
31#ifndef	_LINUX_IO_MAPPING_H_
32#define	_LINUX_IO_MAPPING_H_
33
34#include <linux/types.h>
35#include <linux/io.h>
36
37struct io_mapping;
38
39static inline struct io_mapping *
40io_mapping_create_wc(resource_size_t base, unsigned long size)
41{
42
43	return ioremap_wc(base, size);
44}
45
46static inline void
47io_mapping_free(struct io_mapping *mapping)
48{
49
50	iounmap(mapping);
51}
52
53static inline void *
54io_mapping_map_atomic_wc(struct io_mapping *mapping, unsigned long offset)
55{
56
57	return (((char *)mapping) + offset);
58}
59
60static inline void
61io_mapping_unmap_atomic(void *vaddr)
62{
63
64}
65
66static inline void *
67io_mapping_map_wc(struct io_mapping *mapping, unsigned long offset)
68{
69
70	return (((char *) mapping) + offset);
71}
72
73static inline void
74io_mapping_unmap(void *vaddr)
75{
76
77}
78
79#endif	/* _LINUX_IO_MAPPING_H_ */
80