1aa0a1e58SJeff Roberson /*-
2aa0a1e58SJeff Roberson * Copyright (c) 2010 Isilon Systems, Inc.
3aa0a1e58SJeff Roberson * Copyright (c) 2010 iX Systems, Inc.
4aa0a1e58SJeff Roberson * Copyright (c) 2010 Panasas, Inc.
5c7818b48SHans Petter Selasky * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6aa0a1e58SJeff Roberson * All rights reserved.
7aa0a1e58SJeff Roberson *
8aa0a1e58SJeff Roberson * Redistribution and use in source and binary forms, with or without
9aa0a1e58SJeff Roberson * modification, are permitted provided that the following conditions
10aa0a1e58SJeff Roberson * are met:
11aa0a1e58SJeff Roberson * 1. Redistributions of source code must retain the above copyright
12aa0a1e58SJeff Roberson * notice unmodified, this list of conditions, and the following
13aa0a1e58SJeff Roberson * disclaimer.
14aa0a1e58SJeff Roberson * 2. Redistributions in binary form must reproduce the above copyright
15aa0a1e58SJeff Roberson * notice, this list of conditions and the following disclaimer in the
16aa0a1e58SJeff Roberson * documentation and/or other materials provided with the distribution.
17aa0a1e58SJeff Roberson *
18aa0a1e58SJeff Roberson * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19aa0a1e58SJeff Roberson * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20aa0a1e58SJeff Roberson * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21aa0a1e58SJeff Roberson * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22aa0a1e58SJeff Roberson * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23aa0a1e58SJeff Roberson * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24aa0a1e58SJeff Roberson * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25aa0a1e58SJeff Roberson * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26aa0a1e58SJeff Roberson * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27aa0a1e58SJeff Roberson * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28aa0a1e58SJeff Roberson */
29307f78f3SVladimir Kondratyev #ifndef _LINUXKPI_LINUX_DMA_ATTR_H_
30307f78f3SVladimir Kondratyev #define _LINUXKPI_LINUX_DMA_ATTR_H_
31aa0a1e58SJeff Roberson
324c09177aSHans Petter Selasky #define DMA_ATTR_WRITE_BARRIER (1 << 0)
334c09177aSHans Petter Selasky #define DMA_ATTR_WEAK_ORDERING (1 << 1)
344c09177aSHans Petter Selasky #define DMA_ATTR_WRITE_COMBINE (1 << 2)
354c09177aSHans Petter Selasky #define DMA_ATTR_NON_CONSISTENT (1 << 3)
364c09177aSHans Petter Selasky #define DMA_ATTR_NO_KERNEL_MAPPING (1 << 4)
374c09177aSHans Petter Selasky #define DMA_ATTR_SKIP_CPU_SYNC (1 << 5)
384c09177aSHans Petter Selasky #define DMA_ATTR_FORCE_CONTIGUOUS (1 << 6)
394c09177aSHans Petter Selasky #define DMA_ATTR_ALLOC_SINGLE_PAGES (1 << 7)
404c09177aSHans Petter Selasky #define DMA_ATTR_NO_WARN (1 << 8)
414c09177aSHans Petter Selasky #define DMA_ATTR_PRIVILEGED (1 << 9)
42aa0a1e58SJeff Roberson
43aa0a1e58SJeff Roberson struct dma_attrs {
44aa0a1e58SJeff Roberson unsigned long flags;
45aa0a1e58SJeff Roberson };
46aa0a1e58SJeff Roberson #define DEFINE_DMA_ATTRS(x) struct dma_attrs x = { }
47aa0a1e58SJeff Roberson
48aa0a1e58SJeff Roberson static inline void
init_dma_attrs(struct dma_attrs * attrs)49aa0a1e58SJeff Roberson init_dma_attrs(struct dma_attrs *attrs)
50aa0a1e58SJeff Roberson {
51aa0a1e58SJeff Roberson attrs->flags = 0;
52aa0a1e58SJeff Roberson }
53aa0a1e58SJeff Roberson
54307f78f3SVladimir Kondratyev #endif /* _LINUXKPI_LINUX_DMA_ATTR_H_ */
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