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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/compat/linuxkpi/common/include/linux/dma-attrs.h
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/*-

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 * Copyright (c) 2010 Isilon Systems, Inc.

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 * Copyright (c) 2010 iX Systems, Inc.

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 * Copyright (c) 2010 Panasas, Inc.

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 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice unmodified, this list of conditions, and the following

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 *    disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 */

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#ifndef	_LINUXKPI_LINUX_DMA_ATTR_H_

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#define	_LINUXKPI_LINUX_DMA_ATTR_H_

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#define	DMA_ATTR_WRITE_BARRIER		(1 << 0)

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#define	DMA_ATTR_WEAK_ORDERING		(1 << 1)

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#define	DMA_ATTR_WRITE_COMBINE		(1 << 2)

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#define	DMA_ATTR_NON_CONSISTENT		(1 << 3)

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#define	DMA_ATTR_NO_KERNEL_MAPPING	(1 << 4)

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#define	DMA_ATTR_SKIP_CPU_SYNC		(1 << 5)

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#define	DMA_ATTR_FORCE_CONTIGUOUS	(1 << 6)

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#define	DMA_ATTR_ALLOC_SINGLE_PAGES	(1 << 7)

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#define	DMA_ATTR_NO_WARN		(1 << 8)

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#define	DMA_ATTR_PRIVILEGED		(1 << 9)

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struct dma_attrs {

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	unsigned long flags;

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};

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#define DEFINE_DMA_ATTRS(x) struct dma_attrs x = { }

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static inline void

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init_dma_attrs(struct dma_attrs *attrs)

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{

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	attrs->flags = 0;

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}

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#endif	/* _LINUXKPI_LINUX_DMA_ATTR_H_ */

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