plpar_iommu.h revision 331722 
1/*-
2 * Copyright (c) 2013, Nathan Whitehorn <nwhitehorn@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/powerpc/pseries/plpar_iommu.h 331722 2018-03-29 02:50:57Z eadler $
27 */
28
29#ifndef _PSERIES_PHYP_IOMMU_H_
30#define _PSERIES_PHYP_IOMMU_H_
31
32#include <sys/types.h>
33#include <sys/bus_dma.h>
34
35int phyp_iommu_set_dma_tag(device_t dev, device_t child, bus_dma_tag_t tag);
36int phyp_iommu_map(device_t dev, bus_dma_segment_t *segs, int *nsegs,
37    bus_addr_t min, bus_addr_t max, bus_size_t alignment, bus_addr_t boundary,
38    void *cookie);
39int phyp_iommu_unmap(device_t dev, bus_dma_segment_t *segs, int nsegs,
40    void *cookie);
41
42#endif
43
44