2 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
7 * NASA Ames Research Center.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following 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.
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
31 * Copyright (c) 1997-1999 Eduardo E. Horvath. All rights reserved.
32 * Copyright (c) 1996 Charles M. Hannum. All rights reserved.
33 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. All advertising materials mentioning features or use of this software
44 * must display the following acknowledgement:
45 * This product includes software developed by Christopher G. Demetriou
46 * for the NetBSD Project.
47 * 4. The name of the author may not be used to endorse or promote products
48 * derived from this software without specific prior written permission
50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 * from: NetBSD: bus.h,v 1.58 2008/04/28 20:23:36 martin Exp
63 * from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09
68 #ifndef _SPARC64_BUS_DMA_H
69 #define _SPARC64_BUS_DMA_H
71 #include <sys/bus_dma.h>
76 * Method table for a bus_dma_tag.
78 struct bus_dma_methods {
79 int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *);
80 int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
81 int (*dm_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
82 bus_size_t, bus_dmamap_callback_t *, void *, int);
83 int (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
84 struct mbuf *, bus_dmamap_callback2_t *, void *, int);
85 int (*dm_dmamap_load_mbuf_sg)(bus_dma_tag_t, bus_dmamap_t,
86 struct mbuf *, bus_dma_segment_t *segs, int *nsegs, int);
87 int (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *,
88 bus_dmamap_callback2_t *, void *, int);
89 void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
90 void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
92 int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *);
93 void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t);
99 * A machine-dependent opaque type describing the implementation of
100 * DMA for a given bus.
103 void *dt_cookie; /* cookie used in the guts */
104 bus_dma_tag_t dt_parent;
105 bus_size_t dt_alignment;
106 bus_size_t dt_boundary;
107 bus_addr_t dt_lowaddr;
108 bus_addr_t dt_highaddr;
109 bus_dma_filter_t *dt_filter;
111 bus_size_t dt_maxsize;
113 bus_size_t dt_maxsegsz;
117 bus_dma_lock_t *dt_lockfunc;
118 void * *dt_lockfuncarg;
119 bus_dma_segment_t *dt_segments;
121 struct bus_dma_methods *dt_mt;
124 #define bus_dmamap_create(t, f, p) \
125 ((t)->dt_mt->dm_dmamap_create((t), (f), (p)))
126 #define bus_dmamap_destroy(t, p) \
127 ((t)->dt_mt->dm_dmamap_destroy((t), (p)))
128 #define bus_dmamap_load(t, m, p, s, cb, cba, f) \
129 ((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f)))
130 #define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f) \
131 ((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f)))
132 #define bus_dmamap_load_mbuf_sg(t, m, mb, segs, nsegs, f) \
133 ((t)->dt_mt->dm_dmamap_load_mbuf_sg((t), (m), (mb), (segs), (nsegs), (f)))
134 #define bus_dmamap_load_uio(t, m, ui, cb, cba, f) \
135 ((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f)))
136 #define bus_dmamap_unload(t, p) \
137 ((t)->dt_mt->dm_dmamap_unload((t), (p)))
138 #define bus_dmamap_sync(t, m, op) \
139 ((t)->dt_mt->dm_dmamap_sync((t), (m), (op)))
140 #define bus_dmamem_alloc(t, v, f, m) \
141 ((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m)))
142 #define bus_dmamem_free(t, v, m) \
143 ((t)->dt_mt->dm_dmamem_free((t), (v), (m)))
145 #endif /* !_SPARC64_BUS_DMA_H_ */