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_phys)(bus_dma_tag_t dmat, bus_dmamap_t map,
82 vm_paddr_t buf, bus_size_t buflen, int flags,
83 bus_dma_segment_t *segs, int *segp);
84 int (*dm_dmamap_load_buffer)(bus_dma_tag_t dmat, bus_dmamap_t map,
85 void *buf, bus_size_t buflen, struct pmap *pmap, int flags,
86 bus_dma_segment_t *segs, int *segp);
87 void (*dm_dmamap_waitok)(bus_dma_tag_t dmat, bus_dmamap_t map,
88 struct memdesc *mem, bus_dmamap_callback_t *callback,
90 bus_dma_segment_t *(*dm_dmamap_complete)(bus_dma_tag_t dmat,
91 bus_dmamap_t map, bus_dma_segment_t *segs, int nsegs, int error);
92 void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
93 void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
95 int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *);
96 void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t);
102 * A machine-dependent opaque type describing the implementation of
103 * DMA for a given bus.
106 void *dt_cookie; /* cookie used in the guts */
107 bus_dma_tag_t dt_parent;
108 bus_size_t dt_alignment;
109 bus_size_t dt_boundary;
110 bus_addr_t dt_lowaddr;
111 bus_addr_t dt_highaddr;
112 bus_dma_filter_t *dt_filter;
114 bus_size_t dt_maxsize;
116 bus_size_t dt_maxsegsz;
120 bus_dma_lock_t *dt_lockfunc;
121 void * *dt_lockfuncarg;
122 bus_dma_segment_t *dt_segments;
124 struct bus_dma_methods *dt_mt;
127 #define bus_dmamap_create(t, f, p) \
128 ((t)->dt_mt->dm_dmamap_create((t), (f), (p)))
129 #define bus_dmamap_destroy(t, p) \
130 ((t)->dt_mt->dm_dmamap_destroy((t), (p)))
131 #define _bus_dmamap_load_phys(t, m, b, l, f, s, sp) \
132 ((t)->dt_mt->dm_dmamap_load_phys((t), (m), (b), (l), \
134 #define _bus_dmamap_load_buffer(t, m, b, l, p, f, s, sp) \
135 ((t)->dt_mt->dm_dmamap_load_buffer((t), (m), (b), (l), (p), \
137 #define _bus_dmamap_waitok(t, m, mem, c, ca) \
138 ((t)->dt_mt->dm_dmamap_waitok((t), (m), (mem), (c), (ca)))
139 #define _bus_dmamap_complete(t, m, s, n, e) \
140 ((t)->dt_mt->dm_dmamap_complete((t), (m), (s), (n), (e)))
141 #define bus_dmamap_unload(t, p) \
142 ((t)->dt_mt->dm_dmamap_unload((t), (p)))
143 #define bus_dmamap_sync(t, m, op) \
144 ((t)->dt_mt->dm_dmamap_sync((t), (m), (op)))
145 #define bus_dmamem_alloc(t, v, f, m) \
146 ((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m)))
147 #define bus_dmamem_free(t, v, m) \
148 ((t)->dt_mt->dm_dmamem_free((t), (v), (m)))
150 #endif /* !_SPARC64_BUS_DMA_H_ */