1 /*- 2 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 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. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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. 17 * 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. 29 */ 30 /* 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. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 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 49 * 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. 60 * 61 * from: NetBSD: bus.h,v 1.58 2008/04/28 20:23:36 martin Exp 62 * and 63 * from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09 64 * 65 * $FreeBSD$ 66 */ 67 68 #ifndef _SPARC64_BUS_DMA_H 69 #define _SPARC64_BUS_DMA_H 70 71 #include <sys/bus_dma.h> 72 73 /* DMA support */ 74 75 /* 76 * Method table for a bus_dma_tag. 77 */ 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, 89 void *callback_arg); 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, 94 bus_dmasync_op_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); 97 }; 98 99 /* 100 * bus_dma_tag_t 101 * 102 * A machine-dependent opaque type describing the implementation of 103 * DMA for a given bus. 104 */ 105 struct bus_dma_tag { 106 void *dt_cookie; /* cookie used in the guts */ 107 bus_dma_tag_t dt_parent; 108 bus_size_t dt_alignment; 109 bus_addr_t dt_boundary; 110 bus_addr_t dt_lowaddr; 111 bus_addr_t dt_highaddr; 112 bus_dma_filter_t *dt_filter; 113 void *dt_filterarg; 114 bus_size_t dt_maxsize; 115 int dt_nsegments; 116 bus_size_t dt_maxsegsz; 117 int dt_flags; 118 int dt_ref_count; 119 int dt_map_count; 120 bus_dma_lock_t *dt_lockfunc; 121 void * *dt_lockfuncarg; 122 bus_dma_segment_t *dt_segments; 123 124 struct bus_dma_methods *dt_mt; 125 }; 126 127 #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), \ 133 (f), (s), (sp))) 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), \ 136 (f), (s), (sp))) 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))) 149 #define _bus_dmamap_load_ma(t, m, a, tt, o, f, s, p) \ 150 bus_dmamap_load_ma_triv((t), (m), (a), (tt), (o), (f), (s), (p)) 151 152 #endif /* !_SPARC64_BUS_DMA_H_ */ 153