146 lines
6.1 KiB
C
146 lines
6.1 KiB
C
/*-
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* Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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, this list of conditions and the following 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997-1999 Eduardo E. Horvath. All rights reserved.
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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. 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, this list of conditions and the following 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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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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* from: NetBSD: bus.h,v 1.58 2008/04/28 20:23:36 martin Exp
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* and
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* from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09
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*
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* $FreeBSD$
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*/
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#ifndef _SPARC64_BUS_DMA_H
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#define _SPARC64_BUS_DMA_H
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#include <sys/bus_dma.h>
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/* DMA support */
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/*
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* Method table for a bus_dma_tag.
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*/
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struct bus_dma_methods {
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int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *);
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int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
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int (*dm_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
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bus_size_t, bus_dmamap_callback_t *, void *, int);
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int (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
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struct mbuf *, bus_dmamap_callback2_t *, void *, int);
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int (*dm_dmamap_load_mbuf_sg)(bus_dma_tag_t, bus_dmamap_t,
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struct mbuf *, bus_dma_segment_t *segs, int *nsegs, int);
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int (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *,
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bus_dmamap_callback2_t *, void *, int);
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void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
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void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
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bus_dmasync_op_t);
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int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *);
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void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t);
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};
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/*
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* bus_dma_tag_t
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*
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* A machine-dependent opaque type describing the implementation of
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* DMA for a given bus.
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*/
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struct bus_dma_tag {
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void *dt_cookie; /* cookie used in the guts */
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bus_dma_tag_t dt_parent;
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bus_size_t dt_alignment;
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bus_size_t dt_boundary;
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bus_addr_t dt_lowaddr;
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bus_addr_t dt_highaddr;
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bus_dma_filter_t *dt_filter;
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void *dt_filterarg;
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bus_size_t dt_maxsize;
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int dt_nsegments;
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bus_size_t dt_maxsegsz;
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int dt_flags;
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int dt_ref_count;
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int dt_map_count;
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bus_dma_lock_t *dt_lockfunc;
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void * *dt_lockfuncarg;
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bus_dma_segment_t *dt_segments;
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struct bus_dma_methods *dt_mt;
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};
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#define bus_dmamap_create(t, f, p) \
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((t)->dt_mt->dm_dmamap_create((t), (f), (p)))
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#define bus_dmamap_destroy(t, p) \
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((t)->dt_mt->dm_dmamap_destroy((t), (p)))
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#define bus_dmamap_load(t, m, p, s, cb, cba, f) \
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((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f)))
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#define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f) \
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((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f)))
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#define bus_dmamap_load_mbuf_sg(t, m, mb, segs, nsegs, f) \
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((t)->dt_mt->dm_dmamap_load_mbuf_sg((t), (m), (mb), (segs), (nsegs), (f)))
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#define bus_dmamap_load_uio(t, m, ui, cb, cba, f) \
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((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f)))
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#define bus_dmamap_unload(t, p) \
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((t)->dt_mt->dm_dmamap_unload((t), (p)))
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#define bus_dmamap_sync(t, m, op) \
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((t)->dt_mt->dm_dmamap_sync((t), (m), (op)))
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#define bus_dmamem_alloc(t, v, f, m) \
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((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m)))
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#define bus_dmamem_free(t, v, m) \
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((t)->dt_mt->dm_dmamem_free((t), (v), (m)))
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#endif /* !_SPARC64_BUS_DMA_H_ */
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