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Diffstat (limited to 'sys/sun4v/include/bus_dma.h')
| -rw-r--r-- | sys/sun4v/include/bus_dma.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/sys/sun4v/include/bus_dma.h b/sys/sun4v/include/bus_dma.h new file mode 100644 index 000000000000..e2b89a1263a5 --- /dev/null +++ b/sys/sun4v/include/bus_dma.h @@ -0,0 +1,152 @@ +/*- + * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +/* + * Copyright (c) 1997-1999 Eduardo E. Horvath. All rights reserved. + * Copyright (c) 1996 Charles M. Hannum. All rights reserved. + * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Christopher G. Demetriou + * for the NetBSD Project. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * from: NetBSD: bus.h,v 1.28 2001/07/19 15:32:19 thorpej Exp + * and + * from: FreeBSD: src/sys/alpha/include/bus.h,v 1.9 2001/01/09 + * + * $FreeBSD$ + */ + +#ifndef _SPARC64_BUS_DMA_H +#define _SPARC64_BUS_DMA_H + +#include <sys/bus_dma.h> + +/* DMA support */ + +/* + * Method table for a bus_dma_tag. + */ +struct bus_dma_methods { + int (*dm_dmamap_create)(bus_dma_tag_t, int, bus_dmamap_t *); + int (*dm_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t); + int (*dm_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *, + bus_size_t, bus_dmamap_callback_t *, void *, int); + int (*dm_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t, + struct mbuf *, bus_dmamap_callback2_t *, void *, int); + int (*dm_dmamap_load_mbuf_sg)(bus_dma_tag_t, bus_dmamap_t, + struct mbuf *, bus_dma_segment_t *segs, int *nsegs, int); + int (*dm_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *, + bus_dmamap_callback2_t *, void *, int); + void (*dm_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t); + void (*dm_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t, + bus_dmasync_op_t); + int (*dm_dmamem_alloc)(bus_dma_tag_t, void **, int, bus_dmamap_t *); + void (*dm_dmamem_free)(bus_dma_tag_t, void *, bus_dmamap_t); +}; + +/* + * bus_dma_tag_t + * + * A machine-dependent opaque type describing the implementation of + * DMA for a given bus. + */ +struct bus_dma_tag { + void *dt_cookie; /* cookie used in the guts */ + bus_dma_tag_t dt_parent; + bus_size_t dt_alignment; + bus_size_t dt_boundary; + bus_addr_t dt_lowaddr; + bus_addr_t dt_highaddr; + bus_dma_filter_t *dt_filter; + void *dt_filterarg; + bus_size_t dt_maxsize; + int dt_nsegments; + bus_size_t dt_maxsegsz; + int dt_flags; + int dt_ref_count; + int dt_map_count; + bus_dma_lock_t *dt_lockfunc; + void * *dt_lockfuncarg; + bus_dma_segment_t *dt_segments; + + struct bus_dma_methods *dt_mt; +}; + +#define bus_dmamap_create(t, f, p) \ + ((t)->dt_mt->dm_dmamap_create((t), (f), (p))) +#define bus_dmamap_destroy(t, p) \ + ((t)->dt_mt->dm_dmamap_destroy((t), (p))) +#define bus_dmamap_load(t, m, p, s, cb, cba, f) \ + ((t)->dt_mt->dm_dmamap_load((t), (m), (p), (s), (cb), (cba), (f))) +#define bus_dmamap_load_mbuf(t, m, mb, cb, cba, f) \ + ((t)->dt_mt->dm_dmamap_load_mbuf((t), (m), (mb), (cb), (cba), (f))) +#define bus_dmamap_load_mbuf_sg(t, m, mb, segs, nsegs, f) \ + ((t)->dt_mt->dm_dmamap_load_mbuf_sg((t), (m), (mb), (segs), (nsegs), (f))) +#define bus_dmamap_load_uio(t, m, ui, cb, cba, f) \ + ((t)->dt_mt->dm_dmamap_load_uio((t), (m), (ui), (cb), (cba), (f))) +#define bus_dmamap_unload(t, p) \ + ((t)->dt_mt->dm_dmamap_unload((t), (p))) +#define bus_dmamap_sync(t, m, op) \ + ((t)->dt_mt->dm_dmamap_sync((t), (m), (op))) +#define bus_dmamem_alloc(t, v, f, m) \ + ((t)->dt_mt->dm_dmamem_alloc((t), (v), (f), (m))) +#define bus_dmamem_free(t, v, m) \ + ((t)->dt_mt->dm_dmamem_free((t), (v), (m))) + +#endif /* !_SPARC64_BUS_DMA_H_ */ |