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tc_dma.c revision 1.8 
      1 /* $NetBSD: tc_dma.c,v 1.8 1998/06/03 18:25:54 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     41 
     42 __KERNEL_RCSID(0, "$NetBSD: tc_dma.c,v 1.8 1998/06/03 18:25:54 thorpej Exp $");
     43 
     44 #include <sys/param.h>
     45 #include <sys/device.h>
     46 
     47 #define _ALPHA_BUS_DMA_PRIVATE
     48 #include <machine/bus.h>
     49 
     50 #include <dev/tc/tcvar.h>
     51 
     52 struct alpha_bus_dma_tag tc_dmat_direct = {
     53 	NULL,				/* _cookie */
     54 	0,				/* _wbase */
     55 	0,				/* _wsize */
     56 	NULL,				/* _next_window */
     57 	0,				/* _boundary */
     58 	NULL,				/* _sgmap */
     59 	NULL,				/* _get_tag */
     60 	_bus_dmamap_create,
     61 	_bus_dmamap_destroy,
     62 	_bus_dmamap_load_direct,
     63 	_bus_dmamap_load_mbuf_direct,
     64 	_bus_dmamap_load_uio_direct,
     65 	_bus_dmamap_load_raw_direct,
     66 	_bus_dmamap_unload,
     67 	_bus_dmamap_sync,
     68 	_bus_dmamem_alloc,
     69 	_bus_dmamem_free,
     70 	_bus_dmamem_map,
     71 	_bus_dmamem_unmap,
     72 	_bus_dmamem_mmap,
     73 };
     74 
     75 void
     76 tc_dma_init()
     77 {
     78 
     79 	/* XXX XXX BEGIN XXX XXX */
     80 	{							/* XXX */
     81 		extern vm_offset_t alpha_XXX_dmamap_or;		/* XXX */
     82 		alpha_XXX_dmamap_or = 0;			/* XXX */
     83 	}							/* XXX */
     84 	/* XXX XXX END XXX XXX */
     85 }
     86