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      1 /* $NetBSD: tc_dma.c,v 1.15 2021/07/18 05:12:27 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  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     34 
     35 __KERNEL_RCSID(0, "$NetBSD: tc_dma.c,v 1.15 2021/07/18 05:12:27 thorpej Exp $");
     36 
     37 #include <sys/param.h>
     38 #include <sys/device.h>
     39 
     40 #define _ALPHA_BUS_DMA_PRIVATE
     41 #include <sys/bus.h>
     42 
     43 #include <dev/tc/tcvar.h>
     44 
     45 struct alpha_bus_dma_tag tc_dmat_direct = {
     46 	NULL,				/* _cookie */
     47 	0,				/* _wbase */
     48 	0,				/* _wsize */
     49 	NULL,				/* _next_window */
     50 	0,				/* _boundary */
     51 	NULL,				/* _sgmap */
     52 	0,				/* _sgmap_minalign */
     53 	0,				/* _pfthresh */
     54 	NULL,				/* _get_tag */
     55 	_bus_dmamap_create,
     56 	_bus_dmamap_destroy,
     57 	_bus_dmamap_load_direct,
     58 	_bus_dmamap_load_mbuf_direct,
     59 	_bus_dmamap_load_uio_direct,
     60 	_bus_dmamap_load_raw_direct,
     61 	_bus_dmamap_unload,
     62 	_bus_dmamap_sync,
     63 	_bus_dmamem_alloc,
     64 	_bus_dmamem_free,
     65 	_bus_dmamem_map,
     66 	_bus_dmamem_unmap,
     67 	_bus_dmamem_mmap,
     68 };
     69 
     70 void
     71 tc_dma_init(void)
     72 {
     73 	/* Nada. */
     74 }
     75