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Annotation of sys/arch/alpha/tc/tc_dma.c, Revision 1.1.1.1

1.1       nbrk        1: /* $OpenBSD: tc_dma.c,v 1.2 2006/04/04 21:20:40 brad Exp $ */
                      2: /* $NetBSD: tc_dma.c,v 1.10 2001/07/19 06:40:02 thorpej Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
                     10:  * NASA Ames Research Center.
                     11:  *
                     12:  * Redistribution and use in source and binary forms, with or without
                     13:  * modification, are permitted provided that the following conditions
                     14:  * are met:
                     15:  * 1. Redistributions of source code must retain the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer.
                     17:  * 2. Redistributions in binary form must reproduce the above copyright
                     18:  *    notice, this list of conditions and the following disclaimer in the
                     19:  *    documentation and/or other materials provided with the distribution.
                     20:  * 3. All advertising materials mentioning features or use of this software
                     21:  *    must display the following acknowledgement:
                     22:  *     This product includes software developed by the NetBSD
                     23:  *     Foundation, Inc. and its contributors.
                     24:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     25:  *    contributors may be used to endorse or promote products derived
                     26:  *    from this software without specific prior written permission.
                     27:  *
                     28:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     29:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     30:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     31:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     32:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     33:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     34:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     35:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     36:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     37:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     38:  * POSSIBILITY OF SUCH DAMAGE.
                     39:  */
                     40:
                     41: #define _ALPHA_BUS_DMA_PRIVATE
                     42:
                     43: #include <sys/param.h>
                     44: #include <sys/device.h>
                     45:
                     46: #include <machine/bus.h>
                     47:
                     48: #include <dev/tc/tcvar.h>
                     49:
                     50: struct alpha_bus_dma_tag tc_dmat_direct = {
                     51:        NULL,                           /* _cookie */
                     52:        0,                              /* _wbase */
                     53:        0,                              /* _wsize */
                     54:        NULL,                           /* _next_window */
                     55:        0,                              /* _boundary */
                     56:        NULL,                           /* _sgmap */
                     57:        0,                              /* _pfthresh */
                     58:        NULL,                           /* _get_tag */
                     59:        _bus_dmamap_create,
                     60:        _bus_dmamap_destroy,
                     61:        _bus_dmamap_load_direct,
                     62:        _bus_dmamap_load_mbuf_direct,
                     63:        _bus_dmamap_load_uio_direct,
                     64:        _bus_dmamap_load_raw_direct,
                     65:        _bus_dmamap_unload,
                     66:        _bus_dmamap_sync,
                     67:        _bus_dmamem_alloc,
                     68:        _bus_dmamem_free,
                     69:        _bus_dmamem_map,
                     70:        _bus_dmamem_unmap,
                     71:        _bus_dmamem_mmap,
                     72: };
                     73:
                     74: void
                     75: tc_dma_init()
                     76: {
                     77:
                     78:        /* XXX XXX BEGIN XXX XXX */
                     79:        {                                                       /* XXX */
                     80:                extern paddr_t alpha_XXX_dmamap_or;             /* XXX */
                     81:                alpha_XXX_dmamap_or = 0;                        /* XXX */
                     82:        }                                                       /* XXX */
                     83:        /* XXX XXX END XXX XXX */
                     84: }