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