sys/arch/arm/xscale/pxa2x0_dma.c

   1 /*      $NetBSD: pxa2x0_dma.c,v 1.1.8.3 2004/09/21 13:13:43 skrll Exp $ */
   2
   3 /*
   4  * Copyright (c) 2002  Genetec Corporation.  All rights reserved.
   5  * Written by Hiroyuki Bessho for Genetec Corporation.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed for the NetBSD Project by
  18  *      Genetec Corporation.
  19  * 4. The name of Genetec Corporation may not be used to endorse or
  20  *    promote products derived from this software without specific prior
  21  *    written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
  27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33  * POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 /*
  37  * bus dma tag for PXA2[15]0 processor.
  38  * (Currently used only for LCD frame buffer)
  39  */
  40
  41 #include <sys/cdefs.h>
  42 __KERNEL_RCSID(0, "$NetBSD: pxa2x0_dma.c,v 1.1.8.3 2004/09/21 13:13:43 skrll Exp $");
  43
  44 #include <sys/param.h>
  45 #include <sys/systm.h>
  46 #include <sys/device.h>
  47 #include <sys/malloc.h>
  48 #include <sys/mbuf.h>
  49
  50 #include <uvm/uvm_extern.h>
  51
  52 #define _ARM32_BUS_DMA_PRIVATE
  53 #include <machine/bus.h>
  54
  55 struct arm32_bus_dma_tag pxa2x0_bus_dma_tag = {
  56         0,
  57         0,
  58         NULL,                   /* _cookie */
  59         _bus_dmamap_create,
  60         _bus_dmamap_destroy,
  61         _bus_dmamap_load,
  62         _bus_dmamap_load_mbuf,
  63         _bus_dmamap_load_uio,
  64         _bus_dmamap_load_raw,
  65         _bus_dmamap_unload,
  66         _bus_dmamap_sync,
  67         NULL,                   /* sync_post */
  68         _bus_dmamem_alloc,
  69         _bus_dmamem_free,
  70         _bus_dmamem_map,
  71         _bus_dmamem_unmap,
  72         _bus_dmamem_mmap
  73 };
  74