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      1 /*	$NetBSD: gemini_dma.c,v 1.4 2022/09/27 06:36:41 skrll Exp $	*/
      2 
      3 /* adapted from:
      4  *	NetBSD: pxa2x0_dma.c,v 1.4 2005/12/11 12:16:51 christos Exp
      5  */
      6 
      7 /*
      8  * Copyright (c) 2002  Genetec Corporation.  All rights reserved.
      9  * Written by Hiroyuki Bessho for Genetec Corporation.
     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 for the NetBSD Project by
     22  *	Genetec Corporation.
     23  * 4. The name of Genetec Corporation may not be used to endorse or
     24  *    promote products derived from this software without specific prior
     25  *    written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
     28  * 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 GENETEC CORPORATION
     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 /*
     41  * bus dma tag for PXA2[15]0 processor.
     42  * (Currently used only for LCD frame buffer)
     43  */
     44 
     45 #include <sys/cdefs.h>
     46 __KERNEL_RCSID(0, "$NetBSD: gemini_dma.c,v 1.4 2022/09/27 06:36:41 skrll Exp $");
     47 
     48 #include <sys/param.h>
     49 #include <sys/systm.h>
     50 #include <sys/device.h>
     51 #include <sys/mbuf.h>
     52 
     53 #include <uvm/uvm_extern.h>
     54 
     55 #define	_ARM32_BUS_DMA_PRIVATE
     56 #include <sys/bus.h>
     57 
     58 struct arm32_bus_dma_tag gemini_bus_dma_tag = {
     59 	_BUS_DMAMAP_FUNCS,
     60 	_BUS_DMAMEM_FUNCS,
     61 	_BUS_DMATAG_FUNCS,
     62 };
     63 
     64