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