1 /* $NetBSD: int_bus_dma.c,v 1.11 2002/08/17 20:46:28 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * PCI DMA support for the ARM Integrator. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 #include <sys/mbuf.h> 47 48 #include <uvm/uvm_extern.h> 49 50 #define _ARM32_BUS_DMA_PRIVATE 51 #include <evbarm/integrator/int_bus_dma.h> 52 53 static struct arm32_dma_range integrator_dma_ranges[1]; 54 55 void 56 integrator_pci_dma_init(bus_dma_tag_t dmat) 57 { 58 struct arm32_dma_range *dr = integrator_dma_ranges; 59 extern paddr_t physical_start, physical_end; 60 61 dr->dr_sysbase = physical_start; 62 dr->dr_busbase = LOCAL_TO_CM_ALIAS(dr->dr_sysbase); 63 dr->dr_len = physical_end - physical_start; 64 65 dmat->_ranges = dr; 66 dmat->_nranges = 1; 67 68 dmat->_dmamap_create = _bus_dmamap_create; 69 dmat->_dmamap_destroy = _bus_dmamap_destroy; 70 dmat->_dmamap_load = _bus_dmamap_load; 71 dmat->_dmamap_load_mbuf = _bus_dmamap_load_mbuf; 72 dmat->_dmamap_load_uio = _bus_dmamap_load_uio; 73 dmat->_dmamap_load_raw = _bus_dmamap_load_raw; 74 dmat->_dmamap_unload = _bus_dmamap_unload; 75 dmat->_dmamap_sync_pre = _bus_dmamap_sync; 76 dmat->_dmamap_sync_post = NULL; 77 78 dmat->_dmamem_alloc = _bus_dmamem_alloc; 79 dmat->_dmamem_free = _bus_dmamem_free; 80 dmat->_dmamem_map = _bus_dmamem_map; 81 dmat->_dmamem_unmap = _bus_dmamem_unmap; 82 dmat->_dmamem_mmap = _bus_dmamem_mmap; 83 } 84