1/* $NetBSD: ixp425_pci_dma.c,v 1.4 2009/10/21 14:15:50 rmind Exp $ */ 2 3/* 4 * Copyright (c) 2003 5 * Ichiro FUKUHARA <ichiro@ichiro.org>. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> 31__KERNEL_RCSID(0, "$NetBSD: ixp425_pci_dma.c,v 1.4 2009/10/21 14:15:50 rmind Exp $"); 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/device.h> 36#include <sys/malloc.h> 37#include <sys/mbuf.h> 38 39#include <uvm/uvm_extern.h> 40 41#define _ARM32_BUS_DMA_PRIVATE 42#include <sys/bus.h> 43 44#include <arm/xscale/ixp425reg.h> 45#include <arm/xscale/ixp425var.h> 46 47void 48ixp425_pci_dma_init(struct ixp425_softc *sc) 49{ 50 extern paddr_t physical_start, physical_end; 51 52 bus_dma_tag_t dmat = &sc->ia_pci_dmat; 53 struct arm32_dma_range *dr = &sc->ia_pci_dma_range; 54 55 dmat->_ranges = dr; 56 dmat->_nranges = 1; 57 58 dr->dr_sysbase = physical_start; 59 dr->dr_busbase = physical_start; 60 dr->dr_len = physical_end - physical_start; 61 62 dmat->_dmamap_create = _bus_dmamap_create; 63 dmat->_dmamap_destroy = _bus_dmamap_destroy; 64 dmat->_dmamap_load = _bus_dmamap_load; 65 dmat->_dmamap_load_mbuf = _bus_dmamap_load_mbuf; 66 dmat->_dmamap_load_uio = _bus_dmamap_load_uio; 67 dmat->_dmamap_load_raw = _bus_dmamap_load_raw; 68 dmat->_dmamap_unload = _bus_dmamap_unload; 69 dmat->_dmamap_sync_pre = _bus_dmamap_sync; 70 dmat->_dmamap_sync_post = NULL; 71 72 dmat->_dmamem_alloc = _bus_dmamem_alloc; 73 dmat->_dmamem_free = _bus_dmamem_free; 74 dmat->_dmamem_map = _bus_dmamem_map; 75 dmat->_dmamem_unmap = _bus_dmamem_unmap; 76 dmat->_dmamem_mmap = _bus_dmamem_mmap; 77} 78