1 /* $NetBSD: algor_p4032_dma.c,v 1.3 2001/06/22 05:57:26 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Platform-specific DMA support for the Algorithmics P-4032. 41 */ 42 43 #include <sys/param.h> 44 45 #define _ALGOR_BUS_DMA_PRIVATE 46 #include <machine/bus.h> 47 48 #include <algor/algor/algor_p4032reg.h> 49 #include <algor/algor/algor_p4032var.h> 50 51 #include <algor/pci/vtpbcvar.h> 52 53 void 54 algor_p4032_dma_init(struct p4032_config *acp) 55 { 56 bus_dma_tag_t t; 57 58 /* 59 * Initialize the DMA tag used for PCI DMA. 60 */ 61 t = &acp->ac_pci_dmat; 62 t->_cookie = acp; 63 t->_wbase = vtpbc_configuration.vt_dma_winbase; 64 t->_physbase = P4032_DMA_PCI_PHYSBASE; 65 t->_wsize = P4032_DMA_PCI_SIZE; 66 t->_dmamap_create = _bus_dmamap_create; 67 t->_dmamap_destroy = _bus_dmamap_destroy; 68 t->_dmamap_load = _bus_dmamap_load; 69 t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf; 70 t->_dmamap_load_uio = _bus_dmamap_load_uio; 71 t->_dmamap_load_raw = _bus_dmamap_load_raw; 72 t->_dmamap_unload = _bus_dmamap_unload; 73 t->_dmamap_sync = _bus_dmamap_sync; 74 75 t->_dmamem_alloc = _bus_dmamem_alloc; 76 t->_dmamem_free = _bus_dmamem_free; 77 t->_dmamem_map = _bus_dmamem_map; 78 t->_dmamem_unmap = _bus_dmamem_unmap; 79 t->_dmamem_mmap = _bus_dmamem_mmap; 80 81 /* 82 * Initialize the DMA tag used for PCI on-board Ethernet DMA. 83 * This window has pre-fetching enabled (hooray for broken 84 * PCI bus controllers). 85 */ 86 t = &acp->ac_pci_pf_dmat; 87 t->_cookie = acp; 88 t->_wbase = P4032_DMA_PCI_PF_PCIBASE; 89 t->_physbase = P4032_DMA_PCI_PHYSBASE; 90 t->_wsize = P4032_DMA_PCI_SIZE; 91 t->_dmamap_create = _bus_dmamap_create; 92 t->_dmamap_destroy = _bus_dmamap_destroy; 93 t->_dmamap_load = _bus_dmamap_load; 94 t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf; 95 t->_dmamap_load_uio = _bus_dmamap_load_uio; 96 t->_dmamap_load_raw = _bus_dmamap_load_raw; 97 t->_dmamap_unload = _bus_dmamap_unload; 98 t->_dmamap_sync = _bus_dmamap_sync; 99 100 t->_dmamem_alloc = _bus_dmamem_alloc; 101 t->_dmamem_free = _bus_dmamem_free; 102 t->_dmamem_map = _bus_dmamem_map; 103 t->_dmamem_unmap = _bus_dmamem_unmap; 104 t->_dmamem_mmap = _bus_dmamem_mmap; 105 } 106