1 /* $NetBSD: malta_dma.c,v 1.7 2008/04/28 20:23:17 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Platform-specific DMA support for the MIPS Malta. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: malta_dma.c,v 1.7 2008/04/28 20:23:17 martin Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/device.h> 41 42 #define _MIPS_BUS_DMA_PRIVATE 43 #include <machine/bus.h> 44 45 #include <dev/isa/isavar.h> 46 47 #include <evbmips/malta/maltareg.h> 48 #include <evbmips/malta/maltavar.h> 49 50 void 51 malta_dma_init(struct malta_config *acp) 52 { 53 bus_dma_tag_t t; 54 55 /* 56 * Initialize the DMA tag used for PCI DMA. 57 */ 58 t = &acp->mc_pci_dmat; 59 t->_cookie = acp; 60 t->_wbase = MALTA_DMA_PCI_PCIBASE; 61 t->_physbase = MALTA_DMA_PCI_PHYSBASE; 62 t->_wsize = MALTA_DMA_PCI_SIZE; 63 t->_dmamap_create = _bus_dmamap_create; 64 t->_dmamap_destroy = _bus_dmamap_destroy; 65 t->_dmamap_load = _bus_dmamap_load; 66 t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf; 67 t->_dmamap_load_uio = _bus_dmamap_load_uio; 68 t->_dmamap_load_raw = _bus_dmamap_load_raw; 69 t->_dmamap_unload = _bus_dmamap_unload; 70 t->_dmamap_sync = _bus_dmamap_sync; 71 72 t->_dmamem_alloc = _bus_dmamem_alloc; 73 t->_dmamem_free = _bus_dmamem_free; 74 t->_dmamem_map = _bus_dmamem_map; 75 t->_dmamem_unmap = _bus_dmamem_unmap; 76 t->_dmamem_mmap = _bus_dmamem_mmap; 77 78 /* 79 * Initialize the DMA tag used for ISA DMA. 80 */ 81 t = &acp->mc_isa_dmat; 82 t->_cookie = acp; 83 t->_wbase = MALTA_DMA_ISA_PCIBASE; 84 t->_physbase = MALTA_DMA_ISA_PHYSBASE; 85 t->_wsize = MALTA_DMA_ISA_SIZE; 86 87 t->_dmamap_create = isadma_bounce_dmamap_create; 88 t->_dmamap_destroy = isadma_bounce_dmamap_destroy; 89 t->_dmamap_load = isadma_bounce_dmamap_load; 90 t->_dmamap_load_mbuf = isadma_bounce_dmamap_load_mbuf; 91 t->_dmamap_load_uio = isadma_bounce_dmamap_load_uio; 92 t->_dmamap_load_raw = isadma_bounce_dmamap_load_raw; 93 t->_dmamap_unload = isadma_bounce_dmamap_unload; 94 t->_dmamap_sync = isadma_bounce_dmamap_sync; 95 96 t->_dmamem_alloc = isadma_bounce_dmamem_alloc; 97 t->_dmamem_free = _bus_dmamem_free; 98 t->_dmamem_map = _bus_dmamem_map; 99 t->_dmamem_unmap = _bus_dmamem_unmap; 100 t->_dmamem_mmap = _bus_dmamem_mmap; 101 } 102