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