84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/* $NetBSD: int_bus_dma.c,v 1.11 2002/08/17 20:46:28 thorpej Exp $ */
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/*
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* Copyright (c) 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PCI DMA support for the ARM Integrator.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <uvm/uvm_extern.h>
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#define _ARM32_BUS_DMA_PRIVATE
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#include <evbarm/integrator/int_bus_dma.h>
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static struct arm32_dma_range integrator_dma_ranges[1];
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void
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integrator_pci_dma_init(bus_dma_tag_t dmat)
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{
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struct arm32_dma_range *dr = integrator_dma_ranges;
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extern paddr_t physical_start, physical_end;
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dr->dr_sysbase = physical_start;
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dr->dr_busbase = LOCAL_TO_CM_ALIAS(dr->dr_sysbase);
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dr->dr_len = physical_end - physical_start;
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dmat->_ranges = dr;
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dmat->_nranges = 1;
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dmat->_dmamap_create = _bus_dmamap_create;
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dmat->_dmamap_destroy = _bus_dmamap_destroy;
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dmat->_dmamap_load = _bus_dmamap_load;
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dmat->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
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dmat->_dmamap_load_uio = _bus_dmamap_load_uio;
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dmat->_dmamap_load_raw = _bus_dmamap_load_raw;
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dmat->_dmamap_unload = _bus_dmamap_unload;
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dmat->_dmamap_sync_pre = _bus_dmamap_sync;
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dmat->_dmamap_sync_post = NULL;
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dmat->_dmamem_alloc = _bus_dmamem_alloc;
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dmat->_dmamem_free = _bus_dmamem_free;
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dmat->_dmamem_map = _bus_dmamem_map;
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dmat->_dmamem_unmap = _bus_dmamem_unmap;
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dmat->_dmamem_mmap = _bus_dmamem_mmap;
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}
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