evbarm/integrator/int_bus_dma.c

1.7.2.2   gehenna /*	$NetBSD: int_bus_dma.c,v 1.7.2.2 2002/08/30 00:19:33 gehenna Exp $	*/
    1.1  rearnsha
1.7.2.2   gehenna /*
1.7.2.2   gehenna  * Copyright (c) 2002 Wasabi Systems, Inc.
    1.1  rearnsha  * All rights reserved.
    1.1  rearnsha  *
1.7.2.2   gehenna  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
    1.1  rearnsha  *
    1.1  rearnsha  * Redistribution and use in source and binary forms, with or without
    1.1  rearnsha  * modification, are permitted provided that the following conditions
    1.1  rearnsha  * are met:
    1.1  rearnsha  * 1. Redistributions of source code must retain the above copyright
    1.1  rearnsha  *    notice, this list of conditions and the following disclaimer.
    1.1  rearnsha  * 2. Redistributions in binary form must reproduce the above copyright
    1.1  rearnsha  *    notice, this list of conditions and the following disclaimer in the
    1.1  rearnsha  *    documentation and/or other materials provided with the distribution.
    1.1  rearnsha  * 3. All advertising materials mentioning features or use of this software
    1.1  rearnsha  *    must display the following acknowledgement:
1.7.2.2   gehenna  *	This product includes software developed for the NetBSD Project by
1.7.2.2   gehenna  *	Wasabi Systems, Inc.
1.7.2.2   gehenna  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
1.7.2.2   gehenna  *    or promote products derived from this software without specific prior
1.7.2.2   gehenna  *    written permission.
    1.1  rearnsha  *
1.7.2.2   gehenna  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
1.7.2.2   gehenna  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
    1.1  rearnsha  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.7.2.2   gehenna  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
    1.1  rearnsha  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    1.1  rearnsha  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    1.1  rearnsha  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    1.1  rearnsha  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    1.1  rearnsha  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    1.1  rearnsha  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    1.1  rearnsha  * POSSIBILITY OF SUCH DAMAGE.
    1.1  rearnsha  */
1.7.2.2   gehenna
1.7.2.2   gehenna /*
1.7.2.2   gehenna  * PCI DMA support for the ARM Integrator.
    1.1  rearnsha  */
    1.1  rearnsha
    1.1  rearnsha #include <sys/param.h>
    1.1  rearnsha #include <sys/systm.h>
1.7.2.2   gehenna #include <sys/device.h>
    1.1  rearnsha #include <sys/malloc.h>
    1.1  rearnsha #include <sys/mbuf.h>
    1.1  rearnsha
    1.1  rearnsha #include <uvm/uvm_extern.h>
    1.1  rearnsha
1.7.2.2   gehenna #define	_ARM32_BUS_DMA_PRIVATE
    1.1  rearnsha #include <evbarm/integrator/int_bus_dma.h>
    1.1  rearnsha
1.7.2.2   gehenna static struct arm32_dma_range integrator_dma_ranges[1];
    1.1  rearnsha
    1.1  rearnsha void
1.7.2.2   gehenna integrator_pci_dma_init(bus_dma_tag_t dmat)
    1.1  rearnsha {
1.7.2.2   gehenna 	struct arm32_dma_range *dr = integrator_dma_ranges;
1.7.2.2   gehenna 	extern paddr_t physical_start, physical_end;
    1.1  rearnsha
1.7.2.2   gehenna 	dr->dr_sysbase = physical_start;
1.7.2.2   gehenna 	dr->dr_busbase = LOCAL_TO_CM_ALIAS(dr->dr_sysbase);
1.7.2.2   gehenna 	dr->dr_len = physical_end - physical_start;
1.7.2.2   gehenna
1.7.2.2   gehenna 	dmat->_ranges = dr;
1.7.2.2   gehenna 	dmat->_nranges = 1;
1.7.2.2   gehenna
1.7.2.2   gehenna 	dmat->_dmamap_create = _bus_dmamap_create;
1.7.2.2   gehenna 	dmat->_dmamap_destroy = _bus_dmamap_destroy;
1.7.2.2   gehenna 	dmat->_dmamap_load = _bus_dmamap_load;
1.7.2.2   gehenna 	dmat->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
1.7.2.2   gehenna 	dmat->_dmamap_load_uio = _bus_dmamap_load_uio;
1.7.2.2   gehenna 	dmat->_dmamap_load_raw = _bus_dmamap_load_raw;
1.7.2.2   gehenna 	dmat->_dmamap_unload = _bus_dmamap_unload;
1.7.2.2   gehenna 	dmat->_dmamap_sync_pre = _bus_dmamap_sync;
1.7.2.2   gehenna 	dmat->_dmamap_sync_post = NULL;
1.7.2.2   gehenna
1.7.2.2   gehenna 	dmat->_dmamem_alloc = _bus_dmamem_alloc;
1.7.2.2   gehenna 	dmat->_dmamem_free = _bus_dmamem_free;
1.7.2.2   gehenna 	dmat->_dmamem_map = _bus_dmamem_map;
1.7.2.2   gehenna 	dmat->_dmamem_unmap = _bus_dmamem_unmap;
1.7.2.2   gehenna 	dmat->_dmamem_mmap = _bus_dmamem_mmap;
    1.1  rearnsha }