NetBSD/sys/arch/ofppc/firepower/firepower_dma.c

104 lines
3.7 KiB
C

/* $NetBSD: firepower_dma.c,v 1.1 2001/10/29 22:28:39 thorpej Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* DMA support for Firepower systems. Nothing special, here. We just
* use the generic PowerPC DMA routines for PCI DMA, and supply a set
* of bounce-capable DMA routines for ISA DMA.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <uvm/uvm_extern.h>
#define _POWERPC_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <ofppc/firepower/firepowervar.h>
void
firepower_dma_init(struct firepower_config *cp)
{
bus_dma_tag_t t;
/*
* Initialize the DMA tag used for PCI DMA.
*/
t = &cp->c_dmat_pci;
t->_cookie = NULL; /* not used */
t->_dmamap_create = _bus_dmamap_create;
t->_dmamap_destroy = _bus_dmamap_destroy;
t->_dmamap_load = _bus_dmamap_load;
t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
t->_dmamap_load_uio = _bus_dmamap_load_uio;
t->_dmamap_load_raw = _bus_dmamap_load_raw;
t->_dmamap_unload = _bus_dmamap_unload;
t->_dmamap_sync = _bus_dmamap_sync;
t->_dmamem_alloc = _bus_dmamem_alloc;
t->_dmamem_free = _bus_dmamem_free;
t->_dmamem_map = _bus_dmamem_map;
t->_dmamem_unmap = _bus_dmamem_unmap;
t->_dmamem_mmap = _bus_dmamem_mmap;
#if 0
/*
* Initialize the DMA tag used for ISA DMA.
*/
t = &cp->c_dmat_isa;
t->_cookie = NULL; /* not used */
t->_dmamap_create = isadma_bounce_dmamap_create;
t->_dmamap_destroy = isadma_bounce_dmamap_destroy;
t->_dmamap_load = isadma_bounce_dmamap_load;
t->_dmamap_load_mbuf = isadma_bounce_dmamap_load_mbuf;
t->_dmamap_load_uio = isadma_bounce_dmamap_load_uio;
t->_dmamap_load_raw = isadma_bounce_dmamap_load_raw;
t->_dmamap_unload = isadma_bounce_dmamap_unload;
t->_dmamap_sync = isadma_bounce_dmamap_sync;
t->_dmamem_alloc = isadma_bounce_dmamem_alloc;
t->_dmamem_free = _bus_dmamem_free;
t->_dmamem_map = _bus_dmamem_map;
t->_dmamem_unmap = _bus_dmamem_unmap;
t->_dmamem_mmap = _bus_dmamem_mmap;
#endif
}