/* $NetBSD: octeon_dma.c,v 1.2.24.1 2019/12/18 20:04:34 martin Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 THE FOUNDATION OR CONTRIBUTORS * 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. */ /* * Platform-specific DMA support for the MIPS OCTEON. Copied from MALTA code. */ #include __KERNEL_RCSID(0, "$NetBSD: octeon_dma.c,v 1.2.24.1 2019/12/18 20:04:34 martin Exp $"); #include #include #include #define _MIPS_BUS_DMA_PRIVATE #include #include void octeon_dma_init(struct octeon_config *mcp) { bus_dma_tag_t t; /* XXX need 32bit tag? */ t = &mcp->mc_iobus_dmat; t->_cookie = mcp; t->_wbase = 0; t->_bounce_alloc_lo = 0; t->_bounce_alloc_hi = 0; t->_dmamap_ops = mips_bus_dmamap_ops; t->_dmamem_ops = mips_bus_dmamem_ops; t->_dmatag_ops = mips_bus_dmatag_ops; /* XXX struct copy */ mcp->mc_bootbus_dmat = mcp->mc_iobus_dmat; mcp->mc_core1_dmat = mcp->mc_iobus_dmat; mcp->mc_fpa_dmat = mcp->mc_iobus_dmat; #ifdef __mips_n32 mcp->mc_fpa_dmat._bounce_alloc_hi = round_page(MIPS_PHYS_MASK); #endif }