0bb183ed8d
relevant and is unused. It's also getting in the way of progress in some admittedly minor ways. Better to retire it to reduce the burden on the project. Discussed on: freebsd-mips@ Differential Revision: https://reviews.freebsd.org/D18543
745 lines
17 KiB
C
745 lines
17 KiB
C
/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */
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/*-
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* $Id: bus.h,v 1.6 2007/08/09 11:23:32 katta Exp $
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*
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD AND BSD-4-Clause
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*
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS
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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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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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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 by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: src/sys/alpha/include/bus.h,v 1.5 1999/08/28 00:38:40 peter
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/ktr.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <vm/vm_kern.h>
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#include <vm/vm_extern.h>
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#include <machine/bus.h>
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#include <machine/cache.h>
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static struct bus_space generic_space = {
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/* cookie */
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.bs_cookie = (void *) 0,
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/* mapping/unmapping */
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.bs_map = generic_bs_map,
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.bs_unmap = generic_bs_unmap,
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.bs_subregion = generic_bs_subregion,
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/* allocation/deallocation */
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.bs_alloc = generic_bs_alloc,
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.bs_free = generic_bs_free,
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/* barrier */
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.bs_barrier = generic_bs_barrier,
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/* read (single) */
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.bs_r_1 = generic_bs_r_1,
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.bs_r_2 = generic_bs_r_2,
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.bs_r_4 = generic_bs_r_4,
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.bs_r_8 = generic_bs_r_8,
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/* read multiple */
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.bs_rm_1 = generic_bs_rm_1,
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.bs_rm_2 = generic_bs_rm_2,
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.bs_rm_4 = generic_bs_rm_4,
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.bs_rm_8 = generic_bs_rm_8,
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/* read region */
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.bs_rr_1 = generic_bs_rr_1,
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.bs_rr_2 = generic_bs_rr_2,
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.bs_rr_4 = generic_bs_rr_4,
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.bs_rr_8 = generic_bs_rr_8,
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/* write (single) */
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.bs_w_1 = generic_bs_w_1,
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.bs_w_2 = generic_bs_w_2,
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.bs_w_4 = generic_bs_w_4,
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.bs_w_8 = generic_bs_w_8,
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/* write multiple */
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.bs_wm_1 = generic_bs_wm_1,
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.bs_wm_2 = generic_bs_wm_2,
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.bs_wm_4 = generic_bs_wm_4,
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.bs_wm_8 = generic_bs_wm_8,
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/* write region */
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.bs_wr_1 = generic_bs_wr_1,
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.bs_wr_2 = generic_bs_wr_2,
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.bs_wr_4 = generic_bs_wr_4,
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.bs_wr_8 = generic_bs_wr_8,
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/* set multiple */
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.bs_sm_1 = generic_bs_sm_1,
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.bs_sm_2 = generic_bs_sm_2,
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.bs_sm_4 = generic_bs_sm_4,
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.bs_sm_8 = generic_bs_sm_8,
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/* set region */
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.bs_sr_1 = generic_bs_sr_1,
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.bs_sr_2 = generic_bs_sr_2,
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.bs_sr_4 = generic_bs_sr_4,
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.bs_sr_8 = generic_bs_sr_8,
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/* copy */
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.bs_c_1 = generic_bs_c_1,
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.bs_c_2 = generic_bs_c_2,
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.bs_c_4 = generic_bs_c_4,
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.bs_c_8 = generic_bs_c_8,
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/* read (single) stream */
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.bs_r_1_s = generic_bs_r_1,
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.bs_r_2_s = generic_bs_r_2,
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.bs_r_4_s = generic_bs_r_4,
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.bs_r_8_s = generic_bs_r_8,
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/* read multiple stream */
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.bs_rm_1_s = generic_bs_rm_1,
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.bs_rm_2_s = generic_bs_rm_2,
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.bs_rm_4_s = generic_bs_rm_4,
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.bs_rm_8_s = generic_bs_rm_8,
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/* read region stream */
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.bs_rr_1_s = generic_bs_rr_1,
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.bs_rr_2_s = generic_bs_rr_2,
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.bs_rr_4_s = generic_bs_rr_4,
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.bs_rr_8_s = generic_bs_rr_8,
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/* write (single) stream */
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.bs_w_1_s = generic_bs_w_1,
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.bs_w_2_s = generic_bs_w_2,
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.bs_w_4_s = generic_bs_w_4,
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.bs_w_8_s = generic_bs_w_8,
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/* write multiple stream */
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.bs_wm_1_s = generic_bs_wm_1,
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.bs_wm_2_s = generic_bs_wm_2,
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.bs_wm_4_s = generic_bs_wm_4,
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.bs_wm_8_s = generic_bs_wm_8,
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/* write region stream */
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.bs_wr_1_s = generic_bs_wr_1,
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.bs_wr_2_s = generic_bs_wr_2,
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.bs_wr_4_s = generic_bs_wr_4,
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.bs_wr_8_s = generic_bs_wr_8,
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};
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/* Ultra-gross kludge */
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#if defined(CPU_CNMIPS) && (defined(__mips_n32) || defined(__mips_o32))
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#include <contrib/octeon-sdk/cvmx.h>
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#define rd8(a) cvmx_read64_uint8(a)
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#define rd16(a) cvmx_read64_uint16(a)
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#define rd32(a) cvmx_read64_uint32(a)
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#define rd64(a) cvmx_read64_uint64(a)
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#define wr8(a, v) cvmx_write64_uint8(a, v)
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#define wr16(a, v) cvmx_write64_uint16(a, v)
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#define wr32(a, v) cvmx_write64_uint32(a, v)
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#define wr64(a, v) cvmx_write64_uint64(a, v)
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#else
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#define rd8(a) readb(a)
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#define rd16(a) readw(a)
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#define rd32(a) readl(a)
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#ifdef readq
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#define rd64(a) readq((a))
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#endif
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#define wr8(a, v) writeb(a, v)
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#define wr16(a, v) writew(a, v)
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#define wr32(a, v) writel(a, v)
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#ifdef writeq
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#define wr64(a, v) writeq(a, v)
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#endif
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#endif
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/* generic bus_space tag */
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bus_space_tag_t mips_bus_space_generic = &generic_space;
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int
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generic_bs_map(void *t __unused, bus_addr_t addr,
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bus_size_t size, int flags __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = (bus_space_handle_t)pmap_mapdev((vm_paddr_t)addr,
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(vm_size_t)size);
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return (0);
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}
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void
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generic_bs_unmap(void *t __unused, bus_space_handle_t bh,
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bus_size_t size)
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{
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pmap_unmapdev((vm_offset_t)bh, (vm_size_t)size);
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}
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int
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generic_bs_subregion(void *t __unused, bus_space_handle_t handle,
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bus_size_t offset, bus_size_t size __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = handle + offset;
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return (0);
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}
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int
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generic_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend,
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bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
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bus_addr_t *bpap, bus_space_handle_t *bshp)
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{
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panic("%s: not implemented", __func__);
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}
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void
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generic_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size)
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{
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panic("%s: not implemented", __func__);
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}
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uint8_t
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generic_bs_r_1(void *t, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (rd8(handle + offset));
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}
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uint16_t
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generic_bs_r_2(void *t, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (rd16(handle + offset));
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}
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uint32_t
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generic_bs_r_4(void *t, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return (rd32(handle + offset));
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}
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uint64_t
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generic_bs_r_8(void *t, bus_space_handle_t handle, bus_size_t offset)
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{
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#ifdef rd64
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return(rd64(handle + offset));
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#else
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panic("%s: not implemented", __func__);
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#endif
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}
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void
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generic_bs_rm_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint8_t *addr, size_t count)
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{
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while (count--)
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*addr++ = rd8(bsh + offset);
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}
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void
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generic_bs_rm_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint16_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--)
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*addr++ = rd16(baddr);
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}
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void
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generic_bs_rm_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint32_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--)
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*addr++ = rd32(baddr);
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}
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void
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generic_bs_rm_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
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uint64_t *addr, size_t count)
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{
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#ifdef rd64
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bus_addr_t baddr = bsh + offset;
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while (count--)
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*addr++ = rd64(baddr);
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#else
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panic("%s: not implemented", __func__);
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#endif
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}
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/*
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* Read `count' 1, 2, 4, or 8 byte quantities from bus space
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* described by tag/handle and starting at `offset' and copy into
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* buffer provided.
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*/
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void
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generic_bs_rr_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint8_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--) {
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*addr++ = rd8(baddr);
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baddr += 1;
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}
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}
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void
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generic_bs_rr_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint16_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--) {
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*addr++ = rd16(baddr);
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baddr += 2;
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}
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}
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void
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generic_bs_rr_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint32_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--) {
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*addr++ = rd32(baddr);
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baddr += 4;
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}
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}
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void
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generic_bs_rr_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
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uint64_t *addr, size_t count)
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{
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#ifdef rd64
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bus_addr_t baddr = bsh + offset;
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while (count--) {
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*addr++ = rd64(baddr);
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baddr += 8;
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}
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#else
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panic("%s: not implemented", __func__);
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#endif
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}
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/*
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* Write the 1, 2, 4, or 8 byte value `value' to bus space
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* described by tag/handle/offset.
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*/
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void
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generic_bs_w_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint8_t value)
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{
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wr8(bsh + offset, value);
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}
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void
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generic_bs_w_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint16_t value)
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{
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wr16(bsh + offset, value);
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}
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void
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generic_bs_w_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint32_t value)
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{
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wr32(bsh + offset, value);
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}
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void
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generic_bs_w_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
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uint64_t value)
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{
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#ifdef wr64
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wr64(bsh + offset, value);
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#else
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panic("%s: not implemented", __func__);
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#endif
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}
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/*
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* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
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* provided to bus space described by tag/handle/offset.
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*/
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void
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generic_bs_wm_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, const uint8_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--)
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wr8(baddr, *addr++);
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}
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void
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generic_bs_wm_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, const uint16_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--)
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wr16(baddr, *addr++);
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}
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void
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generic_bs_wm_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, const uint32_t *addr, size_t count)
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{
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bus_addr_t baddr = bsh + offset;
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while (count--)
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wr32(baddr, *addr++);
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}
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void
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generic_bs_wm_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
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const uint64_t *addr, size_t count)
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{
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#ifdef wr64
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bus_addr_t baddr = bsh + offset;
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while (count--)
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wr64(baddr, *addr++);
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#else
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panic("%s: not implemented", __func__);
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#endif
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}
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/*
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* Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
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* to bus space described by tag/handle starting at `offset'.
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*/
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void
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generic_bs_wr_1(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, const uint8_t *addr, size_t count)
|
|
{
|
|
bus_addr_t baddr = bsh + offset;
|
|
|
|
while (count--) {
|
|
wr8(baddr, *addr++);
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|
baddr += 1;
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_wr_2(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, const uint16_t *addr, size_t count)
|
|
{
|
|
bus_addr_t baddr = bsh + offset;
|
|
|
|
while (count--) {
|
|
wr16(baddr, *addr++);
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|
baddr += 2;
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_wr_4(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, const uint32_t *addr, size_t count)
|
|
{
|
|
bus_addr_t baddr = bsh + offset;
|
|
|
|
while (count--) {
|
|
wr32(baddr, *addr++);
|
|
baddr += 4;
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_wr_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
|
|
const uint64_t *addr, size_t count)
|
|
{
|
|
#ifdef wr64
|
|
bus_addr_t baddr = bsh + offset;
|
|
|
|
while (count--) {
|
|
wr64(baddr, *addr++);
|
|
baddr += 8;
|
|
}
|
|
#else
|
|
panic("%s: not implemented", __func__);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Write the 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle/offset `count' times.
|
|
*/
|
|
void
|
|
generic_bs_sm_1(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint8_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
while (count--)
|
|
wr8(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sm_2(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint16_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
while (count--)
|
|
wr16(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sm_4(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint32_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
while (count--)
|
|
wr32(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sm_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
|
|
uint64_t value, size_t count)
|
|
{
|
|
#ifdef wr64
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
while (count--)
|
|
wr64(addr, value);
|
|
#else
|
|
panic("%s: not implemented", __func__);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle starting at `offset'.
|
|
*/
|
|
void
|
|
generic_bs_sr_1(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint8_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
for (; count != 0; count--, addr++)
|
|
wr8(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sr_2(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint16_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
for (; count != 0; count--, addr += 2)
|
|
wr16(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sr_4(void *t, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint32_t value, size_t count)
|
|
{
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
for (; count != 0; count--, addr += 4)
|
|
wr32(addr, value);
|
|
}
|
|
|
|
void
|
|
generic_bs_sr_8(void *t, bus_space_handle_t bsh, bus_size_t offset,
|
|
uint64_t value, size_t count)
|
|
{
|
|
#ifdef wr64
|
|
bus_addr_t addr = bsh + offset;
|
|
|
|
for (; count != 0; count--, addr += 8)
|
|
wr64(addr, value);
|
|
#else
|
|
panic("%s: not implemented", __func__);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
|
|
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
|
|
*/
|
|
void
|
|
generic_bs_c_1(void *t, bus_space_handle_t bsh1,
|
|
bus_size_t off1, bus_space_handle_t bsh2,
|
|
bus_size_t off2, size_t count)
|
|
{
|
|
bus_addr_t addr1 = bsh1 + off1;
|
|
bus_addr_t addr2 = bsh2 + off2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1++, addr2++)
|
|
wr8(addr2, rd8(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += (count - 1), addr2 += (count - 1);
|
|
count != 0; count--, addr1--, addr2--)
|
|
wr8(addr2, rd8(addr1));
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_c_2(void *t, bus_space_handle_t bsh1,
|
|
bus_size_t off1, bus_space_handle_t bsh2,
|
|
bus_size_t off2, size_t count)
|
|
{
|
|
bus_addr_t addr1 = bsh1 + off1;
|
|
bus_addr_t addr2 = bsh2 + off2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 2, addr2 += 2)
|
|
wr16(addr2, rd16(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
|
|
count != 0; count--, addr1 -= 2, addr2 -= 2)
|
|
wr16(addr2, rd16(addr1));
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_c_4(void *t, bus_space_handle_t bsh1,
|
|
bus_size_t off1, bus_space_handle_t bsh2,
|
|
bus_size_t off2, size_t count)
|
|
{
|
|
bus_addr_t addr1 = bsh1 + off1;
|
|
bus_addr_t addr2 = bsh2 + off2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 4, addr2 += 4)
|
|
wr32(addr2, rd32(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
|
|
count != 0; count--, addr1 -= 4, addr2 -= 4)
|
|
wr32(addr2, rd32(addr1));
|
|
}
|
|
}
|
|
|
|
void
|
|
generic_bs_c_8(void *t, bus_space_handle_t bsh1, bus_size_t off1,
|
|
bus_space_handle_t bsh2, bus_size_t off2, size_t count)
|
|
{
|
|
#if defined(rd64) && defined(wr64)
|
|
bus_addr_t addr1 = bsh1 + off1;
|
|
bus_addr_t addr2 = bsh2 + off2;
|
|
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 8, addr2 += 8)
|
|
wr64(addr2, rd64(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 8 * (count - 1), addr2 += 8 * (count - 1);
|
|
count != 0; count--, addr1 -= 8, addr2 -= 8)
|
|
wr64(addr2, rd64(addr1));
|
|
}
|
|
#else
|
|
panic("%s: not implemented", __func__);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
generic_bs_barrier(void *t __unused,
|
|
bus_space_handle_t bsh __unused,
|
|
bus_size_t offset __unused, bus_size_t len __unused,
|
|
int flags)
|
|
{
|
|
#if 0
|
|
if (flags & BUS_SPACE_BARRIER_WRITE)
|
|
mips_dcache_wbinv_all();
|
|
#endif
|
|
if (flags & BUS_SPACE_BARRIER_READ)
|
|
rmb();
|
|
if (flags & BUS_SPACE_BARRIER_WRITE)
|
|
wmb();
|
|
}
|