576 lines
13 KiB
C
576 lines
13 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 <sys/endian.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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#include <mips/cavium/octopcivar.h>
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#include <contrib/octeon-sdk/cvmx.h>
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static struct bus_space octopci_space = {
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/* cookie */
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(void *) 0,
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/* mapping/unmapping */
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octopci_bs_map,
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octopci_bs_unmap,
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octopci_bs_subregion,
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/* allocation/deallocation */
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NULL,
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NULL,
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/* barrier */
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octopci_bs_barrier,
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/* read (single) */
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octopci_bs_r_1,
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octopci_bs_r_2,
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octopci_bs_r_4,
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NULL,
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/* read multiple */
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octopci_bs_rm_1,
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octopci_bs_rm_2,
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octopci_bs_rm_4,
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NULL,
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/* read region */
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octopci_bs_rr_1,
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octopci_bs_rr_2,
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octopci_bs_rr_4,
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NULL,
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/* write (single) */
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octopci_bs_w_1,
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octopci_bs_w_2,
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octopci_bs_w_4,
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NULL,
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/* write multiple */
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octopci_bs_wm_1,
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octopci_bs_wm_2,
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octopci_bs_wm_4,
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NULL,
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/* write region */
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NULL,
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octopci_bs_wr_2,
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octopci_bs_wr_4,
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NULL,
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/* set multiple */
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NULL,
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NULL,
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NULL,
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NULL,
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/* set region */
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NULL,
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octopci_bs_sr_2,
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octopci_bs_sr_4,
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NULL,
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/* copy */
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NULL,
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octopci_bs_c_2,
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NULL,
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NULL,
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/* read (single) stream */
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octopci_bs_r_1,
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octopci_bs_r_2,
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octopci_bs_r_4,
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NULL,
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/* read multiple stream */
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octopci_bs_rm_1,
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octopci_bs_rm_2,
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octopci_bs_rm_4,
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NULL,
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/* read region stream */
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octopci_bs_rr_1,
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octopci_bs_rr_2,
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octopci_bs_rr_4,
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NULL,
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/* write (single) stream */
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octopci_bs_w_1,
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octopci_bs_w_2,
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octopci_bs_w_4,
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NULL,
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/* write multiple stream */
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octopci_bs_wm_1,
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octopci_bs_wm_2,
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octopci_bs_wm_4,
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NULL,
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/* write region stream */
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NULL,
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octopci_bs_wr_2,
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octopci_bs_wr_4,
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NULL,
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};
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#define rd8(a) cvmx_read64_uint8(a)
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#define rd16(a) le16toh(cvmx_read64_uint16(a))
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#define rd32(a) le32toh(cvmx_read64_uint32(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, htole16(v))
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#define wr32(a, v) cvmx_write64_uint32(a, htole32(v))
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/* octopci bus_space tag */
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bus_space_tag_t octopci_bus_space = &octopci_space;
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int
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octopci_bs_map(void *t __unused, bus_addr_t addr,
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bus_size_t size __unused, int flags __unused,
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bus_space_handle_t *bshp)
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{
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*bshp = addr;
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return (0);
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}
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void
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octopci_bs_unmap(void *t __unused, bus_space_handle_t bh __unused,
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bus_size_t size __unused)
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{
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/* Do nothing */
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}
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int
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octopci_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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uint8_t
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octopci_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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octopci_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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octopci_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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void
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octopci_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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octopci_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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octopci_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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/*
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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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octopci_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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octopci_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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octopci_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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/*
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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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octopci_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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octopci_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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octopci_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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/*
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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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octopci_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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octopci_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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octopci_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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/*
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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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octopci_bs_wr_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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baddr += 1;
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}
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}
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void
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octopci_bs_wr_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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baddr += 2;
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}
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}
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void
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octopci_bs_wr_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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baddr += 4;
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}
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}
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/*
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* Write the 1, 2, 4, or 8 byte value `val' to bus space described
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* by tag/handle/offset `count' times.
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*/
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void
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octopci_bs_sm_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint8_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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while (count--)
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wr8(addr, value);
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}
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void
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octopci_bs_sm_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint16_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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while (count--)
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wr16(addr, value);
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}
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void
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octopci_bs_sm_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint32_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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while (count--)
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wr32(addr, value);
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}
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/*
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* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
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* by tag/handle starting at `offset'.
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*/
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void
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octopci_bs_sr_1(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint8_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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for (; count != 0; count--, addr++)
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wr8(addr, value);
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}
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void
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octopci_bs_sr_2(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint16_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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for (; count != 0; count--, addr += 2)
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wr16(addr, value);
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}
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void
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octopci_bs_sr_4(void *t, bus_space_handle_t bsh,
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bus_size_t offset, uint32_t value, size_t count)
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{
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bus_addr_t addr = bsh + offset;
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for (; count != 0; count--, addr += 4)
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wr32(addr, value);
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}
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/*
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* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
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* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
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*/
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void
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octopci_bs_c_1(void *t, bus_space_handle_t bsh1,
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bus_size_t off1, bus_space_handle_t bsh2,
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bus_size_t off2, size_t count)
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{
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bus_addr_t addr1 = bsh1 + off1;
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bus_addr_t addr2 = bsh2 + off2;
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if (addr1 >= addr2) {
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/* src after dest: copy forward */
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for (; count != 0; count--, addr1++, addr2++)
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wr8(addr2, rd8(addr1));
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} else {
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/* dest after src: copy backwards */
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for (addr1 += (count - 1), addr2 += (count - 1);
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count != 0; count--, addr1--, addr2--)
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wr8(addr2, rd8(addr1));
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}
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}
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void
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octopci_bs_c_2(void *t, bus_space_handle_t bsh1,
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bus_size_t off1, bus_space_handle_t bsh2,
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bus_size_t off2, size_t count)
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{
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bus_addr_t addr1 = bsh1 + off1;
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bus_addr_t addr2 = bsh2 + off2;
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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
|
|
octopci_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
|
|
octopci_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
|
|
}
|