Merge Perforce chance 219924 to head:
In a sign of weakness, replicate the MIPS bus_space_generic.c to produce a new FDT version, which will perform necessary address space translation for bus_space -- the solution used in NLM's MIPS FDT support, but possibly not quite the right thing. This is inconsistent with regular I/O via the nexus and the generic bus_space, which instead perform translation via pmap_mapdev() when a resource is activated. However, it will work while I attempt to identify what the right way to reconcile possible approaches. (Another approach might be to make simplebus use Nexus's activate routine instead of a generic one?) Sponsored by: DARPA, AFRL
This commit is contained in:
rwatson
parent
9a5b2389dd
commit
e17be4ba97
681
sys/mips/mips/bus_space_fdt.c
Normal file
681
sys/mips/mips/bus_space_fdt.c
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@ -0,0 +1,681 @@
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/* $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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* 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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||||
*
|
||||
* 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 by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
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||||
* 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.
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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
|
||||
* 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:
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||||
* This product includes software developed by Christopher G. Demetriou
|
||||
* for the NetBSD Project.
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||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* 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
|
||||
* 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 AUTHOR 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
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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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(void *) 0,
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/* mapping/unmapping */
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generic_bs_map,
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generic_bs_unmap,
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generic_bs_subregion,
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/* allocation/deallocation */
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generic_bs_alloc,
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generic_bs_free,
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/* barrier */
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generic_bs_barrier,
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/* read (single) */
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generic_bs_r_1,
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generic_bs_r_2,
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generic_bs_r_4,
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generic_bs_r_8,
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/* read multiple */
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generic_bs_rm_1,
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generic_bs_rm_2,
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generic_bs_rm_4,
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generic_bs_rm_8,
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/* read region */
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generic_bs_rr_1,
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generic_bs_rr_2,
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generic_bs_rr_4,
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generic_bs_rr_8,
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/* write (single) */
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generic_bs_w_1,
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generic_bs_w_2,
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generic_bs_w_4,
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generic_bs_w_8,
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/* write multiple */
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generic_bs_wm_1,
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generic_bs_wm_2,
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generic_bs_wm_4,
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generic_bs_wm_8,
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/* write region */
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generic_bs_wr_1,
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generic_bs_wr_2,
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generic_bs_wr_4,
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generic_bs_wr_8,
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/* set multiple */
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generic_bs_sm_1,
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generic_bs_sm_2,
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generic_bs_sm_4,
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generic_bs_sm_8,
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/* set region */
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generic_bs_sr_1,
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generic_bs_sr_2,
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generic_bs_sr_4,
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generic_bs_sr_8,
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/* copy */
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generic_bs_c_1,
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generic_bs_c_2,
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generic_bs_c_4,
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generic_bs_c_8,
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/* read (single) stream */
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generic_bs_r_1,
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generic_bs_r_2,
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generic_bs_r_4,
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generic_bs_r_8,
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/* read multiple stream */
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generic_bs_rm_1,
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generic_bs_rm_2,
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generic_bs_rm_4,
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generic_bs_rm_8,
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/* read region stream */
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generic_bs_rr_1,
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generic_bs_rr_2,
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generic_bs_rr_4,
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generic_bs_rr_8,
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/* write (single) stream */
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generic_bs_w_1,
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generic_bs_w_2,
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generic_bs_w_4,
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generic_bs_w_8,
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/* write multiple stream */
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generic_bs_wm_1,
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generic_bs_wm_2,
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generic_bs_wm_4,
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generic_bs_wm_8,
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/* write region stream */
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generic_bs_wr_1,
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generic_bs_wr_2,
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generic_bs_wr_4,
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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 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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#elif defined(CPU_SB1) && _BYTE_ORDER == _BIG_ENDIAN
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#include <mips/sibyte/sb_bus_space.h>
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#define rd8(a) sb_big_endian_read8(a)
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#define rd16(a) sb_big_endian_read16(a)
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#define rd32(a) sb_big_endian_read32(a)
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#define wr8(a, v) sb_big_endian_write8(a, v)
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#define wr16(a, v) sb_big_endian_write16(a, v)
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#define wr32(a, v) sb_big_endian_write32(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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#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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#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 __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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generic_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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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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panic("%s: not implemented", __func__);
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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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panic("%s: not implemented", __func__);
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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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|
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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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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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|
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panic("%s: not implemented", __func__);
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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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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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|
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wr8(bsh + offset, value);
|
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}
|
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|
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void
|
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generic_bs_w_2(void *t, bus_space_handle_t bsh,
|
||||
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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|
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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);
|
||||
}
|
||||
|
||||
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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|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
void
|
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generic_bs_wm_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--)
|
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wr8(baddr, *addr++);
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
bus_addr_t baddr = bsh + offset;
|
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|
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while (count--)
|
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wr16(baddr, *addr++);
|
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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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bus_addr_t baddr = bsh + offset;
|
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|
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while (count--)
|
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wr32(baddr, *addr++);
|
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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)
|
||||
{
|
||||
|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
|
||||
* to bus space described by tag/handle starting at `offset'.
|
||||
*/
|
||||
void
|
||||
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--) {
|
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wr8(baddr, *addr++);
|
||||
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++);
|
||||
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)
|
||||
{
|
||||
|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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)
|
||||
{
|
||||
|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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)
|
||||
{
|
||||
|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
/*
|
||||
* 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)
|
||||
{
|
||||
|
||||
panic("%s: not implemented", __func__);
|
||||
}
|
||||
|
||||
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
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user