742 lines
20 KiB
C
742 lines
20 KiB
C
/*-
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* Copyright (c) 1996, 1997, 1998 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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* 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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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* $NetBSD: bus.h,v 1.9.4.1 2000/06/30 16:27:30 simonb Exp $
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* $FreeBSD$
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*/
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#ifndef _MACPPC_BUS_H_
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#define _MACPPC_BUS_H_
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#include <machine/_bus.h>
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#include <machine/pio.h>
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#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
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#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
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#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
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#define BUS_SPACE_MAXADDR 0xFFFFFFFF
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#define BUS_SPACE_UNRESTRICTED (~0)
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/*
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* Values for the macppc bus space tag, not to be used directly by MI code.
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*/
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#define __BUS_SPACE_HAS_STREAM_METHODS 1
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/*
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* Define the PPC tag values
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*/
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#define PPC_BUS_SPACE_MEM 1 /* space is mem space */
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#define PPC_BUS_SPACE_IO 2 /* space is io space */
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static __inline void *
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__ppc_ba(bus_space_tag_t tag __unused, bus_space_handle_t handle,
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bus_size_t offset)
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{
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return ((void *)(handle + offset));
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}
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/*
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* int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
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* bus_size_t size, int flags, bus_space_handle_t *bshp));
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*
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* Map a region of bus space.
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*/
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static __inline int
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bus_space_map(bus_space_tag_t 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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/*
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* int bus_space_unmap(bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t size));
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*
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* Unmap a region of bus space.
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*/
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static __inline void
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bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
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bus_size_t size __unused)
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{
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}
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/*
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* int bus_space_subregion(bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
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* bus_space_handle_t *nbshp));
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*
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* Get a new handle for a subregion of an already-mapped area of bus space.
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*/
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static __inline int
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bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size __unused, bus_space_handle_t *nbshp)
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{
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*nbshp = bsh + offset;
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return (0);
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}
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/*
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* int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
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* bus_addr_t rend, bus_size_t size, bus_size_t align,
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* bus_size_t boundary, int flags, bus_addr_t *addrp,
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* bus_space_handle_t *bshp));
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*
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* Allocate a region of bus space.
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*/
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#if 0
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#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) !!! unimplemented !!!
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#endif
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/*
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* int bus_space_free(bus_space_tag_t t,
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* bus_space_handle_t bsh, bus_size_t size));
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*
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* Free a region of bus space.
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*/
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#if 0
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#define bus_space_free(t, h, s) !!! unimplemented !!!
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#endif
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/*
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* u_intN_t bus_space_read_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset));
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*
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* Read a 1, 2, 4, or 8 byte quantity from bus space
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* described by tag/handle/offset.
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*/
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static __inline u_int8_t
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bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in8(__ppc_ba(t, h, o)));
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}
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static __inline u_int16_t
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bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in16rb(__ppc_ba(t, h, o)));
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}
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static __inline u_int32_t
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bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in32rb(__ppc_ba(t, h, o)));
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}
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#if 0 /* Cause a link error for bus_space_read_8 */
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#define bus_space_read_8(t, h, o) !!! unimplemented !!!
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#endif
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static __inline u_int8_t
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bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in8(__ppc_ba(t, h, o)));
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}
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static __inline u_int16_t
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bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in16(__ppc_ba(t, h, o)));
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}
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static __inline u_int32_t
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bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
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{
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return (in32(__ppc_ba(t, h, o)));
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}
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#if 0 /* Cause a link error for bus_space_read_stream_8 */
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#define bus_space_read_stream_8(t, h, o) !!! unimplemented !!!
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#endif
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/*
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* void bus_space_read_multi_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t *addr, size_t count));
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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/offset and copy into buffer provided.
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*/
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static __inline void
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bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int8_t *a, size_t c)
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{
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ins8(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int16_t *a, size_t c)
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{
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ins16rb(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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u_int32_t *a, size_t c)
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{
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ins32rb(__ppc_ba(t, h, o), a, c);
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}
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#if 0 /* Cause a link error for bus_space_read_multi_8 */
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#define bus_space_read_multi_8 !!! unimplemented !!!
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#endif
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static __inline void
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bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
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bus_size_t o, u_int8_t *a, size_t c)
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{
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ins8(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
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bus_size_t o, u_int16_t *a, size_t c)
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{
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ins16(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
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bus_size_t o, u_int32_t *a, size_t c)
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{
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ins32(__ppc_ba(t, h, o), a, c);
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}
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#if 0 /* Cause a link error for bus_space_read_multi_stream_8 */
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#define bus_space_read_multi_stream_8 !!! unimplemented !!!
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#endif
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/*
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* void bus_space_read_region_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t *addr, size_t count));
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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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static __inline void
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bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr, size_t count)
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{
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volatile u_int8_t *s = __ppc_ba(tag, bsh, offset);
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while (count--)
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*addr++ = *s++;
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__asm __volatile("eieio; sync");
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}
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static __inline void
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bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr, size_t count)
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{
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volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
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while (count--)
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__asm __volatile("lhbrx %0, 0, %1" :
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"=r"(*addr++) : "r"(s++));
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__asm __volatile("eieio; sync");
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}
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static __inline void
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bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr, size_t count)
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{
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volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
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while (count--)
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__asm __volatile("lwbrx %0, 0, %1" :
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"=r"(*addr++) : "r"(s++));
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__asm __volatile("eieio; sync");
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}
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#if 0 /* Cause a link error for bus_space_read_region_8 */
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#define bus_space_read_region_8 !!! unimplemented !!!
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#endif
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static __inline void
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bus_space_read_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr, size_t count)
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{
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volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
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while (count--)
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*addr++ = *s++;
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__asm __volatile("eieio; sync");
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}
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static __inline void
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bus_space_read_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr, size_t count)
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{
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volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
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while (count--)
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*addr++ = *s++;
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__asm __volatile("eieio; sync");
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}
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#if 0 /* Cause a link error */
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#define bus_space_read_region_stream_8 !!! unimplemented !!!
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#endif
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/*
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* void bus_space_write_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t value));
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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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static __inline void
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bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t v)
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{
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out8(__ppc_ba(t, h, o), v);
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}
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static __inline void
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bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t v)
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{
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out16rb(__ppc_ba(t, h, o), v);
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}
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static __inline void
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bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t v)
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{
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out32rb(__ppc_ba(t, h, o), v);
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}
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#if 0 /* Cause a link error for bus_space_write_8 */
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#define bus_space_write_8 !!! unimplemented !!!
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#endif
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static __inline void
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bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t v)
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{
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out8(__ppc_ba(t, h, o), v);
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}
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static __inline void
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bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t v)
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{
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out16(__ppc_ba(t, h, o), v);
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}
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static __inline void
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bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t v)
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{
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out32(__ppc_ba(t, h, o), v);
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}
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#if 0 /* Cause a link error for bus_space_write_stream_8 */
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#define bus_space_write_stream_8 !!! unimplemented !!!
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#endif
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|
|
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/*
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* void bus_space_write_multi_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* const u_intN_t *addr, size_t count));
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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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static __inline void
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bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint8_t *a, size_t c)
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{
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outsb(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint16_t *a, size_t c)
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{
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outsw(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
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uint32_t *a, size_t c)
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{
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outsl(__ppc_ba(t, h, o), a, c);
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}
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#if 0
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#define bus_space_write_multi_8 !!! unimplemented !!!
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#endif
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static __inline void
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bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
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bus_size_t o, const u_int8_t *a, size_t c)
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{
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outsb(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
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bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
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bus_size_t o, const u_int16_t *a, size_t c)
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{
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outsw(__ppc_ba(t, h, o), a, c);
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}
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static __inline void
|
|
bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
|
|
bus_size_t o, const u_int32_t *a, size_t c)
|
|
{
|
|
outsl(__ppc_ba(t, h, o), a, c);
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_write_multi_stream_8 !!! unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_write_region_N(bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset,
|
|
* const u_intN_t *addr, size_t count));
|
|
*
|
|
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
|
|
* to bus space described by tag/handle starting at `offset'.
|
|
*/
|
|
|
|
static __inline void
|
|
bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int8_t *addr, size_t count)
|
|
{
|
|
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = *addr++;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int16_t *addr, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("sthbrx %0, 0, %1" ::
|
|
"r"(*addr++), "r"(d++));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("stwbrx %0, 0, %1" ::
|
|
"r"(*addr++), "r"(d++));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_write_region_8 !!! bus_space_write_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int16_t *addr, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = *addr++;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = *addr++;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_write_region_stream_8 !!! unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_set_multi_N(bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
|
|
* size_t count));
|
|
*
|
|
* Write the 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle/offset `count' times.
|
|
*/
|
|
|
|
static __inline void
|
|
bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int8_t val, size_t count)
|
|
{
|
|
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t val, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("sthbrx %0, 0, %1" ::
|
|
"r"(val), "r"(d));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t val, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("stwbrx %0, 0, %1" ::
|
|
"r"(val), "r"(d));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
|
|
#endif
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t val, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t val, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_set_multi_stream_8 !!! unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_set_region_N(bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
|
|
* size_t count));
|
|
*
|
|
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
|
|
* by tag/handle starting at `offset'.
|
|
*/
|
|
|
|
static __inline void
|
|
bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int8_t val, size_t count)
|
|
{
|
|
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t val, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("sthbrx %0, 0, %1" ::
|
|
"r"(val), "r"(d++));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t val, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
__asm __volatile("stwbrx %0, 0, %1" ::
|
|
"r"(val), "r"(d++));
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t val, size_t count)
|
|
{
|
|
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_set_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t val, size_t count)
|
|
{
|
|
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
|
|
|
|
while (count--)
|
|
*d++ = val;
|
|
__asm __volatile("eieio; sync");
|
|
}
|
|
|
|
#if 0
|
|
#define bus_space_set_region_stream_8 !!! unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* void bus_space_copy_region_N(bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh1, bus_size_t off1,
|
|
* bus_space_handle_t bsh2, bus_size_t off2,
|
|
* size_t count));
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* XXX IMPLEMENT bus_space_copy_N() XXX */
|
|
|
|
/*
|
|
* Bus read/write barrier methods.
|
|
*
|
|
* void bus_space_barrier(bus_space_tag_t tag,
|
|
* bus_space_handle_t bsh, bus_size_t offset,
|
|
* bus_size_t len, int flags));
|
|
*
|
|
* Note: the macppc does not currently require barriers, but we must
|
|
* provide the flags to MI code.
|
|
*/
|
|
|
|
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
|
|
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
|
|
|
|
static __inline void
|
|
bus_space_barrier(bus_space_tag_t tag __unused,
|
|
bus_space_handle_t bsh __unused, bus_size_t offset __unused,
|
|
bus_size_t len __unused, int flags __unused)
|
|
{
|
|
__asm __volatile("" : : : "memory");
|
|
}
|
|
|
|
|
|
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
|
|
|
|
#include <machine/bus_dma.h>
|
|
|
|
#endif /* _MACPPC_BUS_H_ */
|