1998-01-15 07:32:56 +00:00
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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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* 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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* 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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2005-01-05 20:17:21 +00:00
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/*-
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1998-01-15 07:32:56 +00:00
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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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1999-08-28 01:08:13 +00:00
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/* $FreeBSD$ */
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1998-01-15 07:32:56 +00:00
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2003-05-12 02:44:37 +00:00
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#ifndef _AMD64_BUS_AMD64_H_
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#define _AMD64_BUS_AMD64_H_
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1998-01-15 07:32:56 +00:00
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#include <machine/cpufunc.h>
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1999-07-03 20:14:08 +00:00
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/*
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* To remain compatible with NetBSD's interface, default to both memio and
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* pio when neither of them is defined.
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*/
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2003-05-12 02:44:37 +00:00
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#if !defined(_AMD64_BUS_PIO_H_) && !defined(_AMD64_BUS_MEMIO_H_)
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#define _AMD64_BUS_PIO_H_
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#define _AMD64_BUS_MEMIO_H_
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1999-07-03 20:14:08 +00:00
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#endif
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1998-01-15 07:32:56 +00:00
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/*
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2003-05-12 02:44:37 +00:00
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* Values for the amd64 bus space tag, not to be used directly by MI code.
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1998-01-15 07:32:56 +00:00
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*/
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2003-05-12 02:44:37 +00:00
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#define AMD64_BUS_SPACE_IO 0 /* space is i/o space */
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#define AMD64_BUS_SPACE_MEM 1 /* space is mem space */
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1998-01-15 07:32:56 +00:00
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/*
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* Bus address and size types
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*/
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2003-03-30 05:24:52 +00:00
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typedef uint64_t bus_addr_t;
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2003-05-01 01:05:25 +00:00
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typedef uint64_t bus_size_t;
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1998-01-15 07:32:56 +00:00
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#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
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2003-02-26 02:16:06 +00:00
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#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
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1998-01-15 07:32:56 +00:00
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#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
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2003-03-30 05:24:52 +00:00
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#define BUS_SPACE_MAXADDR 0xFFFFFFFFFFFFFFFFULL
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1998-01-15 07:32:56 +00:00
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1998-05-06 01:45:55 +00:00
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#define BUS_SPACE_UNRESTRICTED (~0)
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1998-01-15 07:32:56 +00:00
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/*
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* Access methods for bus resources and address space.
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*/
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2003-05-01 01:05:25 +00:00
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typedef uint64_t bus_space_tag_t;
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typedef uint64_t bus_space_handle_t;
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1998-01-15 07:32:56 +00:00
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/*
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* Map a region of device bus space into CPU virtual address space.
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*/
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2003-09-23 08:22:34 +00:00
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static __inline int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
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bus_size_t size, int flags,
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bus_space_handle_t *bshp);
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1998-01-15 07:32:56 +00:00
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2003-09-23 08:22:34 +00:00
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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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1998-01-15 07:32:56 +00:00
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/*
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* Unmap a region of device bus space.
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*/
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2002-02-18 13:43:19 +00:00
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static __inline void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
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bus_size_t size);
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static __inline void
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2002-07-15 13:25:15 +00:00
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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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2002-02-18 13:43:19 +00:00
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{
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}
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1998-01-15 07:32:56 +00:00
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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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2002-02-17 09:41:23 +00:00
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static __inline int bus_space_subregion(bus_space_tag_t t,
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bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size,
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bus_space_handle_t *nbshp);
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static __inline int
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2002-07-15 13:25:15 +00:00
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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,
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2002-02-17 09:41:23 +00:00
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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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1998-01-15 07:32:56 +00:00
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/*
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* Allocate a region of memory that is accessible to devices in bus space.
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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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* Free a region of bus space accessible memory.
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*/
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2002-02-18 13:43:19 +00:00
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static __inline void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
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bus_size_t size);
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static __inline void
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2002-07-15 13:25:15 +00:00
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bus_space_free(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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2002-02-18 13:43:19 +00:00
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{
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}
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1998-01-15 07:32:56 +00:00
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2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_PIO_H_) || defined(_AMD64_BUS_MEMIO_H_)
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1998-01-15 07:32:56 +00:00
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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 bus_space_read_1(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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static __inline u_int16_t bus_space_read_2(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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static __inline u_int32_t bus_space_read_4(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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static __inline u_int8_t
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bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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2003-05-12 02:44:37 +00:00
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#if defined (_AMD64_BUS_PIO_H_)
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#if defined (_AMD64_BUS_MEMIO_H_)
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if (tag == AMD64_BUS_SPACE_IO)
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1998-01-15 07:32:56 +00:00
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#endif
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return (inb(handle + offset));
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#endif
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2003-05-12 02:44:37 +00:00
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#if defined (_AMD64_BUS_MEMIO_H_)
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1998-01-15 07:32:56 +00:00
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return (*(volatile u_int8_t *)(handle + offset));
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#endif
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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 tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_PIO_H_)
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#if defined(_AMD64_BUS_MEMIO_H_)
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if (tag == AMD64_BUS_SPACE_IO)
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1998-01-15 07:32:56 +00:00
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#endif
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return (inw(handle + offset));
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#endif
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2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_MEMIO_H_)
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1998-01-15 07:32:56 +00:00
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return (*(volatile u_int16_t *)(handle + offset));
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#endif
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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 tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
|
2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_PIO_H_)
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#if defined(_AMD64_BUS_MEMIO_H_)
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if (tag == AMD64_BUS_SPACE_IO)
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1998-01-15 07:32:56 +00:00
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#endif
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return (inl(handle + offset));
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#endif
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2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_MEMIO_H_)
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1998-01-15 07:32:56 +00:00
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return (*(volatile u_int32_t *)(handle + offset));
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#endif
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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) !!! bus_space_read_8 unimplemented !!!
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#endif
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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 bus_space_read_multi_1(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr,
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size_t count);
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static __inline void bus_space_read_multi_2(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr,
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size_t count);
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static __inline void bus_space_read_multi_4(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr,
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size_t count);
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static __inline void
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bus_space_read_multi_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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{
|
2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_PIO_H_)
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#if defined(_AMD64_BUS_MEMIO_H_)
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if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
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#endif
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insb(bsh + offset, addr, count);
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#endif
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2003-05-12 02:44:37 +00:00
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#if defined(_AMD64_BUS_MEMIO_H_)
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#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: movb (%2),%%al \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosb \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int16_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
insw(bsh + offset, addr, count);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: movw (%2),%%ax \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosw \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int32_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
insl(bsh + offset, addr, count);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: movl (%2),%%eax \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosl \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_read_multi_8 */
|
|
|
|
|
#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
|
|
|
|
|
* described by tag/handle and starting at `offset' and copy into
|
|
|
|
|
* buffer provided.
|
|
|
|
|
*/
|
|
|
|
|
static __inline void bus_space_read_region_1(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int8_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_read_region_2(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int16_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_read_region_4(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int32_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int8_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: inb %w2,%%al \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosb \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
incl %2 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsb" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int16_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: inw %w2,%%ax \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosw \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
addl $2,%2 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsw" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int32_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
1: inl %w2,%%eax \n\
|
1998-04-19 15:28:30 +00:00
|
|
|
stosl \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
addl $4,%2 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsl" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
|
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_read_region_8 */
|
|
|
|
|
#define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Write the 1, 2, 4, or 8 byte value `value' to bus space
|
|
|
|
|
* described by tag/handle/offset.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_write_1(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int8_t value);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_write_2(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int16_t value);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_write_4(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int32_t value);
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int8_t value)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outb(bsh + offset, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
*(volatile u_int8_t *)(bsh + offset) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int16_t value)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outw(bsh + offset, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
*(volatile u_int16_t *)(bsh + offset) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, u_int32_t value)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outl(bsh + offset, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
*(volatile u_int32_t *)(bsh + offset) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_8 */
|
|
|
|
|
#define bus_space_write_8 !!! bus_space_write_8 not implemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
|
|
|
|
|
* provided to bus space described by tag/handle/offset.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_write_multi_1(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset,
|
|
|
|
|
const u_int8_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
static __inline void bus_space_write_multi_2(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset,
|
|
|
|
|
const u_int16_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_write_multi_4(bus_space_tag_t tag,
|
|
|
|
|
bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset,
|
|
|
|
|
const u_int32_t *addr,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, const u_int8_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outsb(bsh + offset, addr, count);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsb \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
movb %%al,(%2) \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=S" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, const u_int16_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outsw(bsh + offset, addr, count);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsw \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
movw %%ax,(%2) \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=S" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
|
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
outsl(bsh + offset, addr, count);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsl \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
movl %%eax,(%2) \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=S" (addr), "=c" (count) :
|
|
|
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_multi_8 */
|
|
|
|
|
#define bus_space_write_multi_8(t, h, o, a, c) \
|
|
|
|
|
!!! bus_space_write_multi_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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);
|
|
|
|
|
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);
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
|
|
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)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsb \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
outb %%al,%w0 \n\
|
|
|
|
|
incl %0 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsb" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsw \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
outw %%ax,%w0 \n\
|
|
|
|
|
addl $2,%0 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsw" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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)
|
|
|
|
|
{
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
int _port_ = bsh + offset;
|
|
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
1: lodsl \n\
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
outl %%eax,%w0 \n\
|
|
|
|
|
addl $4,%0 \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
loop 1b" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"%eax", "memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
2003-05-23 05:04:54 +00:00
|
|
|
bus_space_handle_t _port_ = bsh + offset;
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
1998-04-19 15:28:30 +00:00
|
|
|
__asm __volatile(" \n\
|
|
|
|
|
cld \n\
|
|
|
|
|
repne \n\
|
1998-01-15 07:32:56 +00:00
|
|
|
movsl" :
|
Fix clobbers so that GENERIC may compile with GCC 2.95.2.
Historically, the documentation of extended asm was lacking, namely you
should NOT specify the same register as an input, and a clobber.
If the register is clobbered, it should be specified as an output as well,
e.g., by linking input and output through the "number" notation.
(Beware of lvalues, some local variables needed...)
URL:http://egcs.cygnus.com/faq.html
In versions up to egcs-1.1.1, the compiler did not even warn about it,
but it was liable to output bad code. Newer egcs are pickier and simply
refuse to swallow such code.
Note, since *addr changes, it needs to be an output operand.
We might be excessive in saying that all memory has changed.
Obtained from: OpenBSD
w/extra thanks to Marc Espie <Marc.Espie@liafa.jussieu.fr>
1999-11-14 03:36:34 +00:00
|
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
|
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
|
|
|
"memory", "cc");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
1998-01-15 07:32:56 +00:00
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_region_8 */
|
|
|
|
|
#define bus_space_write_region_8 \
|
|
|
|
|
!!! bus_space_write_region_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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 value, size_t count);
|
|
|
|
|
static __inline void bus_space_set_multi_2(bus_space_tag_t tag,
|
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|
|
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bus_space_handle_t bsh,
|
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bus_size_t offset,
|
|
|
|
|
u_int16_t value, size_t count);
|
|
|
|
|
static __inline void bus_space_set_multi_4(bus_space_tag_t tag,
|
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|
|
|
bus_space_handle_t bsh,
|
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|
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|
bus_size_t offset,
|
|
|
|
|
u_int32_t value, size_t count);
|
|
|
|
|
|
|
|
|
|
static __inline void
|
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|
|
|
bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
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|
|
|
bus_size_t offset, u_int8_t value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
while (count--)
|
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|
|
|
outb(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
while (count--)
|
|
|
|
|
*(volatile u_int8_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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 value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
while (count--)
|
|
|
|
|
outw(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
while (count--)
|
|
|
|
|
*(volatile u_int16_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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 value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
while (count--)
|
|
|
|
|
outl(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
while (count--)
|
|
|
|
|
*(volatile u_int32_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_multi_8 */
|
|
|
|
|
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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 value,
|
|
|
|
|
size_t count);
|
|
|
|
|
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 value,
|
|
|
|
|
size_t count);
|
|
|
|
|
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 value,
|
|
|
|
|
size_t count);
|
|
|
|
|
|
|
|
|
|
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 value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr++)
|
|
|
|
|
outb(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr++)
|
|
|
|
|
*(volatile u_int8_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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 value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr += 2)
|
|
|
|
|
outw(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr += 2)
|
|
|
|
|
*(volatile u_int16_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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 value, size_t count)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr = bsh + offset;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr += 4)
|
|
|
|
|
outl(addr, value);
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
for (; count != 0; count--, addr += 4)
|
|
|
|
|
*(volatile u_int32_t *)(addr) = value;
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_region_8 */
|
|
|
|
|
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
|
|
|
|
|
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_copy_region_1(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);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_copy_region_2(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);
|
|
|
|
|
|
|
|
|
|
static __inline void bus_space_copy_region_4(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);
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_copy_region_1(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)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
|
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1++, addr2++)
|
|
|
|
|
outb(addr2, inb(addr1));
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += (count - 1), addr2 += (count - 1);
|
|
|
|
|
count != 0; count--, addr1--, addr2--)
|
|
|
|
|
outb(addr2, inb(addr1));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1++, addr2++)
|
|
|
|
|
*(volatile u_int8_t *)(addr2) =
|
|
|
|
|
*(volatile u_int8_t *)(addr1);
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += (count - 1), addr2 += (count - 1);
|
|
|
|
|
count != 0; count--, addr1--, addr2--)
|
|
|
|
|
*(volatile u_int8_t *)(addr2) =
|
|
|
|
|
*(volatile u_int8_t *)(addr1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_copy_region_2(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)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
|
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1 += 2, addr2 += 2)
|
|
|
|
|
outw(addr2, inw(addr1));
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
|
|
|
|
|
count != 0; count--, addr1 -= 2, addr2 -= 2)
|
|
|
|
|
outw(addr2, inw(addr1));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1 += 2, addr2 += 2)
|
|
|
|
|
*(volatile u_int16_t *)(addr2) =
|
|
|
|
|
*(volatile u_int16_t *)(addr1);
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
|
|
|
|
|
count != 0; count--, addr1 -= 2, addr2 -= 2)
|
|
|
|
|
*(volatile u_int16_t *)(addr2) =
|
|
|
|
|
*(volatile u_int16_t *)(addr1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static __inline void
|
|
|
|
|
bus_space_copy_region_4(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)
|
|
|
|
|
{
|
2003-03-11 19:43:38 +00:00
|
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
|
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
if (tag == AMD64_BUS_SPACE_IO)
|
1998-01-15 07:32:56 +00:00
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1 += 4, addr2 += 4)
|
|
|
|
|
outl(addr2, inl(addr1));
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
|
|
|
|
|
count != 0; count--, addr1 -= 4, addr2 -= 4)
|
|
|
|
|
outl(addr2, inl(addr1));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
2003-05-12 02:44:37 +00:00
|
|
|
#if defined(_AMD64_BUS_MEMIO_H_)
|
|
|
|
|
#if defined(_AMD64_BUS_PIO_H_)
|
1998-01-15 07:32:56 +00:00
|
|
|
else
|
|
|
|
|
#endif
|
|
|
|
|
{
|
|
|
|
|
if (addr1 >= addr2) {
|
|
|
|
|
/* src after dest: copy forward */
|
|
|
|
|
for (; count != 0; count--, addr1 += 4, addr2 += 4)
|
|
|
|
|
*(volatile u_int32_t *)(addr2) =
|
|
|
|
|
*(volatile u_int32_t *)(addr1);
|
|
|
|
|
} else {
|
|
|
|
|
/* dest after src: copy backwards */
|
|
|
|
|
for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
|
|
|
|
|
count != 0; count--, addr1 -= 4, addr2 -= 4)
|
|
|
|
|
*(volatile u_int32_t *)(addr2) =
|
|
|
|
|
*(volatile u_int32_t *)(addr1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#endif /* defined(_AMD64_BUS_PIO_H_) || defined(_AMD64_MEM_IO_H_) */
|
1998-01-15 07:32:56 +00:00
|
|
|
|
|
|
|
|
#if 0 /* Cause a link error for bus_space_copy_8 */
|
|
|
|
|
#define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!!
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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);
|
|
|
|
|
*
|
2000-05-18 00:06:10 +00:00
|
|
|
*
|
|
|
|
|
* Note that BUS_SPACE_BARRIER_WRITE doesn't do anything other than
|
|
|
|
|
* prevent reordering by the compiler; all Intel x86 processors currently
|
|
|
|
|
* retire operations outside the CPU in program order.
|
1998-01-15 07:32:56 +00:00
|
|
|
*/
|
|
|
|
|
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
|
|
|
|
|
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
|
|
|
|
|
|
2000-05-18 00:06:10 +00:00
|
|
|
static __inline void
|
2002-07-15 13:25:15 +00:00
|
|
|
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)
|
2000-05-18 00:06:10 +00:00
|
|
|
{
|
2002-07-15 13:25:15 +00:00
|
|
|
#ifdef __GNUC__
|
2000-05-18 00:06:10 +00:00
|
|
|
if (flags & BUS_SPACE_BARRIER_READ)
|
2003-05-01 01:05:25 +00:00
|
|
|
__asm __volatile("lock; addl $0,0(%%rsp)" : : : "memory");
|
2000-05-18 00:06:10 +00:00
|
|
|
else
|
2000-06-14 18:48:39 +00:00
|
|
|
__asm __volatile("" : : : "memory");
|
2002-07-15 13:25:15 +00:00
|
|
|
#endif
|
2000-05-18 00:06:10 +00:00
|
|
|
}
|
1998-01-15 07:32:56 +00:00
|
|
|
|
2003-05-12 02:44:37 +00:00
|
|
|
#endif /* _AMD64_BUS_AMD64_H_ */
|
