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d8b878873e
In the end, it does help fixing /dev/io usage from multithreaded processes. - On i386 and amd64 the old behaviour is kept but multithreaded processes must use the new interface in order to work well. - Support for the other architectures is greatly improved, where necessary, by the necessity to define very small things now. Manpage update will happen shortly. Sponsored by: Sandvine Incorporated PR: threads/116181 Reviewed by: emaste, marcel MFC after: 3 weeks
47 lines
1.8 KiB
C
47 lines
1.8 KiB
C
/*-
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* Copyright (c) 2004 Mark R V Murray
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* 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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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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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* $FreeBSD$
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*/
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#ifndef _MACHINE_IODEV_H_
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#define _MACHINE_IODEV_H_
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#ifdef _KERNEL
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#include <machine/cpufunc.h>
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#define iodev_read_1 inb
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#define iodev_read_2 inw
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#define iodev_read_4 inl
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#define iodev_write_1 outb
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#define iodev_write_2 outw
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#define iodev_write_4 outl
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int iodev_open(struct thread *td);
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int iodev_close(struct thread *td);
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int iodev_ioctl(u_long cmd, caddr_t data);
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#endif /* _KERNEL */
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#endif /* _MACHINE_IODEV_H_ */
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