76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
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/*-
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* Copyright (c) 1998 Doug Rabson
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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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* 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef _MACHINE_IPL_H_
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#define _MACHINE_IPL_H_
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#include <machine/alpha_cpu.h>
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/* IPL-lowering/restoring macros */
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#define splx(s) \
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((s) == ALPHA_PSL_IPL_0 ? spl0() : alpha_pal_swpipl(s))
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#define splsoft() alpha_pal_swpipl(ALPHA_PSL_IPL_SOFT)
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#define splsoftclock() splsoft()
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#define splsoftnet() splsoft()
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/* IPL-raising functions/macros */
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static __inline int _splraise __P((int)) __attribute__ ((unused));
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static __inline int
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_splraise(s)
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int s;
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{
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int cur = alpha_pal_rdps() & ALPHA_PSL_IPL_MASK;
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return (s > cur ? alpha_pal_swpipl(s) : cur);
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}
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#define splnet() _splraise(ALPHA_PSL_IPL_IO)
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#define splbio() _splraise(ALPHA_PSL_IPL_IO)
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#define splimp() _splraise(ALPHA_PSL_IPL_IO)
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#define spltty() _splraise(ALPHA_PSL_IPL_IO)
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#define splvm() _splraise(ALPHA_PSL_IPL_IO)
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#define splclock() _splraise(ALPHA_PSL_IPL_CLOCK)
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#define splstatclock() _splraise(ALPHA_PSL_IPL_CLOCK)
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#define splhigh() _splraise(ALPHA_PSL_IPL_HIGH)
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/*
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* simulated software interrupt register
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*/
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extern u_int64_t ssir;
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#define SIR_NET 0x1
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#define SIR_CLOCK 0x2
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#define setsoftnet() ssir |= SIR_NET
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#define setsoftclock() ssir |= SIR_CLOCK
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extern void spl0(void);
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/* XXX bogus */
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extern unsigned cpl; /* current priority level mask */
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#endif /* !_MACHINE_MD_VAR_H_ */
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