98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
/* $NetBSD: intr.h,v 1.9 2003/08/02 13:04:49 tsutsui Exp $ */
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/*
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*
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* Copyright (c) 1998 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 Minoura Makoto and Jason R. Thorpe.
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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 Foundation
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* Inc. and its contributers.
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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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#ifndef _NEWS68K_INTR_H_
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#define _NEWS68K_INTR_H_
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#include <machine/psl.h>
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#include <m68k/asm_single.h>
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#ifdef _KERNEL
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/*
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* news68k can handle software interrupts by its own hardware
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* so has no need to check for any simulated interrupts, etc.
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*/
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#define spl0() _spl0()
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#define spllowersoftclock() spl2()
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#define splsoft() splraise2()
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#define splsoftclock() splsoft()
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#define splsoftnet() splsoft()
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#define splbio() splraise4()
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#define splnet() splraise4()
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#define spltty() splraise5()
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#define splvm() splraise5()
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#define splserial() splraise5()
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#define splclock() splraise6()
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#define splstatclock() splclock()
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#define splhigh() spl7()
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#define splsched() spl7()
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#define spllock() spl7()
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static __inline void
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splx(int sr)
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{
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__asm __volatile("movw %0,%%sr" : : "di" (sr));
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}
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/*
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* simulated software interrupt register
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*/
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extern u_char ssir;
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extern volatile u_char *ctrl_int2;
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#define NSIR (sizeof(ssir) * 8)
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#define SIR_NET 0
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#define SIR_CLOCK 1
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#define NEXT_SIR 2
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#define siron(x) single_inst_bset_b((ssir), (x))
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#define siroff(x) single_inst_bclr_b((ssir), (x))
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#define setsoftint(x) do { \
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siron(x); \
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*ctrl_int2 = 0xff; \
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} while (0)
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#define setsoftnet() setsoftint(1 << SIR_NET)
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#define setsoftclock() setsoftint(1 << SIR_CLOCK)
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u_char allocate_sir(void (*)(void *), void *);
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void init_sir(void);
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#endif /* _KERNEL */
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#endif /* _NEWS68K_INTR_H_ */
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