102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/* $NetBSD: intr.h,v 1.27 2018/04/19 21:50:07 christos Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by 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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*
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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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#ifndef _NEWS68K_INTR_H_
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#define _NEWS68K_INTR_H_
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#include <sys/evcnt.h>
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#include <sys/queue.h>
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#include <machine/psl.h>
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#include <m68k/asm_single.h>
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#define IPL_NONE 0
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#define IPL_SOFTCLOCK 1
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#define IPL_SOFTBIO 2
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#define IPL_SOFTNET 3
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#define IPL_SOFTSERIAL 4
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#define IPL_VM 5
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#define IPL_SCHED 6
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#define IPL_HIGH 7
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#define NIPL 8
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extern int idepth;
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static __inline bool
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cpu_intr_p(void)
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{
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return idepth != 0;
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}
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extern const uint16_t ipl2psl_table[NIPL];
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typedef int ipl_t;
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typedef struct {
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uint16_t _psl;
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} ipl_cookie_t;
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static __inline ipl_cookie_t
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makeiplcookie(ipl_t ipl)
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{
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return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
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}
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static __inline int
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splraiseipl(ipl_cookie_t icookie)
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{
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return _splraise(icookie._psl);
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}
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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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* 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 splsoftbio() splraise2()
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#define splsoftclock() splraise2()
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#define splsoftnet() splraise2()
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#define splsoftserial() splraise2()
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#define splvm() splraise5()
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#define splhigh() spl7()
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#define splsched() spl7()
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#endif /* _NEWS68K_INTR_H_ */
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