103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/* $NetBSD: intr.h,v 1.21 2008/06/26 02:52:03 isaki Exp $ */
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/*
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* Copyright (C) 1997 Scott Reynolds
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* Copyright (C) 1998 Darrin Jewell
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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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* 3. 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 _NEXT68K_INTR_H_
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#define _NEXT68K_INTR_H_
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#include <machine/psl.h>
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/* Probably want to dealwith IPL's here @@@ */
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#ifdef _KERNEL
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/* spl0 requires checking for software interrupts */
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/* watch out for side effects */
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#define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
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#define splsoftbio() splraise1()
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#define splsoftnet() splraise1()
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#define splsoftclock() splraise1()
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#define splsoftserial() splraise1()
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#define splvm() splraise6()
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#define splhigh() spl7()
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#define splsched() spl7()
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#define spldma() splraise6()
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/****************************************************************/
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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 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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/****************************************************************/
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/* locore.s */
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int spl0(void);
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extern volatile u_long *intrstat;
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extern volatile u_long *intrmask;
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#define INTR_SETMASK(x) (*intrmask = (x))
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#define INTR_ENABLE(x) (*intrmask |= NEXT_I_BIT(x))
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#define INTR_DISABLE(x) (*intrmask &= (~NEXT_I_BIT(x)))
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#define INTR_OCCURRED(x) (*intrstat & NEXT_I_BIT(x))
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#endif /* _KERNEL */
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#endif /* _NEXT68K_INTR_H_ */
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