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intr.h revision 1.14.22.1 
      1 /*	$NetBSD: intr.h,v 1.14.22.1 2006/09/29 15:32:05 yamt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * machine/intr.h for the Amiga port.
     41  * Currently, only a wrapper, for most of the stuff, around the old
     42  * include files.
     43  */
     44 
     45 #ifndef _MACHINE_INTR_H_
     46 #define _MACHINE_INTR_H_
     47 
     48 #include <amiga/amiga/isr.h>
     49 #include <amiga/include/mtpr.h>
     50 #include <m68k/psl.h>
     51 
     52 #define	IPL_NONE	0
     53 #define	IPL_SOFTCLOCK	1
     54 #define	IPL_SOFTNET	1
     55 #define	IPL_SOFTSERIAL	1
     56 #define	IPL_BIO		3
     57 #define	IPL_NET		4
     58 #define	IPL_TTY		5
     59 #define	IPL_SERIAL	6
     60 #define	IPL_LPT		7
     61 #define	IPL_VM		8
     62 #define	IPL_AUDIO	9
     63 #define	IPL_CLOCK	10
     64 #define	IPL_STATCLOCK	IPL_CLOCK
     65 #define	IPL_SCHED	IPL_HIGH
     66 #define	IPL_HIGH	11
     67 #define	IPL_LOCK	IPL_HIGH
     68 #define	_NIPL		12
     69 
     70 #ifdef splaudio
     71 #undef splaudio
     72 #define splaudio spl6
     73 #endif
     74 
     75 #define spllpt()	spl6()
     76 
     77 #if !defined(_LKM)
     78 #include "opt_lev6_defer.h"
     79 #endif
     80 
     81 #define	spl0()			_spl0()	/* we have real software interrupts */
     82 
     83 #define splnone()		spl0()
     84 #define	spllowersoftclock()	spl1()
     85 
     86 #define splsoftclock()		splraise1()
     87 #define splsoftnet()		splraise1()
     88 #define splbio()		splraise3()
     89 #define splnet()		splraise3()
     90 
     91 /*
     92  * splserial hack, idea by Jason Thorpe.
     93  * drivers which need it (at the present only the coms) raise the variable to
     94  * their serial interrupt level.
     95  *
     96  * ipl2spl_table[IPL_SERIAL] is statically initialized in machdep.c
     97  * at the moment; should be some driver independent file.
     98  */
     99 
    100 #define splserial()	splraiseipl(makeiplcookie[IPL_SERIAL])
    101 #define spltty()	splraise4()
    102 #define	splvm()		splraise4()
    103 
    104 #ifndef _LKM
    105 
    106 #ifndef LEV6_DEFER
    107 #define splclock()	splraise6()
    108 #define splstatclock()	splraise6()
    109 #define splhigh()	spl7()
    110 #define splsched()	spl7()
    111 #define spllock()	spl7()
    112 #else
    113 #define splclock()	splraise4()
    114 #define splstatclock()	splraise4()
    115 #define splhigh()	splraise4()
    116 #define splsched()	splraise4()
    117 #define spllock()	splraise4()
    118 #endif
    119 
    120 #else	/* _LKM */
    121 
    122 extern int _spllkm6(void);
    123 extern int _spllkm7(void);
    124 
    125 #define splclock()	_spllkm6()
    126 #define splstatclock()	_spllkm6()
    127 #define spllock()	_spllkm7()
    128 #define splhigh()	_spllkm7()
    129 #define splsched()	_spllkm7()
    130 
    131 #endif /* _LKM */
    132 
    133 #define splx(s)		_spl(s)
    134 
    135 #endif
    136 
    137 extern int ipl2spl_table[_NIPL];
    138 
    139 typedef int ipl_t;
    140 typedef struct {
    141 	ipl_t _ipl;
    142 } ipl_cookie_t;
    143 
    144 static inline ipl_cookie_t
    145 makeiplcookie(ipl_t ipl)
    146 {
    147 
    148 	return (ipl_cookie_t){._ipl = ipl};
    149 }
    150 
    151 static inline int
    152 splraiseipl(ipl_cookie_t icookie)
    153 {
    154 
    155 	return _splraise(ipl2spl_table[icookie._ipl]);
    156 }
    157