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intr.h revision 1.2 
      1 /*	$NetBSD: intr.h,v 1.2 2000/06/29 15:36:48 soren Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 Soren S. Jorvang
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *          This product includes software developed for the
     18  *          NetBSD Project.  See http://www.netbsd.org/ for
     19  *          information about NetBSD.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #define	IPL_NONE	0	/* Disable only this interrupt. */
     36 #define	IPL_BIO		1	/* Disable block I/O interrupts. */
     37 #define	IPL_NET		2	/* Disable network interrupts. */
     38 #define	IPL_TTY		3	/* Disable terminal interrupts. */
     39 #define	IPL_CLOCK	4	/* Disable clock interrupts. */
     40 #define	IPL_STATCLOCK	5	/* Disable profiling interrupts. */
     41 #ifndef __NO_SOFT_SERIAL_INTERRUPT
     42 #define	IPL_SERIAL	6	/* Disable serial hardware interrupts. */
     43 #endif
     44 #define	IPL_HIGH	7	/* Disable all interrupts. */
     45 #define NIPL		8
     46 
     47 /* Interrupt sharing types. */
     48 #define IST_NONE	0	/* none */
     49 #define IST_PULSE	1	/* pulsed */
     50 #define IST_EDGE	2	/* edge-triggered */
     51 #define IST_LEVEL	3	/* level-triggered */
     52 
     53 /* Soft interrupt masks. */
     54 #define SIR_CLOCK	31
     55 #define SIR_NET		30
     56 #define SIR_CLOCKMASK	((1 << SIR_CLOCK))
     57 #define SIR_NETMASK	((1 << SIR_NET) | SIR_CLOCKMASK)
     58 #define SIR_ALLMASK	(SIR_CLOCKMASK | SIR_NETMASK)
     59 
     60 #ifdef _KERNEL
     61 #ifndef _LOCORE
     62 
     63 #include <mips/cpuregs.h>
     64 
     65 extern int		_splraise(int);
     66 extern int		_spllower(int);
     67 extern int		_splset(int);
     68 extern int		_splget(void);
     69 extern void		_splnone(void);
     70 extern void		_setsoftintr(int);
     71 extern void		_clrsoftintr(int);
     72 
     73 #define setsoftclock()	_setsoftintr(MIPS_SOFT_INT_MASK_0)
     74 #define setsoftnet()	_setsoftintr(MIPS_SOFT_INT_MASK_1)
     75 #define clearsoftclock() _clrsoftintr(MIPS_SOFT_INT_MASK_0)
     76 #define clearsoftnet()	_clrsoftintr(MIPS_SOFT_INT_MASK_1)
     77 
     78 extern u_int32_t 	biomask;
     79 extern u_int32_t 	netmask;
     80 extern u_int32_t 	ttymask;
     81 extern u_int32_t 	clockmask;
     82 
     83 #define splhigh()       _splraise(MIPS_INT_MASK)
     84 #define spl0()          (void)_spllower(0)
     85 #define splx(s)         (void)_splset(s)
     86 #define splbio()        _splraise(biomask)
     87 #define splnet()        _splraise(netmask)
     88 #define spltty()        _splraise(ttymask)
     89 #define splimp()        spltty()
     90 #define splclock()      _splraise(clockmask)
     91 #define splstatclock()  splclock()
     92 #define spllowersoftclock() _spllower(MIPS_SOFT_INT_MASK_0)
     93 #define splsoftclock()  _splraise(MIPS_SOFT_INT_MASK_0 | MIPS_SOFT_INT_MASK_1)
     94 #define splsoftnet()    _splraise(MIPS_SOFT_INT_MASK_1)
     95 
     96 #define spllpt()	spltty()
     97 
     98 extern unsigned int	intrcnt[];
     99 #define SOFTCLOCK_INTR	0
    100 #define SOFTNET_INTR	1
    101 
    102 extern void *		cpu_intr_establish(int, int, int (*)(void *), void *);
    103 
    104 #endif /* _LOCORE */
    105 #endif /* _KERNEL */
    106