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intr.h revision 1.17 
      1 /*	$NetBSD: intr.h,v 1.17 2004/07/07 00:08:43 sekiya 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 #ifndef	_SGIMIPS_INTR_H_
     36 #define	_SGIMIPS_INTR_H_
     37 
     38 #define	IPL_NONE	0	/* Disable only this interrupt. */
     39 #define	IPL_BIO		1	/* Disable block I/O interrupts. */
     40 #define	IPL_NET		2	/* Disable network interrupts. */
     41 #define	IPL_TTY		3	/* Disable terminal interrupts. */
     42 #define	IPL_CLOCK	4	/* Disable clock interrupts. */
     43 #define	IPL_STATCLOCK	5	/* Disable profiling interrupts. */
     44 #ifndef __NO_SOFT_SERIAL_INTERRUPT
     45 #define	IPL_SERIAL	6	/* Disable serial hardware interrupts. */
     46 #endif
     47 #define	IPL_HIGH	7	/* Disable all interrupts. */
     48 #define NIPL		8
     49 
     50 /* Interrupt sharing types. */
     51 #define IST_NONE	0	/* none */
     52 #define IST_PULSE	1	/* pulsed */
     53 #define IST_EDGE	2	/* edge-triggered */
     54 #define IST_LEVEL	3	/* level-triggered */
     55 
     56 /* Soft interrupt numbers */
     57 #define	IPL_SOFT	0	/* generic software interrupts */
     58 #define	IPL_SOFTSERIAL	1	/* serial software interrupts */
     59 #define	IPL_SOFTNET	2	/* network software interrupts */
     60 #define	IPL_SOFTCLOCK	3	/* clock software interrupts */
     61 #define	_IPL_NSOFT	4
     62 
     63 #define	IPL_SOFTNAMES {							\
     64 	"misc",								\
     65 	"serial",							\
     66 	"net",								\
     67 	"clock",							\
     68 }
     69 
     70 #ifdef _KERNEL
     71 #ifndef _LOCORE
     72 
     73 #include <sys/queue.h>
     74 #include <sys/types.h>
     75 #include <sys/device.h>
     76 #include <mips/cpuregs.h>
     77 
     78 #define NINTR	32
     79 
     80 struct sgimips_intrhand {
     81 	LIST_ENTRY(sgimips_intrhand)
     82 		ih_q;
     83 	int	(*ih_fun) (void *);
     84 	void	 *ih_arg;
     85 	struct	sgimips_intr *ih_intrhead;
     86 	struct	sgimips_intrhand *ih_next;
     87 	int	ih_pending;
     88 };
     89 
     90 struct sgimips_intr {
     91 	LIST_HEAD(,sgimips_intrhand)
     92 		intr_q;
     93 	struct	evcnt ih_evcnt;
     94 	unsigned long intr_ipl;
     95 };
     96 
     97 extern struct sgimips_intrhand intrtab[];
     98 
     99 extern int		_splraise(int);
    100 extern int		_spllower(int);
    101 extern int		_splset(int);
    102 extern int		_splget(void);
    103 extern void		_splnone(void);
    104 extern void		_setsoftintr(int);
    105 extern void		_clrsoftintr(int);
    106 
    107 extern u_int32_t 	biomask;
    108 extern u_int32_t 	netmask;
    109 extern u_int32_t 	ttymask;
    110 extern u_int32_t 	clockmask;
    111 
    112 #define splhigh()	_splraise(MIPS_INT_MASK)
    113 #define spl0()		(void)_spllower(0)
    114 #define splx(s)		(void)_splset(s)
    115 #define splbio()	_splraise(biomask)
    116 #define splnet()	_splraise(netmask)
    117 #define spltty()	_splraise(ttymask)
    118 #define splvm()		spltty()
    119 #define splclock()	_splraise(clockmask)
    120 #define splstatclock()	splclock()
    121 
    122 #define	splsched()	splhigh()
    123 #define	spllock()	splhigh()
    124 #define splserial()	spltty()
    125 #define spllpt()	spltty()
    126 
    127 #define splsoft()	_splraise(MIPS_SOFT_INT_MASK_1)
    128 #define splsoftclock()	splsoft()
    129 #define splsoftnet()	splsoft()
    130 
    131 #define spllowersoftclock() _spllower(MIPS_SOFT_INT_MASK_1)
    132 
    133 extern void *		cpu_intr_establish(int, int, int (*)(void *), void *);
    134 
    135 #include <mips/softintr.h>
    136 
    137 #endif /* _LOCORE */
    138 #endif /* !_KERNEL */
    139 
    140 #endif	/* !_SGIMIPS_INTR_H_ */
    141