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intr.h revision 1.18.2.2 
      1 /*	$NetBSD: intr.h,v 1.18.2.2 2007/02/26 09:08:03 yamt 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_SOFT	1	/* generic software interrupts */
     40 #define	IPL_SOFTSERIAL	2	/* serial software interrupts */
     41 #define	IPL_SOFTNET	3	/* network software interrupts */
     42 #define	IPL_SOFTCLOCK	4	/* clock software interrupts */
     43 #define	IPL_BIO		5	/* Disable block I/O interrupts. */
     44 #define	IPL_NET		6	/* Disable network interrupts. */
     45 #define	IPL_TTY		7	/* Disable terminal interrupts. */
     46 #define	IPL_SERIAL	IPL_TTY
     47 #define	IPL_LPT		IPL_TTY
     48 #define	IPL_VM		IPL_TTY
     49 #define	IPL_CLOCK	8	/* Disable clock interrupts. */
     50 #define	IPL_STATCLOCK	IPL_CLOCK /* Disable profiling interrupts. */
     51 #define	IPL_HIGH	9	/* Disable all interrupts. */
     52 #define	IPL_SCHED	IPL_HIGH
     53 #define	IPL_LOCK	IPL_HIGH
     54 #define NIPL		10
     55 
     56 /* Interrupt sharing types. */
     57 #define IST_NONE	0	/* none */
     58 #define IST_PULSE	1	/* pulsed */
     59 #define IST_EDGE	2	/* edge-triggered */
     60 #define IST_LEVEL	3	/* level-triggered */
     61 
     62 /* Soft interrupt numbers */
     63 #define	SI_SOFT		0
     64 #define	SI_SOFTCLOCK	1
     65 #define	SI_SOFTNET	2
     66 #define	SI_SOFTSERIAL	3
     67 
     68 #define	SI_NQUEUES	4
     69 
     70 #define	SI_QUEUENAMES {							\
     71 	"misc",								\
     72 	"serial",							\
     73 	"net",								\
     74 	"clock",							\
     75 }
     76 
     77 #ifdef _KERNEL
     78 #ifndef _LOCORE
     79 
     80 #include <sys/queue.h>
     81 #include <sys/types.h>
     82 #include <sys/device.h>
     83 #include <mips/cpuregs.h>
     84 
     85 #define NINTR	32
     86 
     87 struct sgimips_intrhand {
     88 	LIST_ENTRY(sgimips_intrhand)
     89 		ih_q;
     90 	int	(*ih_fun) (void *);
     91 	void	 *ih_arg;
     92 	struct	sgimips_intr *ih_intrhead;
     93 	struct	sgimips_intrhand *ih_next;
     94 	int	ih_pending;
     95 };
     96 
     97 struct sgimips_intr {
     98 	LIST_HEAD(,sgimips_intrhand)
     99 		intr_q;
    100 	struct	evcnt ih_evcnt;
    101 	unsigned long intr_ipl;
    102 };
    103 
    104 extern struct sgimips_intrhand intrtab[];
    105 
    106 extern int		_splraise(int);
    107 extern int		_spllower(int);
    108 extern int		_splset(int);
    109 extern int		_splget(void);
    110 extern void		_splnone(void);
    111 extern void		_setsoftintr(int);
    112 extern void		_clrsoftintr(int);
    113 
    114 extern const int *ipl2spl_table;
    115 
    116 #define splhigh()	_splraise(MIPS_INT_MASK)
    117 #define spl0()		(void)_spllower(0)
    118 #define splx(s)		(void)_splset(s)
    119 #define splbio()	_splraise(ipl2spl_table[IPL_BIO])
    120 #define splnet()	_splraise(ipl2spl_table[IPL_NET])
    121 #define spltty()	_splraise(ipl2spl_table[IPL_TTY])
    122 #define splvm()		spltty()
    123 #define splclock()	_splraise(ipl2spl_table[IPL_CLOCK])
    124 #define splstatclock()	splclock()
    125 
    126 #define	splsched()	splhigh()
    127 #define	spllock()	splhigh()
    128 #define splserial()	spltty()
    129 #define spllpt()	spltty()
    130 
    131 #define splsoft()	_splraise(MIPS_SOFT_INT_MASK_1)
    132 #define splsoftclock()	splsoft()
    133 #define splsoftnet()	splsoft()
    134 #define splsoftserial()	splsoft()
    135 
    136 extern void *		cpu_intr_establish(int, int, int (*)(void *), void *);
    137 
    138 typedef int ipl_t;
    139 typedef struct {
    140 	int _spl;
    141 } ipl_cookie_t;
    142 
    143 ipl_cookie_t makeiplcookie(ipl_t);
    144 
    145 static inline int
    146 splraiseipl(ipl_cookie_t icookie)
    147 {
    148 
    149 	return _splraise(icookie._spl);
    150 }
    151 
    152 #include <mips/softintr.h>
    153 
    154 #endif /* _LOCORE */
    155 #endif /* !_KERNEL */
    156 
    157 #endif	/* !_SGIMIPS_INTR_H_ */
    158