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intr.h revision 1.33 
      1 /*	$NetBSD: intr.h,v 1.33 2009/03/14 14:46:04 dsl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Jonathan Stone.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Jonathan Stone for
     17  *      the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _PMAX_INTR_H_
     34 #define _PMAX_INTR_H_
     35 
     36 #include <sys/evcnt.h>
     37 #include <sys/queue.h>
     38 
     39 #define	IPL_NONE	0	/* disable only this interrupt */
     40 #define	IPL_SOFTCLOCK	1	/* clock software interrupts (SI 0) */
     41 #define	IPL_SOFTBIO	1	/* generic software interrupts (SI 0) */
     42 #define	IPL_SOFTNET	2	/* network software interrupts (SI 1) */
     43 #define	IPL_SOFTSERIAL	2	/* serial software interrupts (SI 1) */
     44 #define	IPL_VM		3
     45 #define	IPL_SCHED	4
     46 #define	IPL_HIGH	5
     47 
     48 #define	_IPL_N		6
     49 
     50 #define	_IPL_SI0_FIRST	IPL_SOFTCLOCK
     51 #define	_IPL_SI0_LAST	IPL_SOFTBIO
     52 
     53 #define	_IPL_SI1_FIRST	IPL_SOFTNET
     54 #define	_IPL_SI1_LAST	IPL_SOFTSERIAL
     55 
     56 #ifdef _KERNEL
     57 #ifndef _LOCORE
     58 
     59 #include <mips/cpuregs.h>
     60 #include <mips/locore.h>
     61 
     62 #define spl0()		(void)_spllower(0)
     63 #define splx(s)		(void)_splset(s)
     64 #define splvm()		splraiseipl(makeiplcookie(IPL_VM))
     65 #define splsched()	splraiseipl(makeiplcookie(IPL_SCHED))
     66 #define splhigh()	_splraise(MIPS_INT_MASK)
     67 
     68 #define	_SPL_SOFT	MIPS_SOFT_INT_MASK_0
     69 #define	_SPL_SOFTCLOCK	MIPS_SOFT_INT_MASK_0
     70 #define	_SPL_SOFTNET	(MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     71 #define	_SPL_SOFTSERIAL	(MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     72 
     73 #define splsoftclock()	_splraise(_SPL_SOFTCLOCK)
     74 #define splsoftbio()	_splraise(_SPL_SOFTBIO)
     75 #define splsoftnet()	_splraise(_SPL_SOFTNET)
     76 #define splsoftserial()	_splraise(_SPL_SOFTSERIAL)
     77 
     78 extern const int *ipl2spl_table;
     79 
     80 typedef int ipl_t;
     81 typedef struct {
     82 	int _spl;
     83 } ipl_cookie_t;
     84 
     85 ipl_cookie_t makeiplcookie(ipl_t);
     86 
     87 static inline int
     88 splraiseipl(ipl_cookie_t icookie)
     89 {
     90 
     91 	return _splraise(icookie._spl);
     92 }
     93 
     94 /* Conventionals ... */
     95 
     96 #define MIPS_SPLHIGH (MIPS_INT_MASK)
     97 #define MIPS_SPL0 (MIPS_INT_MASK_0|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     98 #define MIPS_SPL1 (MIPS_INT_MASK_1|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     99 #define MIPS_SPL3 (MIPS_INT_MASK_3|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
    100 #define MIPS_SPL_0_1	 (MIPS_INT_MASK_1|MIPS_SPL0)
    101 #define MIPS_SPL_0_1_2	 (MIPS_INT_MASK_2|MIPS_SPL_0_1)
    102 #define MIPS_SPL_0_1_3	 (MIPS_INT_MASK_3|MIPS_SPL_0_1)
    103 #define MIPS_SPL_0_1_2_3 (MIPS_INT_MASK_3|MIPS_SPL_0_1_2)
    104 
    105 struct intrhand {
    106 	int	(*ih_func)(void *);
    107 	void	*ih_arg;
    108 	struct evcnt ih_count;
    109 };
    110 extern struct intrhand intrtab[];
    111 
    112 #define SYS_DEV_SCC0	0
    113 #define SYS_DEV_SCC1	1
    114 #define SYS_DEV_LANCE	2
    115 #define SYS_DEV_SCSI	3
    116 #define SYS_DEV_OPT0	4
    117 #define SYS_DEV_OPT1	5
    118 #define SYS_DEV_OPT2	6
    119 #define SYS_DEV_DTOP	7
    120 #define SYS_DEV_ISDN	8
    121 #define SYS_DEV_FDC	9
    122 #define SYS_DEV_BOGUS	-1
    123 #define MAX_DEV_NCOOKIES 10
    124 
    125 struct pmax_intrhand {
    126 	LIST_ENTRY(pmax_intrhand) ih_q;
    127 	int (*ih_func)(void *);
    128 	void *ih_arg;
    129 };
    130 
    131 #include <mips/softintr.h>
    132 
    133 extern struct evcnt pmax_clock_evcnt;
    134 extern struct evcnt pmax_fpu_evcnt;
    135 extern struct evcnt pmax_memerr_evcnt;
    136 
    137 void intr_init(void);
    138 #endif /* !_LOCORE */
    139 #endif /* _KERNEL */
    140 
    141 #endif	/* !_PMAX_INTR_H_ */
    142