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intr.h revision 1.15
      1 /*	$NetBSD: intr.h,v 1.15 2000/04/11 02:43:52 nisimura 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 #define	IPL_NONE	0	/* disable only this interrupt */
     37 #define	IPL_BIO		1	/* disable block I/O interrupts */
     38 #define	IPL_NET		2	/* disable network interrupts */
     39 #define	IPL_TTY		3	/* disable terminal interrupts */
     40 #define	IPL_CLOCK	4	/* disable clock interrupts */
     41 #define	IPL_STATCLOCK	5	/* disable profiling interrupts */
     42 #define	IPL_SERIAL	6	/* disable serial hardware interrupts */
     43 #define	IPL_DMA		7	/* disable DMA reload interrupts */
     44 #define	IPL_HIGH	8	/* disable all interrupts */
     45 
     46 #ifdef _KERNEL
     47 #ifndef _LOCORE
     48 
     49 #include <mips/cpuregs.h>
     50 
     51 int	_splraise __P((int));
     52 int	_spllower __P((int));
     53 int	_splset __P((int));
     54 int	_splget __P((void));
     55 void	_splnone __P((void));
     56 void	_setsoftintr __P((int));
     57 void	_clrsoftintr __P((int));
     58 
     59 #define splhigh()	_splraise(MIPS_INT_MASK)
     60 #define spl0()		(void)_spllower(0)
     61 #define splx(s)		(void)_splset(s)
     62 #define splbio()	(_splraise(splvec.splbio))
     63 #define splnet()	(_splraise(splvec.splnet))
     64 #define spltty()	(_splraise(splvec.spltty))
     65 #define splimp()	(_splraise(splvec.splimp))
     66 #define splpmap()	(_splraise(splvec.splimp))
     67 #define splclock()	(_splraise(splvec.splclock))
     68 #define splstatclock()	(_splraise(splvec.splstatclock))
     69 #define spllowersoftclock() _spllower(MIPS_SOFT_INT_MASK_0)
     70 #define splsoftclock()	_splraise(MIPS_SOFT_INT_MASK_0)
     71 #define splsoftnet()	_splraise(MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     72 
     73 struct splvec {
     74 	int	splbio;
     75 	int	splnet;
     76 	int	spltty;
     77 	int	splimp;
     78 	int	splclock;
     79 	int	splstatclock;
     80 };
     81 extern struct splvec splvec;
     82 
     83 /* Conventionals ... */
     84 
     85 #define MIPS_SPLHIGH (MIPS_INT_MASK)
     86 #define MIPS_SPL0 (MIPS_INT_MASK_0|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     87 #define MIPS_SPL1 (MIPS_INT_MASK_1|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     88 #define MIPS_SPL3 (MIPS_INT_MASK_3|MIPS_SOFT_INT_MASK_0|MIPS_SOFT_INT_MASK_1)
     89 #define MIPS_SPL_0_1	 (MIPS_INT_MASK_1|MIPS_SPL0)
     90 #define MIPS_SPL_0_1_2	 (MIPS_INT_MASK_2|MIPS_SPL_0_1)
     91 #define MIPS_SPL_0_1_3	 (MIPS_INT_MASK_3|MIPS_SPL_0_1)
     92 #define MIPS_SPL_0_1_2_3 (MIPS_INT_MASK_3|MIPS_SPL_0_1_2)
     93 
     94 /*
     95  * Index into intrcnt[], which is defined in locore
     96  */
     97 extern u_long intrcnt[];
     98 
     99 #define	SOFTCLOCK_INTR	0
    100 #define	SOFTNET_INTR	1
    101 #define	SERIAL0_INTR	2
    102 #define	SERIAL1_INTR	3
    103 #define	LANCE_INTR	4
    104 #define	SCSI_INTR	5
    105 #define	ERROR_INTR	6
    106 #define	HARDCLOCK	7
    107 #define	FPU_INTR	8
    108 #define	SLOT0_INTR	9
    109 #define	SLOT1_INTR	10
    110 #define	SLOT2_INTR	11
    111 #define	DTOP_INTR	12
    112 #define	ISDN_INTR	13
    113 #define	FLOPPY_INTR	14
    114 #define	STRAY_INTR	15
    115 
    116 struct intrhand {
    117 	int	(*ih_func) __P((void *));
    118 	void	*ih_arg;
    119 };
    120 extern struct intrhand intrtab[];
    121 
    122 #define SYS_DEV_SCSI	SCSI_INTR
    123 #define SYS_DEV_LANCE	LANCE_INTR
    124 #define SYS_DEV_SCC0	SERIAL0_INTR
    125 #define SYS_DEV_SCC1	SERIAL1_INTR
    126 #define SYS_DEV_DTOP	DTOP_INTR
    127 #define SYS_DEV_FDC	FLOPPY_INTR
    128 #define SYS_DEV_ISDN	ISDN_INTR
    129 #define SYS_DEV_OPT0	SLOT0_INTR
    130 #define SYS_DEV_OPT1	SLOT1_INTR
    131 #define SYS_DEV_OPT2	SLOT2_INTR
    132 #define SYS_DEV_BOGUS	-1
    133 #define MAX_DEV_NCOOKIES 16
    134 
    135 /*
    136  * software simulated interrupt
    137  */
    138 extern unsigned ssir;
    139 
    140 #define SIR_NET		0x1
    141 
    142 #define setsoftnet()	setsoft(SIR_NET)
    143 #define setsoft(x) \
    144 	do { ssir |= (x); _setsoftintr(MIPS_SOFT_INT_MASK_1); } while (0)
    145 
    146 #define setsoftclock()	_setsoftintr(MIPS_SOFT_INT_MASK_0)
    147 
    148 #endif /* !_LOCORE */
    149 #endif /* _KERNEL */
    150 
    151 #endif	/* !_PMAX_INTR_H_ */
    152