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intr.h revision 1.10
      1  1.10       he /*	$NetBSD: intr.h,v 1.10 2005/06/09 13:45:31 he Exp $	*/
      2   1.1      wdk 
      3   1.1      wdk /*
      4   1.1      wdk  * Copyright (c) 1998 Jonathan Stone.  All rights reserved.
      5   1.1      wdk  *
      6   1.1      wdk  * Redistribution and use in source and binary forms, with or without
      7   1.1      wdk  * modification, are permitted provided that the following conditions
      8   1.1      wdk  * are met:
      9   1.1      wdk  * 1. Redistributions of source code must retain the above copyright
     10   1.1      wdk  *    notice, this list of conditions and the following disclaimer.
     11   1.1      wdk  * 2. Redistributions in binary form must reproduce the above copyright
     12   1.1      wdk  *    notice, this list of conditions and the following disclaimer in the
     13   1.1      wdk  *    documentation and/or other materials provided with the distribution.
     14   1.1      wdk  * 3. All advertising materials mentioning features or use of this software
     15   1.1      wdk  *    must display the following acknowledgement:
     16   1.1      wdk  *	This product includes software developed by Jonathan Stone for
     17   1.1      wdk  *      the NetBSD Project.
     18   1.1      wdk  * 4. The name of the author may not be used to endorse or promote products
     19   1.1      wdk  *    derived from this software without specific prior written permission.
     20   1.1      wdk  *
     21   1.1      wdk  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22   1.1      wdk  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23   1.1      wdk  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24   1.1      wdk  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25   1.1      wdk  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26   1.1      wdk  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27   1.1      wdk  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28   1.1      wdk  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29   1.1      wdk  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30   1.1      wdk  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31   1.1      wdk  */
     32   1.1      wdk 
     33   1.1      wdk #ifndef _MACHINE_INTR_H_
     34   1.1      wdk #define _MACHINE_INTR_H_
     35   1.1      wdk 
     36   1.1      wdk #define IPL_NONE	0	/* disable only this interrupt */
     37   1.1      wdk #define IPL_BIO		1	/* disable block I/O interrupts */
     38   1.1      wdk #define IPL_NET		2	/* disable network interrupts */
     39   1.1      wdk #define IPL_TTY		3	/* disable terminal interrupts */
     40   1.1      wdk #define IPL_CLOCK	4	/* disable clock interrupts */
     41   1.1      wdk #define IPL_STATCLOCK	5	/* disable profiling interrupts */
     42   1.1      wdk #define IPL_SERIAL	6	/* disable serial hardware interrupts */
     43   1.1      wdk #define IPL_HIGH	7	/* disable all interrupts */
     44   1.6      wdk #define NIPL		8
     45   1.6      wdk 
     46   1.6      wdk /* Interrupt sharing types. */
     47   1.6      wdk #define IST_NONE	0	/* none */
     48   1.6      wdk #define IST_PULSE	1	/* pulsed */
     49   1.6      wdk #define IST_EDGE	2	/* edge-triggered */
     50   1.6      wdk #define IST_LEVEL	3	/* level-triggered */
     51   1.1      wdk 
     52   1.1      wdk #define	IPL_SOFTSERIAL	0	/* serial software interrupts */
     53   1.1      wdk #define	IPL_SOFTNET	1	/* network software interrupts */
     54   1.1      wdk #define	IPL_SOFTCLOCK	2	/* clock software interrupts */
     55   1.1      wdk #define	IPL_NSOFT	3
     56   1.1      wdk 
     57   1.1      wdk #define	IPL_SOFTNAMES {							\
     58   1.1      wdk 	"serial",							\
     59   1.1      wdk 	"net",								\
     60   1.1      wdk 	"clock",							\
     61   1.1      wdk }
     62   1.1      wdk 
     63   1.1      wdk #ifdef _KERNEL
     64   1.1      wdk #ifndef _LOCORE
     65   1.6      wdk #include <sys/types.h>
     66   1.6      wdk #include <sys/device.h>
     67   1.6      wdk #include <sys/queue.h>
     68   1.1      wdk 
     69   1.1      wdk extern int _splraise __P((int));
     70   1.1      wdk extern int _spllower __P((int));
     71   1.1      wdk extern int _splset __P((int));
     72   1.1      wdk extern int _splget __P((void));
     73   1.1      wdk extern void _splnone __P((void));
     74   1.1      wdk extern void _setsoftintr __P((int));
     75   1.1      wdk extern void _clrsoftintr __P((int));
     76   1.1      wdk 
     77   1.1      wdk /*
     78   1.1      wdk  * software simulated interrupt
     79   1.1      wdk  */
     80   1.1      wdk #define setsoft(x)	do {			\
     81   1.1      wdk 	extern u_int ssir;			\
     82  1.10       he 	int _s;					\
     83   1.1      wdk 						\
     84  1.10       he 	_s = splhigh();				\
     85   1.6      wdk 	ssir |= 1 << (x);			\
     86   1.1      wdk 	_setsoftintr(MIPS_SOFT_INT_MASK_1);	\
     87  1.10       he 	splx(_s);				\
     88   1.1      wdk } while (0)
     89   1.1      wdk 
     90   1.6      wdk #define softintr_schedule(arg)						\
     91   1.6      wdk do {									\
     92   1.6      wdk 	struct mipsco_intrhand *__ih = (arg);				\
     93   1.6      wdk 	__ih->ih_pending = 1;						\
     94   1.6      wdk 	setsoft(__ih->ih_intrhead->intr_ipl);				\
     95   1.6      wdk } while (0)
     96   1.6      wdk 
     97   1.6      wdk extern struct mipsco_intrhand *softnet_intrhand;
     98   1.6      wdk 
     99   1.6      wdk #define	setsoftnet()	softintr_schedule(softnet_intrhand)
    100   1.1      wdk 
    101   1.1      wdk /*
    102   1.1      wdk  * nesting interrupt masks.
    103   1.1      wdk  */
    104   1.1      wdk #define MIPS_INT_MASK_SPL_SOFT0	MIPS_SOFT_INT_MASK_0
    105   1.1      wdk #define MIPS_INT_MASK_SPL_SOFT1	(MIPS_SOFT_INT_MASK_1|MIPS_INT_MASK_SPL_SOFT0)
    106   1.1      wdk #define MIPS_INT_MASK_SPL0	(MIPS_INT_MASK_0|MIPS_INT_MASK_SPL_SOFT1)
    107   1.1      wdk #define MIPS_INT_MASK_SPL1	(MIPS_INT_MASK_1|MIPS_INT_MASK_SPL0)
    108   1.1      wdk #define MIPS_INT_MASK_SPL2	(MIPS_INT_MASK_2|MIPS_INT_MASK_SPL1)
    109   1.1      wdk #define MIPS_INT_MASK_SPL3	(MIPS_INT_MASK_3|MIPS_INT_MASK_SPL2)
    110   1.1      wdk #define MIPS_INT_MASK_SPL4	(MIPS_INT_MASK_4|MIPS_INT_MASK_SPL3)
    111   1.1      wdk #define MIPS_INT_MASK_SPL5	(MIPS_INT_MASK_5|MIPS_INT_MASK_SPL4)
    112   1.1      wdk 
    113   1.1      wdk #define spl0()		(void)_spllower(0)
    114   1.1      wdk #define splx(s)		(void)_splset(s)
    115   1.1      wdk #define splbio()	_splraise(MIPS_INT_MASK_SPL1)
    116   1.1      wdk #define splnet()	_splraise(MIPS_INT_MASK_SPL0)
    117   1.1      wdk #define spltty()	_splraise(MIPS_INT_MASK_SPL0)
    118   1.5  thorpej #define splvm()		_splraise(MIPS_INT_MASK_SPL2)
    119   1.1      wdk #define splclock()	_splraise(MIPS_INT_MASK_SPL2)
    120   1.1      wdk #define splstatclock()	_splraise(MIPS_INT_MASK_SPL2)
    121   1.1      wdk #define splhigh()	_splraise(MIPS_INT_MASK_SPL2)
    122   1.3  thorpej #define	splsched()	splhigh()
    123   1.4  thorpej #define	spllock()	splhigh()
    124   1.6      wdk #define splserial()	spltty()
    125   1.8      wdk #define spllpt()	spltty()
    126   1.1      wdk 
    127   1.1      wdk #define splsoftclock()	_splraise(MIPS_INT_MASK_SPL_SOFT0)
    128   1.6      wdk #define splsoft()	_splraise(MIPS_INT_MASK_SPL_SOFT1)
    129   1.1      wdk #define spllowersoftclock() _spllower(MIPS_INT_MASK_SPL_SOFT0)
    130   1.6      wdk #define splsoftnet()	splsoft()
    131   1.1      wdk 
    132   1.6      wdk struct mipsco_intrhand {
    133   1.6      wdk 	LIST_ENTRY(mipsco_intrhand)
    134   1.6      wdk 		ih_q;
    135   1.6      wdk 	int	(*ih_fun) __P((void *));
    136   1.6      wdk 	void	 *ih_arg;
    137   1.6      wdk 	struct	mipsco_intr *ih_intrhead;
    138   1.6      wdk 	int	ih_pending;
    139   1.2      wdk };
    140   1.6      wdk 
    141   1.6      wdk struct mipsco_intr {
    142   1.6      wdk 	LIST_HEAD(,mipsco_intrhand)
    143   1.6      wdk 		intr_q;
    144   1.6      wdk 	struct	evcnt ih_evcnt;
    145   1.6      wdk 	unsigned long intr_ipl;
    146   1.6      wdk };
    147   1.6      wdk 
    148   1.6      wdk 
    149   1.6      wdk extern struct mipsco_intrhand intrtab[];
    150   1.2      wdk 
    151   1.2      wdk #define SYS_INTR_LEVEL0	0
    152   1.2      wdk #define SYS_INTR_LEVEL1	1
    153   1.2      wdk #define SYS_INTR_LEVEL2	2
    154   1.2      wdk #define SYS_INTR_LEVEL3	3
    155   1.2      wdk #define SYS_INTR_LEVEL4	4
    156   1.2      wdk #define SYS_INTR_LEVEL5	5
    157   1.2      wdk #define SYS_INTR_SCSI	6
    158   1.2      wdk #define SYS_INTR_TIMER	7
    159   1.2      wdk #define SYS_INTR_ETHER	8
    160   1.2      wdk #define SYS_INTR_SCC0	9
    161   1.2      wdk #define SYS_INTR_FDC	10
    162   1.6      wdk #define SYS_INTR_ATBUS	11
    163   1.1      wdk 
    164   1.2      wdk #define MAX_INTR_COOKIES 16
    165   1.2      wdk 
    166   1.6      wdk #define	CALL_INTR(lev)	((*intrtab[lev].ih_fun)(intrtab[lev].ih_arg))
    167   1.6      wdk 
    168   1.6      wdk void	*softintr_establish(int, void (*)(void *), void *);
    169   1.6      wdk void	softintr_disestablish(void *);
    170   1.6      wdk void	softintr_init(void);
    171   1.6      wdk void	softintr_dispatch(void);
    172   1.1      wdk 
    173   1.1      wdk #endif /* !_LOCORE */
    174   1.1      wdk #endif /* _KERNEL */
    175   1.1      wdk #endif /* _MACHINE_INTR_H_ */
    176