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Annotation of sys/arch/sparc64/include/intr.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: intr.h,v 1.8 2004/06/28 01:47:41 aaron Exp $  */
                      2: /*     $NetBSD: intr.h,v 1.8 2001/01/14 23:50:30 thorpej Exp $ */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1998 The NetBSD Foundation, Inc.
                      6:  * All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to The NetBSD Foundation
                      9:  * by Paul Kranenburg.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
                     19:  * 3. All advertising materials mentioning features or use of this software
                     20:  *    must display the following acknowledgement:
                     21:  *        This product includes software developed by the NetBSD
                     22:  *        Foundation, Inc. and its contributors.
                     23:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     24:  *    contributors may be used to endorse or promote products derived
                     25:  *    from this software without specific prior written permission.
                     26:  *
                     27:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     28:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     29:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     30:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     31:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     32:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     33:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     34:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     35:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     36:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     37:  * POSSIBILITY OF SUCH DAMAGE.
                     38:  */
                     39:
                     40: #ifndef _SPARC64_INTR_H_
                     41: #define _SPARC64_INTR_H_
                     42:
                     43: #ifndef _SPARC64_INTREG_H_
                     44: #include <sparc64/sparc64/intreg.h>
                     45: #endif
                     46:
                     47: #include <sys/evcount.h>
                     48:
                     49: /*
                     50:  * Interrupt handler chains.  Interrupt handlers should return 0 for
                     51:  * ``not me'' or 1 (``I took care of it'').  intr_establish() inserts a
                     52:  * handler into the list.  The handler is called with its (single)
                     53:  * argument, or with a pointer to a clockframe if ih_arg is NULL.
                     54:  */
                     55: struct intrhand {
                     56:        int                     (*ih_fun)(void *);
                     57:        void                    *ih_arg;
                     58:        short                   ih_number;      /* interrupt number */
                     59:                                                /* the H/W provides */
                     60:        char                    ih_pil;         /* interrupt priority */
                     61:        volatile char           ih_busy;        /* handler is on list */
                     62:        struct intrhand         *ih_next;       /* global list */
                     63:        struct intrhand         *ih_pending;    /* pending list */
                     64:        volatile u_int64_t      *ih_map;        /* interrupt map reg */
                     65:        volatile u_int64_t      *ih_clr;        /* clear interrupt reg */
                     66:        struct evcount          ih_count;       /* # of interrupts */
                     67:        const void              *ih_bus;        /* parent bus */
                     68:        char                    ih_name[32];    /* device name */
                     69: };
                     70:
                     71: extern struct intrhand *intrlev[MAXINTNUM];
                     72:
                     73: void    intr_establish(int, struct intrhand *);
                     74:
                     75: /* XXX - arbitrary numbers; no interpretation is defined yet */
                     76: #define        IPL_NONE        0               /* nothing */
                     77: #define        IPL_SOFTINT     1               /* softint */
                     78: #define        IPL_SOFTCLOCK   1               /* timeouts */
                     79: #define        IPL_SOFTNET     1               /* protocol stack */
                     80: #define        IPL_BIO         PIL_BIO         /* block I/O */
                     81: #define        IPL_NET         PIL_NET         /* network */
                     82: #define        IPL_SOFTSERIAL  4               /* serial */
                     83: #define        IPL_TTY         PIL_TTY         /* terminal */
                     84: #define        IPL_VM          PIL_VM          /* memory allocation */
                     85: #define        IPL_AUDIO       PIL_AUD         /* audio */
                     86: #define        IPL_CLOCK       PIL_CLOCK       /* clock */
                     87: #define        IPL_SERIAL      PIL_SER         /* serial */
                     88: #define        IPL_SCHED       PIL_SCHED       /* scheduler */
                     89: #define        IPL_LOCK        PIL_LOCK        /* locks */
                     90: #define IPL_STATCLOCK  PIL_STATCLOCK   /* statclock */
                     91: #define        IPL_HIGH        PIL_HIGH        /* everything */
                     92:
                     93: void *
                     94: softintr_establish(int level, void (*fun)(void *), void *arg);
                     95:
                     96: void
                     97: softintr_disestablish(void *cookie);
                     98:
                     99: void
                    100: softintr_schedule(void *cookie);
                    101:
                    102: #endif /* _SPARC64_INTR_H_ */