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