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Diffstat (limited to 'sys/arch/sparc/include/intr.h')
| -rw-r--r-- | sys/arch/sparc/include/intr.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/arch/sparc/include/intr.h b/sys/arch/sparc/include/intr.h new file mode 100644 index 00000000000..b4fff3a96ac --- /dev/null +++ b/sys/arch/sparc/include/intr.h @@ -0,0 +1,102 @@ +/* $OpenBSD: intr.h,v 1.1 2009/04/10 20:53:54 miod Exp $ */ +/* $NetBSD: cpu.h,v 1.24 1997/03/15 22:25:15 pk Exp $ */ + +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)cpu.h 8.4 (Berkeley) 1/5/94 + */ + +#ifndef _SPARC_INTR_H_ +#define _SPARC_INTR_H_ + +#ifdef _KERNEL +#include <sys/evcount.h> + +/* + * Interrupt handler chains. Interrupt handlers should return 0 for + * ``not me'' or 1 (``I took care of it''). intr_establish() inserts a + * handler into the list. The handler is called with its (single) + * argument, or with a pointer to a clockframe if ih_arg is NULL. + * ih_ipl specifies the interrupt level that should be blocked when + * executing this handler. + */ +struct intrhand { + int (*ih_fun)(void *); + void *ih_arg; + int ih_ipl; + int ih_vec; /* ipl for vmstat */ + struct evcount ih_count; + struct intrhand *ih_next; /* global list */ +}; +extern struct intrhand *intrhand[15]; /* XXX obio.c */ + +void intr_establish(int, struct intrhand *, int, const char *); +void vmeintr_establish(int, int, struct intrhand *, int, const char *); + +/* + * intr_fasttrap() is a lot like intr_establish, but is used for ``fast'' + * interrupt vectors (vectors that are not shared and are handled in the + * trap window). Such functions must be written in assembly. + */ +int intr_fasttrap(int, void (*)(void), int (*)(void *), void *); +void intr_fastuntrap(int); + +void intr_init(void); + +/* + * Soft interrupt handler chains. In addition to a struct intrhand for + * proper dispatching, we also remember a pending state as well as the + * bits to frob in the software interrupt register. + */ +struct sintrhand { + struct intrhand sih_ih; + int sih_pending; /* nonzero if triggered */ + int sih_hw; /* hw dependent */ + int sih_ipl; /* ipl it's registered at */ +}; + +void softintr_disestablish(void *); +void *softintr_establish(int, void (*)(void *), void *); +void softintr_schedule(void *); + +/* XXX legacy software interrupts */ +extern void *softnet_ih; +#define setsoftnet() softintr_schedule(softnet_ih) + +#endif /* _KERNEL */ +#endif /* _SPARC_INTR_H_ */ |