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Diffstat (limited to 'sys/arch/m68k/include/intr.h')
| -rw-r--r-- | sys/arch/m68k/include/intr.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sys/arch/m68k/include/intr.h b/sys/arch/m68k/include/intr.h new file mode 100644 index 00000000000..02846b8d158 --- /dev/null +++ b/sys/arch/m68k/include/intr.h @@ -0,0 +1,112 @@ +/* $OpenBSD: intr.h,v 1.1 2009/03/15 20:40:25 miod Exp $ */ +/* + * Copyright (c) 2001 Wasabi Systems, Inc. + * All rights reserved. + * + * Written by Jason R. Thorpe for Wasabi Systems, Inc. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed for the NetBSD Project by + * Wasabi Systems, Inc. + * 4. The name of Wasabi Systems, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC + * 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. + */ + +#ifndef _M68K_INTR_H_ +#define _M68K_INTR_H_ + +#ifdef _KERNEL +#ifndef _LOCORE + +/* SPL asserts */ +#ifdef DIAGNOSTIC +/* + * Although this function is implemented in MI code, it must be in this MD + * header because we don't want this header to include MI includes. + */ +void splassert_fail(int, int, const char *); +extern int splassert_ctl; +void splassert_check(int, const char *); +#define splassert(__wantipl) do { \ + if (splassert_ctl > 0) { \ + splassert_check(__wantipl, __func__); \ + } \ +} while (0) +#define splsoftassert(wantipl) splassert(IPL_SOFTINT) +#else +#define splassert(wantipl) do { /* nothing */ } while (0) +#define splsoftassert(wantipl) do { /* nothing */ } while (0) +#endif + +/* + * Generic software interrupt support for all m68k platforms. + */ + +#define IPL_SOFT 0 +#define IPL_SOFTCLOCK 1 +#define IPL_SOFTNET 2 +#define IPL_SOFTTTY 3 + +#define SI_SOFT 0 /* for IPL_SOFT */ +#define SI_SOFTCLOCK 1 /* for IPL_SOFTCLOCK */ +#define SI_SOFTNET 2 /* for IPL_SOFTNET */ +#define SI_SOFTTTY 3 /* for IPL_SOFTTTY */ + +#define SI_NQUEUES 4 + +#include <machine/mutex.h> +#include <sys/queue.h> + +struct soft_intrhand { + TAILQ_ENTRY(soft_intrhand) sih_list; + void (*sih_func)(void *); + void *sih_arg; + struct soft_intrq *sih_siq; + int sih_pending; +}; + +struct soft_intrq { + TAILQ_HEAD(, soft_intrhand) siq_list; + int siq_si; + struct mutex siq_mtx; +}; + +void *softintr_establish(int, void (*)(void *), void *); +void softintr_disestablish(void *); +void softintr_init(void); +void softintr_dispatch(int); +void softintr_schedule(void *); + +extern int softpending; + +/* XXX For legacy software interrupts. */ +extern struct soft_intrhand *softnet_intrhand; + +#define setsoftnet() softintr_schedule(softnet_intrhand) + +#endif /* _LOCORE */ + +#endif /* _KERNEL */ +#endif /* _M68K_INTR_H_ */ |