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/* $OpenBSD: intr.h,v 1.11 2009/03/15 20:39:53 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.
*/
/*
* Copyright (C) 2000 Steve Murphree, Jr.
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _M88K_INTR_H_
#define _M88K_INTR_H_
#ifdef _KERNEL
#ifndef _LOCORE
int getipl(void);
int setipl(int level);
int raiseipl(int level);
int spl0(void);
/* 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
#endif /* _LOCORE */
#define splsoftclock() raiseipl(IPL_SOFTINT)
#define splsoftnet() raiseipl(IPL_SOFTINT)
#define splbio() raiseipl(IPL_BIO)
#define splnet() raiseipl(IPL_NET)
#define spltty() raiseipl(IPL_TTY)
#define splclock() raiseipl(IPL_CLOCK)
#define splstatclock() raiseipl(IPL_STATCLOCK)
#define splsched() raiseipl(IPL_SCHED)
#define splvm() raiseipl(IPL_VM)
#define splhigh() setipl(IPL_HIGH)
#define spllock() splhigh()
#define splx(x) ((x) ? setipl((x)) : spl0())
/*
* Generic software interrupt support for all m88k platforms.
*/
#ifndef _LOCORE
#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_disestablish(void *);
void softintr_dispatch(int);
void *softintr_establish(int, void (*)(void *), void *);
void softintr_init(void);
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 /* _M88K_INTR_H_ */
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