/* $NetBSD: softintr.h,v 1.1 2003/05/25 13:48:01 tsutsui Exp $ */ /*- * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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 by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #ifndef _MIPS_SOFTINTR_H_ #define _MIPS_SOFTINTR_H_ #ifndef _LOCORE #include #include extern const u_int32_t mips_ipl_si_to_sr[_IPL_NSOFT]; #define setsoft(x) \ do { \ _setsoftintr(mips_ipl_si_to_sr[(x) - IPL_SOFT]); \ } while (/*CONSTCOND*/0) struct mips_soft_intrhand { TAILQ_ENTRY(mips_soft_intrhand) sih_q; struct mips_soft_intr *sih_intrhead; void (*sih_func)(void *); void *sih_arg; int sih_pending; }; struct mips_soft_intr { TAILQ_HEAD(,mips_soft_intrhand) softintr_q; struct evcnt softintr_evcnt; struct simplelock softintr_slock; unsigned long softintr_ipl; }; void softintr_init(void); void *softintr_establish(int, void (*)(void *), void *); void softintr_disestablish(void *); void softintr_dispatch(u_int32_t); #define softintr_schedule(arg) \ do { \ struct mips_soft_intrhand *__sih = (arg); \ struct mips_soft_intr *__msi = __sih->sih_intrhead; \ int __s; \ \ __s = splhigh(); \ simple_lock(&__msi->softintr_slock); \ if (__sih->sih_pending == 0) { \ TAILQ_INSERT_TAIL(&__msi->softintr_q, __sih, sih_q); \ __sih->sih_pending = 1; \ setsoft(__msi->softintr_ipl); \ } \ simple_unlock(&__msi->softintr_slock); \ splx(__s); \ } while (/*CONSTCOND*/0) /* XXX For legacy software interrupts. */ extern struct mips_soft_intrhand *softnet_intrhand; #define setsoftnet() softintr_schedule(softnet_intrhand) #endif /* !_LOCORE */ #endif /* _MIPS_SOFTINTR_H_ */