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intr.c revision 1.2.6.2
      1  1.2.6.2  yamt /*	$NetBSD: intr.c,v 1.2.6.2 2008/01/21 09:47:43 yamt Exp $	*/
      2  1.2.6.2  yamt 
      3  1.2.6.2  yamt /*-
      4  1.2.6.2  yamt  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  1.2.6.2  yamt  * All rights reserved.
      6  1.2.6.2  yamt  *
      7  1.2.6.2  yamt  * This code is derived from software contributed to The NetBSD Foundation
      8  1.2.6.2  yamt  * by Andrew Doran.
      9  1.2.6.2  yamt  *
     10  1.2.6.2  yamt  * Redistribution and use in source and binary forms, with or without
     11  1.2.6.2  yamt  * modification, are permitted provided that the following conditions
     12  1.2.6.2  yamt  * are met:
     13  1.2.6.2  yamt  * 1. Redistributions of source code must retain the above copyright
     14  1.2.6.2  yamt  *    notice, this list of conditions and the following disclaimer.
     15  1.2.6.2  yamt  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.2.6.2  yamt  *    notice, this list of conditions and the following disclaimer in the
     17  1.2.6.2  yamt  *    documentation and/or other materials provided with the distribution.
     18  1.2.6.2  yamt  * 3. All advertising materials mentioning features or use of this software
     19  1.2.6.2  yamt  *    must display the following acknowledgement:
     20  1.2.6.2  yamt  *	This product includes software developed by the NetBSD
     21  1.2.6.2  yamt  *	Foundation, Inc. and its contributors.
     22  1.2.6.2  yamt  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.2.6.2  yamt  *    contributors may be used to endorse or promote products derived
     24  1.2.6.2  yamt  *    from this software without specific prior written permission.
     25  1.2.6.2  yamt  *
     26  1.2.6.2  yamt  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.2.6.2  yamt  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.2.6.2  yamt  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.2.6.2  yamt  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.2.6.2  yamt  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.2.6.2  yamt  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.2.6.2  yamt  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.2.6.2  yamt  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.2.6.2  yamt  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.2.6.2  yamt  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.2.6.2  yamt  * POSSIBILITY OF SUCH DAMAGE.
     37  1.2.6.2  yamt  */
     38  1.2.6.2  yamt 
     39  1.2.6.2  yamt #include <sys/param.h>
     40  1.2.6.2  yamt #include <sys/errno.h>
     41  1.2.6.2  yamt #include <sys/intr.h>
     42  1.2.6.2  yamt #include <sys/kmem.h>
     43  1.2.6.2  yamt #include <sys/cpu.h>
     44  1.2.6.2  yamt 
     45  1.2.6.2  yamt #include "rump.h"
     46  1.2.6.2  yamt #include "rumpuser.h"
     47  1.2.6.2  yamt 
     48  1.2.6.2  yamt struct v_dodgy {
     49  1.2.6.2  yamt 	void	(*func)(void *);
     50  1.2.6.2  yamt 	void	*arg;
     51  1.2.6.2  yamt };
     52  1.2.6.2  yamt 
     53  1.2.6.2  yamt void *
     54  1.2.6.2  yamt softint_establish(u_int flags, void (*func)(void *), void *arg)
     55  1.2.6.2  yamt {
     56  1.2.6.2  yamt 	struct v_dodgy *vd;
     57  1.2.6.2  yamt 
     58  1.2.6.2  yamt 	vd = kmem_alloc(sizeof(*vd), KM_SLEEP);
     59  1.2.6.2  yamt 	if (vd != NULL) {
     60  1.2.6.2  yamt 		vd->func = func;
     61  1.2.6.2  yamt 		vd->arg = arg;
     62  1.2.6.2  yamt 	}
     63  1.2.6.2  yamt 	return vd;
     64  1.2.6.2  yamt }
     65  1.2.6.2  yamt 
     66  1.2.6.2  yamt void
     67  1.2.6.2  yamt softint_disestablish(void *arg)
     68  1.2.6.2  yamt {
     69  1.2.6.2  yamt 
     70  1.2.6.2  yamt 	kmem_free(arg, sizeof(struct v_dodgy));
     71  1.2.6.2  yamt }
     72  1.2.6.2  yamt 
     73  1.2.6.2  yamt void
     74  1.2.6.2  yamt softint_schedule(void *arg)
     75  1.2.6.2  yamt {
     76  1.2.6.2  yamt 	struct v_dodgy *vd;
     77  1.2.6.2  yamt 
     78  1.2.6.2  yamt 	vd = arg;
     79  1.2.6.2  yamt 	(*(vd->func))(arg);
     80  1.2.6.2  yamt }
     81  1.2.6.2  yamt 
     82  1.2.6.2  yamt bool
     83  1.2.6.2  yamt cpu_intr_p(void)
     84  1.2.6.2  yamt {
     85  1.2.6.2  yamt 
     86  1.2.6.2  yamt 	return false;
     87  1.2.6.2  yamt }
     88