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