intr.c revision 1.3 
1/*	$NetBSD: intr.c,v 1.3 2008/04/28 20:24:10 martin 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/param.h>
33#include <sys/errno.h>
34#include <sys/intr.h>
35#include <sys/kmem.h>
36#include <sys/cpu.h>
37
38#include "rump.h"
39#include "rumpuser.h"
40
41struct v_dodgy {
42	void	(*func)(void *);
43	void	*arg;
44};
45
46void *
47softint_establish(u_int flags, void (*func)(void *), void *arg)
48{
49	struct v_dodgy *vd;
50
51	vd = kmem_alloc(sizeof(*vd), KM_SLEEP);
52	if (vd != NULL) {
53		vd->func = func;
54		vd->arg = arg;
55	}
56	return vd;
57}
58
59void
60softint_disestablish(void *arg)
61{
62
63	kmem_free(arg, sizeof(struct v_dodgy));
64}
65
66void
67softint_schedule(void *arg)
68{
69	struct v_dodgy *vd;
70
71	vd = arg;
72	(*(vd->func))(arg);
73}
74
75bool
76cpu_intr_p(void)
77{
78
79	return false;
80}
81