1 | /* $NetBSD: evtchn.h,v 1.23 2015/03/14 10:49:36 bouyer Exp $ */ |
2 | |
3 | /* |
4 | * |
5 | * Copyright (c) 2004 Christian Limpach. |
6 | * All rights reserved. |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions |
10 | * are met: |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #ifndef _XEN_EVENTS_H_ |
30 | #define _XEN_EVENTS_H_ |
31 | |
32 | #define NR_PIRQS 256 |
33 | |
34 | extern struct evtsource *evtsource[]; |
35 | |
36 | void events_default_setup(void); |
37 | void events_init(void); |
38 | bool events_suspend(void); |
39 | bool events_resume(void); |
40 | |
41 | unsigned int evtchn_do_event(int, struct intrframe *); |
42 | void call_evtchn_do_event(int, struct intrframe *); |
43 | void call_xenevt_event(int); |
44 | int event_set_handler(int, int (*func)(void *), void *, int, const char *); |
45 | int event_remove_handler(int, int (*func)(void *), void *); |
46 | |
47 | struct cpu_info; |
48 | struct intrhand; |
49 | void event_set_iplhandler(struct cpu_info *, struct intrhand *, int); |
50 | |
51 | extern int debug_port; |
52 | extern int xen_debug_handler(void *); |
53 | |
54 | int bind_virq_to_evtch(int); |
55 | int bind_pirq_to_evtch(int); |
56 | int unbind_pirq_from_evtch(int); |
57 | int unbind_virq_from_evtch(int); |
58 | |
59 | evtchn_port_t bind_vcpu_to_evtch(cpuid_t); |
60 | |
61 | struct pintrhand { |
62 | int pirq; |
63 | int evtch; |
64 | int (*func)(void *); |
65 | void *arg; |
66 | }; |
67 | |
68 | struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int, |
69 | const char *); |
70 | void pirq_disestablish(struct pintrhand *); |
71 | |
72 | #endif /* _XEN_EVENTS_H_ */ |
73 | |