1/*	$NetBSD: intr.h,v 1.60 2022/09/07 00:40:19 knakahara Exp $	*/
2/*	NetBSD intr.h,v 1.15 2004/10/31 10:39:34 yamt Exp	*/
3
4/*-
5 * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Charles M. Hannum, and by Jason R. Thorpe.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef _XEN_INTR_H_
34#define	_XEN_INTR_H_
35
36#include <xen/intrdefs.h>
37
38#ifndef _LOCORE
39#include <xen/include/public/xen.h>
40#include <xen/include/public/event_channel.h>
41#include <x86/intr.h>
42#include <xen/xen.h>
43#include <xen/hypervisor.h>
44#include <machine/pic.h>
45#include <sys/evcnt.h>
46
47#include "opt_xen.h"
48
49
50struct cpu_info;
51/*
52 * Struct describing an event channel.
53 */
54
55struct evtsource {
56	int ev_maxlevel;		/* max. IPL for this source */
57	uint64_t ev_imask;		/* interrupt mask */
58	struct intrhand *ev_handlers;	/* handler chain */
59	struct evcnt ev_evcnt;		/* interrupt counter */
60	struct cpu_info *ev_cpu;        /* cpu on which this event is bound */
61	char ev_intrname[INTRIDBUF];	/* interrupt string */
62	char ev_xname[INTRDEVNAMEBUF];	/* handler device list */
63	struct intrsource *ev_isl;	/* entry in intr sources list */
64};
65
66extern struct intrstub xenev_stubs[];
67extern short irq2port[NR_EVENT_CHANNELS]; /* actually port + 1, so that 0 is invaid */
68
69#ifdef MULTIPROCESSOR
70int xen_intr_biglock_wrapper(void *);
71#endif
72
73#if defined(DOM0OPS) || NPCI > 0
74int xen_pic_to_gsi(struct pic *, int);
75int xen_map_msi_pirq(struct pic *, int);
76int xen_map_msix_pirq(struct pic *, int);
77void xen_pci_msi_release(struct pic *, int);
78#endif /* defined(DOM0OPS) || NPCI > 0 */
79
80#ifdef MULTIPROCESSOR
81void xen_ipi_init(void);
82int xen_send_ipi(struct cpu_info *, uint32_t);
83void xen_broadcast_ipi(uint32_t);
84#else
85#define xen_ipi_init(_1) ((void) 0) /* nothing */
86#define xen_send_ipi(_i1, _i2) (0) /* nothing */
87#define xen_broadcast_ipi(_i1) ((void) 0) /* nothing */
88#endif /* MULTIPROCESSOR */
89
90void *xen_intr_establish_xname(int, struct pic *, int, int, int, int (*)(void *),
91    void *, bool, const char *);
92void *xen_intr_establish(int, struct pic *, int, int, int, int (*)(void *),
93    void *, bool);
94void xen_intr_mask(struct intrhand *);
95void xen_intr_unmask(struct intrhand *);
96void xen_intr_disestablish(struct intrhand *);
97
98struct intrsource *xen_intr_allocate_io_intrsource(const char *);
99void xen_intr_free_io_intrsource(const char *);
100
101#endif /* !_LOCORE */
102
103#endif /* _XEN_INTR_H_ */
104