1/*-
2 * SPDX-License-Identifier: MIT OR GPL-2.0-only
3 *
4 * Copyright �� 2015 Julien Grall
5 * Copyright �� 2021 Elliott Mitchell
6 *
7 * This file may be distributed separately from the Linux kernel, or
8 * incorporated into other software packages, subject to the following license:
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this source file (the "Software"), to deal in the Software without
12 * restriction, including without limitation the rights to use, copy, modify,
13 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
14 * and to permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 * IN THE SOFTWARE.
27 */
28
29#ifndef	_MACHINE__XEN_ARCH_INTR_H_
30#define	_MACHINE__XEN_ARCH_INTR_H_
31
32#include <x86/intr_machdep.h>
33#include <x86/apicvar.h>
34
35typedef struct {
36	struct intsrc		intsrc;		/* @TOP -> *xen_arch_isrc */
37	u_int			vector;		/* Global isrc vector number */
38} xen_arch_isrc_t;
39
40#include <dev/xen/bus/intr-internal.h>
41
42/******************************* ARCH wrappers *******************************/
43
44extern void xen_arch_intr_init(void);
45
46extern struct xenisrc *xen_arch_intr_alloc(void);
47extern void     xen_arch_intr_release(struct xenisrc *isrc);
48
49static inline u_int
50xen_arch_intr_next_cpu(struct xenisrc *isrc)
51{
52
53	return (apic_cpuid(intr_next_cpu(0)));
54}
55
56static inline u_long
57xen_arch_intr_execute_handlers(struct xenisrc *isrc, struct trapframe *frame)
58{
59
60	intr_execute_handlers(&isrc->xi_arch.intsrc, frame);
61	return (0);
62}
63
64static inline int
65xen_arch_intr_add_handler(const char *name, driver_filter_t filter,
66    driver_intr_t handler, void *arg, enum intr_type flags,
67    struct xenisrc *isrc, void **cookiep)
68{
69
70	return (intr_add_handler(&isrc->xi_arch.intsrc, name, filter, handler,
71	    arg, flags, cookiep, 0));
72}
73
74static inline int
75xen_arch_intr_describe(struct xenisrc *isrc, void *cookie, const char *descr)
76{
77
78	return (intr_describe(&isrc->xi_arch.intsrc, cookie, descr));
79}
80
81static inline int
82xen_arch_intr_remove_handler(struct xenisrc *isrc, void *cookie)
83{
84
85	return (intr_remove_handler(cookie));
86}
87
88static inline int
89xen_arch_intr_event_bind(struct xenisrc *isrc, u_int cpu)
90{
91
92	return (intr_event_bind(isrc->xi_arch.intsrc.is_event, cpu));
93}
94
95#endif	/* _MACHINE__XEN_ARCH_INTR_H_ */
96