2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 Jake Burkholder.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #ifndef _MACHINE_INTR_MACHDEP_H_
32 #define _MACHINE_INTR_MACHDEP_H_
34 #define IRSR_BUSY (1 << 5)
36 #define PIL_MAX (1 << 4)
37 #define IV_MAX (1 << 11)
39 #define IR_FREE (PIL_MAX * 2)
41 #define IH_SHIFT PTR_SHIFT
45 #define PIL_LOW 1 /* stray interrupts */
46 #define PIL_PREEMPT 2 /* preempt idle thread CPU IPI */
47 #define PIL_ITHREAD 3 /* interrupts that use ithreads */
48 #define PIL_RENDEZVOUS 4 /* SMP rendezvous IPI */
49 #define PIL_AST 5 /* asynchronous trap IPI */
50 #define PIL_HARDCLOCK 6 /* hardclock broadcast */
51 #define PIL_FILTER 11 /* filter interrupts */
52 #define PIL_BRIDGE 12 /* bridge interrupts */
53 #define PIL_STOP 13 /* stop CPU IPI */
54 #define PIL_TICK 14 /* tick interrupts */
58 #define INTR_BRIDGE INTR_MD1
62 typedef void ih_func_t(struct trapframe *);
63 typedef void iv_func_t(void *);
66 struct intr_request *ir_next;
73 struct intr_controller {
74 void (*ic_enable)(void *);
75 void (*ic_disable)(void *);
76 void (*ic_assign)(void *);
77 void (*ic_clear)(void *);
83 const struct intr_controller *iv_ic;
85 struct intr_event *iv_event;
93 extern ih_func_t *intr_handlers[];
94 extern struct intr_vector intr_vectors[];
97 void intr_add_cpu(u_int cpu);
99 int intr_bind(int vec, u_char cpu);
100 int intr_describe(int vec, void *ih, const char *descr);
101 void intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
103 void intr_init1(void);
104 void intr_init2(void);
105 int intr_controller_register(int vec, const struct intr_controller *ic,
107 int inthand_add(const char *name, int vec, int (*filt)(void *),
108 void (*handler)(void *), void *arg, int flags, void **cookiep);
109 int inthand_remove(int vec, void *cookie);
115 #endif /* !_MACHINE_INTR_MACHDEP_H_ */