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