intr_machdep.h revision 97508 
1/*-
2 * Copyright (c) 2001 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/sparc64/include/intr_machdep.h 97508 2002-05-29 19:25:14Z jake $
27 */
28
29#ifndef	_MACHINE_INTR_MACHDEP_H_
30#define	_MACHINE_INTR_MACHDEP_H_
31
32#define	IRSR_BUSY	(1 << 5)
33
34#define	PIL_MAX		(1 << 4)
35#define	IV_MAX		(1 << 11)
36
37#define	IR_FREE		(PIL_MAX * 2)
38
39#define	IH_SHIFT	PTR_SHIFT
40#define	IQE_SHIFT	5
41#define	IV_SHIFT	5
42
43#define	PIL_LOW		1	/* stray interrupts */
44#define	PIL_ITHREAD	2	/* interrupts that use ithreads */
45#define	PIL_RENDEZVOUS	3	/* smp rendezvous ipi */
46#define	PIL_AST		4	/* ast ipi */
47#define	PIL_STOP	5	/* stop cpu ipi */
48#define	PIL_FAST	13	/* fast interrupts */
49#define	PIL_TICK	14
50
51struct trapframe;
52
53typedef	void ih_func_t(struct trapframe *);
54typedef	void iv_func_t(void *);
55
56struct ithd;
57
58struct intr_request {
59	struct	intr_request *ir_next;
60	iv_func_t *ir_func;
61	void	*ir_arg;
62	u_int	ir_vec;
63	u_int	ir_pri;
64};
65
66struct intr_vector {
67	iv_func_t *iv_func;
68	void	*iv_arg;
69	struct	ithd *iv_ithd;
70	u_int	iv_pri;
71	u_int	iv_vec;
72};
73
74extern ih_func_t *intr_handlers[];
75extern struct intr_vector intr_vectors[];
76
77void	intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
78		   void *iva);
79void	intr_init1(void);
80void	intr_init2(void);
81int	inthand_add(const char *name, int vec, void (*handler)(void *),
82    void *arg, int flags, void **cookiep);
83int	inthand_remove(int vec, void *cookie);
84
85ih_func_t intr_dequeue;
86
87#endif
88