intr_machdep.h revision 151658 
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 151658 2005-10-25 19:48:48Z jhb $
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#define IV_NAMLEN	1024
37
38#define	IR_FREE		(PIL_MAX * 2)
39
40#define	IH_SHIFT	PTR_SHIFT
41#define	IQE_SHIFT	5
42#define	IV_SHIFT	5
43
44#define	PIL_LOW		1	/* stray interrupts */
45#define	PIL_ITHREAD	2	/* interrupts that use ithreads */
46#define	PIL_RENDEZVOUS	3	/* smp rendezvous ipi */
47#define	PIL_AST		4	/* ast ipi */
48#define	PIL_STOP	5	/* stop cpu ipi */
49#define	PIL_FAST	13	/* fast interrupts */
50#define	PIL_TICK	14
51
52struct trapframe;
53
54typedef	void ih_func_t(struct trapframe *);
55typedef	void iv_func_t(void *);
56
57struct ithd;
58
59struct intr_request {
60	struct	intr_request *ir_next;
61	iv_func_t *ir_func;
62	void	*ir_arg;
63	u_int	ir_vec;
64	u_int	ir_pri;
65};
66
67struct intr_vector {
68	iv_func_t *iv_func;
69	void	*iv_arg;
70	struct	intr_event *iv_event;
71	u_int	iv_pri;
72	u_int	iv_vec;
73};
74
75extern ih_func_t *intr_handlers[];
76extern struct intr_vector intr_vectors[];
77
78void	intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
79		   void *iva);
80void	intr_init1(void);
81void	intr_init2(void);
82int	inthand_add(const char *name, int vec, void (*handler)(void *),
83    void *arg, int flags, void **cookiep);
84int	inthand_remove(int vec, void *cookie);
85
86ih_func_t intr_fast;
87
88#endif
89