intr_machdep.h revision 203697 
1/*-
2 * Copyright (c) 2004 Juli Mallett <jmallett@FreeBSD.org>
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/mips/include/intr_machdep.h 203697 2010-02-09 06:24:43Z neel $
27 */
28
29#ifndef	_MACHINE_INTR_MACHDEP_H_
30#define	_MACHINE_INTR_MACHDEP_H_
31
32#ifdef TARGET_XLR_XLS
33/*
34 * XLR/XLS uses its own intr_machdep.c and has
35 * a different number of interupts. This probably
36 * should be placed somewhere else.
37 */
38
39struct mips_intrhand {
40        struct  intr_event *mih_event;
41        driver_intr_t      *mih_disable;
42        volatile long       *cntp;  /* interrupt counter */
43};
44
45extern struct mips_intrhand mips_intr_handlers[];
46#define XLR_MAX_INTR 64
47
48#else
49#define NHARD_IRQS	6
50#define NSOFT_IRQS	2
51#endif
52
53struct trapframe;
54
55void cpu_init_interrupts(void);
56void cpu_establish_hardintr(const char *, driver_filter_t *, driver_intr_t *,
57    void *, int, int, void **);
58void cpu_establish_softintr(const char *, driver_filter_t *, void (*)(void*),
59    void *, int, int, void **);
60void cpu_intr(struct trapframe *);
61
62/*
63 * Allow a platform to override the default hard interrupt mask and unmask
64 * functions. The 'arg' can be cast safely to an 'int' and holds the mips
65 * hard interrupt number to mask or unmask.
66 */
67typedef void (*cpu_intr_mask_t)(void *arg);
68typedef void (*cpu_intr_unmask_t)(void *arg);
69void cpu_set_hardintr_mask_func(cpu_intr_mask_t func);
70void cpu_set_hardintr_unmask_func(cpu_intr_unmask_t func);
71
72/*
73 * Opaque datatype that represents intr counter
74 */
75typedef unsigned long* mips_intrcnt_t;
76
77mips_intrcnt_t mips_intrcnt_create(const char *);
78void mips_intrcnt_setname(mips_intrcnt_t, const char *);
79
80static __inline void
81mips_intrcnt_inc(mips_intrcnt_t counter)
82{
83	if (counter)
84		atomic_add_long(counter, 1);
85}
86#endif /* !_MACHINE_INTR_MACHDEP_H_ */
87