1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 Juli Mallett <[email protected]>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 *
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
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 #ifndef _MACHINE_INTR_MACHDEP_H_
32 #define _MACHINE_INTR_MACHDEP_H_
33
34 #include <sys/vmmeter.h>
35 #include <machine/atomic.h>
36
37 #if defined(CPU_RMI) || defined(CPU_NLM)
38 #define XLR_MAX_INTR 64
39 #else
40 #define NHARD_IRQS 6
41 #define NSOFT_IRQS 2
42 #endif
43
44 struct trapframe;
45
46 void cpu_init_interrupts(void);
47 void cpu_establish_hardintr(const char *, driver_filter_t *, driver_intr_t *,
48 void *, int, int, void **);
49 void cpu_establish_softintr(const char *, driver_filter_t *, void (*)(void*),
50 void *, int, int, void **);
51 void cpu_intr(struct trapframe *);
52
53 /*
54 * Allow a platform to override the default hard interrupt mask and unmask
55 * functions. The 'arg' can be cast safely to an 'int' and holds the mips
56 * hard interrupt number to mask or unmask.
57 */
58 typedef void (*cpu_intr_mask_t)(void *arg);
59 typedef void (*cpu_intr_unmask_t)(void *arg);
60 void cpu_set_hardintr_mask_func(cpu_intr_mask_t func);
61 void cpu_set_hardintr_unmask_func(cpu_intr_unmask_t func);
62
63 /*
64 * Opaque datatype that represents intr counter
65 */
66 typedef unsigned long* mips_intrcnt_t;
67
68 mips_intrcnt_t mips_intrcnt_create(const char *);
69 void mips_intrcnt_setname(mips_intrcnt_t, const char *);
70
71 static __inline void
mips_intrcnt_inc(mips_intrcnt_t counter)72 mips_intrcnt_inc(mips_intrcnt_t counter)
73 {
74 if (counter)
75 atomic_add_long(counter, 1);
76 VM_CNT_INC(v_intr);
77 }
78 #endif /* !_MACHINE_INTR_MACHDEP_H_ */
79