1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2004 Juli Mallett <jmallett@FreeBSD.org>
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
29 #ifndef _MACHINE_INTR_MACHDEP_H_
30 #define _MACHINE_INTR_MACHDEP_H_
31
32 #include <sys/vmmeter.h>
33 #include <machine/atomic.h>
34
35 #if defined(CPU_RMI) || defined(CPU_NLM)
36 #define XLR_MAX_INTR 64
37 #else
38 #define NHARD_IRQS 6
39 #define NSOFT_IRQS 2
40 #endif
41
42 struct trapframe;
43
44 void cpu_init_interrupts(void);
45 void cpu_establish_hardintr(const char *, driver_filter_t *, driver_intr_t *,
46 void *, int, int, void **);
47 void cpu_establish_softintr(const char *, driver_filter_t *, void (*)(void*),
48 void *, int, int, void **);
49 void cpu_intr(struct trapframe *);
50
51 /*
52 * Allow a platform to override the default hard interrupt mask and unmask
53 * functions. The 'arg' can be cast safely to an 'int' and holds the mips
54 * hard interrupt number to mask or unmask.
55 */
56 typedef void (*cpu_intr_mask_t)(void *arg);
57 typedef void (*cpu_intr_unmask_t)(void *arg);
58 void cpu_set_hardintr_mask_func(cpu_intr_mask_t func);
59 void cpu_set_hardintr_unmask_func(cpu_intr_unmask_t func);
60
61 /*
62 * Opaque datatype that represents intr counter
63 */
64 typedef unsigned long* mips_intrcnt_t;
65
66 mips_intrcnt_t mips_intrcnt_create(const char *);
67 void mips_intrcnt_setname(mips_intrcnt_t, const char *);
68
69 static __inline void
mips_intrcnt_inc(mips_intrcnt_t counter)70 mips_intrcnt_inc(mips_intrcnt_t counter)
71 {
72 if (counter)
73 atomic_add_long(counter, 1);
74 VM_CNT_INC(v_intr);
75 }
76 #endif /* !_MACHINE_INTR_MACHDEP_H_ */
77