xref: /netbsd-src/sys/arch/hp300/include/intr.h (revision c60cfbdc3c5eb32d910bf0edbc605a096e49617b)
1 /*	$NetBSD: intr.h,v 1.39 2024/01/19 03:09:04 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 2024 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _HP300_INTR_H_
33 #define _HP300_INTR_H_
34 
35 #ifdef _KERNEL
36 
37 #include <m68k/psl.h>
38 
39 #define	MACHINE_PSL_IPL_SOFTCLOCK	PSL_IPL1
40 #define	MACHINE_PSL_IPL_SOFTBIO		PSL_IPL1
41 #define	MACHINE_PSL_IPL_SOFTNET		PSL_IPL1
42 #define	MACHINE_PSL_IPL_SOFTSERIAL	PSL_IPL1
43 #define	MACHINE_PSL_IPL_VM		PSL_IPL5
44 #define	MACHINE_PSL_IPL_SCHED		PSL_IPL6
45 
46 #define	MACHINE_INTREVCNT_NAMES						\
47 	{ "spurious", "lev1", "lev2", "lev3", "lev4", "lev5", "clock", "nmi" }
48 
49 #if defined(_M68K_INTR_PRIVATE) && defined(_KERNEL_OPT)
50 #include "audio.h"
51 #if NAUDIO > 0
52 /*
53  * Audio interrupts also come in on level 6, and those are dispatched
54  * from a custom stub which handles the clock inline before calling the
55  * general interrupt dispatch.  We want to suppress warning about stray
56  * level 6 interrupts in the common code in case the clock interrupted
57  * but audio did not.
58  */
59 #define	MACHINE_AUTOVEC_IGNORE_STRAY(x)	((x) == 6)
60 #endif
61 #endif
62 
63 #endif /* _KERNEL */
64 
65 #include <m68k/intr.h>
66 
67 #ifdef _KERNEL
68 
69 #ifdef _M68K_INTR_PRIVATE
70 struct hp300_intrhand {
71 	struct m68k_intrhand       ih_super;
72 	LIST_ENTRY(hp300_intrhand) ih_dio_link;
73 };
74 #endif
75 
76 /* These spl calls are _not_ to be used by machine-independent code. */
77 #define	splhil()	splraise1()
78 #define	splkbd()	splhil()
79 
80 /*
81  * Interface wrappers.
82  */
83 
84 static inline void *
intr_establish(int (* func)(void *),void * arg,int ipl,int isrpri)85 intr_establish(int (*func)(void *), void *arg, int ipl, int isrpri)
86 {
87 	return m68k_intr_establish(func, arg, (void *)0, 0, ipl, isrpri, 0);
88 }
89 
90 static inline void
intr_disestablish(void * ih)91 intr_disestablish(void *ih)
92 {
93 	m68k_intr_disestablish(ih);
94 }
95 
96 #endif /* _KERNEL */
97 
98 #endif	/* _HP300_INTR_H */
99