1 /* $NetBSD: intr.h,v 1.22 2023/07/11 11:50:39 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Minoura Makoto and 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 _X68K_INTR_H_
33 #define _X68K_INTR_H_
34
35 #include <machine/psl.h>
36
37 #define spl0() _spl0()
38
39 #define splsoftbio() splraise1()
40 #define splsoftclock() splraise1()
41 #define splsoftnet() splraise1()
42 #define splsoftserial() splraise1()
43 #define splvm() splraise5()
44 #define splsched() spl7()
45 #define splhigh() spl7()
46
47 #define splnone() spl0()
48 #define splzs() splraise5() /* disallow serial interrupts */
49
50 #define IPL_NONE 0
51 #define IPL_SOFTCLOCK 1
52 #define IPL_SOFTBIO 2
53 #define IPL_SOFTNET 3
54 #define IPL_SOFTSERIAL 4
55 #define IPL_VM 5
56 #define IPL_SCHED 6
57 #define IPL_HIGH 7
58 #define NIPL 8
59
60 extern const uint16_t ipl2psl_table[NIPL];
61
62 typedef int ipl_t;
63 typedef struct {
64 uint16_t _psl;
65 } ipl_cookie_t;
66
67 #ifdef _KERNEL
68
69 static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)70 makeiplcookie(ipl_t ipl)
71 {
72
73 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
74 }
75
76 static inline int
splraiseipl(ipl_cookie_t icookie)77 splraiseipl(ipl_cookie_t icookie)
78 {
79
80 return _splraise(icookie._psl);
81 }
82
83 static inline void
splx(int sr)84 splx(int sr)
85 {
86
87 __asm volatile("movew %0,%%sr" : : "di" (sr));
88 }
89
90 #endif /* _KERNEL */
91
92 #endif /* !_X68K_INTR_H_ */
93