1 /* $NetBSD: intr.h,v 1.3 2018/04/19 21:50:06 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2000 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 and Steve C. Woodford.
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 _EVBCF_INTR_H
33 #define _EVBCF_INTR_H
34
35 #include <machine/psl.h>
36
37 #define IPL_NONE 0 /* disable only this interrupt */
38 #define IPL_SOFTCLOCK 1 /* clock software interrupts */
39 #define IPL_SOFTBIO 2 /* block software interrupts */
40 #define IPL_SOFTNET 3 /* network software interrupts */
41 #define IPL_SOFTSERIAL 4 /* serial software interrupts */
42 #define IPL_VM 5
43 #define IPL_SCHED 6
44 #define IPL_HIGH 7
45 #define NIPL 8
46
47 #ifdef _KERNEL
48 #define spl0() _spl0()
49 #define splsoftclock() splraise1()
50 #define splsoftbio() splraise1()
51 #define splsoftnet() splraise1()
52 #define splsoftserial() splraise1()
53 #define splvm() splraise3()
54 #define splsched() spl7()
55 #define splhigh() spl7()
56
57 #ifndef _LOCORE
58
59 extern const uint16_t ipl2psl_table[NIPL];
60
61 typedef int ipl_t;
62 typedef struct {
63 uint16_t _psl;
64 } ipl_cookie_t;
65
66 static __inline ipl_cookie_t
makeiplcookie(ipl_t ipl)67 makeiplcookie(ipl_t ipl)
68 {
69
70 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
71 }
72
73 static __inline int
splraiseipl(ipl_cookie_t icookie)74 splraiseipl(ipl_cookie_t icookie)
75 {
76
77 return _splraise(icookie._psl);
78 }
79
80 static __inline void
splx(int sr)81 splx(int sr)
82 {
83
84 __asm volatile("movw %0,%%sr" : : "di" (sr));
85 }
86
87 #endif /* !_LOCORE */
88 #endif /* _KERNEL */
89
90 #endif /* _EVBCF_INTR_H */
91