1 /* $NetBSD: intr.h,v 1.16 2023/07/11 11:06:04 riastradh 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 Tohru Nishimura. 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 _MACHINE_INTR_H 33 #define _MACHINE_INTR_H 34 35 #if defined(_KERNEL) || defined(_KMEMUSER) 36 typedef struct { 37 uint16_t _psl; 38 } ipl_cookie_t; 39 #endif 40 41 #ifdef _KERNEL 42 43 /* 44 * spl functions 45 */ 46 #include <machine/psl.h> 47 48 #define spl0() _spl0() 49 #define splnone() spl0() 50 #define splsoftclock() splraise1() 51 #define splsoftbio() splraise1() 52 #define splsoftnet() splraise1() 53 #define splsoftserial() splraise1() 54 #define splvm() splraise4() 55 #define splsched() splraise5() 56 #define splhigh() spl7() 57 58 #define IPL_NONE 0 59 #define IPL_SOFTCLOCK 1 60 #define IPL_SOFTBIO 2 61 #define IPL_SOFTNET 3 62 #define IPL_SOFTSERIAL 4 63 #define IPL_VM 5 64 #define IPL_SCHED 6 65 #define IPL_HIGH 7 66 #define NIPL 8 67 68 extern const uint16_t ipl2psl_table[NIPL]; 69 70 typedef int ipl_t; 71 72 static inline ipl_cookie_t 73 makeiplcookie(ipl_t ipl) 74 { 75 76 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; 77 } 78 79 static inline int 80 splraiseipl(ipl_cookie_t icookie) 81 { 82 83 return _splraise(icookie._psl); 84 } 85 86 static inline void 87 splx(int sr) 88 { 89 90 __asm volatile("movew %0,%%sr" : : "di" (sr)); 91 } 92 93 #endif /* _KERNEL */ 94 95 #endif /* _MACHINE_INTR_H */ 96