1 /* $NetBSD: intr.h,v 1.14 2011/11/26 04:40:51 tsutsui 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 #ifdef _KERNEL 36 37 /* 38 * spl functions; all but spl0 are done in-line 39 */ 40 #include <machine/psl.h> 41 42 #define splnone() spl0() 43 #define splsoftclock() splraise1() 44 #define splsoftbio() splraise1() 45 #define splsoftnet() splraise1() 46 #define splsoftserial() splraise1() 47 #define splvm() splraise4() 48 #define splsched() splraise5() 49 #define splhigh() spl7() 50 51 /* watch out for side effects */ 52 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) 53 54 int spl0(void); 55 56 #define IPL_NONE 0 57 #define IPL_SOFTCLOCK 1 58 #define IPL_SOFTBIO 2 59 #define IPL_SOFTNET 3 60 #define IPL_SOFTSERIAL 4 61 #define IPL_VM 5 62 #define IPL_SCHED 6 63 #define IPL_HIGH 7 64 #define NIPL 8 65 66 extern const uint16_t ipl2psl_table[NIPL]; 67 68 typedef int ipl_t; 69 typedef struct { 70 uint16_t _psl; 71 } ipl_cookie_t; 72 73 static inline ipl_cookie_t 74 makeiplcookie(ipl_t ipl) 75 { 76 77 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; 78 } 79 80 static inline int 81 splraiseipl(ipl_cookie_t icookie) 82 { 83 84 return _splraise(icookie._psl); 85 } 86 87 #endif /* _KERNEL */ 88 89 #endif /* _MACHINE_INTR_H */ 90