1 /* $NetBSD: intr.h,v 1.10 2007/12/03 15:33:49 ad 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _MACHINE_INTR_H 40 #define _MACHINE_INTR_H 41 42 #ifdef _KERNEL 43 44 /* 45 * spl functions; all but spl0 are done in-line 46 */ 47 #include <machine/psl.h> 48 49 #define splnone() spl0() 50 #define splsoftbio() splraise1() 51 #define splsoftclock() splraise1() 52 #define splsoftnet() splraise1() 53 #define splsoftserial() splraise1() 54 #define splvm() spl7() 55 #define splsched() spl7() 56 #define splhigh() spl7() 57 58 /* watch out for side effects */ 59 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) 60 61 int spl0 __P((void)); 62 63 #define IPL_NONE 0 64 #define IPL_SOFTCLOCK 1 65 #define IPL_SOFTBIO 2 66 #define IPL_SOFTNET 3 67 #define IPL_SOFTSERIAL 4 68 #define IPL_VM 5 69 #define IPL_SCHED 6 70 #define IPL_HIGH 7 71 #define NIPL 8 72 73 extern const int ipl2spl_table[NIPL]; 74 75 typedef int ipl_t; 76 typedef struct { 77 uint16_t _spl; 78 } ipl_cookie_t; 79 80 static inline ipl_cookie_t 81 makeiplcookie(ipl_t ipl) 82 { 83 84 return (ipl_cookie_t){._spl = ipl2spl_table[ipl]}; 85 } 86 87 static inline int 88 splraiseipl(ipl_cookie_t icookie) 89 { 90 91 return _splraise(icookie._spl); 92 } 93 94 #endif /* _KERNEL */ 95 96 #endif /* _MACHINE_INTR_H */ 97