1 /* $NetBSD: intr.h,v 1.20 2008/06/23 01:49:31 isaki 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 /* spl0 requires checking for software interrupts */ 38 void spl0(void); 39 40 #define splsoftbio() splraise1() 41 #define splsoftclock() splraise1() 42 #define splsoftnet() splraise1() 43 #define splsoftserial() splraise1() 44 #define splvm() splraise5() 45 #define splsched() spl7() 46 #define splhigh() spl7() 47 48 #define splnone() spl0() 49 #define splzs() splraise5() /* disallow serial interrupts */ 50 51 /* watch out for side effects */ 52 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) 53 54 #define IPL_NONE 0 55 #define IPL_SOFTCLOCK 1 56 #define IPL_SOFTBIO 2 57 #define IPL_SOFTNET 3 58 #define IPL_SOFTSERIAL 4 59 #define IPL_VM 5 60 #define IPL_SCHED 6 61 #define IPL_HIGH 7 62 #define NIPL 8 63 64 extern const uint16_t ipl2psl_table[NIPL]; 65 66 typedef int ipl_t; 67 typedef struct { 68 uint16_t _psl; 69 } ipl_cookie_t; 70 71 static inline ipl_cookie_t 72 makeiplcookie(ipl_t ipl) 73 { 74 75 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; 76 } 77 78 static inline int 79 splraiseipl(ipl_cookie_t icookie) 80 { 81 82 return _splraise(icookie._psl); 83 } 84 85 #endif /* !_X68K_INTR_H_ */ 86