1 /* $NetBSD: intr.h,v 1.7 2006/03/29 08:55:40 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 1996 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Gordon W. Ross. 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 _SUN3_INTR_H_ 40 #define _SUN3_INTR_H_ 1 41 42 #include <machine/psl.h> 43 44 #if defined(_KERNEL) && !defined(_LOCORE) 45 46 #define IPL_NONE 0 47 #define IPL_SOFTCLOCK (PSL_S|PSL_IPL1) 48 #define IPL_SOFTNET (PSL_S|PSL_IPL1) 49 #define IPL_BIO (PSL_S|PSL_IPL2) 50 #define IPL_NET (PSL_S|PSL_IPL3) 51 #define IPL_TTY (PSL_S|PSL_IPL4) 52 #define IPL_VM (PSL_S|PSL_IPL4) 53 /* Intersil clock hardware interrupts (hard-wired at 5) */ 54 #define IPL_CLOCK (PSL_S|PSL_IPL5) 55 #define IPL_STATCLOCK IPL_CLOCK 56 #define IPL_SCHED (PSL_S|PSL_IPL7) 57 #define IPL_HIGH (PSL_S|PSL_IPL7) 58 #define IPL_LOCK (PSL_S|PSL_IPL7) 59 #define IPL_SERIAL (PSL_S|PSL_IPL4) 60 61 /* 62 * Define inline functions for PSL manipulation. 63 * These are as close to macros as one can get. 64 * When not optimizing gcc will call the locore.s 65 * functions by the same names, so breakpoints on 66 * these functions will work normally, etc. 67 * (See the GCC extensions info document.) 68 */ 69 70 static __inline int _getsr(void); 71 72 /* Get current sr value. */ 73 static __inline int 74 _getsr(void) 75 { 76 int rv; 77 78 __asm volatile ("clrl %0; movew %%sr,%0" : "=&d" (rv)); 79 return (rv); 80 } 81 82 /* 83 * The rest of this is sun3 specific, because other ports may 84 * need to do special things in spl0() (i.e. simulate SIR). 85 * Suns have a REAL interrupt register, so spl0() and splx(s) 86 * have no need to check for any simulated interrupts, etc. 87 */ 88 89 #define spl0() _spl0() /* we have real software interrupts */ 90 #define splx(x) _spl(x) 91 92 /* IPL used by soft interrupts: netintr(), softclock() */ 93 #define spllowersoftclock() spl1() 94 95 #define splraiseipl(x) _splraise(x) 96 97 #include <sys/spl.h> 98 99 #endif /* KERNEL && !_LOCORE */ 100 #endif /* _SUN3_INTR_H_ */ 101