1 /* $NetBSD: intr.h,v 1.19 2007/12/03 15:34:02 ad Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1998 NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Minoura Makoto and Jason R. Thorpe. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by The NetBSD Foundation 22 * Inc. and its contributers. 23 * 4. The name of the author may not be used to endorse or promote products 24 * derived from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _NEWS68K_INTR_H_ 39 #define _NEWS68K_INTR_H_ 40 41 #include <sys/device.h> 42 #include <sys/queue.h> 43 #include <machine/psl.h> 44 #include <m68k/asm_single.h> 45 46 #define IPL_NONE 0 47 #define IPL_SOFTCLOCK 1 48 #define IPL_SOFTBIO 2 49 #define IPL_SOFTNET 3 50 #define IPL_SOFTSERIAL 4 51 #define IPL_VM 5 52 #define IPL_SCHED 6 53 #define IPL_HIGH 6 54 #define NIPL 7 55 56 typedef int ipl_t; 57 typedef struct { 58 uint16_t _psl; 59 } ipl_cookie_t; 60 61 ipl_cookie_t makeiplcookie(ipl_t); 62 63 static inline int 64 splraiseipl(ipl_cookie_t icookie) 65 { 66 67 return _splraise(icookie._psl); 68 } 69 70 static __inline void 71 splx(int sr) 72 { 73 74 __asm volatile("movw %0,%%sr" : : "di" (sr)); 75 } 76 77 /* 78 * news68k can handle software interrupts by its own hardware 79 * so has no need to check for any simulated interrupts, etc. 80 */ 81 #define spl0() _spl0() 82 83 #define splsoftbio() splraise2() 84 #define splsoftclock() splraise2() 85 #define splsoftnet() splraise2() 86 #define splsoftserial() splraise2() 87 #define splvm() splraise5() 88 #define splhigh() spl7() 89 #define splsched() spl7() 90 91 #endif /* _NEWS68K_INTR_H_ */ 92