1 /* $NetBSD: psl.h,v 1.20 2014/02/04 18:51:16 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Mark Brinicombe. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mark Brinicombe 18 * for the NetBSD Project. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * RiscBSD kernel project 36 * 37 * psl.h 38 * 39 * spl prototypes. 40 * Eventually this will become a set of defines. 41 * 42 * Created : 21/07/95 43 */ 44 45 #ifndef _ARM_PSL_H_ 46 #define _ARM_PSL_H_ 47 #include <machine/intr.h> 48 49 /* 50 * These are the different SPL states 51 * 52 * Each state has an interrupt mask associated with it which 53 * indicate which interrupts are allowed. 54 */ 55 56 #define spl0() splx(IPL_NONE) 57 #define splsoftclock() raisespl(IPL_SOFTCLOCK) 58 #define splsoftbio() raisespl(IPL_SOFTBIO) 59 #define splsoftnet() raisespl(IPL_SOFTNET) 60 #define splsoftserial() raisespl(IPL_SOFTSERIAL) 61 #define splvm() raisespl(IPL_VM) 62 #define splsched() raisespl(IPL_SCHED) 63 #define splhigh() raisespl(IPL_HIGH) 64 65 #define IPL_SAFEPRI IPL_NONE /* for kern_sleepq.c */ 66 67 #ifdef _KERNEL 68 #ifndef _LOCORE 69 int raisespl (int); 70 int lowerspl (int); 71 void splx (int); 72 73 typedef uint8_t ipl_t; 74 typedef struct { 75 uint8_t _ipl; 76 } ipl_cookie_t; 77 78 static inline ipl_cookie_t 79 makeiplcookie(ipl_t ipl) 80 { 81 82 return (ipl_cookie_t){._ipl = (uint8_t)ipl}; 83 } 84 85 static inline int 86 splraiseipl(ipl_cookie_t icookie) 87 { 88 89 return raisespl(icookie._ipl); 90 } 91 #endif /* _LOCORE */ 92 #endif /* _KERNEL */ 93 94 #endif /* _ARM_PSL_H_ */ 95 /* End of psl.h */ 96