1/* $NetBSD: psl.h,v 1.21 2016/01/23 21:39:18 christos 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#include <sys/types.h> 70 71int raisespl (int); 72int lowerspl (int); 73void splx (int); 74 75typedef uint8_t ipl_t; 76typedef struct { 77 uint8_t _ipl; 78} ipl_cookie_t; 79 80static inline ipl_cookie_t 81makeiplcookie(ipl_t ipl) 82{ 83 84 return (ipl_cookie_t){._ipl = (uint8_t)ipl}; 85} 86 87static inline int 88splraiseipl(ipl_cookie_t icookie) 89{ 90 91 return raisespl(icookie._ipl); 92} 93#endif /* _LOCORE */ 94#endif /* _KERNEL */ 95 96#endif /* _ARM_PSL_H_ */ 97/* End of psl.h */ 98