1 /* $NetBSD: psl.h,v 1.13 2007/10/17 19:53:42 garbled 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 #if (! defined(_LOCORE)) && (! defined(hpcarm)) 49 #include <arm/softintr.h> 50 #endif 51 52 /* 53 * These are the different SPL states 54 * 55 * Each state has an interrupt mask associated with it which 56 * indicate which interrupts are allowed. 57 */ 58 59 #define _SPL_0 0 60 #define _SPL_SOFT 1 61 #define _SPL_SOFTCLOCK 1 62 #define _SPL_SOFTNET 2 63 #define _SPL_BIO 3 64 #define _SPL_NET 4 65 #define _SPL_SOFTSERIAL 5 66 #define _SPL_TTY 6 67 #define _SPL_VM 7 68 #define _SPL_AUDIO 8 69 #define _SPL_CLOCK 9 70 #define _SPL_STATCLOCK 10 71 #define _SPL_HIGH 11 72 #define _SPL_SERIAL 12 73 #define _SPL_LEVELS 13 74 75 #define spl0() splx(_SPL_0) 76 #define splsoft() raisespl(_SPL_SOFT) 77 #define splsoftnet() raisespl(_SPL_SOFTNET) 78 #define splsoftclock() raisespl(_SPL_SOFTCLOCK) 79 #define splbio() raisespl(_SPL_BIO) 80 #define splnet() raisespl(_SPL_NET) 81 #define splsoftserial() raisespl(_SPL_SOFTSERIAL) 82 #define spltty() raisespl(_SPL_TTY) 83 #define spllpt() spltty() 84 #define splvm() raisespl(_SPL_VM) 85 #define splaudio() raisespl(_SPL_AUDIO) 86 #define splclock() raisespl(_SPL_CLOCK) 87 #define splstatclock() raisespl(_SPL_STATCLOCK) 88 #define splserial() raisespl(_SPL_SERIAL) 89 #define splhigh() raisespl(_SPL_HIGH) 90 91 #define splsched() splhigh() 92 #define spllock() splhigh() 93 94 #ifdef _KERNEL 95 #ifndef _LOCORE 96 int raisespl __P((int)); 97 int lowerspl __P((int)); 98 int splx __P((int)); 99 100 void _setsoftintr (int si); 101 102 extern int current_spl_level; 103 104 extern u_int spl_masks[_SPL_LEVELS + 1]; 105 106 typedef uint8_t ipl_t; 107 typedef struct { 108 uint8_t _spl; 109 } ipl_cookie_t; 110 111 int ipl_to_spl(ipl_t); 112 113 static inline ipl_cookie_t 114 makeiplcookie(ipl_t ipl) 115 { 116 117 return (ipl_cookie_t){._spl = (uint8_t)ipl_to_spl(ipl)}; 118 } 119 120 static inline int 121 splraiseipl(ipl_cookie_t icookie) 122 { 123 124 return raisespl(icookie._spl); 125 } 126 #endif /* _LOCORE */ 127 #endif /* _KERNEL */ 128 129 #endif /* _ARM_PSL_H_ */ 130 /* End of psl.h */ 131