1 /* $NetBSD: intr.h,v 1.22 2023/07/11 11:07:54 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe and Steve C. Woodford. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _MVME68K_INTR_H 33 #define _MVME68K_INTR_H 34 35 #include <machine/psl.h> 36 37 #define IPL_NONE 0 /* disable only this interrupt */ 38 #define IPL_SOFTCLOCK 1 /* clock software interrupts */ 39 #define IPL_SOFTBIO 2 /* block software interrupts */ 40 #define IPL_SOFTNET 3 /* network software interrupts */ 41 #define IPL_SOFTSERIAL 4 /* serial software interrupts */ 42 #define IPL_VM 5 43 #define IPL_SCHED 6 44 #define IPL_HIGH 7 45 #define NIPL 8 46 47 #if defined(_KERNEL) || defined(_KMEMUSER) 48 typedef struct { 49 uint16_t _psl; 50 } ipl_cookie_t; 51 #endif 52 53 #ifdef _KERNEL 54 #define spl0() _spl0() 55 #define splsoftclock() splraise1() 56 #define splsoftbio() splraise1() 57 #define splsoftnet() splraise1() 58 #define splsoftserial() splraise1() 59 #define splvm() splraise3() 60 #define splsched() spl7() 61 #define splhigh() spl7() 62 63 #ifndef _LOCORE 64 65 extern const uint16_t ipl2psl_table[NIPL]; 66 67 typedef int ipl_t; 68 69 static __inline ipl_cookie_t 70 makeiplcookie(ipl_t ipl) 71 { 72 73 return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; 74 } 75 76 static __inline int 77 splraiseipl(ipl_cookie_t icookie) 78 { 79 80 return _splraise(icookie._psl); 81 } 82 83 static __inline void 84 splx(int sr) 85 { 86 87 __asm volatile("movw %0,%%sr" : : "di" (sr)); 88 } 89 90 #endif /* !_LOCORE */ 91 #endif /* _KERNEL */ 92 93 #endif /* _MVME68K_INTR_H */ 94