/* $NetBSD: intr.h,v 1.22.32.1 2023/08/09 17:42:02 martin Exp $ */ /* * Copyright (C) 1997 Scott Reynolds * Copyright (C) 1998 Darrin Jewell * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _NEXT68K_INTR_H_ #define _NEXT68K_INTR_H_ #include /* Probably want to dealwith IPL's here @@@ */ #if defined(_KERNEL) || defined(_KMEMUSER) typedef struct { uint16_t _psl; } ipl_cookie_t; #endif #ifdef _KERNEL /* spl0 requires checking for software interrupts */ /* watch out for side effects */ #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0()) #define splsoftbio() splraise1() #define splsoftnet() splraise1() #define splsoftclock() splraise1() #define splsoftserial() splraise1() #define splvm() splraise6() #define splhigh() spl7() #define splsched() spl7() #define spldma() splraise6() /****************************************************************/ #define IPL_NONE 0 #define IPL_SOFTCLOCK 1 #define IPL_SOFTBIO 2 #define IPL_SOFTNET 3 #define IPL_SOFTSERIAL 4 #define IPL_VM 5 #define IPL_SCHED 6 #define IPL_HIGH 7 #define NIPL 8 extern const uint16_t ipl2psl_table[NIPL]; typedef int ipl_t; static __inline ipl_cookie_t makeiplcookie(ipl_t ipl) { return (ipl_cookie_t){._psl = ipl2psl_table[ipl]}; } static __inline int splraiseipl(ipl_cookie_t icookie) { return _splraise(icookie._psl); } /****************************************************************/ /* locore.s */ int spl0(void); extern volatile u_long *intrstat; extern volatile u_long *intrmask; #define INTR_SETMASK(x) (*intrmask = (x)) #define INTR_ENABLE(x) (*intrmask |= NEXT_I_BIT(x)) #define INTR_DISABLE(x) (*intrmask &= (~NEXT_I_BIT(x))) #define INTR_OCCURRED(x) (*intrstat & NEXT_I_BIT(x)) #endif /* _KERNEL */ #endif /* _NEXT68K_INTR_H_ */