/* $OpenBSD: intr.h,v 1.16 2005/05/01 09:55:49 miod Exp $ */ /* $NetBSD: intr.h,v 1.2 1997/07/24 05:43:08 scottr Exp $ */ /*- * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 REGENTS OR CONTRIBUTORS 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 _HP300_INTR_H_ #define _HP300_INTR_H_ #include #include #include #ifdef _KERNEL struct isr { LIST_ENTRY(isr) isr_link; int (*isr_func)(void *); void *isr_arg; int isr_ipl; int isr_priority; struct evcount isr_count; }; /* * spl functions; all but spl0 are done in-line */ #define _spl(s) \ ({ \ register int _spl_r; \ \ __asm __volatile ("clrl %0; movew sr,%0; movew %1,sr" : \ "=&d" (_spl_r) : "di" (s)); \ _spl_r; \ }) #define _splraise(s) \ ({ \ int _spl_r; \ \ __asm __volatile (" \ clrl d0 ; \ movw sr,d0 ; \ movl d0,%0 ; \ andw #0x700,d0 ; \ movw %1,d1 ; \ andw #0x700,d1 ; \ cmpw d0,d1 ; \ jle 1f ; \ movw %1,sr ; \ 1:" : \ "=&d" (_spl_r) : \ "di" (s) : \ "d0", "d1"); \ _spl_r; \ }) /* * These four globals contain the appropriate PSL_S|PSL_IPL? values * to raise interupt priority to the requested level. */ extern unsigned short hp300_bioipl; extern unsigned short hp300_netipl; extern unsigned short hp300_ttyipl; extern unsigned short hp300_impipl; /* * Interrupt "levels". These are a more abstract representation * of interrupt levels, and do not have the same meaning as m68k * CPU interrupt levels. They serve two purposes: * * - properly order ISRs in the list for that CPU ipl * - compute CPU PSL values for the spl*() calls. */ #define IPL_NONE 0 #define IPL_SOFTNET 1 #define IPL_SOFTCLOCK 1 #define IPL_BIO 1 #define IPL_NET 2 #define IPL_TTY 3 #define IPL_TTYNOBUF 4 /* XXX */ #define IPL_CLOCK 6 #define IPL_STATCLOCK 6 #define IPL_HIGH 7 /* These spl calls are used by machine-independent code. */ #define splsoft() _splraise(PSL_S | PSL_IPL1) #define splsoftclock() splsoft() #define splsoftnet() splsoft() #define splbio() _splraise(hp300_bioipl) #define splnet() _splraise(hp300_netipl) #define spltty() _splraise(hp300_ttyipl) #define splimp() _splraise(hp300_impipl) #define splclock() _splraise(PSL_S | PSL_IPL6) #define splstatclock() _splraise(PSL_S | PSL_IPL6) #define splvm() _splraise(hp300_impipl) #define splhigh() _spl(PSL_S | PSL_IPL7) /* watch out for side effects */ #define splx(s) ((s) & PSL_IPL ? _spl((s)) : spl0()) /* * Simulated software interrupt register. */ extern volatile u_int8_t ssir; #define SIR_NET 0x01 #define SIR_CLOCK 0x02 #define siron(mask) \ __asm __volatile ( "orb %0,_ssir" : : "i" ((mask))) #define siroff(mask) \ __asm __volatile ( "andb %0,_ssir" : : "ir" (~(mask))); #define setsoftnet() siron(SIR_NET) #define setsoftclock() siron(SIR_CLOCK) /* locore.s */ int spl0(void); /* intr.c */ void intr_init(void); void intr_establish(struct isr *, const char *); void intr_disestablish(struct isr *); void intr_dispatch(int); void intr_printlevels(void); #endif /* _KERNEL */ #endif /* _HP300_INTR_H_ */