/* $OpenBSD: intr.h,v 1.26 2025/05/11 19:41:05 miod Exp $ */ /* $NetBSD: intr.h,v 1.8 2001/01/14 23:50:30 thorpej Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Kranenburg. * * 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. * * 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 FOUNDATION 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 _MACHINE_INTR_H_ #define _MACHINE_INTR_H_ #include <sparc64/sparc64/intreg.h> #include <sys/evcount.h> /* * Interrupt handler chains. Interrupt handlers should return 0 for * ``not me'' or 1 (``I took care of it''). intr_establish() inserts a * handler into the list. The handler is called with its (single) * argument, or with a pointer to a clockframe if ih_arg is NULL. */ struct intrhand { int (*ih_fun)(void *); void *ih_arg; short ih_number; /* interrupt number */ /* the H/W provides */ char ih_pil; /* interrupt priority */ char ih_mpsafe; struct intrhand *ih_next; /* global list */ struct intrhand *ih_pending; /* pending list */ volatile u_int64_t *ih_map; /* interrupt map reg */ volatile u_int64_t *ih_clr; /* clear interrupt reg */ void (*ih_ack)(struct intrhand *); struct evcount ih_count; /* # of interrupts */ const void *ih_bus; /* parent bus */ struct cpu_info *ih_cpu; /* target */ char ih_name[32]; /* device name */ }; extern struct intrhand *intrlev[MAXINTNUM]; void intr_establish(struct intrhand *); /* XXX - arbitrary numbers; no interpretation is defined yet */ #define IPL_NONE 0 /* nothing */ #define IPL_SOFTINT 1 /* softint */ #define IPL_SOFTCLOCK 1 /* timeouts */ #define IPL_SOFTNET 2 /* protocol stack */ #define IPL_BIO PIL_BIO /* block I/O */ #define IPL_NET PIL_NET /* network */ #define IPL_SOFTTTY 4 /* delayed terminal handling */ #define IPL_TTY PIL_TTY /* terminal */ #define IPL_VM PIL_VM /* memory allocation */ #define IPL_AUDIO PIL_AUD /* audio */ #define IPL_CLOCK PIL_CLOCK /* clock */ #define IPL_SERIAL PIL_SER /* serial */ #define IPL_SCHED PIL_SCHED /* scheduler */ #define IPL_STATCLOCK PIL_STATCLOCK /* statclock */ #define IPL_HIGH PIL_HIGH /* everything */ #define spl0() _spl(IPL_NONE) #define splsoftclock() _splraise(IPL_SOFTCLOCK) #define splsoftnet() _splraise(IPL_SOFTNET) #define splbio() _splraise(IPL_BIO) #define splnet() _splraise(IPL_NET) #define splsofttty() _splraise(IPL_SOFTTTY) #define spltty() _splraise(IPL_TTY) #define splvm() _splraise(IPL_VM) #define splaudio() _splraise(IPL_AUDIO) #define splclock() _splraise(IPL_CLOCK) #define splserial() _splraise(IPL_SERIAL) #define splsched() _splraise(IPL_SCHED) #define splstatclock() _splraise(IPL_STATCLOCK) #define splhigh() _splraise(IPL_HIGH) #define splx(_oldipl) _splx(_oldipl) #define splzs() splserial() #define IPL_MPFLOOR IPL_SERIAL #define IPL_MPSAFE 0x100 int splraise(int); void intr_barrier(void *); void *softintr_establish(int, void (*)(void *), void *); void softintr_disestablish(void *); void softintr_schedule(void *); void *softintr_establish_raw(int, void (*)(void *), void *); #define softintr_disestablish_raw(ih) softintr_disestablish(ih) #define softintr_schedule_raw(ih) softintr_schedule(ih) void send_softint(int, struct intrhand *); #endif /* _MACHINE_INTR_H_ */
