/* $NetBSD: interrupt.c,v 1.4 2008/04/28 20:23:18 martin Exp $ */ /*- * Copyright (c) 2004 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by UCHIYAMA Yasushi. * * 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. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: interrupt.c,v 1.4 2008/04/28 20:23:18 martin Exp $"); #include <sys/param.h> #include <sys/intr.h> #include <uvm/uvm_extern.h> /* uvmexp.intrs */ #include <machine/sbdvar.h> const uint32_t *ipl_sr_bits; static void (*platform_intr)(uint32_t, uint32_t, uint32_t, uint32_t); void intr_init(void) { platform_intr = platform.intr; (*platform.intr_init)(); } void intr_establish(int irq, int (*func)(void *), void *arg) { (*platform.intr_establish)(irq, func, arg); } void intr_disestablish(void *arg) { (*platform.intr_disestablish)(arg); } void cpu_intr(uint32_t status, uint32_t cause, uint32_t pc, uint32_t ipending) { struct cpu_info *ci; ci = curcpu(); uvmexp.intrs++; ci->ci_idepth++; (*platform_intr)(status, cause, pc, ipending); ci->ci_idepth--; #ifdef __HAVE_FAST_SOFTINTS ipending &= (MIPS_SOFT_INT_MASK_1 | MIPS_SOFT_INT_MASK_0); if (ipending == 0) return; _clrsoftintr(ipending); softintr_dispatch(ipending); #endif }