/* $NetBSD: openpic_common.c,v 1.9 2020/07/06 11:02:44 rin Exp $ */ /*- * Copyright (c) 2007 Michael Lorenz * 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. * * 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: openpic_common.c,v 1.9 2020/07/06 11:02:44 rin Exp $"); #ifdef _KERNEL_OPT #include "opt_openpic.h" #endif #include <sys/param.h> #include <sys/kernel.h> #include <uvm/uvm_extern.h> #include <machine/pio.h> #include <powerpc/openpic.h> #include <powerpc/pic/picvar.h> volatile unsigned char *openpic_base; void opic_finish_setup(struct pic_ops *pic) { uint32_t cpumask = 0; int i; #ifdef OPENPIC_DISTRIBUTE for (i = 0; i < ncpu; i++) cpumask |= (1 << cpu_info[i].ci_index); #else cpumask = 1; #endif for (i = 0; i < pic->pic_numintrs; i++) { /* send all interrupts to all active CPUs */ openpic_write(OPENPIC_IDEST(i), cpumask); } } void openpic_set_priority(int cpu, int pri) { u_int x; x = openpic_read(OPENPIC_CPU_PRIORITY(cpu)); x &= ~OPENPIC_CPU_PRIORITY_MASK; x |= pri; openpic_write(OPENPIC_CPU_PRIORITY(cpu), x); } int opic_get_irq(struct pic_ops *pic, int mode) { return openpic_read_irq(curcpu()->ci_index); } void opic_ack_irq(struct pic_ops *pic, int irq) { openpic_eoi(curcpu()->ci_index); } |