89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* $NetBSD: openpic_common.c,v 1.3 2008/04/29 06:53:02 martin Exp $ */
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/*-
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* Copyright (c) 2007 Michael Lorenz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: openpic_common.c,v 1.3 2008/04/29 06:53:02 martin Exp $");
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#include <sys/param.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <uvm/uvm_extern.h>
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#include <machine/pio.h>
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#include <powerpc/openpic.h>
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#include <arch/powerpc/pic/picvar.h>
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#include "opt_interrupt.h"
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volatile unsigned char *openpic_base;
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void
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opic_finish_setup(struct pic_ops *pic)
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{
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uint32_t cpumask = 0;
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int i;
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#ifdef OPENPIC_DISTRIBUTE
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for (i = 0; i < ncpu; i++)
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cpumask |= (1 << cpu_info[i].ci_cpuid);
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#else
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cpumask = 1;
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#endif
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for (i = 0; i < pic->pic_numintrs; i++) {
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/* send all interrupts to all active CPUs */
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openpic_write(OPENPIC_IDEST(i), cpumask);
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}
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}
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void
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openpic_set_priority(int cpu, int pri)
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{
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u_int x;
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x = openpic_read(OPENPIC_CPU_PRIORITY(cpu));
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x &= ~OPENPIC_CPU_PRIORITY_MASK;
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x |= pri;
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openpic_write(OPENPIC_CPU_PRIORITY(cpu), x);
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}
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int
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opic_get_irq(struct pic_ops *pic, int mode)
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{
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return openpic_read_irq(curcpu()->ci_index);
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}
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void
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opic_ack_irq(struct pic_ops *pic, int irq)
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{
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openpic_eoi(curcpu()->ci_index);
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}
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