05c62b81bf
the PIC also informs the platform at which IRQ level it can start assigning IPIs, since this can depend on the number of IRQs supported for external interrupts.
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*-
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* Copyright 2003 by Peter Grehan. 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* The psim iobus attachment for the OpenPIC interrupt controller.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <machine/intr_machdep.h>
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#include <machine/md_var.h>
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#include <machine/nexusvar.h>
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#include <machine/pio.h>
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#include <machine/resource.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <sys/rman.h>
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#include <machine/openpicvar.h>
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#include <powerpc/psim/iobusvar.h>
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#include "pic_if.h"
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/*
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* PSIM IOBus interface
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*/
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static int openpic_iobus_probe(device_t);
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static device_method_t openpic_iobus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, openpic_iobus_probe),
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DEVMETHOD(device_attach, openpic_attach),
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/* PIC interface */
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DEVMETHOD(pic_dispatch, openpic_dispatch),
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DEVMETHOD(pic_enable, openpic_enable),
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DEVMETHOD(pic_eoi, openpic_eoi),
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DEVMETHOD(pic_ipi, openpic_ipi),
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DEVMETHOD(pic_mask, openpic_mask),
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DEVMETHOD(pic_unmask, openpic_unmask),
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{ 0, 0 }
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};
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static driver_t openpic_iobus_driver = {
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"openpic",
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openpic_iobus_methods,
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sizeof(struct openpic_softc)
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};
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DRIVER_MODULE(openpic, iobus, openpic_iobus_driver, openpic_devclass, 0, 0);
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static int
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openpic_iobus_probe(device_t dev)
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{
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char *name;
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name = iobus_get_name(dev);
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if (strcmp(name, "interrupt-controller") != 0)
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return (ENXIO);
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/*
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* The description was already printed out in the nexus
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* probe, so don't do it again here
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*/
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device_set_desc(dev, OPENPIC_DEVSTR);
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return (0);
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}
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