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94b4a038a1
the code for parsing interrupt maps) to PowerPC and reflect their new MI status by moving them to the shared dev/ofw directory. This commit also modifies the OFW PCI enumeration procedure on PowerPC to allow the bus to find non-firmware-enumerated devices that Apple likes to add, and adds some useful Open Firmware properties (compat and name) to the pnpinfo string of children on OFW SBus, EBus, PCI, and MacIO links. Because of the change to PCI enumeration on PowerPC, X has started working again on PPC machines with Grackle hostbridges. Reviewed by: marius Obtained from: sparc64
108 lines
3.3 KiB
C
108 lines
3.3 KiB
C
/*-
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* Copyright (c) 2003 by Thomas Moestl <tmm@FreeBSD.org>
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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 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 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED 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 OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ofw_pci.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_pci.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcib_private.h>
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#include "pcib_if.h"
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#include <sparc64/pci/ofw_pci.h>
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#include <sparc64/pci/ofw_pcib_subr.h>
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void
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ofw_pcib_gen_setup(device_t bridge)
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{
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struct ofw_pcib_gen_softc *sc;
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sc = device_get_softc(bridge);
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sc->ops_pcib_sc.dev = bridge;
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sc->ops_node = ofw_bus_get_node(bridge);
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KASSERT(sc->ops_node != 0,
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("ofw_pcib_gen_setup: no ofw pci parent bus!"));
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ofw_bus_setup_iinfo(sc->ops_node, &sc->ops_iinfo,
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sizeof(ofw_pci_intr_t));
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}
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int
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ofw_pcib_gen_route_interrupt(device_t bridge, device_t dev, int intpin)
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{
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struct ofw_pcib_gen_softc *sc;
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struct ofw_bus_iinfo *ii;
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struct ofw_pci_register reg;
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ofw_pci_intr_t pintr, mintr;
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uint8_t maskbuf[sizeof(reg) + sizeof(pintr)];
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sc = device_get_softc(bridge);
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ii = &sc->ops_iinfo;
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if (ii->opi_imapsz > 0) {
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pintr = intpin;
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if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, ®,
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sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr),
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maskbuf)) {
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/*
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* If we've found a mapping, return it and don't map
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* it again on higher levels - that causes problems
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* in some cases, and never seems to be required.
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*/
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return (mintr);
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}
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} else if (intpin >= 1 && intpin <= 4) {
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/*
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* When an interrupt map is missing, we need to do the
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* standard PCI swizzle and continue mapping at the parent.
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*/
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return (pcib_route_interrupt(bridge, dev, intpin));
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}
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/* Try at the parent. */
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return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent(
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bridge)), bridge, intpin));
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}
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phandle_t
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ofw_pcib_gen_get_node(device_t bridge, device_t dev)
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{
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struct ofw_pcib_gen_softc *sc;
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sc = device_get_softc(bridge);
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return (sc->ops_node);
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}
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