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
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*-
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* Copyright (c) 1999, 2000 Matthew R. Green
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* Copyright (c) 2001, 2003 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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* 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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* from: NetBSD: ebus.c,v 1.26 2001/09/10 16:27:53 eeh Exp
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Helper functions which can be used in both ISA and EBus code.
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*/
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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/openfirm.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sparc64/pci/ofw_pci.h>
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#include <sparc64/isa/ofw_isa.h>
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#include "pcib_if.h"
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int
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ofw_isa_range_restype(struct isa_ranges *range)
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{
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int ps = ISA_RANGE_PS(range);
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switch (ps) {
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case OFW_PCI_CS_IO:
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return (SYS_RES_IOPORT);
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case OFW_PCI_CS_MEM32:
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return (SYS_RES_MEMORY);
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default:
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panic("ofw_isa_range_restype: illegal space %x", ps);
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}
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}
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/* XXX: this only supports PCI as parent bus right now. */
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int
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ofw_isa_range_map(struct isa_ranges *range, int nrange, u_long *start,
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u_long *end, int *which)
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{
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struct isa_ranges *r;
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uint64_t offs, cstart, cend;
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int i;
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for (i = 0; i < nrange; i++) {
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r = &range[i];
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cstart = ISA_RANGE_CHILD(r);
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cend = cstart + r->size;
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if (*start < cstart || *start > cend)
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continue;
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if (*end < cstart || *end > cend) {
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panic("ofw_isa_map_iorange: iorange crosses pci "
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"ranges (%#lx not in %#lx - %#lx)", *end, cstart,
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cend);
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}
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offs = ISA_RANGE_PHYS(r);
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*start = *start + offs - cstart;
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*end = *end + offs - cstart;
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if (which != NULL)
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*which = i;
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return (ofw_isa_range_restype(r));
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}
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panic("ofw_isa_map_iorange: could not map range %#lx - %#lx",
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*start, *end);
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}
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ofw_pci_intr_t
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ofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii,
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ofw_isa_intr_t intr)
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{
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struct isa_regs reg;
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uint8_t maskbuf[sizeof(reg) + sizeof(intr)];
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device_t pbridge;
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ofw_isa_intr_t mintr;
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pbridge = device_get_parent(device_get_parent(bridge));
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/*
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* If we get a match from using the map, the resulting INO is
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* fully specified, so we may not continue to map.
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*/
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if (!ofw_bus_lookup_imap(node, ii, ®, sizeof(reg),
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&intr, sizeof(intr), &mintr, sizeof(mintr), maskbuf)) {
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/* Try routing at the parent bridge. */
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mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr);
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}
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return (mintr);
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}
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