1baea4807a
r259199, r259484, r259513, r259514, r259516 The kernel stack guard pages are only below the stack pointer, not above. Remove unnecessary double-setting of the thread's onfault state in copyinstr(). Open Firmware mandates that certain cross-references, in particular those in /chosen, be ihandles. The ePAPR spec makes those cross-reference phandles, since FDT has no concept of ihandles. Have the OF FDT CI module interpret queries about ihandles as cross-reference phandles. Real OF systems have an ihandle under /chosen/stdout, not a phandle. Use the right type. Rearchitect platform memory map parsing to make it less Open Firmware-centric. Remove fdtbus_bs_tag definition, which is now obsolete. The remainder of this file is also slated for future demolition. Return the correct IEEE 1275 code for "nextprop". Use the common Open Firmware PCI interrupt routing code instead of the duplicate version in dev/fdt. Configure interrupt sense based on device tree information. Simplify the ofw_bus_lookup_imap() API slightly: make it allocate maskbuf internally instead of requiring the caller to allocate it.
147 lines
5.0 KiB
C
147 lines
5.0 KiB
C
/*-
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* Copyright (c) 1999, 2000 Matthew R. Green
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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 1.52 2008/05/29 14:51:26 mrg Exp
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*/
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/*-
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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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#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/ofw_bus_subr.h>
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#include <dev/ofw/openfirm.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 - 1;
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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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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), NULL)) {
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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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