c944338750
This machine uses a non-standard scheme to specify the interrupts to be assigned for devices in PCI slots; instead of giving the INO or full interrupt number (which is done for the other devices in this box), the firmware interrupt properties contain intpin numbers, which have to be swizzled as usual on PCI-PCI bridges; however, the PCI host bridge nodes have no interrupt map, so we need to guess the correct INO by slot number of the device or the closest PCI-PCI bridge leading to it, and the intpin. To do this, this fix makes the following changes: - Add a newbus method for sparc64 PCI host bridges to guess the INO, and glue code in ofw_pci_orb_callback() to invoke it based on a new quirk entry. The guessing is only done for interrupt numbers too low to contain any IGN found on e450s. - Create another new quirk entry was created to prevent mapping of EBus interrupts at PCI level; the e450 has full INOs in the interrupt properties of EBus devices, so trying to remap them could cause problems. - Set both quirk entries for e450s; remove the no-swizzle entry. - Determine the psycho half (bus A or B) a driver instance manages in psycho_attach() - Implement the new guessing method for psycho, using the slot number, psycho half and property value (intpin). Thanks go to the testers, especially Brian Denehy, who tested many kernels for me until I had found the right workaround. Tested by: Brian Denehy <B.Denehy@90east.com>, jake, fenner, Marius Strobl <marius@alchemy.franken.de>, Marian Dobre <mari@onix.ro> Approved by: re (scottl)
94 lines
3.0 KiB
Objective-C
94 lines
3.0 KiB
Objective-C
# Copyright (c) 2001 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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# $FreeBSD$
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <dev/ofw/openfirm.h>
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INTERFACE sparcbus;
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HEADER {
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/* Bus tag types for the get_bustag method */
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enum sbbt_id {
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SBBT_IO,
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SBBT_MEM,
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};
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};
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CODE {
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static int
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sparcbus_default_intr_pending(device_t dev, int intr)
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{
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return (SPARCBUS_INTR_PENDING(device_get_parent(dev), intr));
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}
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static u_int32_t
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sparcbus_default_guess_ino(device_t dev, phandle_t node, u_int slot,
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u_int pin)
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{
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return (SPARCBUS_GUESS_INO(device_get_parent(dev), node, slot,
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pin));
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}
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static bus_space_handle_t
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sparcbus_default_get_bus_handle(device_t dev, enum sbbt_id id,
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bus_space_handle_t childhdl, bus_space_tag_t *tag)
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{
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return (SPARCBUS_GET_BUS_HANDLE(device_get_parent(dev), id,
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childhdl, tag));
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}
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};
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# Return whether an interrupt request is pending for the INO intr.
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METHOD int intr_pending {
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device_t dev;
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int intr;
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} DEFAULT sparcbus_default_intr_pending;
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# Let the bus driver guess the INO of the device at the given slot and intpin
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# on the bus described by the node if it could not be determined from the
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# firmware properties. Returns 255 if no INO could be found (mapping will
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# continue at the parent), or the desired INO.
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METHOD u_int32_t guess_ino {
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device_t dev;
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phandle_t node;
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u_int slot;
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u_int pin;
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} DEFAULT sparcbus_default_guess_ino;
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# Get the bustag for the root bus. This is needed for ISA old-stlye
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# in[bwl]()/out[bwl]() support, where no tag retrieved from a resource is
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# passed. The returned tag is used to construct a tag for the whole ISA bus.
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METHOD bus_space_handle_t get_bus_handle {
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device_t dev;
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enum sbbt_id id;
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bus_space_handle_t childhdl;
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bus_space_tag_t *tag;
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} DEFAULT sparcbus_default_get_bus_handle;
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