Re: [RFC PATCH v1 11/18] mips/PCI: get rid of device resource fixups

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On Mon, Jan 30, 2012 at 7:54 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> On Mon, Jan 30, 2012 at 6:42 PM, Yoichi Yuasa <yuasa@xxxxxxxxxxxxxx> wrote:
>> Hi,
>>
>> On Mon, 30 Jan 2012 09:58:05 -0700
>> Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
>>
>>> Tell the PCI core about host bridge address translation so it can take
>>> care of bus-to-resource conversion for us.
>>>
>>> N.B. cobalt_legacy_ide_fixup() does scary things with resources, but I
>>> *think* it will still work because we're still making the same adjustments,
>>> just in the opposite order.  Here are the legacy IDE resource.start
>>> values I expect:
>>>
>>>          current                                        new
>>>
>>>            0x1f0   (pci_setup_device)                 0x1f0
>>>                    (pci_bus_to_resource)       + 0xf0000000
>>>     - 0xf0000000   (cobalt_legacy_ide_fixup)   - 0xf0000000
>>>     + 0xf0000000   (pcibios_fixup_bus)
>>>     ------------                               ------------
>>>            0x1f0    final value                       0x1f0
>>
>> It seems to be unable to handle the offset correctly.
>>
>> failed on Cobalt:
>>
>> pata_via 0000:00:09.1: BAR 0: can't reserve [io  0x100001f0-0x100001f7]
>> pata_via 0000:00:09.1: failed to request/iomap BARs for port 0 (errno=-16)
>> pata_via 0000:00:09.1: BAR 2: can't reserve [io  0x10000170-0x10000177]
>> pata_via 0000:00:09.1: failed to request/iomap BARs for port 1 (errno=-16)
>> pata_via 0000:00:09.1: no available native port
>
> Thank you very much for testing this.  Could you collect the complete
> dmesg and /proc/ioport contents, before and after my patches?

Ping :)  I'll try to figure this out, but it would be easier if I had
the info mentioned above.  Thanks!

Bjorn
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