Messages in this thread | | | Date | Sat, 19 Feb 2005 20:02:36 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: IBM Thinkpad G41 PCMCIA problems [Was: Yenta TI: ... no PCI interrupts. Fish. Please report.] |
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On Sat, 19 Feb 2005, Steven Rostedt wrote: > > On Sat, 2005-02-19 at 18:10 -0800, Linus Torvalds wrote: > > > I _think_ it's the code in arch/i386/pci/fixup.c that does this. See the > > > > static void __devinit pci_fixup_transparent_bridge(struct pci_dev *dev) > > > > thing, and try to disable it. Maybe that rule is wrong, and triggers much > > too often? > > > > Linus, > > Thank you very much! That was it. The following patch made everything > look good.
Ok. I've fired off an email to some Intel people asking what the real rules are wrt Intel PCI-PCI bridges. It may be that it's not that particular chip, but some generic rule (like "all Intel bridges act like they are subtractive decode _except_ if they actually have the IO start/stop ranges set" or something like that).
If anybody on the list can figure the Intel bridge decoding rules out, please holler..
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