Messages in this thread | | | Subject | Re: /proc/pci deprecation? | From | Alan Cox <> | Date | 09 Dec 2002 18:29:37 +0000 |
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On Mon, 2002-12-09 at 17:00, Linus Torvalds wrote: > On 9 Dec 2002, Alan Cox wrote: > > I wonder if this is why we have all these problems with VIA chipset > > interrupt handling. According to VIA docs they _do_ use > > PCI_INTERRUPT_LINE on integrated devices to select the IRQ routing > > between APIC and PCI/ISA etc, as well as 0 meaning "IRQ disabled" > > Whee.. That sounds like a load of crock in the first place, since the > PCI_INTERRUPT_LINE thing should be just a scratch register as far as I > know. However, it doesn't really matter - we definitely should never write > to it anyway, so the VIA behaviour while strange should still be > acceptable.
Tested and verified. If I leave it alone non apic mode works. To use APIC mode I have to write the new IRQ value into that register. I've shoved that into the driver for now, since its a demented chip specific horror.
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