Re: /proc/pci deprecation?

From: Alan Cox (
Date: Mon Dec 09 2002 - 09:11:07 EST

On Mon, 2002-12-09 at 01:54, Linus Torvalds wrote:
> - we should _never_ update the PCI_INTERRUPT_LINE register, because it
> destroys boot loader information (the same way we need to not overwrite
> BIOS extended areas and ACPI areas etc in order to be able to reboot
> cleanly)

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"


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