[OpenBIOS] PCI setup code

Ronald G. Minnich rminnich at lanl.gov
Wed Mar 29 16:13:47 CEST 2000

On Wed, 29 Mar 2000, Colin Jensen wrote:

> You can't seriously suggest that the operating system should be able
> to detect the motherboard type automatically!  While in *your*
> application, you could hard code the motherboard setups into Linux,
> this is generally Not A Solution.

read my mail. I said that openbios can set the motherboard type, and Linux
can pick it up. Read my mail.

> Marcus put it best: "IRQ assignment can't be done in the operating
> system".  And this is for a simple reason: operating systems generally
> can't be hard-coded to a particular motherboard.  And THERE IS NO WAY
> to automatically detect a motherboard type.  NONE.  NADA.  CAN'T GO
> THERE.  The BIOS, since it is going to be *glued* to the motherboard,
> is a much more reasonable choice for hard coding... 

No kidding. read my mail. The BIOS can tell Linux what type the
motherboard is via the PARAM method already used to communicate memsize
and other vital stuff.

Once you know the motherboard type, you can do IRQ assignment in the
OS. And as experience is showing us here, you can probably do a better job
than the BIOSes out there. 


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