On Mon, 15 Jan 2001, Linus Torvalds wrote:
> On Mon, 15 Jan 2001, Tobias Ringstrom wrote:
> >
> > Last time I checked this was issued for perfectly known and valid bridges
> > that advertice no IO resources. Isn't it a bit silly to issue that
> > warning for that case, or am I missing something?
>
> Ehh - so what do they bridge, then?
>
> I'd say that a bridge that doesn't seem to bridge any IO or MEM region,
> yet has stuff behind it, THAT is the silly thing. Thus the "silly"
> warning.
I'm talking about bridges that bridge memory, but not io, which is quite
common. (AGP bridges)
I do not have my PCI book right now, but there are two registers,
basically io_base and io_limit, and if io_limit == io_base-1, that means
that no io is bridged.
I still think its silly. ;-)
/Tobias
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This archive was generated by hypermail 2b29 : Mon Jan 15 2001 - 21:00:41 EST