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Subject: Re: [patch 2.5] 2-pass PCI probing, generic part
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linus Torvalds <torvalds@transmeta.com>,
       Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
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On Thu, 2003-01-09 at 22:26, Benjamin Herrenschmidt wrote:
> I completely agree. For example, I have already a bunch of cases where I
> have to explicitely "hide" the host bridge from linux PCI layer as those
> have BARs that mustn't be touched. A typical example is the 405gp
> internal PCI host. It has a BAR that represents the view of system RAM
> from bus mastering PCI devices. Of course, the kernel doesn't understand
> that and tries to remap it away from 0 where it belongs ;)

Ditto The X-box people would like to explicitly hide a pile of apparently ghost
devices that hang the bus solid if you read them.
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