svn commit: r258930 - head/sys/dev/drm2

[Jean-Sébastien Pédron]

On 04.12.2013 21:18, John Baldwin wrote:
> On Wednesday, December 04, 2013 2:04:57 pm Jean-Sebastien Pedron wrote:
>> Author: dumbbell
>> Date: Wed Dec  4 19:04:56 2013
>> New Revision: 258930
>> URL: http://svnweb.freebsd.org/changeset/base/258930
>>
>> Log:
>>   drm: Read PCIER_LINK_CAP/PCIER_LINK_CAP2 from the PCI bridge
>>   
>>   Before this fix, capabilities were read from vgapci and were incorrect.
> 
> Eh, vgapci is the right place to read this.  The LINK_CAP here is telling
> you the width of the slot you are plugged into, not the width of the card
> that is plugged into the slot.

I'm sorry, my knowledge of PCI is very limited (still learning) and I
don't understand your comment. Could you please expand on it?

I believe this code has the correct result (eg, same result as Linux 3.8
on the same computer), but maybe I'm doing it wrong and I was just lucky.

-- 
Jean-Sébastien Pédron

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