[Bug 28106] radeon KMS causes hardware conflict/interference with Intel wifi and audio, crashes wireless

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28106

--- Comment #52 from Maciek Borzecki <maciek.borzecki at gmail.com> 2011-07-14 11:48:21 PDT ---
(In reply to comment #51)
> There's a difference not only in board frequencies, but also the PCIE lanes
> number (0 means full throttle, or is "more performant" than 1 I guess ??).

The PCIe lanes information seems to be read from the card itself (at least
that's for RV515), look here:
http://lxr.linux.no/#linux+v2.6.39/drivers/gpu/drm/radeon/r300.c#L553
While 1 is understandable (PCIe x1), 0 value is confusing and I can't tell if
that'x x16 or not. Maybe one of the driver authorsa can provide some input.

I've failed to locate any docs that contain information on the registers
exposed on the PCI.

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