[Nouveau] offer to help, DCB

Maarten Lankhorst maarten.lankhorst at canonical.com
Tue Sep 24 00:12:02 PDT 2013


Op 24-09-13 06:44, Andy Ritger schreef:
> Hi Nouveau developers,
> NVIDIA is releasing public documentation on certain aspects of our GPUs,
> with the intent to address areas that impact the out-of-the-box usability
> of NVIDIA GPUs with Nouveau.  We intend to provide more documentation
> over time, and guidance in additional areas as we are able.
> As a first step towards that, we've posted a document here:
>     ftp://download.nvidia.com/open-gpu-doc/DCB/1/DCB-4.0-Specification.html
> that documents the Device Control Block ("DCB") layout in the VBIOS.
> The DCB describes board topology and the board's display connectors.
> I suspect much of the information in that document is not news for
> the Nouveau community, but hopefully it will be helpful to confirm your
> understanding or flesh out the implementation of a few unhandled cases.
> A few of us who work on NVIDIA's proprietary Linux GPU driver will pay
> attention to nouveau at lists.freedesktop.org and try to chime in when
> we can.
> If there are specific areas of documentation that would most help you, that
> feedback would help NVIDIA prioritize our documentation efforts.
> If you have specific questions for NVIDIA, you can ask here, or direct
> them to: open-gpu-doc at nvidia.com.  I can't promise we'll be able to answer
> everything, but we'll provide best-effort in areas where we are able.
You rock! :D

Our biggest struggle at the moment is the video clocking and power management, which is highly device specific
and depends on configuration too. A complete video bios documentation would be nice too, I understand that will
take a bit longer than just the dcb. :)


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