From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maarten Lankhorst Subject: Re: offer to help, DCB Date: Tue, 24 Sep 2013 09:12:02 +0200 Message-ID: <52413B42.9050101@canonical.com> References: <20130924044457.GA25785@parker.nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130924044457.GA25785-4K9zQNqW3/fFT5IIyIEb6QC/G2K4zDHf@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: Andy Ritger Cc: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org Hey, 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-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.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-DDmLM1+adcqXj1p+fO2waQ@public.gmane.org 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. :) ~Maarten