[Mesa-dev] Broadcom VC4 project

Peter Hanzel hanzelpeter at gmail.com
Wed Jun 18 00:33:23 PDT 2014


Hello.

Can you provide a code that you already have? I am very interested to
see DRM/KMS/Mesa on RPi.

On Wed, Jun 18, 2014 at 9:28 AM, Eric Anholt <eric at anholt.net> wrote:
> To those who have been curious what I was up to: I wasn't sure when I
> could announce my new projecct, I just got the ack day before yesterday,
> and I've been a little busy.
>
> I'm working toward building a Mesa driver for Broadcom VC4 (aka
> Raspberry Pi).  At the moment I'm still bringing up the DRM side of
> things, but I hope to be doing bits of userspace in the next few days.
> Current status is I have a skeleton DRM KMS driver that's going to talk
> to the firmware for modesetting, and now I'm starting on the execution
> side of things.
>
> I'm probably going to start out doing a gallium driver for simplicity,
> to avoid having to do all the DRI crap we've got in brw_context.c and
> texture miptree validation and getting user data into VBOs and all that
> other almost-boilerplate.  Long term I may end up switching to classic
> so I can get swrast fallbacks and the ability to implement single-copy
> manually-tiled TexImage uploads like.  For now I want to get to drawing
> triangles as soon as I can.
>
> Major thanks go to Simon Hall, whose port of the 2708 android driver
> code drop is what I've been using as a reference for how the 3D engine
> commands are submitted.
>
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>


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