[Mesa-dev] [PATCH 2/2] gallium: Add renderonly-based support for pl111+vc4.

[Christian Gmeiner]

2017-05-11 1:06 GMT+02:00 Eric Anholt <eric at anholt.net>:
> This follows the model of imx (display) and etnaviv (render): pl111 is a
> display-only device, so when asked to do GL for it, we see if we have a
> vc4 renderer, make the vc4 screen, and have vc4 call back to pl111 to do
> scanout allocations.
>
> The difference from etnaviv is that we share the same BO between vc4 and
> pl111, rather than having a vc4 bo and a pl11 bo and copies between the
> two.  The only mismatch between their requirements is that vc4 requires
> 4-pixel (at 32bpp) stride alignment, while pl111 requires that stride
> match width.  The kernel will reject any modesets to an incorrect stride,
> so the 3D driver doesn't need to worry about that.


With Emil's comment (regarding  drmOpen* API) taken care of

Reviewed-by: Christian Gmeiner <christian.gmeiner at gmail.com>

greets
--
Christian Gmeiner, MSc

https://www.youtube.com/user/AloryOFFICIAL
https://soundcloud.com/christian-gmeiner