Re: Vivante graphics driver


Andy Pont <andy.pont@...>
 

Otavio wrote…

We use the kernel module as a way to easy the upgrade of GPU driver
releases. If using the built-in the Linux kernel version needs to
match the GPU driver release while if using the external kernel
module, this is not a requirement.

Another reason is that the external kernel module bring fixes we do as
community.
OK, so I think I will disable the built in version and use the external kernel module.

Secondly, in the tmp/work/…/imx-gpu-viv directory there is a file called
imx-gpu-viv-6.2.4.p4.0-aarch32.bin and likewise in
tmp/work/…/imx-gpu-g2d there is a imx-gpu-g2d-6.2.4.p4.0-arm.bin. I
presume that these are some kind of firmware file but as far as I can
see they aren’t making it into the file system on the target. Do I need
to do something with them?
The version used depends on the target you are building for.
I am building for a Boundary Devices Nitrogen 6 Lite board (i.MX6 Solo) using Yocto and the linux-boundary-4.14 kernel recipe.

We seem to be having really poor performance with canvas events in our HTML5/CSS front end and some of the benchmarks[1] we have run only seem to make 10fps.

-Andy

1 - https://themaninblue.com/experiment/AnimationBenchmark/canvas/

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