iMX8MP - Vivante GPU and MSAA performance

vix · ‎02-26-2025

I've just built over the BSP i.MX, Linux, LF6.6.52_2.2.0 and in Chromium 117.0.5938.132 under chrome://gpu I see the following entry:

Problems Detected

Applied Workarounds: msaa_is_slow

What is the reason of this problem?

Is there some issue in the vivante drivers on iMX8MP?

Is this a hardware limit? But in this case I would not expect to see this under "Problems Detected" section.

Thanks

Bio_TICFSL · ‎02-26-2025

Hello,

What is the reason of this problem?

... the reason is the vivante driver if 64 bits and chrome does not support this 64 bits in rasterization

Is there some issue in the vivante drivers on iMX8MP?

--- No, that is exclusively for Chrome

Is this a hardware limit? But in this case I would not expect to see this under "Problems Detected" section.

--- No.

regards

vix · ‎02-26-2025

... the reason is the vivante driver if 64 bits and chrome does not support this 64 bits in rasterization

Do you know if this is a topic under improvement in chrome/chromium?

Should I report this to chromium developers?

Is there an issue opened there?

Bio_TICFSL · ‎02-27-2025

Hello,

Verisilicon is working on that.

Regards

vix · ‎03-05-2025

do you mean Verisilicon has been working on a chromium patch?

Can you post here when the pach is available?

Bio_TICFSL · ‎03-05-2025

Hello,

Sorry, So far there is no patch from NXP.

Regards

vix · ‎03-06-2025

I don't understand.

I mean: when (in the future) the patch from Verisilicon will be available, can you write here?

Bio_TICFSL · ‎03-06-2025

Hello,

I don;t know you can ask them.

Regards