Re: drm/amd/display: disable display DCC with retiling due to worse power consumption

Joshua Ashton joshua at froggi.es
Fri Apr 28 16:11:37 UTC 2023


I really don't think the kernel isn't the right place to do this.
Is there any reason to not just disable it from the Mesa side?

We can already disable displayable DCC there, so I don't see why you are even touching the kernel.
It makes it infinitely harder for anyone to evaluate perf and power tradeoffs if you disable it at this level.

The whole power vs perf trade is also not a big deal on dGPUs compared to APUs. Probably needs a better heuristic either way to avoid regressing perf.

- Joshie 🐸✨

On 28 April 2023 10:47:17 BST, "Marek Olšák" <maraeo at gmail.com> wrote:
>Hi,
>
>It's attached for review.
>
>Thanks,
>Marek
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