Vega 10 & Newer Getting More Fine-Grained PowerPlay Controls On Linux

[phoronix]

Phoronix: Vega 10 & Newer Getting More Fine-Grained PowerPlay Controls On Linux

With the upcoming Linux 5.1 kernel cycle, discrete Radeon graphics cards based on Vega 10 and newer will have fine-grained controls over what PowerPlay power management features are enabled and the ability to toggle them at run-time...

http://www.phoronix.com/scan.php?page=news_item&px=Vega-10-More-PowerPlay-Controls

[FireBurn]

It probably should be a bit more clearer that the SI DPM code being dropped has already been replaced by PowerPlay code, they're just dropping the old implementation

[ResponseWriter]

It probably should be a bit more clearer that the SI DPM code being dropped has already been replaced by PowerPlay code, they're just dropping the old implementation

I'd certainly feel more comfortable with that if I knew it worked. I'm still on 4.18 as it still allows me to boot and suspend/resume reliably. This is the first hint I've had that powerplay is the problem as it was enabled by default for 4.19.

Various possibly related bug reports include:

https://bugs.freedesktop.org/show_bug.cgi?id=108781

https://bugs.freedesktop.org/show_bug.cgi?id=108778

https://bugs.freedesktop.org/show_bug.cgi?id=108704

[faph]

Nice!

I would also be interested in some of these features for the previous high-end cards (GCN 3rd, Fury, Nano). Any chance for this?

[agd5f]

Nice!

I would also be interested in some of these features for the previous high-end cards (GCN 3rd, Fury, Nano). Any chance for this?

Not applicable. Older asics don't have those clock domains.

[Guest]

Phew, for a few seconds there I thought AMD was dropping power management support altogether for Sea Islands.