[Intel-gfx] Tracing PM-triggered GPU frequency changes from user space

[Heinrich Fink]

On Tue, 2017-11-14 at 12:23 +0000, Chris Wilson wrote:
> What is a PM-triggered change of gpu freq? Do you mean when the hw
> itself throttles depending on thermal load.

yes, that's what I meant. Apologies for not being clear about this.

> Then no. Best you can do is
> use the i915 pmu interface to watch real vs requested.

Are you referring to the patch series "i915 PMU and engine busy stats"
[0]?

Thanks,

Heinrich

[0] https://patchwork.freedesktop.org/series/27488/