[UMR] Add GPU_POWER (v3) + refactored cleanup

[Kai Wasserbäch]

Hey Tom,
Tom St Denis wrote on 11.02.2017 20:05:
> On 02/11/2017 01:57 PM, Kai Wasserbäch wrote:
>> Tom St Denis wrote on 11.02.2017 18:52:
>>> I split out the deletion of the unused bits in --top.
>>
>> thank you so much for bearing with me (and Edward, though I can't speak for him,
>> obviously)! You can still have my R-b. ;-)
>>
>> Cheers,
>> Kai
>>
> 
> No worries.  It's no secret I'm no fan of NFC re-submits but hard to get upset
> in the face of genuinely good feedback.  And it is a community project in the
> long run so it's not like community pushback/feedback is not welcomed (my
> rumblings notwithstanding).

I'm not sure what AMD's internal policy might be on this, but NFC re-submits are
usually covered by the "with this/these fixed, you can have my R-b". Which is
the reason I had that kind of language in there. I didn't expect a resend to the
list, to be honest. (And I would guess the same applied to Edward's R-b.)

> Thanks to you and Edward for the feedback.
> 
> I've pushed them out.  You'll need a staging kernel to use GPU_POWER (with my
> and Eric's patches) to see any of this on a VI dGPU.
> 
> It's kinda interesting to see the power usage graphs (using umr's --top 'logger'
> mode) comparing Polaris10 and fiji while running say unigine-heaven.  I think
> the sensors will help debug/optimize power usage going forward.

Oh, should there have been a DRM version check in there then? Like Mesa guards
some features?

In any case I will have to wait for the Vega-upgrade I'm planning for this year
to actually test these features out.

Cheers,
Kai

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