[Intel-gfx] [PATCH 16/16] drm/i915: Allow RPS waitboosting to use max GPU frequency

Chris Wilson chris at chris-wilson.co.uk
Mon May 4 07:58:20 PDT 2015


On Mon, May 04, 2015 at 04:51:24PM +0200, Daniel Vetter wrote:
> On Mon, Apr 27, 2015 at 01:41:27PM +0100, Chris Wilson wrote:
> > Ignore the restriction imposed by the user for when the GPU is stalling
> > the clients and dropping frames. We will return back to the user limits
> > immediately once the stall is over.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> 
> Unsure about this one since I don't know who's all using the sysfs
> interface. Probably needs acks from people who actually do use it that we
> don't accidentally break their setup - which could happen right at the
> border where we might miss an occasional frame every few seconds or so.

Don't mind, this was more of a thought experiment (principally to
circumvent the IPS limiting in the previous patch for ILK). I was
tempted to introduce a boost frequency for separate control.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre


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