[Intel-gfx] [PATCH 2/2] drm/i915: add debugfs interface to control rc6 and rps

Chris Wilson chris at chris-wilson.co.uk
Tue Nov 29 14:05:03 CET 2011


On Tue, 29 Nov 2011 10:55:05 -0200, Eugeni Dodonov <eugeni.dodonov at intel.com> wrote:
> This allows to enable/disable rps and rc6 from userspace. This is
> necessary for to have predictable results from hardware counters, and also
> to provide a finer granularity over power control from userspace.

Reading registers and counters is handled with i915_forcewake_user. So
the question is what benefit does htis give over module reload. It looks
far riskier...
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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