Chris Wilson aed242ff7e
drm/i915: Relax RPS contraints to allows setting minfreq on idle ...
When we idle, we set the GPU frequency to the hardware minimum (not user
minimum). We introduce a new variable to distinguish between the
different roles, and to allow easy tuning of the idle frequency without
impacting over aspects of RPS. Setting the minimum frequency should be a
safety blanket as the pcu on the GPU should be power gating itself
anyway. However, in order for us to do set the absolute minimum
frequency, we need to relax a few of our assertions that we do not
exceed the user limits.
v2: Add idle_freq
v3: Init idle_freq for vlv and add a bunch of WARNs
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk >
Cc: Deepak S <deepak.s@linux.intel.com >
Reviewed-by: Deepak S<deepak.s@linux.intel.com >
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch >
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aed242ff7e