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drm/i915: Keep min freq above floor on HSW/BDW
authorTom O'Rourke <Tom.O'Rourke@intel.com>
Wed, 19 Nov 2014 22:21:53 +0000 (14:21 -0800)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 20 Nov 2014 12:03:32 +0000 (13:03 +0100)
commitc8b7010f1a7a6e557f7077450b4fbbc42d984a42
treeabc0f46775a226dcea7d63e747cd727860450220tree | snapshot
parenta2cf3f826977b2775f77f62d35b690156dad8871commit | diff
drm/i915: Keep min freq above floor on HSW/BDW

Set the min_freq_softlimit to max(RPe, 450MHz).

Setting a floor can ensure a minimum experience
level.  The 450MHz value came from a power and
performance study of various types of workloads
(3D, Media, GPGPU, idle, etc).

v2: rebased

Signed-off-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c diff | blob | history
Linux Kernel Source Tree.