Re: [Intel-gfx] [PATCH 00/14] drm/i915: Moar plane update optimizations

2017-03-23 Thread Ville Syrjälä
On Fri, Mar 17, 2017 at 11:17:54PM +0200, ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > The plane updates are still taking far too long, at least with > heavy kernel debug knobs turned on. Using kms_atomic_transitions > I'm currently seeing numbers as high as 170 usec on my VLV.

[Intel-gfx] [PATCH 00/14] drm/i915: Moar plane update optimizations

2017-03-17 Thread ville . syrjala
From: Ville Syrjälä The plane updates are still taking far too long, at least with heavy kernel debug knobs turned on. Using kms_atomic_transitions I'm currently seeing numbers as high as 170 usec on my VLV. To combat lockdep the most beneficial thing is taking the uncore.lock around the entire