Re: [Intel-gfx] [PATCH v2] drm/i915/skl: Skip remaining dividers when deviation is 0

2015-06-28 Thread shuang . he
Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang...@intel.com) Task id: 6627 -Summary- Platform Delta drm-intel-nightly Series Applied ILK

Re: [Intel-gfx] [PATCH v2] drm/i915/skl: Skip remaining dividers when deviation is 0

2015-06-26 Thread Daniel Vetter
On Fri, Jun 26, 2015 at 06:34:29PM +0100, Damien Lespiau wrote: > We can't improve a 0 deviation, so when we find such a divider, skip the > remaining ones they won't be better. > > This short-circuit the search for 34 of the 373 test frequencies in the > corresponding i-g-t test (tools/skl_comput

[Intel-gfx] [PATCH v2] drm/i915/skl: Skip remaining dividers when deviation is 0

2015-06-26 Thread Damien Lespiau
We can't improve a 0 deviation, so when we find such a divider, skip the remaining ones they won't be better. This short-circuit the search for 34 of the 373 test frequencies in the corresponding i-g-t test (tools/skl_compute_wrpll) v2: Place the short-circuiting code in skl_compute_wrpll() (Paul