Re: [Intel-gfx] [PATCH v4 10/12] drm/i915: Program PFI credits for VLV

2015-03-10 Thread Daniel Vetter
On Tue, Mar 10, 2015 at 03:35:19PM +0530, Purushothaman, Vijay A wrote: > On 3/6/2015 12:49 AM, ville.syrj...@linux.intel.com wrote: > >From: Vidya Srinivas > > > >PFI credit programming is required when CD clock (related to data flow from > >display pipeline to end display) is greater than CZ clo

Re: [Intel-gfx] [PATCH v4 10/12] drm/i915: Program PFI credits for VLV

2015-03-10 Thread Purushothaman, Vijay A
On 3/6/2015 12:49 AM, ville.syrj...@linux.intel.com wrote: From: Vidya Srinivas PFI credit programming is required when CD clock (related to data flow from display pipeline to end display) is greater than CZ clock (related to data flow from memory to display plane). This programming should be d

[Intel-gfx] [PATCH v4 10/12] drm/i915: Program PFI credits for VLV

2015-03-05 Thread ville . syrjala
From: Vidya Srinivas PFI credit programming is required when CD clock (related to data flow from display pipeline to end display) is greater than CZ clock (related to data flow from memory to display plane). This programming should be done when all planes are OFF to avoid intermittent hangs while