Re: [Intel-gfx] [PATCH] Watermark level workaround for i830

2013-11-19 Thread Daniel Vetter
On Tue, Nov 19, 2013 at 10:55 AM, Thomas Richter wrote: > In the meantime, I also checked with video overlays, and the minimum value > of 6 is not yet quite optimal, higher values (lower watermarks) seem to do > even better. From the values I get, I also estimate a minimum latency of > about 1100

[Intel-gfx] [PATCH] Watermark level workaround for i830

2013-11-18 Thread Thomas Richter
Hi Daniel, hi intel experts, please find a patch attached concerning the watermark levels on the i830 chipsets. I did a couple of experiments this morning and found that the watermark on i830 may neither be too small (i.e. the FW_BLC register values may not be too high) as otherwise the FIFO