On Tue, Aug 20, 2013 at 10:34 AM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > RCS flips do work on Iybridge+ so long as we can unmask the messages > through DERRMR. However, there are quite a few workarounds mentioned > regarding unmasking more than one event or triggering more than one > message through DERRMR. Those workarounds in principle prevent us from > performing pipelined flips (and asynchronous flips across multiple > planes) and equally apply to the "known good" BCS ring. Given that it > already appears to work, and also appears to work with unmasking all 3 > planes at once (and queuing flips across multiple planes), be brave. > > Bugzlla: https://bugs.freedesktop.org/show_bug.cgi?id=67600 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Can you pls add some words with how this DERRMR write will interact with scanline waits from SNA? I think just a few words to explain how switching from scanline waits and blits to pageflips and back would be good (even though I don't really expect that to happen often, especially now that we have the buffer age extension and friends). -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
