Another big set of prep work to get the watermarks ready for the atomic age. The main themes here are some new structures to allow us to eventually pre-compute the watermarks and trying to reduce the overhead of the watermark update itself. My plan has been to attempt to update the watermarks from the vblank irq handler, but I'm not 100% sure that I can do that. I have a big patch set at [1] that does it (and more), and for the most part it is working. But I am seeing an occasional underrun (very rarely though). I'm not sure that's caused by missing the dealine in the vblank handler or something else. In my big patch set, the next step is adding the vblank update mechanism, and after that convert ILK/SNB/IVB over to the HSW watermark code. As I'm not yet 100% convinced that the vblank thing will work out, I think I will reverse those steps, so that we can get the ILK+ stuff in while I keep looking into the underrun issue a bit more. The big patchset also has some other random bits and pieces (mainly sprite related), and I'll probably be sending some of that out as well. [1] git://gitorious.org/vsyrjala/linux.git watermarks_full _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
