On Mon, Jun 13, 2016 at 11:33:50AM +0200, Maarten Lankhorst wrote: > Op 10-06-16 om 00:14 schreef Matt Roper: > > It's possible to have a non-zero plane mask and still wind up with a > > total data rate of zero. There are two cases where this can happen: > > > > * planes are active (from the KMS point of view), but are > > all fully clipped (positioned offscreen) > > * the only active plane on a CRTC is the cursor (which is handled > > independently and not counted into the general data rate computations > > > > These are both valid display setups (although unusual), so we need to > > drop the WARN(). > Is there a testcase that triggers this warn? Something for > kms_universal_planes perhaps? I do have the start of a new IGT testcase that generates hundreds of random display configurations (for the purposes of searching for watermark corner cases); that test triggers this WARN(), but I haven't posted it yet. But having extra subtests in the universal plane test sounds good too; thanks! Matt > > Reviewed-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> > Testcase: kms_universal_planes.cursor-only-pipe-* (will reply here as a patch) -- Matt Roper Graphics Software Engineer IoTG Platform Enabling & Development Intel Corporation (916) 356-2795 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
