Commits
Matt Roper committed bf22045250f
Revert "drm/i915: Add two-stage ILK-style watermark programming (v10)" This reverts commit 396e33ae204f52abebec9e578f44c749305500f4. This commit was triggering some FIFO underrun warnings on ILK-IVB platforms (but surprisingly not on HSW/BDW that share more or less the same codepaths). These underruns were caught by the continuous integration (CI) system and could be reproduced consistently when running the basic acceptance tests (BAT) on the affected platforms. Note that this revert will cause a visible regression for some end-users; the "flicker when mouse moves between monitors in X" issue that was reported before this patch was merged will now return. However regressions that are visible to CI have higher priority since they prevent proper testing of future patches on those platforms. Hopefully we'll be able to figure out the cause of the underruns quickly and remerge an improved version of this patch to fix the regression. Cc: Daniel Vetter <daniel@ffwll.ch> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93640 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1453232584-8543-1-git-send-email-matthew.d.roper@intel.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>