From: Chris Wilson Date: Mon, 26 Aug 2013 19:58:12 +0000 (+0100) Subject: drm/i915: Use RCS flips on Ivybridge+ X-Git-Tag: v3.12-rc1~61^2~1^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ffe74d75502e3a9b0791240b5562bcbecc6ab8dc;p=pandora-kernel.git drm/i915: Use RCS flips on Ivybridge+ 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 Lightly-tested-by: Stephane Marchesin Cc: Stephane Marchesin Cc: Ben Widawsky Tested-by: Stéphane Marchesin Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed