060e645ac0
He Shuang reported an OGLC performance regression introduced in the patch "enable memory self refresh on 9xx", In that patch, SR on 945 is disabled everytime when calling intel_mark_busy(), while too much of such operation will impact performance. Actually disable SR is necessary only when GPU and Crtc changing from idle to busy. This patch make such optimization. It fixes upstream bug http://bugs.freedesktop.org/show_bug.cgi?id=26422 Signed-off-by: Li Peng <peng.li@intel.com> Signed-off-by: Eric Anholt <eric@anholt.net> |
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