https://bugs.freedesktop.org/show_bug.cgi?id=34486
--- Comment #2 from Andy Furniss <li...@andyfurniss.entadsl.com> 2011-02-21
03:44:52 PST ---
(In reply to comment #1)
> xterm is doing something which requires software fallbacks which are slower
> with tiling enabled since the driver has to de-tile the pixmap so the CPU can
> access it.
OK - I retested resetting ddx properly :-) using git log to pick rather than
cgit and the commit this starts with is -
commit fccdca8db34010f566bd068c74cdef0f4a8cb7f5
Author: Alex Deucher <alexdeuc...@gmail.com>
Date: Wed Nov 17 17:37:25 2010 -0500
radeon/kms: allow tiled front buffer on 6xx/7xx
Use UTS/DFS to tile/untile as appropriate for sw access.
Also enables pageflipping with tiling enabled.
If I reset to the commit before this I get the same perf with or without
tiling, so whatever the s/w fallback did then was a lot faster.
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