[PATCH] Automatically determine appropriate pipe from plane info

Jesse Barnes jbarnes at virtuousgeek.org
Tue Sep 11 15:23:50 PDT 2007

Rather than keeping a copy of the plane->pipe mapping code in the SAREA, 
just figure out what the real mapping is from the DSP(A|B)CNTR register 
at runtime.  This should be fairly safe since the DRM doesn't actually 
modify the pipe->plane mappings, though there is the possibility for 
app confusion if the DDX changes the mappings between a vblank swap 
submission and completion.
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