Am 20.03.2015 14:13, schrieb Glenn Kennard:
Add SV_GEOMETRY_EMIT special variable type to track the
implicit dependencies between CUT/EMIT_VERTEX/MEM_RING
instructions so GCM/scheduler doesn't reorder them.
Mark emit instructions as unkillable so DCE doesn't eat them.
Signed-off-by: Glenn Kennard <glenn.kenn...@gmail.com>
---
The hangs with SB on geometry shaders were all due to the CUT/EMIT
instructions either being DCE:d or emitted out of order from the
memory ring writes, so the hardware stalled forever waiting for
completed primitives.
Tested only on a Turks so far, but should behave the same across
all R600 generations.
Hello Glenn,
what tests are preferred?
Starting with a Turks XT here, too and could do some tests on RV730
(AGP) then.
-Dieter
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