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i965: Emit CS stall before MEDIA_VFE_STATE.
authorKenneth Graunke <kenneth@whitecape.org>
Tue, 31 Oct 2017 16:57:54 +0000 (09:57 -0700)
committerMatt Turner <mattst88@gmail.com>
Mon, 4 Dec 2017 18:02:46 +0000 (10:02 -0800)
This fixes hangs on GFXBench 5's Aztec Ruins benchmark.

Unfortunately, it regresses OglCSCloth performance by about 10%. There
are some ideas for fixing that.

The Vulkan driver already emits this stall.

Reviewed-by: Matt Turner <mattst88@gmail.com>

No differences found