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authorIlia Mirkin <[email protected]>2015-12-10 18:19:44 -0500
committerIlia Mirkin <[email protected]>2015-12-12 18:10:16 -0500
commit7752bbc44e78e982de3cd4c34862adc38a338234 (patch)
tree4f7f209919b20bd39b21b5676225f8f6ded788c0 /bin
parentd35695096de2358aef40452b5e3304a02534f7db (diff)
gk104/ir: simplify and fool-proof texbar algorithm
With the current algorithm, we only look at tex uses. However there's a write-after-write hazard where we might decide to, on some path, not use a texture's output at all, but instead to write a different value to that register. However without the barrier, the texture might complete later and overwrite that value. This fixes Unreal Elemental demo on GK110/GK208, flightgear on GK10x, and likely other random-looking failures. Signed-off-by: Ilia Mirkin <[email protected]> Cc: "11.1" <[email protected]>
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