st/nine: Ignore nooverwrite for systemmem
authorAxel Davy <davyaxel0@gmail.com>
Fri, 12 Apr 2019 22:39:59 +0000 (00:39 +0200)
committerAxel Davy <davyaxel0@gmail.com>
Tue, 30 Apr 2019 17:18:50 +0000 (19:18 +0200)
commitf4ae483c44ffdc56f990f6ebff7b9b4dde2cd54f
treee59419aeb349eb2c00f0540307003ebc358fbd93
parentfd3a870401acd0fd3ff2369659a77e42aab81489
st/nine: Ignore nooverwrite for systemmem

Systemmem has a specific behaviour we don't
mimick exactly.
That makes Halo feel free to use nooverwrite
with it all the time, even when reading again
at the same location.
Ignore nooverwrite to have proper synchronization.

Fixes: https://github.com/iXit/Mesa-3D/issues/348
Signed-off-by: Axel Davy <davyaxel0@gmail.com>
src/gallium/state_trackers/nine/buffer9.c