Re: [PATCH] drm/i915/execlists: WaDisableCtxRestoreArbitration is only needed in gen8

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Quoting Michel Thierry (2017-10-05 19:19:27)
> WaDisableCtxRestoreArbitration was only applied for bdw and chv, but
> this changed after the code got moved to gen8_emit_bb_start (and, at
> least in my tree, there is no gen9_emit_bb_start).

But I need to make sure we enable arbitration at some point. :)
It may not need the w/a name, but I was making very sure we didn't start
a BB without ARB, or context-switch into the middle of a batch without
ARB. That was my thinking, that there was no harm in overkill if we set
it more often than strictly necessary.
-Chris
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