[Bug 97017] [SKL GT3e] ~10% performance drop in most benchmarks

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97017

--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Eero Tamminen from comment #5)
> Is there something in i915 rc6 handling that differs between SKL GT2 and
> GT3e?

Actually there is.

NEEDS_WaRsDisableCoarsePowerGating() is skl gt3/gt4.

Not sure how that relates to the patch, comment 6 shows that we are still
enabling RC6 pretty earlier, so it should not be a complete failure...

Tomi, could you also post the dmesg from
b7137e0cf1e55b5b0cb88fbd85425a1bc0d24c3a^ (the last good commit)?

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