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Commit 3dc007fe authored by Chris Wilson's avatar Chris Wilson
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drm/i915/gtt: Downgrade gen7 (ivb, byt, hsw) back to aliasing-ppgtt



With the upcoming change in timing (dramatically reducing the latency
between manipulating the ppGTT and execution), no amount of tweaking
could save Baytrail, it would always fail to invalidate its TLB. Ville
was right, Baytrail is beyond hope.

v2: Rollback on all gen7; same timing instability on TLB invalidation.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Acked-by: default avatarMatthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190830180000.24608-1-chris@chris-wilson.co.uk
parent 40e98130
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