[Intel-gfx] [PATCH 4/4] drm/i915/gen12: Invalidate aux table entries forcibly

Mika Kuoppala mika.kuoppala at linux.intel.com
Wed May 6 15:20:22 UTC 2020

Chris Wilson <chris at chris-wilson.co.uk> writes:

> Quoting Mika Kuoppala (2020-05-06 15:47:34)
>> Aux table invalidation can fail on update. So
>> next access may cause memory access to be into stale entry.
>> Proposed workaround is to invalidate entries between
>> all batchbuffers.
> This sounds like it should have a sunset clause. Do we anticipate being
> able to drop this w/a in future?

Rafael kindly pointed out that Mesa already does this:
So I would say we can drop this patch.

But it makes me wonder that is that LRI dropped for not being whitelisted.


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