Quoting Chris Wilson (2017-10-08 14:43:21)
> We have to manually retire the requests in order to unpin the contexts,
> and thereby make their space available in the GGTT. So call retire after
> we idle the GPU to account for the lazy pinning.
Bah, no we moved the retire to i915_gem_wait_for_idle.
commit 72022a705e1da854653e56b67bef57b72f1392eb
Author: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Date: Thu Mar 30 15:50:38 2017 +0100
drm/i915: Move retire-requests into i915_gem_wait_for_idle()
As we now distinguish everywhere that can call
i915_gem_retire_requests() following a successful wait_for_idle, we can
remove the duplication by moving that call into i915_gem_wait_for_idle()
itself.
Back to the drawing board why we weren't apparently able to clear the
pinned contexts from the GGTT.
-Chris
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