tree 427296db2846db1d53cfafa590d3dd94935c3027
parent fc2f07566a2cb198eb5902684163e7c4f5309619
author Rob Clark <robdclark@chromium.org> 1679323406 -0700
committer Rob Clark <robdclark@chromium.org> 1679787104 -0700

drm/msm: Decouple vma tracking from obj lock

We need to use the inuse count to track that a BO is pinned until
we have the hw_fence.  But we want to remove the obj lock from the
job_run() path as this could deadlock against reclaim/shrinker
(because it is blocking the hw_fence from eventually being signaled).
So split that tracking out into a per-vma lock with narrower scope.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/527839/
Link: https://lore.kernel.org/r/20230320144356.803762-5-robdclark@gmail.com