Quoting Chris Wilson (2019-08-13 23:09:05)
> We use the request pointer inside the i915_active_node as the indicator
> of the barrier's status; we mark it as used during
> i915_request_add_active_barriers(), and search for an available barrier
> in reuse_idle_barrier(). That check must be carefully
We use the request pointer inside the i915_active_node as the indicator
of the barrier's status; we mark it as used during
i915_request_add_active_barriers(), and search for an available barrier
in reuse_idle_barrier(). That check must be carefully serialised to
ensure we do use an engine for the b
