Re: [PATCH 01/26] drm/i915: Keep engine alive as we retire the context

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Quoting Mika Kuoppala (2019-06-18 14:45:45)
> Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> > @@ -328,6 +345,7 @@ void i915_active_acquire_barrier(struct i915_active *ref)
> >  
> >               llist_add((struct llist_node *)&node->base.link,
> >                         &engine->barrier_tasks);
> > +             intel_engine_pm_put(engine);
> 
> But you said that you keep the wakeref until unpin?

intel_context_unpin ->
  intel_context_active_release ->
    i915_active_acquire_barrier
-Chris
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