Quoting Chris Wilson (2018-02-26 14:28:36)
> Quoting Michał Winiarski (2018-02-26 13:59:59)
> > + for_each_engine(engine, dev_priv, id) {
> struct intel_engine *ce = &client->owner->engine[id];
>
> /* The preempt context must be pinned on each engine);
> GEM_BUG_ON(!ce->pin_count);
>
> /*
> * We rely on the context image *not* being saved after
> * preemption. This ensures that the RING_HEAD / RING_TAIL
> * do not advance and they remain pointing at this command
> * sequence forever.
> */
Hmm, this is not true. See intel_lr_context_resume().
Does this patch justify a test case for gem_exec_schedule+suspend
specifically? Or do we just repeat every test after a S&R cycle? I think
we could do with the latter!
-Chris
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