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.
> */
> GEM_BUG_ON(!(ce->reg_state[SR] & CTX_SR_SAVE_INHIBIT));
In fact, don't bug out, just set it here. Then it won't break again when
icl enabling lands.
-Chris
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