Quoting Chris Wilson (2021-01-14 10:13:37)
> Quoting Chris Wilson (2021-01-14 09:26:39)
> > + rq = record_registers(A, a, result[0], result[1], false, &sema);
> > + if (IS_ERR(rq)) {
> > + err = PTR_ERR(rq);
> > + goto err_result1;
> > + }
> > +
> > + err = poison_registers(B, a, poison, false, &sema);
>
> Hmm. Will want to add a synchronisation pointer before poisoning the
> registers, we want to make sure context A is active at the time.
Already waits for the poison in record_registers, between the first and
second reads!
-Chris
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