On Mon, Jun 27, 2016 at 11:32:10AM +0100, Tvrtko Ursulin wrote: > > On 25/06/16 11:12, Chris Wilson wrote: > >When waiting for an interrupt (waiting for the GPU to complete some > >work), we know we are the single waiter for the GPU. We also know when > > You mean we know we were the first waiter, if we have been woken up? > Or perhaps the single waiter for this request? (more or less, maybe > close enough) Or also s/", we know we are/, and we know we are" ? Single waiter for the engine. s/and//; it follows from and is not conditional. To be here we know we are the only piece of code performing this check. There may be threads entering i915_wait_request that also get to spin before adding themselves to the waitqueue, but of all waiters, we are the only one allowed to spin on this engine. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
