On Mon, Apr 04, 2016 at 05:51:11PM +0100, Tvrtko Ursulin wrote: > From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > > On platforms with multiple forcewake domains it seems more efficient > to request all desired ones and then to wait for acks to avoid > needlessly serializing on each domain. Not convinced since we have more machines with one domain than two. What I did was to compact the domains array so that we only iterated over the known set - but that feels overkill when we only have two domains today. For the same reason (only one machine with two domains), I didn't think seperate functions to iterate over one domain and another to iterate over all was worth it. What you can do though is remove an excess posting read from fw_domains_put. Compared to the cost of a register access (the spinlock irq mostly) the iterator doesn't strike me as being that worthwhile an optimisation target. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
