On Tue, Mar 31, 2015 at 07:13:40PM +0100, Tomas Elf wrote: > On 19/03/2015 12:31, John.C.Harrison@xxxxxxxxx wrote: > >From: John Harrison <John.C.Harrison@xxxxxxxxx> > > > >When the ring buffer is full, the driver finds an outstanding request that will > >free up sufficient space for the current operation and waits for it to complete. > >If no such request can be found, there is a fall back path of just polling until > >sufficient space is available. > > > >This path should not be required any more. It is a hangover from the bad days of > >OLR such that it was possible for the ring to be completely filled without ever > >having submitted a request. No. This is wrong. It is from DRI1. We never could have touched the ring without an OLR. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
