On Fri, Jul 05, 2013 at 04:48:26PM +0300, ville.syrjala at linux.intel.com wrote: > From: Ville Syrj?l? <ville.syrjala at linux.intel.com> > > WaMiSetContext_Hang tells us that a MI_NOOP must follow MI_SET_CONTEXT. > > The other thing WaMiSetContext_Hang seems to say is that URB_FENCE isn't > allowed to straddle two cachelines. But we don't issue those from the > kernel so we don't care. URB_FENCE: Could be a cut'n'paste error from an earlier gen4 erratum? I don't recall that being documented after the erratum was fixed in later gen. -Chris -- Chris Wilson, Intel Open Source Technology Centre