On Fri, Sep 05, 2014 at 02:13:16PM +0100, Michel Thierry wrote: > Use full PPGTT as the default option in gen7. > Note that aliasing PPGTT is the default option for gen8 (see HAS_PPGTT). > > This may well come back to bite me later. Indeed. So something I spotted was that bspec mentions that the per-ring PDE registers (RING_PP_DIR_DCLV and RING_PP_DIR_BASE) are stored in the logical context and so the registers are restored along with the context. If this is correct what happens when we switch logical contexts on RCS whilst we have active work on BCS etc? Does this mean that we have to serialise context switches across rings, or is my reading of the bspec false? -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
