Quoting Ville Syrjälä (2017-09-05 20:01:03) > On Tue, Sep 05, 2017 at 02:47:35PM +0100, Chris Wilson wrote: > > The original gen4 has an issue where writes (both render and blt) into > > snoopable pages are lost. > > BTW is this documented somewhere, or just folk lore? I only found bspec > notes that snooped->snooped and tiled+snooped isn't allowed. But I > guess this is something more generic? Just experience indeed. Never stumbled across anything to actually explain it, especially why it is limited to just a couple of machines. You would have expected it to have at least made the cspec errata list, if it was a real issue! But having stumbled across the same issue again with mesa, I don't think it is just the way I implemented the blits. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
