> <3> [198.221812] [drm:wa_verify [i915]] *ERROR* engine workaround lost > on application! (reg[b004]=0x0, relevant bits were 0x0 vs expected 0x80) <3> > [198.222751] [drm:wa_verify [i915]] *ERROR* engine workaround lost on > application! (reg[b118]=0x0, relevant bits were 0x0 vs expected 0x200000) > <3> [198.223076] [drm:wa_verify [i915]] *ERROR* engine workaround lost > on application! (reg[b11c]=0x0, relevant bits were 0x0 vs expected 0x4) > > ? > > CI does not think they are old warnings and registers are the MCR affected > range. So more digging would be needed to be sure. You are saying those > happen in our CI without the patch? Hi Tvrtko, This patch only programmed 0xfdc register in reg[fdc]=0x12000000, no touch reg[b004]=0x0 & reg[b118]=0x0 & reg[b11c]=0x0, so I don't think this error is caused by this change. This error might be due to wa_write_masked_or() Meanwhile, as you can see this 2 kbl devices has different CI result. 1. fi-kbl-7500u - no any error log - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19752/fi-kbl-7500u/igt@gem_exec_suspend@xxxxxxxxxxxxx 2. fi-kbl-7567u- has register read/write error log: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_19752/fi-kbl-7567u/igt@gem_exec_suspend@xxxxxxxxxxxxx Cooper > > Then with regards to the reported perf drop - something to check would be if > the CML system you tested on has the same slice/subslice config as the one > from which the original report originated. Might be hard if the test farm has > been re-configured. But essentially running the benchmark on a few Gen9 > machine with fused ss would be needed I think. > > And finally I couldn't find the WA entry in bspec, but maybe I just don't know > where to look. Someone better versed to finding WA. Maybe Matt you would > have time for a quick check if > WaProgramMgsrForCorrectSliceSpecificMmioReads is documented as > applicable to Gen9? > > Regards, > > Tvrtko _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
