mmXPB_PERF_KNOBS  340 drivers/gpu/drm/amd/include/asic_reg/athub/athub_1_0_offset.h #define mmXPB_PERF_KNOBS	0x00a6
mmXPB_PERF_KNOBS  369 drivers/gpu/drm/amd/include/asic_reg/athub/athub_2_0_0_offset.h #define mmXPB_PERF_KNOBS                                                                               0x00ae