usK8SyncStartDelay 3220 drivers/gpu/drm/amd/include/atombios.h   USHORT                          usK8SyncStartDelay;         //in 0.01 us unit
usK8SyncStartDelay 2767 drivers/gpu/drm/radeon/atombios.h   USHORT	                        usK8SyncStartDelay;         //in 0.01 us unit