usParamNegFlag   5402 drivers/gpu/drm/amd/include/atombios.h   USHORT usParamNegFlag;          //bit0 =1 :indicate ulRoBeta is Negative, bit1=1 indicate Kv_m  max is postive
usParamNegFlag   5477 drivers/gpu/drm/amd/include/atombios.h   USHORT usParamNegFlag;