mmDAGB1_CNTL_MISC2
def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2);
WREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2, data2);
int dist = mmDAGB1_CNTL_MISC2 - mmDAGB0_CNTL_MISC2;