regATC_L2_MISC_CG
def = data = RREG32_SOC15(MMHUB, 0, regATC_L2_MISC_CG);
WREG32_SOC15(MMHUB, 0, regATC_L2_MISC_CG, data);
def = data = RREG32_SOC15(MMHUB, 0, regATC_L2_MISC_CG);
WREG32_SOC15(MMHUB, 0, regATC_L2_MISC_CG, data);
data = RREG32_SOC15(MMHUB, 0, regATC_L2_MISC_CG);