regVM_L2_CNTL4
WREG32_SOC15_RLC(GC, GET_INST(GC, i), regVM_L2_CNTL4, tmp);
WREG32_SOC15(MMHUB, 0, regVM_L2_CNTL4, tmp);
WREG32_SOC15(MMHUB, i, regVM_L2_CNTL4, tmp);