mmVM_L2_CNTL2
tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL2);
WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL2, tmp);
WREG32(mmVM_L2_CNTL2,
WREG32(mmVM_L2_CNTL2, 0);
WREG32(mmVM_L2_CNTL2, tmp);
WREG32(mmVM_L2_CNTL2, 0);
tmp = RREG32(mmVM_L2_CNTL2);
WREG32(mmVM_L2_CNTL2, tmp);
WREG32(mmVM_L2_CNTL2, 0);
tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2);
WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);