regMC_VM_FB_LOCATION_BASE
WREG32_SOC15(GC, GET_INST(GC, i), regMC_VM_FB_LOCATION_BASE, 0x00FFFFFF);
WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE, 0x00FFFFFF);
u64 base = RREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE);
WREG32_SOC15(MMHUB, i, regMC_VM_FB_LOCATION_BASE,
u64 base = RREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE);