mmTPC2_CFG_TPC_STALL
WREG32(mmTPC2_CFG_TPC_STALL, 1 << TPC0_CFG_TPC_STALL_V_SHIFT);
mask |= 1U << ((mmTPC2_CFG_TPC_STALL & 0x7F) >> 2);
WREG32(mmTPC2_CFG_TPC_STALL, 1 << TPC2_CFG_TPC_STALL_V_SHIFT);
mask |= 1 << ((mmTPC2_CFG_TPC_STALL & 0x7F) >> 2);