RISCV_IOMMU_PC_TA_PSCID
FIELD_GET(RISCV_IOMMU_PC_TA_PSCID, pc->ta));
FIELD_GET(RISCV_IOMMU_PC_TA_PSCID, pc->ta));
WRITE_ONCE(dc->ta, ta & RISCV_IOMMU_PC_TA_PSCID);
ta = FIELD_PREP(RISCV_IOMMU_PC_TA_PSCID, domain->pscid) |