RISCV_IOMMU_CMD1_IOTINVAL_ADDR
FIELD_PREP(RISCV_IOMMU_CMD1_IOTINVAL_ADDR, PHYS_PFN(addr));
cmd->dword1 = FIELD_PREP(RISCV_IOMMU_CMD1_IOTINVAL_ADDR, pfn) |