ARM_SMMU_FEAT_VMID16
if (smmu->features & ARM_SMMU_FEAT_VMID16)
smmu->features |= ARM_SMMU_FEAT_VMID16;
if (smmu->features & ARM_SMMU_FEAT_VMID16)
} else if (!(smmu->features & ARM_SMMU_FEAT_VMID16)) {