Source of intel-svm.c - linux-imx - PHYTEC BitBucket (Stash)

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int intel_svm_bind_mm(struct device *dev, int *pasid, int flags, struct svm_dev_ops *ops)
{
    struct intel_iommu *iommu = intel_svm_device_to_iommu(dev);
    struct intel_svm_dev *sdev;
    struct intel_svm *svm = NULL;
    struct mm_struct *mm = NULL;
    int pasid_max;
    int ret;
​
    if (!iommu)
    if (!iommu || dmar_disabled)
        return -EINVAL;
​
    if (dev_is_pci(dev)) {
        pasid_max = pci_max_pasids(to_pci_dev(dev));
        if (pasid_max < 0)
            return -EINVAL;
    } else
        pasid_max = 1 << 20;
​
    if (flags & SVM_FLAG_SUPERVISOR_MODE) {