diff options
Diffstat (limited to 'drivers/iommu/intel-svm.c')
| -rw-r--r-- | drivers/iommu/intel-svm.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c index 3a4b09ae8561..8f87304f915c 100644 --- a/drivers/iommu/intel-svm.c +++ b/drivers/iommu/intel-svm.c @@ -228,6 +228,7 @@ static LIST_HEAD(global_svm_list); 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 device_domain_info *info; struct intel_svm_dev *sdev; struct intel_svm *svm = NULL; struct mm_struct *mm = NULL; @@ -291,13 +292,29 @@ int intel_svm_bind_mm(struct device *dev, int *pasid, int flags, struct svm_dev_ } sdev->dev = dev; - ret = intel_iommu_enable_pasid(iommu, sdev); + ret = intel_iommu_enable_pasid(iommu, dev); if (ret || !pasid) { /* If they don't actually want to assign a PASID, this is * just an enabling check/preparation. */ kfree(sdev); goto out; } + + info = dev->archdata.iommu; + if (!info || !info->pasid_supported) { + kfree(sdev); + goto out; + } + + sdev->did = FLPT_DEFAULT_DID; + sdev->sid = PCI_DEVID(info->bus, info->devfn); + if (info->ats_enabled) { + sdev->dev_iotlb = 1; + sdev->qdep = info->ats_qdep; + if (sdev->qdep >= QI_DEV_EIOTLB_MAX_INVS) + sdev->qdep = 0; + } + /* Finish the setup now we know we're keeping it */ sdev->users = 1; sdev->ops = ops; |