+/*
+ * This function called by IOMMU driver on PPR failure
+ */
+static int iommu_invalid_ppr_cb(struct pci_dev *pdev, int pasid,
+ unsigned long address, u16 flags)
+{
+ struct kfd_dev *dev;
+
+ dev_warn(kfd_device,
+ "Invalid PPR device %x:%x.%x pasid %d address 0x%lX flags 0x%X",
+ PCI_BUS_NUM(pdev->devfn),
+ PCI_SLOT(pdev->devfn),
+ PCI_FUNC(pdev->devfn),
+ pasid,
+ address,
+ flags);
+
+ dev = kfd_device_by_pci_dev(pdev);
+ BUG_ON(dev == NULL);
+
+ kfd_signal_iommu_event(dev, pasid, address,
+ flags & PPR_FAULT_WRITE, flags & PPR_FAULT_EXEC);
+
+ return AMD_IOMMU_INV_PRI_RSP_INVALID;
+}
+