[PATCH 0/2] Let pci_fixup_final access iommu_fwnode

Zhangfei Gao zhangfei.gao at linaro.org
Tue May 12 04:08:29 UTC 2020


Some platform devices appear as PCI but are
actually on the AMBA bus, and they need fixup in
drivers/pci/quirks.c handling iommu_fwnode.
So calling pci_fixup_final after iommu_fwnode is allocated.

For example: 
Hisilicon platform device need fixup in 
drivers/pci/quirks.c

+static void quirk_huawei_pcie_sva(struct pci_dev *pdev)
+{
+	struct iommu_fwspec *fwspec;
+
+	pdev->eetlp_prefix_path = 1;
+	fwspec = dev_iommu_fwspec_get(&pdev->dev);
+	if (fwspec)
+		fwspec->can_stall = 1;
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa250, quirk_huawei_pcie_sva);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa251, quirk_huawei_pcie_sva);
 

Zhangfei Gao (2):
  iommu/of: Let pci_fixup_final access iommu_fwnode
  ACPI/IORT: Let pci_fixup_final access iommu_fwnode

 drivers/acpi/arm64/iort.c | 1 +
 drivers/iommu/of_iommu.c  | 1 +
 2 files changed, 2 insertions(+)

-- 
2.7.4



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