From: Zhangfei Gao <zhangfei.gao@linaro.org> driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I472UK?from=project-issue ---------------------------------------------------------------------- HiSilicon KunPeng920 and KunPeng930 have devices appear as PCI but are actually on the AMBA bus. These fake PCI devices have PASID capability though not supporting TLP. Add a quirk to set pasid_no_tlp for these devices. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com> Reviewed-by: Hao Fang <fanghao11@huawei.com> Reviewed-by: Mingqiang Ling <lingmingqiang@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- drivers/pci/quirks.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 16fb3d7714d5..b2e59f6657a9 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1825,6 +1825,20 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quir DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_HUAWEI, 0x1610, PCI_CLASS_BRIDGE_PCI, 8, quirk_pcie_mch); +static void quirk_huawei_pcie_sva(struct pci_dev *pdev) +{ + if (pdev->revision != 0x21 && pdev->revision != 0x30) + return; + + pdev->pasid_no_tlp = 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); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa255, quirk_huawei_pcie_sva); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa256, quirk_huawei_pcie_sva); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa258, quirk_huawei_pcie_sva); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_HUAWEI, 0xa259, quirk_huawei_pcie_sva); + /* * It's possible for the MSI to get corrupted if SHPC and ACPI are used * together on certain PXH-based systems. -- 2.20.1