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pci-v5.5-fixes-2
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commit
a572582b1a
@ -5074,18 +5074,25 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
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#ifdef CONFIG_PCI_ATS
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/*
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* Some devices have a broken ATS implementation causing IOMMU stalls.
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* Don't use ATS for those devices.
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* Some devices require additional driver setup to enable ATS. Don't use
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* ATS for those devices as ATS will be enabled before the driver has had a
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* chance to load and configure the device.
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*/
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static void quirk_no_ats(struct pci_dev *pdev)
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static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
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{
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pci_info(pdev, "disabling ATS (broken on this device)\n");
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if (pdev->device == 0x7340 && pdev->revision != 0xc5)
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return;
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pci_info(pdev, "disabling ATS\n");
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pdev->ats_cap = 0;
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}
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/* AMD Stoney platform GPU */
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_no_ats);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats);
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/* AMD Iceland dGPU */
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
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/* AMD Navi14 dGPU */
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats);
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#endif /* CONFIG_PCI_ATS */
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/* Freescale PCIe doesn't support MSI in RC mode */
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