diff options
| -rw-r--r-- | drivers/pci/quirks.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6967c6b4cf6b..15ee4e9af633 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4681,3 +4681,18 @@ static void quirk_intel_no_flr(struct pci_dev *dev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_intel_no_flr); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_intel_no_flr); + +#ifdef CONFIG_PCI_ATS +/* + * Some devices have a broken ATS implementation causing IOMMU stalls. + * Don't use ATS for those devices. + */ +static void quirk_no_ats(struct pci_dev *pdev) +{ + dev_info(&pdev->dev, "disabling ATS (broken on this device)\n"); + pdev->ats_cap = 0; +} + +/* AMD Stoney platform GPU */ +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats); +#endif /* CONFIG_PCI_ATS */ |