Commit dbb0897e authored by Forest Crossman's avatar Forest Crossman Committed by Greg Kroah-Hartman

usb: xhci: Fix ASM2142/ASM3142 DMA addressing

The ASM2142/ASM3142 (same PCI IDs) does not support full 64-bit DMA
addresses, which can cause silent memory corruption or IOMMU errors on
platforms that use the upper bits. Add the XHCI_NO_64BIT_SUPPORT quirk
to fix this issue.
Signed-off-by: default avatarForest Crossman <cyrozap@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200717112734.328432-1-cyrozap@gmail.comSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5ce1a24d
...@@ -265,6 +265,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) ...@@ -265,6 +265,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == 0x1142) pdev->device == 0x1142)
xhci->quirks |= XHCI_TRUST_TX_LENGTH; xhci->quirks |= XHCI_TRUST_TX_LENGTH;
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == 0x2142)
xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)
......
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