redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

usb: xhci: Fix ASM2142/ASM3142 DMA addressing 

commit dbb0897e80 upstream.

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: Forest Crossman <cyrozap@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200717112734.328432-1-cyrozap@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Forest Crossman 2020-07-17 06:27:34 -05:00 committed by Greg Kroah-Hartman
parent 1d91547f2f
commit 86894c3797
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/host/xhci-pci.c
View File

@ -250,6 +250,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == 0x1142)
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 &&
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI)