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| author | Forest Crossman <cyrozap@gmail.com> | 2020-07-17 06:27:34 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-29 07:42:56 +0200 |
| commit | 70db3c5ec288d26ffc683911571cd7dac1cd50d8 (patch) | |
| tree | 14356f3b853d83a1761b5422b8511a3331278b20 | |
| parent | ec9b262630327e0452de4e27f234f2b6a11e844b (diff) | |
| download | linux-stable-70db3c5ec288d26ffc683911571cd7dac1cd50d8.tar.gz linux-stable-70db3c5ec288d26ffc683911571cd7dac1cd50d8.tar.bz2 linux-stable-70db3c5ec288d26ffc683911571cd7dac1cd50d8.zip | |
usb: xhci: Fix ASM2142/ASM3142 DMA addressing
commit dbb0897e805f2ab1b8bc358f6c3d878a376b8897 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>
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index c01a0d1e8b5c..d4e29039305b 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -235,6 +235,9 @@ 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) |