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PCI: Add bridge DMA alias quirk for Intel 82801 bridge
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This bridge sometimes shows up as a root complex device and sometimes as a
discrete PCIe-to-PCI bridge.  Testing indicates that in the latter case, we
need to enable the PCIe bridge DMA alias quirk.

Reported-by: Milos Kaurin <milos.kaurin@gmail.com>
Tested-by: Milos Kaurin <milos.kaurin@gmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Alex Williamson authored and Bjorn Helgaas committed Jul 5, 2014
1 parent 7171511 commit 8ab4abb
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions drivers/pci/quirks.c
Original file line number Diff line number Diff line change
@@ -3405,6 +3405,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080,
DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias);
/* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */
DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias);
/* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */
DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias);

static struct pci_dev *pci_func_0_dma_source(struct pci_dev *dev)
{

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