linux-kernel - [PATCH] PCI: Add bridge DMA alias quirk for Intel 82801

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Message-ID: <20140623223530.13445.94886.stgit@gimli.home>
Date:	Mon, 23 Jun 2014 16:36:25 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	linux-pci@...r.kernel.org
Cc:	bhelgaas@...gle.com, linux-kernel@...r.kernel.org,
	Alex Williamson <alex.williamson@...hat.com>
Subject: [PATCH] PCI: Add bridge DMA alias quirk for Intel 82801

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.

Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
Reported-by: Milos Kaurin <milos.kaurin@...il.com>
Tested-by: Milos Kaurin <milos.kaurin@...il.com>
---

 drivers/pci/quirks.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 78a7df6..460c354 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -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);
 
 /*
  * AMD has indicated that the devices below do not support peer-to-peer

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