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PCI: Disable MSI on SiS 761

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MSI is broken on SiS 761 chipset at least on PC Chips A31G board.  No
interrupts are delivered once MSI is enabled for a device.  This causes
hang on X11 start with a nVidia card installed (with nouveau driver).

Disable MSI completely for this chipset.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
This commit is contained in:
Ondrej Zary 2015-09-24 17:02:07 -05:00 • committed by Bjorn Helgaas
commit 10b4ad1a53
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/quirks.c
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@ -2230,6 +2230,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disab
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, 0x0761, quirk_disable_all_msi);
/* Disable MSI on chipsets that are known to not support it */
static void quirk_disable_msi(struct pci_dev *dev)