Re: [PATCH] PCI: disable MSI on SiS 761

From: Bjorn Helgaas
Date: Thu Sep 24 2015 - 16:40:50 EST


On Fri, Sep 11, 2015 at 11:12:17PM +0200, Ondrej Zary wrote:
> 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@xxxxxxxxxxxxxxxxxxxx>

Applied to pci/misc for v4.4, thanks!

> ---
> drivers/pci/quirks.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index e9fd0e9..6caffc3 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -2204,6 +2204,7 @@ 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)
> --
> Ondrej Zary
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/