Re: [PATCH] PCI: Add new PCI id for Intel GPU interrupt quirk

[Bjorn Helgaas <bhelgaas@google.com>]

[+cc Daniel, Jani, intel-gfx, dri-devel, -cc stable]

On Mon, Apr 07, 2014 at 03:10:32PM +0200, Thomas Jarosch wrote:
> After a CPU upgrade while keeping the same mainboard,
> we faced "spurious interrupt" problems again.
> 
> It turned out that the new CPU also featured a
> new GPU with a different PCI id.
> 
> -> Add this PCI id to the quirk table. Probably all other
> Intel GPU PCI ids are affected, too, but I don't want
> to add them without a test system.

Daniel, Jani, et al, do we need a better solution to this?  Is there
a more general way to solve this than by tripping over affected machines
one-by-one?  Could this be done in the driver rather than in a quirk?

> Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
> Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
> ---
>  drivers/pci/quirks.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index e729206..0feb4a3 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -2954,6 +2954,7 @@ static void disable_igfx_irq(struct pci_dev *dev)
>  }
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
>  
>  /*
>   * PCI devices which are on Intel chips can skip the 10ms delay
> -- 
> 1.8.1.4
> 
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