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PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
commitd0c9606b31
upstream. Add Device IDs to the Intel GPU "spurious interrupt" quirk table. For these devices, unplugging the VGA cable and plugging it in again causes spurious interrupts from the IGD. Linux eventually disables the interrupt, but of course that disables any other devices sharing the interrupt. The theory is that this is a VGA BIOS defect: it should have disabled the IGD interrupt but failed to do so. Seef67fd55fa9
("PCI: Add quirk for still enabled interrupts on Intel Sandy Bridge GPUs") and7c82126a94
("PCI: Add new ID for Intel GPU "spurious interrupt" quirk") for some history. [bhelgaas: See link below for discussion about how to fix this more generically instead of adding device IDs for every new Intel GPU. I hope this is the last patch to add device IDs.] Link: https://lore.kernel.org/linux-pci/1537974841-29928-1-git-send-email-bmeng.cn@gmail.com Signed-off-by: Bin Meng <bmeng.cn@gmail.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org # v3.4+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3124,7 +3124,11 @@ static void disable_igfx_irq(struct pci_dev *dev)
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pci_iounmap(dev, regs);
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}
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0042, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0046, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x004a, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0106, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
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DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq);
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