From 8b0042e32aa6c02116e6892334ecf4c93dac54b6 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Wed, 26 Sep 2018 08:14:01 -0700 Subject: [PATCH] PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk commit d0c9606b31a21028fb5b753c8ad79626292accfd 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. See f67fd55fa96f ("PCI: Add quirk for still enabled interrupts on Intel Sandy Bridge GPUs") and 7c82126a94e6 ("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 [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas Signed-off-by: Ben Hutchings --- drivers/pci/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 35a6fc073730..f5d1f51101cf 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3068,7 +3068,11 @@ static void disable_igfx_irq(struct pci_dev *dev) pci_iounmap(dev, regs); } +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0042, disable_igfx_irq); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0046, disable_igfx_irq); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x004a, disable_igfx_irq); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0106, 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);