From f21082fb20dbfb3e42b769b59ef21c2a7f2c7c1f Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 4 Nov 2021 18:01:30 +0000 Subject: PCI: Add MSI masking quirk for Nvidia ION AHCI The ION AHCI device pretends that MSI masking isn't a thing, while it actually implements it and needs MSIs to be unmasked to work. Add a quirk to that effect. Reported-by: Rui Salvaterra Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Tested-by: Rui Salvaterra Reviewed-by: Thomas Gleixner Cc: Bjorn Helgaas Link: https://lore.kernel.org/r/CALjTZvbzYfBuLB+H=fj2J+9=DxjQ2Uqcy0if_PvmJ-nU-qEgkg@mail.gmail.com Link: https://lore.kernel.org/r/20211104180130.3825416-3-maz@kernel.org --- drivers/pci/quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index aedb78c86ddc..003950c738d2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5851,3 +5851,9 @@ DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_PERICOM, 0x2303, pci_fixup_pericom_acs_store_forward); DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_PERICOM, 0x2303, pci_fixup_pericom_acs_store_forward); + +static void nvidia_ion_ahci_fixup(struct pci_dev *pdev) +{ + pdev->dev_flags |= PCI_DEV_FLAGS_HAS_MSI_MASKING; +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup); -- cgit v1.2.3