diff options
author | Marc Zyngier <maz@kernel.org> | 2021-11-04 21:01:30 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-21 15:44:14 +0300 |
commit | 7931b7e318827104b2bfd4c2210aa8a870258609 (patch) | |
tree | f2d87faeabab8308adbf8022af14fd756c263637 /drivers/pci | |
parent | 06ce633b3bfd1077922c9ce76e0da0c3d1c527ed (diff) | |
download | linux-7931b7e318827104b2bfd4c2210aa8a870258609.tar.xz |
PCI: Add MSI masking quirk for Nvidia ION AHCI
commit f21082fb20dbfb3e42b769b59ef21c2a7f2c7c1f upstream.
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 <rsalvaterra@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <helgaas@kernel.org>
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r-- | drivers/pci/quirks.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6c957124f84d..208fa03acdda 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5796,3 +5796,9 @@ static void apex_pci_fixup_class(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a, PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class); + +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); |