PCI: Add MSI masking quirk for Nvidia ION AHCI
authorMarc Zyngier <maz@kernel.org>
Thu, 4 Nov 2021 18:01:30 +0000 (18:01 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 21 Nov 2021 12:46:37 +0000 (13:46 +0100)
commit5bf5f464831c26dca627bf32d4e51067dcd39d64
tree6cca991516b789d915f68d478b694043062312a0
parentf28c620e1ac1b7312519516217240556193c2618
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>
drivers/pci/quirks.c