[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20211119171444.109206444@linuxfoundation.org>
Date: Fri, 19 Nov 2021 18:38:45 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Rui Salvaterra <rsalvaterra@...il.com>,
Marc Zyngier <maz@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Bjorn Helgaas <helgaas@...nel.org>
Subject: [PATCH 5.14 12/15] PCI: Add MSI masking quirk for Nvidia ION AHCI
From: Marc Zyngier <maz@...nel.org>
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@...il.com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Rui Salvaterra <rsalvaterra@...il.com>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Bjorn Helgaas <helgaas@...nel.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@...uxfoundation.org>
---
drivers/pci/quirks.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5760,3 +5760,9 @@ static void apex_pci_fixup_class(struct
}
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);
Powered by blists - more mailing lists