From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2AB5C433EF for ; Wed, 24 Nov 2021 13:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346113AbhKXNOi (ORCPT ); Wed, 24 Nov 2021 08:14:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:56644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343512AbhKXNLz (ORCPT ); Wed, 24 Nov 2021 08:11:55 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5450C613D5; Wed, 24 Nov 2021 12:42:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637757727; bh=eK36jgu27/MC9jk/GRb2732biIOJb6QUwZd33yza+BM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SSaYTKDoH6q1h60g7HBCe31FfDWFhTPbW2fI3ooL3CWFOo82xoy5c6AO4OLTECkqY 4glZTv0Ziu0McRAjXxvAnIPiaB1K2NhPfVl1O8R+okOZJgFzY34GVBOySXRcPy9CoD vHXpHVAIKYVdz8EUwuJBJWXLw65ko2reeIZp04yo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Rui Salvaterra , Marc Zyngier , Thomas Gleixner , Bjorn Helgaas Subject: [PATCH 4.19 256/323] PCI: Add MSI masking quirk for Nvidia ION AHCI Date: Wed, 24 Nov 2021 12:57:26 +0100 Message-Id: <20211124115727.537972219@linuxfoundation.org> X-Mailer: git-send-email 2.34.0 In-Reply-To: <20211124115718.822024889@linuxfoundation.org> References: <20211124115718.822024889@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marc Zyngier 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 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 Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5579,3 +5579,9 @@ 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);