Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp1000822ybt; Fri, 19 Jun 2020 21:10:38 -0700 (PDT) X-Google-Smtp-Source: ABdhPJy137CGUdmMAe8Nzr8I0BgyMK3ZKR6T8/DCLur/ysWZW2/A5+MR1SiGJIHlsWfPlkQM0Dw7 X-Received: by 2002:aa7:c3d3:: with SMTP id l19mr6741099edr.126.1592626238174; Fri, 19 Jun 2020 21:10:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1592626238; cv=none; d=google.com; s=arc-20160816; b=LMGKxHqQvs+QNvw9SHlC/z0WSUI7+jEpZJY3pgwwdkQsbX85G2C/l8eyNe27SIcTAi jnwlN3mFRHgNpD6kU3GBRPYLXSQdfCL1neUM8FZ6VPrNFW9ePeBGUn4qIkMPSTUptsfp 3BEsva9TOU3ciSu0sQP1/5yW2UqgqrDD3+uaQJlFrlEkVfT0VHLji8Hj5WMS3r54vMqg akZW7qRG/YJ7N0YSicBMRWGuoIBSqRiRRD3l0lXwixyv9QNuzNT4iyao6yQ2s/YqU309 vpDjzXgkXRRUTVo2un573EYkApK2gaz6CHeRnFDIZF6RdGTAntv0J/nnKlJ2Nb8nhu2Y 7lPw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=Am5rqIHdPg832Zx95C8KhFuXlWg9b1E0pyzl9DUR0Gw=; b=PzRUC53rYUXUnwrEc5ZzCw5khv8w6JBdwFZ5Z4zNrbv11vCTdpEZJrIOh7ptVVjJJU kXlF3/vZh87TMAYbCDHItp6U/cvfjxxjCvF1LdULL9ejxo6HlAisO+tHKDTnYSepTiBX OaiVR2fCiagX4DCKsnn1qw/5M0Y6JzbXMRXHVRlwirHe6t2waEe16etRNKchkB/4Gn+R pS/709Vns/m1YjD0r/aVFux4AUU2g0Y4Eku/3DHCQ37jIhAgSYrXO2vwK6XJRo9pGfNf RVg2s9oMAT17Y5qcrVH0upEwrxdGLi3o/alXEKuU2eYVxohNLZHUVXLLhLbE+aWk9ihm s0RQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=uEdpMf17; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id y3si5211905edm.183.2020.06.19.21.10.14; Fri, 19 Jun 2020 21:10:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=uEdpMf17; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405080AbgFSQtF (ORCPT + 99 others); Fri, 19 Jun 2020 12:49:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:57516 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733089AbgFSOju (ORCPT ); Fri, 19 Jun 2020 10:39:50 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CCE99208B8; Fri, 19 Jun 2020 14:39:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592577590; bh=Q5RfkEOwMa2sKTnOL1vN4j9QXp/MzQ8CeuVxeHJ2GsE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uEdpMf17Bxg9dIjPYnCBY9b77fdstKgpaDtABX590dgjU/GKtZc/FfhsVOBg2AdAR 7SUIo3irjwhDLmL+skXyd1RuXAeD+GAHY0lkalc+s7DqBHgTNGUFUFcxXARNJ6v2Vm JAMewakClS12YpwGR2ge8FuYpqeysX6V6o4Xudb0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Xiaochun Lee , Bjorn Helgaas Subject: [PATCH 4.9 010/128] x86/PCI: Mark Intel C620 MROMs as having non-compliant BARs Date: Fri, 19 Jun 2020 16:31:44 +0200 Message-Id: <20200619141620.689591324@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200619141620.148019466@linuxfoundation.org> References: <20200619141620.148019466@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Xiaochun Lee commit 1574051e52cb4b5b7f7509cfd729b76ca1117808 upstream. The Intel C620 Platform Controller Hub has MROM functions that have non-PCI registers (undocumented in the public spec) where BAR 0 is supposed to be, which results in messages like this: pci 0000:00:11.0: [Firmware Bug]: reg 0x30: invalid BAR (can't size) Mark these MROM functions as having non-compliant BARs so we don't try to probe any of them. There are no other BARs on these devices. See the Intel C620 Series Chipset Platform Controller Hub Datasheet, May 2019, Document Number 336067-007US, sec 2.1, 35.5, 35.6. [bhelgaas: commit log, add 0xa26d] Link: https://lore.kernel.org/r/1589513467-17070-1-git-send-email-lixiaochun.2888@163.com Signed-off-by: Xiaochun Lee Signed-off-by: Bjorn Helgaas Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- arch/x86/pci/fixup.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -571,6 +571,10 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IN DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_invalid_bar); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_invalid_bar); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_invalid_bar); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0xa1ec, pci_invalid_bar); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0xa1ed, pci_invalid_bar); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0xa26c, pci_invalid_bar); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0xa26d, pci_invalid_bar); /* * Device [1022:7914]