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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 004FCC433E1 for ; Fri, 19 Jun 2020 16:49:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB67A204EC for ; Fri, 19 Jun 2020 16:49:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592585352; bh=Q5RfkEOwMa2sKTnOL1vN4j9QXp/MzQ8CeuVxeHJ2GsE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=CN7c667aE7Z6yDjvABX+eZ1XLilA45DpXs0qmq08S3tU9w4VcITUIX7pEPrk3TvV5 XZSkZOTk2H+otwWAusha6QCqZmf05TzLBKSJ6Pe1/UtLDzB+Y73qxDjodOAGce2Ho7 pl45OLoZCsF03bneLg604wU6pgPdWOAzdU36xlRQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733255AbgFSQtE (ORCPT ); Fri, 19 Jun 2020 12:49:04 -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: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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]