From patchwork Wed Mar 14 16:34:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Desnes A. Nunes do Rosario" X-Patchwork-Id: 885909 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 401cmY5wvXz9sBk for ; Thu, 15 Mar 2018 03:36:13 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752522AbeCNQfk (ORCPT ); Wed, 14 Mar 2018 12:35:40 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:50236 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752519AbeCNQfh (ORCPT ); Wed, 14 Mar 2018 12:35:37 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w2EGYwlJ079214 for ; Wed, 14 Mar 2018 12:35:37 -0400 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0a-001b2d01.pphosted.com with ESMTP id 2gq515ff61-1 (version=TLSv1.2 cipher=AES256-SHA256 bits=256 verify=NOT) for ; Wed, 14 Mar 2018 12:35:37 -0400 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 14 Mar 2018 10:35:36 -0600 Received: from b03cxnp07029.gho.boulder.ibm.com (9.17.130.16) by e36.co.us.ibm.com (192.168.1.136) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 14 Mar 2018 10:35:32 -0600 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w2EGZWfM7143848; Wed, 14 Mar 2018 09:35:32 -0700 Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1290778043; Wed, 14 Mar 2018 10:35:32 -0600 (MDT) Received: from ibm.ibmmodules.com (unknown [9.85.207.171]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP id 3336278038; Wed, 14 Mar 2018 10:35:27 -0600 (MDT) From: "Desnes A. Nunes do Rosario" To: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: bhelgaas@google.com, benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au, ruscur@russell.cc, aik@ozlabs.ru, david@gibson.dropbear.id.au, fbarrat@linux.vnet.ibm.com, brking@linux.vnet.ibm.com Subject: [PATCH 2/2, powerpc/powernv] powerpc/powernv: Tweak PCI_DEV_FLAGS_QUIET_PCI_REALIGN on/off during boot Date: Wed, 14 Mar 2018 13:34:55 -0300 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180314163455.15854-1-desnesn@linux.vnet.ibm.com> References: <20180314163455.15854-1-desnesn@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18031416-0020-0000-0000-00000D972FBD X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008673; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000254; SDB=6.01002988; UDB=6.00510401; IPR=6.00782318; MB=3.00020033; MTD=3.00000008; XFM=3.00000015; UTC=2018-03-14 16:35:35 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18031416-0021-0000-0000-0000607E46D6 Message-Id: <20180314163455.15854-3-desnesn@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-03-14_08:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1803140187 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Turn on PCI_DEV_FLAGS_QUIET_PCI_REALIGN flag on powernv's pci driver to silent PCI realignment messages through a early stage hook, and turn it off right before the pci device is enabled with a final stage hook. Fixes: 38274637699 ("powerpc/powernv: Override pcibios_default_alignment() to force PCI devices to be page aligned") Signed-off-by: Desnes A. Nunes do Rosario --- arch/powerpc/platforms/powernv/pci.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index 69d102cbf48f..d28ce0899487 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -1108,6 +1108,20 @@ static void pnv_p7ioc_rc_quirk(struct pci_dev *dev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_IBM, 0x3b9, pnv_p7ioc_rc_quirk); +/* Fixup that disables PCI realignment menssages for all PCI devices */ +static void disable_realign_menssages(struct pci_dev *dev) +{ + dev->dev_flags |= PCI_DEV_FLAGS_QUIET_PCI_REALIGN; +} +DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, disable_realign_menssages); + +/* Fixup that enables PCI realignment messages for all PCI devices */ +static void enable_realign_menssages(struct pci_dev *dev) +{ + dev->dev_flags ^= PCI_DEV_FLAGS_QUIET_PCI_REALIGN; +} +DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, enable_realign_menssages); + void __init pnv_pci_init(void) { struct device_node *np;