From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:51886 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752100AbeCNQfd (ORCPT ); Wed, 14 Mar 2018 12:35:33 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w2EGXf0g037268 for ; Wed, 14 Mar 2018 12:35:32 -0400 Received: from e35.co.us.ibm.com (e35.co.us.ibm.com [32.97.110.153]) by mx0a-001b2d01.pphosted.com with ESMTP id 2gq7171040-1 (version=TLSv1.2 cipher=AES256-SHA256 bits=256 verify=NOT) for ; Wed, 14 Mar 2018 12:35:32 -0400 Received: from localhost by e35.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 14 Mar 2018 10:35:31 -0600 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 1/2, pci] pci: Addition of PCI_DEV_FLAGS_QUIET_PCI_REALIGN attribute to the PCI subsystem Date: Wed, 14 Mar 2018 13:34:54 -0300 In-Reply-To: <20180314163455.15854-1-desnesn@linux.vnet.ibm.com> References: <20180314163455.15854-1-desnesn@linux.vnet.ibm.com> Message-Id: <20180314163455.15854-2-desnesn@linux.vnet.ibm.com> Sender: linux-pci-owner@vger.kernel.org List-ID: Add PCI_DEV_FLAGS_QUIET_PCI_REALIGN to pci_dev_flags and use it to silent PCI realignment messages if the flag is turned on by a driver. Signed-off-by: Desnes A. Nunes do Rosario --- drivers/pci/pci.c | 3 ++- drivers/pci/setup-res.c | 3 ++- include/linux/pci.h | 2 ++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 8c71d1a66cdd..be197c944e5f 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -5505,7 +5505,8 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev) return; } - pci_info(dev, "Disabling memory decoding and releasing memory resources\n"); + if (!(dev->dev_flags & PCI_DEV_FLAGS_QUIET_PCI_REALIGN)) + pci_info(dev, "Disabling memory decoding and releasing memory resources\n"); pci_read_config_word(dev, PCI_COMMAND, &command); command &= ~PCI_COMMAND_MEMORY; pci_write_config_word(dev, PCI_COMMAND, command); diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 369d48d6c6f1..00a538def763 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -172,7 +172,8 @@ EXPORT_SYMBOL(pci_claim_resource); void pci_disable_bridge_window(struct pci_dev *dev) { - pci_info(dev, "disabling bridge mem windows\n"); + if (!(dev->dev_flags & PCI_DEV_FLAGS_QUIET_PCI_REALIGN)) + pci_info(dev, "disabling bridge mem windows\n"); /* MMIO Base/Limit */ pci_write_config_dword(dev, PCI_MEMORY_BASE, 0x0000fff0); diff --git a/include/linux/pci.h b/include/linux/pci.h index e057e8cc63e7..993f9c7dcc00 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -205,6 +205,8 @@ enum pci_dev_flags { PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10), /* Don't use Relaxed Ordering for TLPs directed at this device */ PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11), + /* Silent PCI resource realignment messages */ + PCI_DEV_FLAGS_QUIET_PCI_REALIGN = (__force pci_dev_flags_t) (1 << 12), }; enum pci_irq_reroute_variant { -- 2.14.3