From patchwork Fri Apr 21 05:04:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 9691841 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4B13C60328 for ; Fri, 21 Apr 2017 05:08:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D6F828520 for ; Fri, 21 Apr 2017 05:08:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 32493285E9; Fri, 21 Apr 2017 05:08:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F288B285E8 for ; Fri, 21 Apr 2017 05:07:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1035363AbdDUFHm (ORCPT ); Fri, 21 Apr 2017 01:07:42 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:36093 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1035315AbdDUFFt (ORCPT ); Fri, 21 Apr 2017 01:05:49 -0400 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v3L55clS027629 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 21 Apr 2017 05:05:38 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0021.oracle.com (8.13.8/8.14.4) with ESMTP id v3L55cLP006014 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 21 Apr 2017 05:05:38 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v3L55bR2016975; Fri, 21 Apr 2017 05:05:37 GMT Received: from dhcp-whq-twvpn-3-vpnpool-10-159-248-209.vpn.oracle.com (/69.181.250.163) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 20 Apr 2017 22:05:37 -0700 From: Yinghai Lu To: Bjorn Helgaas , David Miller , Benjamin Herrenschmidt Cc: Wei Yang , Khalid Aziz , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH 12/13] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64 Date: Thu, 20 Apr 2017 22:04:59 -0700 Message-Id: <20170421050500.13957-13-yinghai@kernel.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170421050500.13957-1-yinghai@kernel.org> References: <20170421050500.13957-1-yinghai@kernel.org> X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If host bridge does not have mmio64 above 4G, We don't need to treat device non-pref mmio64 as as pref mmio64. Signed-off-by: Yinghai Lu Tested-by: Khalid Aziz --- drivers/pci/setup-bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index b3fd314..7a0e59b 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -738,7 +738,7 @@ int pci_claim_bridge_resource(struct pci_dev *bridge, int i) static bool pci_up_path_over_pref_mem64(struct pci_bus *bus) { if (pci_is_root_bus(bus)) - return true; + return to_pci_host_bridge(bus->bridge)->has_mem64; if (bus->self) { int i;