From patchwork Fri Dec 11 05:06:10 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 555536 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 16FFE14076E for ; Fri, 11 Dec 2015 16:20:22 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752785AbbLKFT5 (ORCPT ); Fri, 11 Dec 2015 00:19:57 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:41875 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751949AbbLKFMs (ORCPT ); Fri, 11 Dec 2015 00:12:48 -0500 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id tBB57SU8016218 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 11 Dec 2015 05:07:28 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.13.8/8.13.8) with ESMTP id tBB57ReT025168 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 11 Dec 2015 05:07:28 GMT Received: from abhmp0011.oracle.com (abhmp0011.oracle.com [141.146.116.17]) by userv0121.oracle.com (8.13.8/8.13.8) with ESMTP id tBB57RvO014314; Fri, 11 Dec 2015 05:07:27 GMT Received: from linux-siqj.site (/69.181.250.163) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 10 Dec 2015 21:07:26 -0800 From: Yinghai Lu To: Bjorn Helgaas , David Miller , Benjamin Herrenschmidt , Wei Yang , TJ , Yijing Wang , Khalid Aziz Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH v9 14/60] PCI: Only treat non-pref mmio64 as pref if host bridge has mmio64 Date: Thu, 10 Dec 2015 21:06:10 -0800 Message-Id: <1449810416-2950-15-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1449810416-2950-1-git-send-email-yinghai@kernel.org> References: <1449810416-2950-1-git-send-email-yinghai@kernel.org> X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org 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 d627218..0befb0a 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -742,7 +742,7 @@ 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;