From patchwork Tue Nov 26 01:28:10 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 294146 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 79D132C00C1 for ; Tue, 26 Nov 2013 12:29:33 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754047Ab3KZB3a (ORCPT ); Mon, 25 Nov 2013 20:29:30 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:26482 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752056Ab3KZB30 (ORCPT ); Mon, 25 Nov 2013 20:29:26 -0500 Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by aserp1040.oracle.com (Sentrion-MTA-4.3.1/Sentrion-MTA-4.3.1) with ESMTP id rAQ1TISq024846 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 26 Nov 2013 01:29:18 GMT Received: from userz7021.oracle.com (userz7021.oracle.com [156.151.31.85]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id rAQ1TGah012270 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 26 Nov 2013 01:29:16 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id rAQ1TF0c007838; Tue, 26 Nov 2013 01:29:15 GMT Received: from linux-siqj.site (/10.132.126.191) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 25 Nov 2013 17:29:15 -0800 From: Yinghai Lu To: Bjorn Helgaas Cc: "Rafael J. Wysocki" , Gu Zheng , Guo Chao , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , David Airlie Subject: [PATCH v2 10/10] intel-gtt: Read 64bit for gmar_bus_addr Date: Mon, 25 Nov 2013 17:28:10 -0800 Message-Id: <1385429290-25397-11-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1385429290-25397-1-git-send-email-yinghai@kernel.org> References: <1385429290-25397-1-git-send-email-yinghai@kernel.org> X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org That bar could be 64bit pref mem and above 4G. -v2: refresh to 3.13-rc1 Signed-off-by: Yinghai Lu Cc: David Airlie Reviewed-by: Daniel Vetter --- drivers/char/agp/intel-gtt.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index b8e2014..b929e9d 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -609,8 +609,10 @@ static bool intel_gtt_can_wc(void) static int intel_gtt_init(void) { u32 gma_addr; + u32 addr_hi = 0; u32 gtt_map_size; int ret; + int pos; ret = intel_private.driver->setup(); if (ret != 0) @@ -660,13 +662,17 @@ static int intel_gtt_init(void) } if (INTEL_GTT_GEN <= 2) - pci_read_config_dword(intel_private.pcidev, I810_GMADDR, - &gma_addr); + pos = I810_GMADDR; else - pci_read_config_dword(intel_private.pcidev, I915_GMADDR, - &gma_addr); + pos = I915_GMADDR; + + pci_read_config_dword(intel_private.pcidev, pos, &gma_addr); + + if (gma_addr & PCI_BASE_ADDRESS_MEM_TYPE_64) + pci_read_config_dword(intel_private.pcidev, pos + 4, &addr_hi); intel_private.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK); + intel_private.gma_bus_addr |= (u64)addr_hi << 32; return 0; }