From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753674AbaIWTAK (ORCPT ); Tue, 23 Sep 2014 15:00:10 -0400 Received: from nm18-vm10.access.bullet.mail.bf1.yahoo.com ([216.109.115.89]:37286 "EHLO nm18-vm10.access.bullet.mail.bf1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751307AbaIWTAI (ORCPT ); Tue, 23 Sep 2014 15:00:08 -0400 X-Greylist: delayed 381 seconds by postgrey-1.27 at vger.kernel.org; Tue, 23 Sep 2014 15:00:08 EDT DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=rogers.com; b=sXg6et3aSJlXM9HHUVYH0PPZkzv4WP6HWJpSwOMgD82m1XVqDjLtRwi9dq/1soY7Wszj3cNunnmQMwkE7IP6vLlaZt7tcxQoQ3OVxPVh3T4SNqNeQKVGYBvQGYJQk4A8I2u51Bt+8kGphLqKbaiTP1fGzfhxgIYMLXxTaVJ5k34=; X-Yahoo-Newman-Id: 530162.60049.bm@smtp117.sbc.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: wdyjPukVM1lEm28bnttXryodm90Rq.bwrmgOBXt7lHO21Oe 2egYEEshbaMLiW0WU7vto0fsQaOGOx543Xb6feuLx5TPWtJj7fICcdaG2XHo zhuLcviAqF2L8TCAJCDQ_3TRKECEV16cy5p7vhWIOxlO6UDe8JRTiYLxiyBX xo_vpLYwpD6B..01Kz41.mNey_u0E.E.Z1gZ3c_sxRQluwNZK0L2O75MIr3R 5o98o8gNg7MtmlTB7mLiOlRK3GWfga1Jr3R0uTojTp1YCGhxD75qiqbHLIeU RoF8AIVjfL8SRaiJMT.RVsXI3YgFtgdLVPqALduUKuWV6pxk8DDBo4fqScR5 EJRPbHU.Vk_kpvPlBx6_GoEct4Rq4pKx7OE0jAfLzkEz0s3poDDocM0GK5rJ vU1YuMzgdkznpQ2kxxsexMlslx9BQ9RS8PiLDa5kPcefpDqSomlByxVxoASN AW1mzv.1PkG3uGLBaoD3erKgC9pBC8ZbgrcOMDugZt5jzKPSXihnawt3MD2H eaLq.dB.tAdtp7go5MjLcgd8CGWT7oIh.CO.2Zx3TWU8f4.Tn_M80IjDKMsC e8tMr0KDH3yA8YbgmyMm45Zvf_00yLNeUDp6ZO_WwrcPmtypjWJgf76VQEgu D_XHUNNP2B0knR2YOL8DHwyiH8Q-- X-Yahoo-SMTP: rZzhDImswBA_40COIyZI42.8nAz5YXic.zo1v550XQVtX7k- From: Shawn Starr To: Bjorn Helgaas Cc: Kernel development list , "linux-pci@vger.kernel.org" Subject: Re: [3.16-rcX][pciehp][radeon] PCIe HotPlug conflicts with radeon GPU Date: Tue, 23 Sep 2014 14:53:35 -0400 Message-ID: <1722798.naFc0gpZgU@segfault> Organization: sh0n.net User-Agent: KMail/4.14.1 (Linux/3.17.0-0.rc5.git5.2.fc22.1.x86_64; KDE/4.14.1; x86_64; ; ) In-Reply-To: References: <2354837.kuMZPK0Y1Q@segfault> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On September 11, 2014 04:26:21 PM Bjorn Helgaas wrote: > [+cc linux-pci] > > On Sat, Aug 2, 2014 at 10:02 AM, Shawn Starr wrote: > > Hello devs, > > > > There are two issues I am encountering with the PCIe Hotplug driver on my > > Lenovo Laptop (W500). I note this goes back further than 3.15. > > > > It is noted here: > > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id= > > f244d8b623dae7a7bc695b0336f67729b95a9736 > > https://bugzilla.kernel.org/show_bug.cgi?id=79701 > > > > And my open bug here: > > https://bugzilla.kernel.org/show_bug.cgi?id=77261 > > > > 1) If I enable the device to use both the integrated and discrete GPU, > > pciehp will decide to force unload radeon because it puts itself into a > > power saving state, fails back to the Intel integrated GPU in this case > > unless I tell radeon.ko to runpm=0 (no power management, then pciehp wont > > touch it). > > > > 2) If the Radeon GPU resets and you use pci_reset=1 for kernel module > > option, pciehp decides to force unload radeon even though the GPU is > > trying to setup after failing. > > > > Kernel I am using right now: 3.16.0-0.rc7.git3.1.fc21.x86_64 (about to > > boot into snapshot kernel-core-3.16.0-0.rc7.git4.1.fc21.x86_64) > Hi Shawn, > > Thanks for the report and sorry that it got dropped. But I see you're > cc'd on https://bugzilla.kernel.org/show_bug.cgi?id=79701, so you've > probably seen the work there. If you can try out the patches I just > posted, that would be great. > > Bjorn Hi Bjorn, I will be testing this in 3.17-rcX if it hits 3.17, otherwise manually patch it in. Thanks, Shawn