From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mtaout02-winn.ispmail.ntl.com ([81.103.221.48]:23306 "EHLO mtaout02-winn.ispmail.ntl.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755694Ab2DORcG (ORCPT ); Sun, 15 Apr 2012 13:32:06 -0400 Message-ID: <4F8B0609.8010603@snewbury.org.uk> Date: Sun, 15 Apr 2012 18:31:53 +0100 From: Steven Newbury MIME-Version: 1.0 To: Yinghai Lu CC: "Barnes, Jesse" , Dave Airlie , Bjorn Helgaas , linux-pci@vger.kernel.org, DRI mailing list Subject: Re: PCI resources above 4GB References: <1333968563.5678.19.camel@infinity> <4F848357.3060007@snewbury.org.uk> <4F848E10.1090703@snewbury.org.uk> <1334089568.4083.2.camel@Nokia-N900> <4F84A3EC.6030903@snewbury.org.uk> <1334229754.30606.7.camel@Nokia-N900> <1334248841.2910.6.camel@Nokia-N900> <4F89B5E8.3040906@snewbury.org.uk> <4F89BC84.50308@snewbury.org.uk> <4F89C513.3000006@snewbury.org.uk> <4F89CB16.2000908@snewbury.org.uk> <4F89CE43.7040200@snewbury.org.uk> <4F8AA0DC.6010902@snewbury.org.uk> <4F8AB312.7060606@snewbury.org.uk> <4F8B04A4.4070507@snewbury.org.uk> In-Reply-To: <4F8B04A4.4070507@snewbury.org.uk> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-pci-owner@vger.kernel.org List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 15/04/12 18:25, Steven Newbury wrote: > On 15/04/12 12:37, Steven Newbury wrote: >> On 15/04/12 11:20, Steven Newbury wrote: >>> On 14/04/12 21:48, Yinghai Lu wrote: > > [snip] > >>>> On Sat, Apr 14, 2012 at 12:21 PM, Steven Newbury > >>>>>> >>>>>> pci 0000:03:08.0: BAR 15: can't assign mem pref (size >>>>>> 0x18000000) >>>>> Ah! Not enough space for the bridge window!:( >>>>> > >>>> please append pci=norom ... > >>> That worked. Except of course the radeon driver can't POST the >>> card without the ROM! :-P >> Can the ROM resource be mapped above 4G? > I didn't really think that through, obviously it can't because > it's not on a 64-bit capable bridge. I wonder though, could it be > shadowed then disabled early before the IOMEM? I see there's "#if 0"'d helper functions for exactly that in rom.c. They've been disabled since 2007! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+LBgkACgkQGcb56gMuC61NGgCeJoZY9iUXeM6GuhDAntEjVrAu rsUAoIROJFA5xBrZ9qzYQTGSf7lTJUTA =lofL -----END PGP SIGNATURE----- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Newbury Subject: Re: PCI resources above 4GB Date: Sun, 15 Apr 2012 18:31:53 +0100 Message-ID: <4F8B0609.8010603@snewbury.org.uk> References: <1333968563.5678.19.camel@infinity> <4F848357.3060007@snewbury.org.uk> <4F848E10.1090703@snewbury.org.uk> <1334089568.4083.2.camel@Nokia-N900> <4F84A3EC.6030903@snewbury.org.uk> <1334229754.30606.7.camel@Nokia-N900> <1334248841.2910.6.camel@Nokia-N900> <4F89B5E8.3040906@snewbury.org.uk> <4F89BC84.50308@snewbury.org.uk> <4F89C513.3000006@snewbury.org.uk> <4F89CB16.2000908@snewbury.org.uk> <4F89CE43.7040200@snewbury.org.uk> <4F8AA0DC.6010902@snewbury.org.uk> <4F8AB312.7060606@snewbury.org.uk> <4F8B04A4.4070507@snewbury.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4F8B04A4.4070507@snewbury.org.uk> Sender: linux-pci-owner@vger.kernel.org To: Yinghai Lu Cc: "Barnes, Jesse" , Dave Airlie , Bjorn Helgaas , linux-pci@vger.kernel.org, DRI mailing list List-Id: dri-devel@lists.freedesktop.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 15/04/12 18:25, Steven Newbury wrote: > On 15/04/12 12:37, Steven Newbury wrote: >> On 15/04/12 11:20, Steven Newbury wrote: >>> On 14/04/12 21:48, Yinghai Lu wrote: > > [snip] > >>>> On Sat, Apr 14, 2012 at 12:21 PM, Steven Newbury > >>>>>> >>>>>> pci 0000:03:08.0: BAR 15: can't assign mem pref (size >>>>>> 0x18000000) >>>>> Ah! Not enough space for the bridge window!:( >>>>> > >>>> please append pci=norom ... > >>> That worked. Except of course the radeon driver can't POST the >>> card without the ROM! :-P >> Can the ROM resource be mapped above 4G? > I didn't really think that through, obviously it can't because > it's not on a 64-bit capable bridge. I wonder though, could it be > shadowed then disabled early before the IOMEM? I see there's "#if 0"'d helper functions for exactly that in rom.c. They've been disabled since 2007! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+LBgkACgkQGcb56gMuC61NGgCeJoZY9iUXeM6GuhDAntEjVrAu rsUAoIROJFA5xBrZ9qzYQTGSf7lTJUTA =lofL -----END PGP SIGNATURE-----