From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752826AbbC2UHs (ORCPT ); Sun, 29 Mar 2015 16:07:48 -0400 Received: from mail-ig0-f172.google.com ([209.85.213.172]:33909 "EHLO mail-ig0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752621AbbC2UHo (ORCPT ); Sun, 29 Mar 2015 16:07:44 -0400 MIME-Version: 1.0 In-Reply-To: <55181065.8090807@oracle.com> References: <5514391F.2030300@oracle.com> <551495EE.20201@oracle.com> <5515F6B8.8020606@oracle.com> <5515F782.7060301@oracle.com> <551623C1.2040300@oracle.com> <5516BF4B.9030901@oracle.com> <55181065.8090807@oracle.com> Date: Sun, 29 Mar 2015 13:07:44 -0700 X-Google-Sender-Auth: FWPFh8oS0wuYS0xpavlHHItVqBY Message-ID: Subject: Re: d63e2e1f3df breaks sparc/T5-8 From: Yinghai Lu To: David Ahern , David Miller Cc: Bjorn Helgaas , "linux-pci@vger.kernel.org" , "sparclinux@vger.kernel.org" , LKML Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 29, 2015 at 7:47 AM, David Ahern wrote: > On 3/28/15 2:24 PM, Yinghai Lu wrote: >> >> Can you append "ofpci_debug=1" in boot command line? > > > here you go. [ 286.647560] PCI: scan_bus[/pci@300/pci@1/pci@0/pci@6] bus no 8 [ 286.921232] PCI: Claiming 0000:00:01.0: Resource 15: 0000800100000000..00008004afffffff [220c] [ 287.229190] PCI: Claiming 0000:01:00.0: Resource 15: 0000800100000000..00008004afffffff [220c] [ 287.533428] PCI: Claiming 0000:02:04.0: Resource 15: 0000800100000000..000080012fffffff [220c] [ 288.149831] PCI: Claiming 0000:03:00.0: Resource 15: 0000800100000000..000080012fffffff [220c] [ 288.252466] PCI: Claiming 0000:04:06.0: Resource 14: 0000800100000000..000080010fffffff [220c] [ 288.867196] PCI: Claiming 0000:05:00.0: Resource 0: 0000800100000000..0000800100001fff [204] [ 288.968221] pci 0000:05:00.0: can't claim BAR 0 [mem 0x800100000000-0x800100001fff]: no compatible bridge window the bridge resource has IORESOURCE_PREFETCH, but the device doesn't have that. So pci_claim_resource can not find parent resource for device resource: we can not put non pref mem under pref mem. Can you send out result from ? lspci -vvxxx -s 0000:05:00.0 If it does have pref, could be of device layer does not pass the pref flag properly via pci_parse_of_addrs/of_get_property(node, "assigned-addresses". or the addr0 from "ranges" and "assigned-address" has different definition. Thanks Yinghai From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yinghai Lu Date: Sun, 29 Mar 2015 20:07:44 +0000 Subject: Re: d63e2e1f3df breaks sparc/T5-8 Message-Id: List-Id: References: <5514391F.2030300@oracle.com> <551495EE.20201@oracle.com> <5515F6B8.8020606@oracle.com> <5515F782.7060301@oracle.com> <551623C1.2040300@oracle.com> <5516BF4B.9030901@oracle.com> <55181065.8090807@oracle.com> In-Reply-To: <55181065.8090807@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: David Ahern , David Miller Cc: Bjorn Helgaas , "linux-pci@vger.kernel.org" , "sparclinux@vger.kernel.org" , LKML On Sun, Mar 29, 2015 at 7:47 AM, David Ahern wrote: > On 3/28/15 2:24 PM, Yinghai Lu wrote: >> >> Can you append "ofpci_debug=1" in boot command line? > > > here you go. [ 286.647560] PCI: scan_bus[/pci@300/pci@1/pci@0/pci@6] bus no 8 [ 286.921232] PCI: Claiming 0000:00:01.0: Resource 15: 0000800100000000..00008004afffffff [220c] [ 287.229190] PCI: Claiming 0000:01:00.0: Resource 15: 0000800100000000..00008004afffffff [220c] [ 287.533428] PCI: Claiming 0000:02:04.0: Resource 15: 0000800100000000..000080012fffffff [220c] [ 288.149831] PCI: Claiming 0000:03:00.0: Resource 15: 0000800100000000..000080012fffffff [220c] [ 288.252466] PCI: Claiming 0000:04:06.0: Resource 14: 0000800100000000..000080010fffffff [220c] [ 288.867196] PCI: Claiming 0000:05:00.0: Resource 0: 0000800100000000..0000800100001fff [204] [ 288.968221] pci 0000:05:00.0: can't claim BAR 0 [mem 0x800100000000-0x800100001fff]: no compatible bridge window the bridge resource has IORESOURCE_PREFETCH, but the device doesn't have that. So pci_claim_resource can not find parent resource for device resource: we can not put non pref mem under pref mem. Can you send out result from ? lspci -vvxxx -s 0000:05:00.0 If it does have pref, could be of device layer does not pass the pref flag properly via pci_parse_of_addrs/of_get_property(node, "assigned-addresses". or the addr0 from "ranges" and "assigned-address" has different definition. Thanks Yinghai