Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756643Ab0D1TNF (ORCPT ); Wed, 28 Apr 2010 15:13:05 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:48041 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752953Ab0D1TND (ORCPT ); Wed, 28 Apr 2010 15:13:03 -0400 Message-ID: <4BD8882A.6050307@oracle.com> Date: Wed, 28 Apr 2010 12:10:34 -0700 From: Yinghai User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100317 SUSE/3.0.4-1.1.1 Thunderbird/3.0.4 MIME-Version: 1.0 To: Bjorn Helgaas CC: Linus Torvalds , Jesse Barnes , "H. Peter Anvin" , Andy Isaacson , "R. Andrew Bailey" , Thomas Gleixner , Ingo Molnar , guenter.roeck@ericsson.com, "linux-pci@vger.kernel.org" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Thomas Renninger , yaneti@declera.com Subject: Re: [PATCH] x86/PCI: never allocate PCI MMIO resources below BIOS_END References: <2b1eecc3-75b8-4ab3-8932-fdf7cc1e181b@email.android.com> <201004281007.37016.bjorn.helgaas@hp.com> <4BD86D05.20402@oracle.com> <201004281306.05648.bjorn.helgaas@hp.com> In-Reply-To: <201004281306.05648.bjorn.helgaas@hp.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: acsinet15.oracle.com [141.146.126.227] X-CT-RefId: str=0001.0A090203.4BD88896.0043:SCFMA922111,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3173 Lines: 63 On 04/28/2010 12:06 PM, Bjorn Helgaas wrote: > On Wednesday 28 April 2010 11:14:45 am Yinghai Lu wrote: >> Never mind, for 2.6.34 your patch should be good enough. > > Uh, OK. > > I'm not trying to be a nuisance, but if there's a machine where > we think there's a bridge window like [mem 0xfed20000-0xffffffff], > I want to fix it, even if you think it's "good enough for 2.6.34." > > I was hoping you could specifically confirm that "yes, that AMD > machine was fixed by d558b483d5a," or else give me some more > information that would help me figure out what's going on. [ 0.000000] BIOS-e820: 0000000000000100 - 0000000000098c00 (usable) [ 0.000000] BIOS-e820: 0000000000098c00 - 00000000000a0000 (reserved) [ 0.000000] BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved) [ 0.000000] BIOS-e820: 0000000000100000 - 00000000d7fa0000 (usable) [ 0.000000] BIOS-e820: 00000000d7fae000 - 00000000d7fb0000 (reserved) [ 0.000000] BIOS-e820: 00000000d7fb0000 - 00000000d7fbe000 (ACPI data) [ 0.000000] BIOS-e820: 00000000d7fbe000 - 00000000d7ff0000 (ACPI NVS) [ 0.000000] BIOS-e820: 00000000d7ff0000 - 00000000f0000000 (reserved) [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) [ 0.000000] BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved) [ 0.000000] BIOS-e820: 0000000100000000 - 0000008028000000 (usable) [ 6.960006] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 6.984225] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-06]) [ 7.023528] pci_root PNP0A03:00: host bridge window [io 0x0000-0x03af] [ 7.024014] pci_root PNP0A03:00: host bridge window [io 0x03b0-0x03bb] [ 7.028005] pci_root PNP0A03:00: host bridge window [io 0x03bc-0x03bf] [ 7.032005] pci_root PNP0A03:00: host bridge window [io 0x03c0-0x03df] [ 7.036005] pci_root PNP0A03:00: host bridge window [io 0x03e0-0xefff] [ 7.040011] pci_root PNP0A03:00: host bridge window [mem 0xd8000000-0xe7ffffff] [ 7.044005] pci_root PNP0A03:00: host bridge window [mem 0xf0000000-0xfe9fffff] [ 7.048005] pci_root PNP0A03:00: host bridge window [mem 0xfec00000-0xfed0ffff] [ 7.052005] pci_root PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff] [ 7.056011] pci_root PNP0A03:00: host bridge window [mem 0xfed20000-0xffffffff] d7ff0000-efffffff : reserved d8000000-e7ffffff : PCI Bus 0000:00 d8000000-dfffffff : GART e8000000-efffffff : PCI Bus 0000:80 fec00000-fed0ffff : PCI Bus 0000:00 fec00000-fec00fff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed10000-fed1ffff : PCI Bus 0000:80 fed20000-ffffffff : PCI Bus 0000:00 fee00000-fee00fff : Local APIC fee00000-fee00fff : reserved fefff000-feffffff : pnp 00:0a ff700000-ffffffff : reserved ffb80000-fffffffe : pnp 00:06 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/