From: "H. Peter Anvin" <hpa@zytor.com>
To: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Yinghai Lu <yinghai.lu@oracle.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Graham Ramsey <ramsey.graham@ntlworld.com>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
Robert Richter <robert.richter@amd.com>,
Harald Welte <HaraldWelte@viatech.com>,
Joseph Chan <JosephChan@via.com.tw>, Jiri Slaby <jslaby@suse.cz>,
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>,
Andrew Morton <akpm@linux-foundation.org>,
Dominik Brodowski <linux@dominikbrodowski.net>
Subject: Re: [PATCH -v2] x86, pci: Handle fallout pci devices with peer root bus
Date: Mon, 14 Jun 2010 14:10:20 -0700 [thread overview]
Message-ID: <4C169ABC.1090406@zytor.com> (raw)
In-Reply-To: <201006141420.15799.bjorn.helgaas@hp.com>
On 06/14/2010 01:20 PM, Bjorn Helgaas wrote:
>
> OK, but Graham's system doesn't have anything resembling a PCI-to-PCI
> bridge leading to bus 80. So while I agree that in an ideal world,
> HT/PCI host bridges might always look like PCI-to-PCI bridges, it
> seems this is not the case in practice.
>
Invisible PCI bridges have been known to occur in pure PCI space, too.
> Yes, absolutely. My point is that what the HT spec means by "host bridge"
> is not the same as what the PCI spec and Linux mean by "PCI host bridge".
Actually, they're *exactly* the same thing.
-hpa
next prev parent reply other threads:[~2010-06-14 21:11 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-19 15:13 x86/pci Oops with CONFIG_SND_HDA_INTEL Graham Ramsey
2010-05-19 16:44 ` Bjorn Helgaas
2010-05-19 17:16 ` Graham Ramsey
2010-05-19 18:01 ` Yinghai
2010-05-19 22:47 ` Graham Ramsey
2010-05-20 0:03 ` Yinghai
2010-05-20 0:22 ` Jesse Barnes
2010-05-20 0:36 ` Yinghai
2010-05-20 17:08 ` [Bug 16007] " Bjorn Helgaas
2010-06-02 16:58 ` Bjorn Helgaas
2010-06-11 21:49 ` Bjorn Helgaas
2010-06-11 22:08 ` Yinghai Lu
2010-06-11 23:06 ` Yinghai Lu
2010-06-14 14:18 ` Bjorn Helgaas
2010-06-14 17:47 ` [PATCH -v2] x86, pci: Handle fallout pci devices with peer root bus Yinghai Lu
2010-06-14 18:14 ` Jesse Barnes
2010-06-14 18:22 ` Yinghai Lu
2010-06-14 18:34 ` Bjorn Helgaas
2010-06-14 18:39 ` H. Peter Anvin
2010-06-14 18:55 ` Yinghai Lu
2010-06-14 20:00 ` Bjorn Helgaas
2010-06-14 20:08 ` H. Peter Anvin
2010-06-14 20:20 ` Bjorn Helgaas
2010-06-14 21:10 ` H. Peter Anvin [this message]
2010-06-15 1:49 ` Bjorn Helgaas
2010-06-15 1:56 ` H. Peter Anvin
2010-06-15 15:30 ` Bjorn Helgaas
2010-06-14 19:43 ` Bjorn Helgaas
2010-06-21 17:28 ` [Bug 16007] x86/pci Oops with CONFIG_SND_HDA_INTEL Bjorn Helgaas
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