From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
To: Grant Grundler <grundler@cup.hp.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linus Torvalds <torvalds@transmeta.com>,
Paul Mackerras <paulus@samba.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
davidm@hpl.hp.com, linux-kernel@vger.kernel.org
Subject: Re: [patch 2.5] PCI: allow alternative methods for probing the BARs
Date: Wed, 8 Jan 2003 17:47:11 +0300 [thread overview]
Message-ID: <20030108174711.A15896@jurassic.park.msu.ru> (raw)
In-Reply-To: <20030107201700.GB32722@cup.hp.com>; from grundler@cup.hp.com on Tue, Jan 07, 2003 at 12:17:00PM -0800
On Tue, Jan 07, 2003 at 12:17:00PM -0800, Grant Grundler wrote:
> BTW, please don't equate PCI controller instance number with PCI Domain.
I agree, it's quite confusing. However, I don't think that the PCI spec
defines "PCI controller" or "PCI domain" terms, it's pretty much
implementation specific.
Assuming that each PCI controller can handle up to 256 bridged buses,
the unique PCI controller index and PCI bus number is all that userspace
needs to know in order to properly identify devices in the system.
> Current parisc platforms implement one PCI address space for each SBA
> (System Bus Adapter). HP ZX1 (IA64) platforms are based on parisc designs.
> Each SBA can have something like 8 or 16 PCI controllers below it.
It's somewhat similar to new alpha-ev7 systems: it can have 1 I/O
controller per CPU where each I/O controller has a 4x AGP bus and 3
PCI/PCI-X buses. However, each of these buses has its own address
space and IOMMU.
Ivan.
next prev parent reply other threads:[~2003-01-08 14:41 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-19 21:37 PATCH 2.5.x disable BAR when sizing Grant Grundler
2002-12-20 2:54 ` Alan Cox
2002-12-20 2:27 ` David Mosberger
2002-12-20 6:05 ` Linus Torvalds
2002-12-20 19:50 ` Grant Grundler
2002-12-20 20:14 ` Linus Torvalds
2002-12-20 21:22 ` Grant Grundler
2002-12-21 18:34 ` Maciej W. Rozycki
2002-12-20 20:37 ` Richard B. Johnson
2002-12-20 21:29 ` Grant Grundler
2002-12-20 5:57 ` Linus Torvalds
2002-12-20 9:42 ` David Mosberger
2002-12-20 12:53 ` Ivan Kokshaysky
2002-12-20 17:05 ` Linus Torvalds
2002-12-20 18:26 ` David Mosberger
2002-12-20 19:28 ` Linus Torvalds
2002-12-21 22:06 ` Eric W. Biederman
2002-12-21 22:44 ` Linus Torvalds
2002-12-22 7:15 ` Paul Mackerras
2002-12-22 15:03 ` Benjamin Herrenschmidt
2002-12-22 19:21 ` Ivan Kokshaysky
2002-12-23 0:29 ` Paul Mackerras
2002-12-23 15:26 ` Ivan Kokshaysky
2003-01-05 12:37 ` [patch 2.5] PCI: allow alternative methods for probing the BARs Ivan Kokshaysky
2003-01-06 0:29 ` Anton Blanchard
2003-01-06 4:14 ` Linus Torvalds
2003-01-06 5:22 ` Eric W. Biederman
2003-01-06 10:31 ` Benjamin Herrenschmidt
2003-01-06 11:32 ` Andrew Walrond
2003-01-06 22:01 ` Grant Grundler
2003-01-06 19:45 ` Grant Grundler
2003-01-07 17:05 ` Ivan Kokshaysky
2003-01-07 17:46 ` Linus Torvalds
2003-01-07 20:17 ` Grant Grundler
2003-01-08 14:47 ` Ivan Kokshaysky [this message]
2003-01-08 22:34 ` Grant Grundler
2003-01-06 15:33 ` Ivan Kokshaysky
2003-01-06 21:52 ` Grant Grundler
2003-01-06 23:19 ` Linus Torvalds
2003-01-07 0:13 ` Grant Grundler
2003-01-07 12:33 ` Alan Cox
2003-01-07 17:27 ` Ivan Kokshaysky
2003-01-07 18:46 ` Alan Cox
2003-01-07 17:44 ` Linus Torvalds
2003-01-08 16:55 ` Ivan Kokshaysky
2003-01-09 17:46 ` [patch 2.5] 2-pass PCI probing, generic part Ivan Kokshaysky
2003-01-09 17:52 ` Benjamin Herrenschmidt
2003-01-09 22:09 ` Ivan Kokshaysky
2003-01-09 22:16 ` Linus Torvalds
2003-01-09 22:26 ` Benjamin Herrenschmidt
2003-01-10 3:49 ` Alan Cox
2003-01-09 23:19 ` Ivan Kokshaysky
2003-01-09 23:35 ` Linus Torvalds
2003-01-10 1:09 ` Grant Grundler
2003-01-10 7:56 ` Eric W. Biederman
2003-01-10 19:00 ` Grant Grundler
2003-01-10 21:42 ` Ivan Kokshaysky
2003-01-10 23:07 ` Grant Grundler
2003-01-11 19:39 ` Scott Murray
2003-01-12 7:19 ` Greg KH
2003-01-13 6:28 ` Scott Murray
2003-01-10 13:35 ` Ivan Kokshaysky
2003-01-14 16:39 ` Ivan Kokshaysky
2003-01-09 18:36 ` David Mosberger
2003-01-09 19:52 ` Grant Grundler
2003-01-09 22:40 ` Ivan Kokshaysky
2003-01-09 17:48 ` [patch 2.5] 2-pass PCI probing, hotplug changes Ivan Kokshaysky
2003-01-09 17:51 ` [patch 2.5] 2-pass PCI probing, i386 USB quirk Ivan Kokshaysky
2003-01-07 17:12 ` [patch 2.5] PCI: allow alternative methods for probing the BARs Ivan Kokshaysky
2003-01-07 17:06 ` Ivan Kokshaysky
2002-12-22 19:51 ` PATCH 2.5.x disable BAR when sizing Linus Torvalds
2002-12-22 19:57 ` Eric W. Biederman
2002-12-22 10:38 ` Eric W. Biederman
2002-12-22 18:39 ` Ivan Kokshaysky
2002-12-22 19:47 ` Eric W. Biederman
2002-12-22 21:05 ` Ivan Kokshaysky
2002-12-20 18:50 ` Ivan Kokshaysky
2002-12-20 19:11 ` Linus Torvalds
2003-01-06 10:31 [patch 2.5] PCI: allow alternative methods for probing the BARs Benjamin Herrenschmidt
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