From: Vojtech Pavlik <vojtech@suse.cz>
To: Paul Mackerras <paulus@samba.org>
Cc: Vojtech Pavlik <vojtech@suse.cz>,
Troy Benjegerdes <hozer@drgw.net>,
Martin Dalecki <dalecki@evision-ventures.com>,
Linus Torvalds <torvalds@transmeta.com>,
Andre Hedrick <andre@linuxdiskcert.org>,
Rik van Riel <riel@conectiva.com.br>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Flash Back -- kernel 2.1.111
Date: Sun, 24 Feb 2002 23:39:37 +0100 [thread overview]
Message-ID: <20020224233937.B2257@ucw.cz> (raw)
In-Reply-To: <Pine.LNX.4.10.10202232136560.5715-100000@master.linux-ide.org> <Pine.LNX.4.33.0202232152200.26469-100000@home.transmeta.com> <20020224013038.G10251@altus.drgw.net> <3C78DA19.4020401@evision-ventures.com> <20020224142902.C1682@altus.drgw.net> <20020224215422.B1706@ucw.cz> <15481.25250.869765.860828@argo.ozlabs.ibm.com> <20020224231002.B2199@ucw.cz> <15481.26697.420856.1109@argo.ozlabs.ibm.com>
In-Reply-To: <15481.26697.420856.1109@argo.ozlabs.ibm.com>; from paulus@samba.org on Mon, Feb 25, 2002 at 09:25:13AM +1100
On Mon, Feb 25, 2002 at 09:25:13AM +1100, Paul Mackerras wrote:
> Vojtech Pavlik writes:
> > On Mon, Feb 25, 2002 at 09:01:06AM +1100, Paul Mackerras wrote:
> > > We have some RS/6000 machines that have two separate PCI buses (two
> > > host bridges) that run at 33MHz and 50MHz respectively. Fortunately
> > > we also get a device tree from the firmware that tells us this.
> >
> > I really wonder why the 50 MHz one doesn't run at 66 MHz, and what
>
> Apparently the rationale is that you can put more slots on the bus
> if you run it at 50MHz than you can at 66MHz.
I see. That makes sense.
> > happens if you plug in a 66MHz non-capable card to the 50 MHz bus.
>
> The bus speed drops to 33MHz.
Interesting. I'd expect 25 myself ... then we'll definitely need two
clock values in struct pci_bus - because the hi-speed one isn't always a
double the low one - as shown by your example.
--
Vojtech Pavlik
SuSE Labs
next prev parent reply other threads:[~2002-02-24 22:40 UTC|newest]
Thread overview: 217+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-13 22:38 linux-2.5.5-pre1 Linus Torvalds
2002-02-13 23:16 ` linux-2.5.5-pre1 Matthias Andree
2002-02-14 2:30 ` linux-2.5.5-pre1 Jeff Garzik
2002-02-14 1:17 ` linux-2.5.5-pre1 Daniel Phillips
2002-02-14 1:35 ` linux-2.5.5-pre1 -= M.J. Prinsen =-
2002-02-14 9:22 ` linux-2.5.5-pre1 Allan Sandfeld
2002-02-14 5:31 ` linux-2.5.5-pre1 Linus Torvalds
2002-02-14 8:04 ` linux-2.5.5-pre1 bert hubert
2002-02-14 16:23 ` linux-2.5.5-pre1 Linus Torvalds
2002-02-14 16:53 ` linux-2.5.5-pre1 Thomas Capricelli
2002-02-14 14:08 ` [PATCH} 2.5.5-pre1 VESA fb Martin Dalecki
2002-02-14 15:16 ` Alan Cox
2002-02-14 15:32 ` Martin Dalecki
2002-02-14 20:49 ` Compile error with linux-2.5.5-pre1 & advansys scsi Gerold J. Wucherpfennig
2002-02-19 11:37 ` [PATCH] 2.5.5-pre1 IDE cleanup Martin Dalecki
2002-02-19 11:46 ` [PATCH] 2.5.5-pre1 IDE cleanup 9 Martin Dalecki
2002-02-22 10:07 ` Gerd Knorr
2002-02-22 13:50 ` Martin Dalecki
2002-02-22 10:42 ` Gadi Oxman
2002-02-22 13:45 ` Martin Dalecki
2002-02-22 14:03 ` Vojtech Pavlik
2002-02-22 14:12 ` Jeff Garzik
2002-02-22 14:20 ` Martin Dalecki
2002-02-22 14:16 ` Martin Dalecki
2002-02-22 14:38 ` Vojtech Pavlik
2002-02-22 14:46 ` Jeff Garzik
2002-02-22 14:47 ` Martin Dalecki
2002-02-22 14:58 ` Jeff Garzik
2002-02-22 15:01 ` Jeff Garzik
2002-02-22 15:12 ` Martin Dalecki
2002-02-23 8:05 ` Keith Owens
2002-02-23 14:55 ` Martin Dalecki
2002-02-22 14:16 ` Arjan van de Ven
2002-02-22 14:40 ` Vojtech Pavlik
2002-02-21 20:31 ` Gérard Roudier
2002-02-22 19:56 ` Jeff Garzik
2002-02-21 21:14 ` Gérard Roudier
2002-02-22 22:35 ` Jeff Garzik
2002-02-22 21:34 ` Vojtech Pavlik
2002-02-22 21:45 ` Greg KH
2002-02-22 21:56 ` Jeff Garzik
2002-02-22 21:59 ` Vojtech Pavlik
2002-02-22 23:06 ` Martin Dalecki
2002-02-22 14:45 ` Jeff Garzik
2002-02-21 20:39 ` Gérard Roudier
2002-02-22 19:47 ` Jeff Garzik
2002-02-21 21:01 ` Gérard Roudier
2002-02-22 20:07 ` Greg KH
2002-02-21 21:24 ` Gérard Roudier
2002-02-22 20:41 ` Greg KH
2002-02-22 21:30 ` Erik Andersen
2002-02-22 21:42 ` Greg KH
2002-02-22 21:54 ` Erik Andersen
2002-02-22 21:22 ` Erik Andersen
2002-02-21 23:17 ` Gérard Roudier
2002-02-22 22:23 ` Erik Andersen
2002-02-22 23:27 ` Rik van Riel
2002-02-22 20:09 ` Andre Hedrick
2002-02-22 20:29 ` Greg KH
2002-02-22 20:34 ` Andre Hedrick
2002-02-22 23:46 ` Vojtech Pavlik
2002-02-22 20:32 ` arjan
2002-02-22 23:44 ` Vojtech Pavlik
2002-02-23 15:35 ` [PATCH] 2.5.5 IDE cleanup 12 Martin Dalecki
2002-02-22 23:59 ` [PATCH] 2.5.5-pre1 IDE cleanup 9 Jeff Garzik
2002-02-22 19:46 ` Andre Hedrick
2002-02-22 20:06 ` Jeff Garzik
2002-02-22 20:19 ` Andre Hedrick
2002-02-22 21:47 ` Vojtech Pavlik
2002-02-22 23:02 ` Martin Dalecki
2002-02-22 23:46 ` Jeff Garzik
2002-02-23 14:53 ` Martin Dalecki
2002-02-22 21:40 ` Vojtech Pavlik
2002-02-22 21:36 ` Vojtech Pavlik
2002-02-20 10:49 ` [PATCH] 2.5.5-pre1 IDE cleanup 10 Martin Dalecki
2002-02-21 9:39 ` [PATCH] 2.5.5 IDE cleanup 11 Martin Dalecki
2002-02-21 10:53 ` Jeff Garzik
2002-02-21 11:06 ` Andre Hedrick
2002-02-21 17:27 ` Martin Dalecki
2002-02-21 17:52 ` Alan Cox
2002-02-21 17:57 ` Martin Dalecki
2002-02-21 18:14 ` Alan Cox
2002-02-21 18:44 ` Martin Dalecki
2002-02-22 15:51 ` Pavel Machek
2002-02-21 13:59 ` Alan Cox
2002-02-21 17:32 ` Martin Dalecki
2002-02-21 17:50 ` Alan Cox
2002-02-21 18:17 ` Martin Dalecki
2002-02-21 21:24 ` Andre Hedrick
2002-02-21 21:30 ` Andre Hedrick
2002-02-22 9:25 ` Flash Back -- kernel 2.1.111 Andre Hedrick
2002-02-22 10:08 ` Rik van Riel
2002-02-22 10:09 ` Jens Axboe
2002-02-22 17:06 ` Linus Torvalds
2002-02-22 18:58 ` Andre Hedrick
2002-02-23 17:56 ` Linus Torvalds
2002-02-24 4:42 ` Andre Hedrick
2002-02-24 5:38 ` Andre Hedrick
2002-02-24 6:01 ` Linus Torvalds
2002-02-24 7:30 ` Troy Benjegerdes
2002-02-24 12:18 ` Martin Dalecki
2002-02-24 20:29 ` Troy Benjegerdes
2002-02-24 20:32 ` Martin Dalecki
2002-02-24 21:15 ` Alan Cox
2002-02-24 21:11 ` Martin Dalecki
2002-02-24 21:31 ` Alan Cox
2002-02-24 21:19 ` Martin Dalecki
2002-02-24 21:25 ` nick
2002-02-24 21:32 ` Rik van Riel
2002-02-24 21:42 ` Vojtech Pavlik
2002-02-24 21:47 ` nick
2002-02-24 21:41 ` Vojtech Pavlik
2002-02-24 21:47 ` Rik van Riel
2002-02-24 21:31 ` Jeff Garzik
2002-02-24 21:40 ` Vojtech Pavlik
2002-02-24 21:46 ` Jeff Garzik
2002-02-24 21:50 ` Vojtech Pavlik
2002-02-24 22:18 ` David S. Miller
2002-02-24 20:54 ` Vojtech Pavlik
2002-02-24 21:19 ` Troy Benjegerdes
2002-02-24 21:37 ` Vojtech Pavlik
2002-02-24 22:03 ` Paul Mackerras
2002-02-24 22:08 ` Vojtech Pavlik
2002-02-24 22:23 ` Paul Mackerras
2002-02-24 22:37 ` Troy Benjegerdes
2002-02-24 23:08 ` Chris Wedgwood
2002-02-24 22:01 ` Paul Mackerras
2002-02-24 22:10 ` Vojtech Pavlik
2002-02-24 22:25 ` Paul Mackerras
2002-02-24 22:27 ` Andre Hedrick
2002-02-24 22:48 ` Vojtech Pavlik
2002-02-25 8:49 ` Martin Dalecki
2002-02-24 22:39 ` Vojtech Pavlik [this message]
2002-02-24 22:44 ` David S. Miller
2002-02-24 22:51 ` Vojtech Pavlik
2002-02-24 22:59 ` Troy Benjegerdes
2002-02-24 23:02 ` Vojtech Pavlik
2002-02-24 23:26 ` Paul Mackerras
2002-02-27 15:59 ` Remco Post
2002-02-24 23:12 ` Chris Wedgwood
2002-02-24 23:10 ` Chris Wedgwood
2002-02-24 23:01 ` Alan Cox
2002-02-24 20:52 ` Vojtech Pavlik
2002-02-24 23:04 ` Chris Wedgwood
2002-02-24 9:27 ` Andre Hedrick
2002-02-24 12:28 ` [PATCH] IDE clean 12 3rd attempt Martin Dalecki
2002-02-24 16:14 ` Greg KH
2002-03-08 15:46 ` [PATCH] 2.5.6 IDE 18 Martin Dalecki
2002-03-08 16:42 ` Richard Gooch
2002-03-09 12:56 ` Martin Dalecki
2002-02-24 10:23 ` Flash Back -- kernel 2.1.111 Vojtech Pavlik
2002-02-24 12:14 ` Martin Dalecki
2002-03-11 12:40 ` [PATCH] 2.5.6 IDE 19 Martin Dalecki
2002-03-11 15:19 ` Alan Cox
2002-03-11 16:23 ` Martin Dalecki
2002-03-11 16:58 ` Alan Cox
2002-03-11 17:03 ` Martin Dalecki
2002-03-11 17:10 ` Charles Cazabon
2002-03-11 17:30 ` Alan Cox
2002-03-11 18:23 ` Martin Dalecki
2002-03-11 19:41 ` Alan Cox
2002-03-11 18:00 ` Andre Hedrick
2002-03-11 19:03 ` [PATCH] 2.5.6 IDE 19, return of taskfile Gunther Mayer
2002-03-11 19:14 ` Andre Hedrick
2002-03-11 19:22 ` Gunther Mayer
2002-03-11 19:23 ` Martin Dalecki
2002-03-12 9:52 ` Zwane Mwaikambo
2002-03-11 19:47 ` Alan Cox
2002-03-11 19:38 ` Alexander Viro
2002-03-11 19:42 ` Andre Hedrick
2002-03-11 19:55 ` Alexander Viro
2002-03-11 20:02 ` Alan Cox
2002-03-13 12:55 ` Pavel Machek
2002-03-15 17:49 ` john slee
2002-03-16 2:26 ` Erik Andersen
2002-03-11 19:39 ` Andre Hedrick
2002-03-12 1:48 ` [PATCH] 2.5.6 IDE 19 Pavel Machek
2002-03-11 21:50 ` Barry K. Nathan
2002-03-12 1:44 ` Pavel Machek
2002-03-11 17:42 ` Andre Hedrick
2002-03-11 18:08 ` Alan Cox
2002-03-11 18:05 ` Anton Altaparmakov
2002-03-11 19:39 ` Alan Cox
2002-03-11 22:02 ` Vojtech Pavlik
2002-03-11 22:01 ` Vojtech Pavlik
2002-03-12 8:58 ` Joachim Breuer
2002-03-11 22:06 ` Anton Altaparmakov
2002-03-11 22:10 ` Anton Altaparmakov
2002-03-11 18:06 ` Wayne Whitney
2002-03-11 18:27 ` Andre Hedrick
2002-03-11 18:51 ` Martin Dalecki
2002-03-11 19:02 ` Andre Hedrick
2002-03-11 19:12 ` Martin Dalecki
2002-03-11 19:24 ` Andre Hedrick
2002-03-11 19:30 ` Martin Dalecki
2002-03-11 19:35 ` Andre Hedrick
2002-03-11 19:51 ` Davide Libenzi
2002-03-11 19:51 ` Andre Hedrick
2002-03-11 21:19 ` Rik van Riel
2002-03-11 22:44 ` Davide Libenzi
2002-03-13 19:19 ` David Ford
2002-03-12 0:00 ` Jos Hulzink
2002-03-12 5:17 ` Andre Hedrick
2002-03-11 19:27 ` Russell King
2002-03-11 17:53 ` Arjan van de Ven
2002-03-11 19:04 ` Martin Dalecki
2002-03-11 21:02 ` Rik van Riel
2002-03-11 22:44 ` Alan Cox
2002-03-12 0:47 ` Bill Davidsen
2002-03-12 0:28 ` Pavel Machek
2002-03-13 14:14 ` [PATCH] IDE 21 Martin Dalecki
2002-03-13 17:42 ` Vojtech Pavlik
2002-02-22 10:12 ` Flash Back -- kernel 2.1.111 Pedro M. Rodrigues
2002-02-22 19:03 ` Andre Hedrick
2002-02-22 19:56 ` Alan Cox
2002-02-22 19:38 ` Andre Hedrick
2002-02-22 10:37 ` David S. Miller
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