From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "David S. Miller" <davem@redhat.com>, <david.lang@digitalinsight.com>
Cc: <vojtech@suse.cz>, <dalecki@evision-ventures.com>,
<rgooch@ras.ucalgary.ca>, <torvalds@transmeta.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] 2.5.8 IDE 36
Date: Tue, 16 Apr 2002 18:40:22 +0100 [thread overview]
Message-ID: <20020416174022.25545@smtp.wanadoo.fr> (raw)
In-Reply-To: <20020416.100610.115916272.davem@redhat.com>
> I could be wrong, it's a 2.1.x kernel that they started with. I thought
> that was around the time the fix went in.
>
>Again, I did the fix 6 years ago, thats pre-2.0.x days
>
>EXT2 has been little-endian only with proper byte-swapping support
>across all architectures, since that time.
My understanding it that Tivo behaves like some Amiga's here
and has broken swapping of the IDE bus itself, not the ext2
filesystem.
On PPC, we still have some historical horrible macros redefinitions
in asm/ide.h to let APUS (PPC Amiga) deal with these.
Now, the problem of dealing with DMA along with the swapping is
something scary. I beleive the sanest solution that won't please
affected people is to _not_ support DMA on these broken HW ;)
Another way would be, for such broken controllers, to break the
request into 1 page max requests and let them all go through a
bounce buffer.
Ben.
next prev parent reply other threads:[~2002-04-16 17:43 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-06 1:01 Linux 2.5.8-pre2 Linus Torvalds
2002-04-06 6:59 ` Larry McVoy
2002-04-07 10:17 ` Geert Uytterhoeven
2002-04-07 10:27 ` Russell King
2002-04-07 10:42 ` Geert Uytterhoeven
2002-04-07 10:56 ` Russell King
2002-04-07 13:34 ` Russell King
2002-04-07 14:51 ` Geert Uytterhoeven
2002-04-07 10:50 ` Andrew Morton
2002-04-09 8:05 ` [PATCH] 2.5.8-pre2 IDE 29b Martin Dalecki
2002-04-10 13:14 ` [PATCH] 2.5.8-pre3 IDE 30 Martin Dalecki
2002-04-10 13:16 ` [PATCH] 2.5.8-pre3 IDE 31 Martin Dalecki
2002-04-11 13:42 ` [PATCH] 2.5.8-pre3 IDE 32 Martin Dalecki
2002-04-14 13:55 ` [PATCH] 2.5.8-pre3 IDE 33 Martin Dalecki
2002-04-15 13:45 ` [PATCH] 2.5.8 IDE 35 Martin Dalecki
2002-04-16 7:05 ` [PATCH] 2.5.8 IDE 36 Martin Dalecki
2002-04-16 8:30 ` Vojtech Pavlik
2002-04-16 7:33 ` Martin Dalecki
2002-04-16 8:43 ` Vojtech Pavlik
2002-04-16 9:19 ` David Lang
2002-04-16 8:43 ` Martin Dalecki
2002-04-16 14:14 ` Richard Gooch
2002-04-16 13:49 ` Martin Dalecki
2002-04-16 15:24 ` Vojtech Pavlik
2002-04-16 15:46 ` Linus Torvalds
2002-04-16 16:15 ` Alan Cox
2002-04-16 16:01 ` Linus Torvalds
2002-04-16 16:25 ` Alan Cox
2002-04-16 16:33 ` Padraig Brady
2002-04-16 17:42 ` Andreas Dilger
2002-04-16 17:00 ` Vojtech Pavlik
2002-04-16 17:04 ` David Lang
2002-04-16 17:00 ` David S. Miller
2002-04-16 17:09 ` David Lang
2002-04-16 17:06 ` David S. Miller
2002-04-16 17:16 ` David Lang
2002-04-17 7:44 ` Martin Dalecki
2002-04-17 9:33 ` David Lang
2002-04-16 17:40 ` Benjamin Herrenschmidt [this message]
2002-04-17 7:46 ` Martin Dalecki
2002-04-17 9:26 ` Anton Altaparmakov
2002-04-17 9:39 ` David Lang
2002-04-17 20:58 ` Mike Fedyk
2002-04-17 9:13 ` Geert Uytterhoeven
2002-04-17 1:55 ` Benjamin Herrenschmidt
2002-04-17 8:39 ` Martin Dalecki
2002-04-17 8:25 ` Geert Uytterhoeven
2002-04-16 15:43 ` Linus Torvalds
2002-04-16 15:58 ` Richard Gooch
2002-04-16 16:06 ` Linus Torvalds
2002-04-17 7:38 ` Martin Dalecki
2002-04-16 15:30 ` Linus Torvalds
2002-04-16 16:05 ` Alan Cox
2002-04-16 15:56 ` Linus Torvalds
2002-04-16 16:23 ` Alan Cox
2002-04-16 17:06 ` Vojtech Pavlik
2002-04-18 20:33 ` eNBD on loopback [was Re: [PATCH] 2.5.8 IDE 36] Pavel Machek
2002-04-18 20:39 ` Linus Torvalds
2002-04-18 10:45 ` regarding NFS Jehanzeb Hameed
2002-04-19 9:36 ` Trond Myklebust
2002-04-19 1:19 ` Jehanzeb Hameed
2002-04-19 12:24 ` Trond Myklebust
2002-04-19 2:26 ` Jehanzeb Hameed
2002-04-19 13:46 ` Trond Myklebust
2002-04-17 7:36 ` [PATCH] 2.5.8 IDE 36 Martin Dalecki
2002-04-17 9:24 ` Alan Cox
2002-04-16 22:46 ` Brian Gerst
2002-04-17 7:52 ` Martin Dalecki
2002-04-16 9:22 ` [PATCH] 2.5.8 IDE 37 Martin Dalecki
2002-04-18 9:14 ` [PATCH] 2.5.8 IDE 38 Martin Dalecki
2002-04-18 10:48 ` Russell King
2002-04-18 9:54 ` Martin Dalecki
2002-04-18 9:16 ` [PATCH] 2.5.8 IDE 37 Martin Dalecki
2002-04-18 9:22 ` [PATCH] 2.5.8 IDE 39 Martin Dalecki
-- strict thread matches above, loose matches on Subject: below --
2002-04-16 9:09 [PATCH] 2.5.8 IDE 36 Norbert Kiesel
2002-04-16 8:21 ` Martin Dalecki
2002-04-16 10:06 ` Norbert Kiesel
2002-04-16 9:20 ` Martin Dalecki
2002-04-16 10:20 ` Norbert Kiesel
2002-04-17 10:10 Petr Vandrovec
2002-04-17 10:20 ` David Lang
2002-04-19 17:17 Peter T. Breuer
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