From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: <linux-kernel@vger.kernel.org>, Patrick Mochel <mochel@osdl.org>
Subject: Re: [RFC] New Driver Model for 2.5
Date: Tue, 23 Oct 2001 12:54:49 +0200 [thread overview]
Message-ID: <20011023105449.8455@smtp.adsl.oleane.com> (raw)
In-Reply-To: <E15vpU0-00045L-00@the-village.bc.nu>
In-Reply-To: <E15vpU0-00045L-00@the-village.bc.nu>
>I'd very much like this one to be two pass, with the second pass occuring
>after interrupts are disabled. There are some horrible cases to try and
>handle otherwise (like devices that like to jam the irq line high).
>
>Ditto on return from suspend where some devices also like to float the irq
>high as you take them over (eg USB on my Palmax). From comments Ben made
>ages back I believe ppc has similar issues if not worse
Well, the idea here was to disable them between the second and third
pass. Device that can completely suspend with interrupts enabled can
do it at the end of step 2, while more broken devices can do it at
step 3. It might be semantically more clear to actually consider step
2 as exclusively "block io & save state", in which case, breaking up
the "suspend" state into 2 separate states with and without interrupt
makes sense. We just didn't fell that was necessary.
Ben.
next prev parent reply other threads:[~2001-10-23 10:55 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-19 23:33 [RFC] New Driver Model for 2.5 Benjamin Herrenschmidt
2001-10-20 0:09 ` Linus Torvalds
2001-10-20 9:28 ` Benjamin Herrenschmidt
2001-10-21 17:09 ` Pavel Machek
2001-10-23 0:19 ` Patrick Mochel
2001-10-23 0:31 ` Alan Cox
2001-10-23 0:29 ` Patrick Mochel
2001-10-23 7:53 ` Alan Cox
2001-10-23 15:10 ` Jonathan Lundell
2001-10-23 15:49 ` Alan Cox
2001-10-23 20:22 ` Benjamin Herrenschmidt
2001-10-23 20:54 ` Alan Cox
2001-10-24 0:26 ` Benjamin Herrenschmidt
2001-10-24 9:57 ` Alan Cox
2001-10-24 10:34 ` Benjamin Herrenschmidt
2001-10-24 10:54 ` Alan Cox
2001-10-24 13:04 ` Benjamin Herrenschmidt
2001-10-24 13:25 ` Alan Cox
2001-10-24 16:19 ` Linus Torvalds
2001-10-24 16:36 ` Michael H. Warfield
2001-10-24 16:45 ` Linus Torvalds
2001-10-24 22:48 ` Alan Cox
2001-10-24 16:15 ` Linus Torvalds
2001-10-24 16:46 ` Xavier Bestel
2001-10-24 16:54 ` Patrick Mochel
2001-10-24 16:55 ` Linus Torvalds
2001-10-24 22:45 ` Alan Cox
2001-10-24 17:33 ` Benjamin Herrenschmidt
2001-10-24 22:41 ` Alan Cox
2001-10-24 22:41 ` Linus Torvalds
2001-10-25 7:58 ` Benjamin Herrenschmidt
2001-10-25 12:22 ` Alan Cox
2001-10-25 14:57 ` Benjamin Herrenschmidt
2001-10-25 8:03 ` Benjamin Herrenschmidt
2001-10-25 8:09 ` Benjamin Herrenschmidt
2001-10-25 12:20 ` Alan Cox
2001-10-25 21:47 ` Pavel Machek
2001-10-24 22:50 ` Alan Cox
2001-10-25 4:14 ` Linus Torvalds
2001-10-25 12:42 ` Alan Cox
2001-10-25 21:52 ` Xavier Bestel
2001-10-25 23:53 ` Benjamin Herrenschmidt
2001-10-25 23:53 ` Alan Cox
2001-10-26 11:35 ` Helge Hafting
2001-10-26 12:38 ` Alan Cox
2001-10-25 8:27 ` Rob Turk
2001-10-25 10:01 ` Benjamin Herrenschmidt
2001-10-25 10:02 ` Helge Hafting
2001-10-25 14:20 ` Victor Yodaiken
2001-10-25 14:44 ` Jeff Garzik
2001-10-25 14:45 ` Jeff Garzik
2001-10-25 15:22 ` Rob Turk
2001-10-25 15:44 ` Jonathan Lundell
2001-10-25 16:26 ` David Lang
2001-10-25 21:59 ` Pavel Machek
2001-10-25 21:32 ` Rob Turk
2001-10-24 17:01 ` Mike Anderson
2001-10-25 9:02 ` Eric W. Biederman
2001-10-25 9:29 ` Linus Torvalds
2001-10-25 9:47 ` Benjamin Herrenschmidt
2001-10-25 10:11 ` Eric W. Biederman
2001-10-25 10:59 ` Linus Torvalds
2001-10-24 15:18 ` Jonathan Lundell
2001-10-24 15:41 ` Linus Torvalds
2001-10-24 15:59 ` Alan Cox
2001-10-24 15:56 ` Linus Torvalds
2001-10-23 9:44 ` Pavel Machek
2001-10-23 11:03 ` Benjamin Herrenschmidt
2001-10-23 11:49 ` Benjamin Herrenschmidt
2001-10-23 10:54 ` Benjamin Herrenschmidt [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-10-24 17:56 Grover, Andrew
2001-10-24 18:45 ` Benjamin Herrenschmidt
2001-10-19 21:43 Grover, Andrew
2001-10-19 17:01 Kevin Easton
2001-10-19 18:40 ` Patrick Mochel
2001-10-17 23:52 Patrick Mochel
2001-10-18 6:23 ` Jeff Garzik
2001-10-18 12:13 ` Benjamin Herrenschmidt
2001-10-18 16:19 ` Patrick Mochel
2001-10-18 17:38 ` Tim Jansen
2001-10-18 22:06 ` Benjamin Herrenschmidt
2001-10-19 17:09 ` Kai Henningsen
2001-10-18 22:10 ` Kai Henningsen
2001-10-19 18:26 ` Patrick Mochel
2001-10-19 19:02 ` Tim Jansen
2001-10-19 19:21 ` Mike Fedyk
2001-10-19 20:07 ` Tim Jansen
2001-10-19 20:24 ` Mike Fedyk
2001-10-19 22:25 ` Tim Jansen
2001-10-20 13:47 ` Kai Henningsen
2001-10-20 1:41 ` john slee
2001-10-20 13:52 ` Kai Henningsen
2001-10-22 11:02 ` Padraig Brady
2001-10-27 11:01 ` Kai Henningsen
2001-10-19 7:57 ` Henning P. Schmiedehausen
2001-10-19 8:09 ` Jeff Garzik
2001-10-19 8:31 ` Keith Owens
2001-10-19 8:43 ` Jeff Garzik
2001-10-19 18:50 ` Tim Jansen
2001-10-19 15:21 ` Taral
2001-10-19 23:30 ` Benjamin Herrenschmidt
2001-10-19 23:54 ` Benjamin Herrenschmidt
2001-10-18 15:17 ` Patrick Mochel
2001-10-18 16:08 ` Taral
2001-10-18 16:52 ` Jonathan Lundell
2001-10-18 17:38 ` Patrick Mochel
2001-10-18 17:41 ` Patrick Mochel
2001-10-18 18:28 ` Jonathan Lundell
2001-10-18 19:49 ` Patrick Mochel
2001-10-18 20:40 ` Jeff Garzik
2001-10-18 21:32 ` John Alvord
2001-10-18 22:23 ` Benjamin Herrenschmidt
2001-10-18 22:26 ` Jeff Garzik
2001-10-18 22:18 ` Benjamin Herrenschmidt
2001-10-18 23:30 ` Patrick Mochel
2001-10-18 23:44 ` Benjamin Herrenschmidt
2001-10-18 23:52 ` Jeff Garzik
[not found] ` <3BCF3941.D4B79FE1@mandrakesoft.com>
2001-10-19 17:12 ` Jonathan Lundell
2001-10-18 17:05 ` Jonathan Corbet
2001-10-18 17:33 ` Patrick Mochel
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