From: Corey Minyard <minyard@acm.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Corey Minyard <cminyard@mvista.com>,
Werner Almesberger <wa@almesberger.net>,
Zwane Mwaikambo <zwane@holomorphy.com>,
suparna@in.ibm.com, Kenneth Sumrall <ken@mvista.com>,
linux-kernel@vger.kernel.org, lkcd-devel@lists.sourceforge.net
Subject: Re: Kexec, DMA, and SMP
Date: Mon, 17 Feb 2003 11:32:53 -0600 [thread overview]
Message-ID: <3E511CC5.5000700@acm.org> (raw)
In-Reply-To: <m1wujz2x4y.fsf@frodo.biederman.org>
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So the semantics of the shutdown method is: "You are being called at
reboot or halt time, no other processes are running or will ever run,
quiesce the device, but do nothing else". Then obviously, it's exactly
what we need, if you can get the device driver writers to implement it.
It would be very nice to have documentation on this (and the rest of the
driver model, too). The docs in the kernel don't give a big picture.
In fact, just reading the docs give you no idea what a driver model is.
Does some other source of documentation exist?
device_shutdown() claims a semaphore for some reason, though. I suspect
it's not necessary.
- -Corey
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next prev parent reply other threads:[~2003-02-17 17:23 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3E448745.9040707@mvista.com>
[not found] ` <m1isvuzjj2.fsf@frodo.biederman.org>
2003-02-08 20:18 ` Kexec, DMA, and SMP Corey Minyard
2003-02-09 18:39 ` Eric W. Biederman
2003-02-10 11:14 ` Kexec on 2.5.59 problems ? Suparna Bhattacharya
2003-02-10 17:09 ` [Fastboot] " Andy Pfiffer
2003-02-10 18:07 ` Eric W. Biederman
2003-02-11 7:21 ` Suparna Bhattacharya
2003-02-11 17:04 ` Andy Pfiffer
2003-02-11 23:46 ` Andy Pfiffer
2003-02-12 4:29 ` Eric W. Biederman
2003-02-12 22:31 ` Andy Pfiffer
2003-02-13 9:50 ` Suparna Bhattacharya
2003-02-13 15:10 ` Eric W. Biederman
2003-02-18 10:59 ` Suparna Bhattacharya
2003-02-18 15:06 ` Eric W. Biederman
2003-02-10 12:12 ` Kexec, DMA, and SMP Suparna Bhattacharya
2003-02-10 13:56 ` Corey Minyard
2003-02-10 15:07 ` Suparna Bhattacharya
2003-02-10 15:22 ` Corey Minyard
2003-02-10 17:56 ` Eric W. Biederman
2003-02-11 1:35 ` Kenneth Sumrall
2003-02-11 5:08 ` Eric W. Biederman
2003-02-11 17:09 ` Stephen Hemminger
2003-02-11 12:55 ` Suparna Bhattacharya
2003-02-11 13:40 ` Suparna Bhattacharya
2003-02-11 14:06 ` Corey Minyard
2003-02-11 14:40 ` Suparna Bhattacharya
2003-02-11 15:20 ` Corey Minyard
2003-02-12 4:28 ` Eric W. Biederman
2003-02-12 14:17 ` Corey Minyard
2003-02-12 14:51 ` Eric W. Biederman
2003-02-12 16:06 ` Corey Minyard
2003-02-13 11:13 ` Suparna Bhattacharya
2003-02-14 3:13 ` Werner Almesberger
2003-02-14 14:20 ` Corey Minyard
2003-02-14 18:10 ` Werner Almesberger
2003-02-14 18:23 ` Corey Minyard
2003-02-14 19:26 ` Zwane Mwaikambo
2003-02-14 19:44 ` Werner Almesberger
2003-02-14 20:00 ` Corey Minyard
2003-02-15 6:03 ` Eric W. Biederman
2003-02-16 16:22 ` Corey Minyard
2003-02-16 21:48 ` Eric W. Biederman
2003-02-17 4:26 ` Corey Minyard
2003-02-17 7:18 ` Eric W. Biederman
2003-02-17 17:32 ` Corey Minyard [this message]
2003-02-12 4:47 ` Suparna Bhattacharya
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