From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Jesse Barnes <jesse.barnes@intel.com>,
Andreas Schwab <schwab@suse.de>, Len Brown <lenb@kernel.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: PCI PM: Restore standard config registers of all devices early
Date: Tue, 03 Feb 2009 09:48:47 +1100 [thread overview]
Message-ID: <1233614927.18767.121.camel@pasglop> (raw)
In-Reply-To: <alpine.LFD.2.00.0902021343280.3247@localhost.localdomain>
On Mon, 2009-02-02 at 14:05 -0800, Linus Torvalds wrote:
> Well, I don't think anybody wants to (or necessarily has the ability)
> touch ACPI internals.
>
Somebody has a rough idea of what underlying kernel support ACPI uses ?
I know from discussions with Len that it's mostly mutexes... timers
too ?
It might end up being trivial to make it safe to call early with
interrupts off with the trick you mentioned, since it's really just the
same as boot as you mentioned.. ie, it's actually safe to take mutexes
etc... since we -know- no other CPU is running and we aren't scheduling
etc...
Ben.
next prev parent reply other threads:[~2009-02-02 22:49 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200901261904.n0QJ4Q9c016709@hera.kernel.org>
2009-02-02 9:54 ` PCI PM: Restore standard config registers of all devices early Benjamin Herrenschmidt
2009-02-02 17:06 ` Linus Torvalds
2009-02-02 20:29 ` Benjamin Herrenschmidt
2009-02-02 20:41 ` Linus Torvalds
2009-02-02 21:00 ` Benjamin Herrenschmidt
2009-02-02 21:32 ` Rafael J. Wysocki
2009-02-02 20:33 ` Benjamin Herrenschmidt
2009-02-02 20:50 ` Linus Torvalds
2009-02-02 20:55 ` Linus Torvalds
2009-02-02 21:19 ` Benjamin Herrenschmidt
2009-02-02 21:39 ` Rafael J. Wysocki
2009-02-02 22:05 ` Linus Torvalds
2009-02-02 22:09 ` Linus Torvalds
2009-02-02 22:31 ` Rafael J. Wysocki
2009-02-02 23:18 ` Linus Torvalds
2009-02-02 23:45 ` Rafael J. Wysocki
2009-02-02 23:59 ` Linus Torvalds
2009-02-03 0:15 ` Rafael J. Wysocki
2009-02-03 0:28 ` Linus Torvalds
2009-02-03 1:12 ` Benjamin Herrenschmidt
2009-02-03 1:32 ` Linus Torvalds
2009-02-03 1:46 ` Benjamin Herrenschmidt
2009-02-03 3:30 ` Benjamin Herrenschmidt
2009-02-03 3:47 ` Linus Torvalds
2009-02-03 4:03 ` Benjamin Herrenschmidt
2009-02-03 6:07 ` Benjamin Herrenschmidt
2009-02-03 15:48 ` Linus Torvalds
2009-02-03 22:59 ` Benjamin Herrenschmidt
2009-02-03 23:23 ` Rafael J. Wysocki
2009-02-03 16:33 ` Jesse Barnes
2009-02-03 0:15 ` Linus Torvalds
2009-02-03 0:58 ` Benjamin Herrenschmidt
2009-02-03 3:51 ` Benjamin Herrenschmidt
2009-02-03 3:55 ` Benjamin Herrenschmidt
2009-02-03 4:09 ` Linus Torvalds
2009-02-03 4:21 ` Benjamin Herrenschmidt
2009-02-03 9:26 ` Rafael J. Wysocki
2009-02-03 17:04 ` Reworking suspend-resume sequence (was: Re: PCI PM: Restore standard config registers of all devices early) Rafael J. Wysocki
2009-02-03 17:59 ` Linus Torvalds
2009-02-03 18:31 ` Linus Torvalds
2009-02-03 18:41 ` Ingo Molnar
2009-02-03 18:32 ` Jesse Barnes
2009-02-03 18:46 ` Linus Torvalds
2009-02-03 19:03 ` Linus Torvalds
2009-02-03 19:13 ` Ingo Molnar
2009-02-03 19:38 ` Linus Torvalds
2009-02-03 19:53 ` Ingo Molnar
2009-02-03 20:04 ` Ingo Molnar
2009-02-03 20:18 ` Linus Torvalds
2009-02-03 20:57 ` Ingo Molnar
2009-02-03 21:04 ` Ingo Molnar
2009-02-03 21:12 ` Thomas Gleixner
2009-02-04 10:07 ` Russell King
2009-02-03 21:18 ` Linus Torvalds
2009-02-03 19:19 ` Linus Torvalds
2009-02-03 21:11 ` Benjamin Herrenschmidt
2009-02-03 21:53 ` Rafael J. Wysocki
2009-02-03 22:33 ` Benjamin Herrenschmidt
2009-02-03 22:44 ` Rafael J. Wysocki
2009-02-03 23:05 ` Benjamin Herrenschmidt
2009-02-03 23:18 ` Linus Torvalds
2009-02-04 0:27 ` Benjamin Herrenschmidt
2009-03-04 8:02 ` Pavel Machek
2009-03-04 23:25 ` Benjamin Herrenschmidt
2009-03-05 8:19 ` Pavel Machek
2009-03-05 19:09 ` Rafael J. Wysocki
2009-02-03 23:25 ` Rafael J. Wysocki
2009-02-04 0:46 ` Linus Torvalds
2009-02-03 21:02 ` Benjamin Herrenschmidt
2009-02-03 21:56 ` Rafael J. Wysocki
2009-02-03 17:53 ` PCI PM: Restore standard config registers of all devices early Linus Torvalds
2009-02-03 21:57 ` Rafael J. Wysocki
2009-02-02 22:48 ` Benjamin Herrenschmidt [this message]
2009-02-02 23:00 ` Rafael J. Wysocki
2009-02-03 0:23 ` Benjamin Herrenschmidt
2009-02-03 0:29 ` Rafael J. Wysocki
2009-02-03 0:44 ` Linus Torvalds
2009-02-03 1:32 ` Benjamin Herrenschmidt
2009-02-03 5:06 ` Ingo Molnar
2009-02-03 11:06 ` Peter Zijlstra
2009-02-03 12:09 ` Ingo Molnar
2009-02-02 23:49 ` Ingo Molnar
2009-02-03 22:09 ` Rafael J. Wysocki
2009-02-03 23:13 ` Linus Torvalds
2009-02-02 22:28 ` Benjamin Herrenschmidt
2009-02-02 21:07 ` Benjamin Herrenschmidt
2009-02-02 21:49 ` Rafael J. Wysocki
2009-02-02 22:15 ` Linus Torvalds
2009-02-02 22:33 ` Rafael J. Wysocki
2009-02-02 22:56 ` Rafael J. Wysocki
2009-02-03 0:11 ` Benjamin Herrenschmidt
2009-02-03 0:21 ` Linus Torvalds
2009-02-10 20:25 ` Pavel Machek
2009-02-02 22:57 ` Benjamin Herrenschmidt
2009-02-02 23:22 ` Rafael J. Wysocki
2009-02-03 1:03 ` Benjamin Herrenschmidt
2009-02-10 20:25 ` kmalloc during suspend, was " Pavel Machek
2009-02-02 17:20 ` Rafael J. Wysocki
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1233614927.18767.121.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=jesse.barnes@intel.com \
--cc=lenb@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=rjw@sisk.pl \
--cc=schwab@suse.de \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox