From: Pavel Machek <pavel@ucw.cz>
To: Deepak Saxena <dsaxena@plexity.net>
Cc: linux-pm@lists.osdl.org
Subject: Re: x86: Expected system state when resumed
Date: Wed, 29 Jul 2009 17:08:17 +0200 [thread overview]
Message-ID: <20090729150817.GI1534@ucw.cz> (raw)
In-Reply-To: <20090721164542.GA30390@plexity.net>
On Tue 2009-07-21 09:45:42, Deepak Saxena wrote:
>
> I am working on getting suspend/resume working on an x86 system
> (OLPC XO-1.5) where we are implementing ACPI based suspend/resume
> using Open Firmware and what I am seeing right now is that on
> resume, we're not receiving interrupts so the system locks
> up in the suspend path when msleep() is called from the EHCI
> HCD resume code. lapic_resume() is being called so the APIC
> is being restored. I'm looking for information on what else
> Linux's expectation from the firmware when control is handed back
> before I start dumping every system register pre and post resume.
Well, acpi spec should answer that...
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
prev parent reply other threads:[~2009-07-29 15:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-21 16:45 x86: Expected system state when resumed Deepak Saxena
2009-07-21 20:48 ` Rafael J. Wysocki
2009-07-22 2:09 ` Wu Zhangjin
2009-07-22 14:17 ` Deepak Saxena
2009-07-22 14:30 ` [linux-pm] " Rafael J. Wysocki
2009-07-29 15:08 ` Pavel Machek [this message]
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