From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Shaohua Li <shaohua.li@intel.com>
Cc: linux acpi <linux-acpi@vger.kernel.org>,
pm list <linux-pm@lists.linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Alan Stern <stern@rowland.harvard.edu>
Subject: Re: [PATCH 1/5] introduce .wakeup_event ops
Date: Thu, 20 Aug 2009 08:40:51 +0100 [thread overview]
Message-ID: <20090820074050.GA30288@srcf.ucam.org> (raw)
In-Reply-To: <20090820032450.GD26357@sli10-desk.sh.intel.com>
On Thu, Aug 20, 2009 at 11:24:50AM +0800, Shaohua Li wrote:
> On Wed, Aug 19, 2009 at 07:52:10PM +0800, Matthew Garrett wrote:
> > I'm not averse to the general concept, but I'm not entirely sold on it
> > being necessary. All the hardware I'm aware of will send non-PME events
> > as a notification on a specific device. Under what circumstances will we
> > get a wakeup GPE for a non-PME device without knowing which device
> > should be woken?
> Below code is gotten from a laptop (samsung-x10), the PCIB is the PCI bridge.
> We can't guarantee the device which gets a wakeup event notification is really
> the device which invokes the wakeup event.
_L0B will only be triggered if a PME is generated, so we'll be able to
determine which device generated the wakeup by looking at the PME
registers.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2009-08-20 7:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-19 7:24 [PATCH 1/5] introduce .wakeup_event ops Shaohua Li
2009-08-19 11:52 ` Matthew Garrett
2009-08-20 3:24 ` Shaohua Li
2009-08-20 7:40 ` Matthew Garrett [this message]
2009-08-21 6:33 ` Shaohua Li
2009-08-21 9:23 ` Matthew Garrett
2009-08-24 1:50 ` Shaohua Li
2009-08-24 2:48 ` Matthew Garrett
[not found] ` <20090824082722.GA32264@srcf.ucam.org>
[not found] ` <1251103572.24336.8.camel@sli10-desk.sh.intel.com>
2009-08-24 18:49 ` Rafael J. Wysocki
2009-08-19 14:49 ` Alan Stern
2009-08-20 3:04 ` Shaohua Li
2009-08-20 14:11 ` Alan Stern
2009-08-20 14:14 ` Matthew Garrett
2009-08-20 14:38 ` Alan Stern
2009-08-20 14:42 ` Matthew Garrett
2009-08-20 15:22 ` Alan Stern
2009-08-20 19:37 ` Rafael J. Wysocki
2009-08-20 21:10 ` Alan Stern
2009-08-20 21:27 ` Rafael J. Wysocki
2009-08-21 6:46 ` Shaohua Li
2009-08-21 14:33 ` Alan Stern
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