From: David Brownell <david-b@pacbell.net>
To: linux-pm@lists.osdl.org
Cc: Fabrice Gautier <Fabrice_Gautier@sdesigns.com>
Subject: Re: A reference implementation of PCI suspend/resume?
Date: Sun, 15 May 2005 21:53:54 -0700 [thread overview]
Message-ID: <200505152153.54651.david-b@pacbell.net> (raw)
In-Reply-To: <9F77D654ED40B74CA79E5A60B97A087B0310DCD4@sd-exchange.sdesigns.com>
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On Friday 13 May 2005 10:06 pm, Fabrice Gautier wrote:
> The way I understand the PCI spec is: if you suspend a PCI device, its IRQ
> should be disabled. If an IRQ come from this device anyway (in violation of
> the spec) then the driver for this device should handle it so you should NOT
> unregister its irq_handler.
There's PCI ... and PCI with PM capabilities. That rule about only
issuing PME transactions while suspended can only apply in the latter
case. That is, not all PCI devices support the PCI PM rules; drivers
may need to help the hardware.
- Dave
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next prev parent reply other threads:[~2005-05-16 4:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-14 5:06 A reference implementation of PCI suspend/resume? Fabrice Gautier
2005-05-16 4:53 ` David Brownell [this message]
2005-05-16 8:55 ` Shaohua Li
2005-05-16 20:16 ` Adam Belay
2005-05-16 20:56 ` Rafael J. Wysocki
2005-05-16 21:19 ` Jordan Crouse
2005-05-17 0:26 ` David Brownell
2005-05-17 9:10 ` Rafael J. Wysocki
2005-05-17 18:35 ` David Brownell
2005-05-17 19:28 ` Rafael J. Wysocki
2005-05-18 1:26 ` Adam Belay
2005-05-18 17:40 ` Rafael J. Wysocki
2005-05-18 18:32 ` Alan Stern
-- strict thread matches above, loose matches on Subject: below --
2005-05-16 19:02 Fabrice Gautier
2005-05-16 19:39 ` David Brownell
2005-05-12 1:24 Shaohua Li
2005-05-12 6:21 ` Adam Belay
2005-05-12 7:03 ` Shaohua Li
2005-05-27 6:49 ` Shaohua Li
2005-05-27 7:20 ` Pavel Machek
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