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From: Pavel Machek <pavel@ucw.cz>
To: Shaohua Li <shaohua.li@intel.com>
Cc: linux-pm <linux-pm@lists.osdl.org>
Subject: Re: A reference implementation of PCI suspend/resume?
Date: Fri, 27 May 2005 09:20:12 +0200	[thread overview]
Message-ID: <20050527072012.GA1922@elf.ucw.cz> (raw)
In-Reply-To: <1117176553.3925.6.camel@linux-hp.sh.intel.com>

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Hi!

> > Currently many drivers don't call 
> > free_irq/request_irq/pci_disable_device, which makes unexpected 
> > interrupt occur and even break suspend/resume in some systems. The 
> > reason is we disable PIC/IOAPIC/irq router very later (they are
> > treated 
> > as a sysdev), so there is a window between when a device is suspend
> > and 
> > when its PIC/IOAPIC/irq router pin are disabled. The ideal way is 
> > PIC/IOAPIC/irq router's pins are disabled soon after no device is 
> > referencing them. I'm now working on disabling irq router if no 
> > reference on it, but first I'd like to know your opinions about the 
> > proposal (the reference .suspend/.resume implementation).
> Hi Pavel,
> Could this be put into your tree? We should fix many PCI drivers, this
> possibly will help us.

Thanks, applied.
								Pavel

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  reply	other threads:[~2005-05-27  7:20 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-12  1:24 A reference implementation of PCI suspend/resume? 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 [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-05-14  5:06 Fabrice Gautier
2005-05-16  4:53 ` David Brownell
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
2005-05-16 19:02 Fabrice Gautier
2005-05-16 19:39 ` David Brownell

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