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From: Greg KH <greg@kroah.com>
To: Shaohua Li <shaohua.li@intel.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
	tom.l.nguyen@intel.com, akpm <akpm@osdl.org>
Subject: Re: [RFC/PATCH]reconfigure MSI registers after resume
Date: Wed, 31 Aug 2005 14:43:34 -0700	[thread overview]
Message-ID: <20050831214334.GF20443@kroah.com> (raw)
In-Reply-To: <1124343346.6272.8.camel@linux-hp.sh.intel.com>

On Thu, Aug 18, 2005 at 01:35:46PM +0800, Shaohua Li wrote:
> Hi,
> It appears pci_enable_msi doesn't reconfigure msi registers if it
> successfully look up a msi for a device. It assumes the data and address
> registers unchanged after calling pci_disable_msi. But this isn't always
> true, such as in a suspend/resume circle. In my test system, the
> registers unsurprised become zero after a S3 resume. This patch fixes my
> problem, please look at it. MSIX might have the same issue, but I
> haven't taken a close look.

Tom, any comments on this?

thanks,

greg k-h

  reply	other threads:[~2005-09-01  0:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-18  5:35 [RFC/PATCH]reconfigure MSI registers after resume Shaohua Li
2005-08-31 21:43 ` Greg KH [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-09-01 15:20 Nguyen, Tom L
2005-09-01 19:31 ` Andrew Morton
2005-09-02  1:03 ` Shaohua Li
2005-09-01 20:01 Nguyen, Tom L
2005-09-01 20:10 ` Andrew Morton
2005-09-01 20:59 Nguyen, Tom L
2005-09-02  5:38 ` Greg KH
2005-09-02 19:58 ` Rajesh Shah
2005-09-02 22:00   ` Andrew Morton
2005-09-02 18:51 Nguyen, Tom L

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