From: greg@kroah.com (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: pci config space
Date: Sat, 19 Feb 2011 21:33:19 -0800 [thread overview]
Message-ID: <20110220053319.GB10532@kroah.com> (raw)
In-Reply-To: <AANLkTikhdfZmSdTTGFoz50xAzF05_r98i3rTSCxAJ4+u@mail.gmail.com>
On Sat, Feb 19, 2011 at 03:32:51PM -0600, Asim wrote:
> Hi,
>
> While this may just be connecting the dots, I am not able to fully
> understand how pci_save_state works.
>
> I see that the pci_save_state and pci_restore_state are invoked at
> suspend and resume. This saves the PCI configuration registers during
> suspend. Are these the device registers or bridge registers?
It depends if the device is a device or a bridge :)
> Consequently, is the pci_save_state and driver suspend routine saving
> the full device state/device state exposed to PCI or PCI state ?
Yes.
Hope this helps,
greg k-h
next prev parent reply other threads:[~2011-02-20 5:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-19 21:32 pci config space Asim
2011-02-20 5:33 ` Greg KH [this message]
2011-02-20 20:27 ` Asim
-- strict thread matches above, loose matches on Subject: below --
2004-01-02 21:55 PCI " Jon Smirl
2004-01-03 0:50 ` Greg KH
2004-01-03 1:03 ` Jon Smirl
2004-01-03 1:22 ` Greg KH
2004-01-03 1:57 ` Jon Smirl
2004-01-03 2:21 ` Greg KH
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