From: Greg KH <greg@kroah.com>
To: "Nguyen, Tom L" <tom.l.nguyen@intel.com>
Cc: Andrew Morton <akpm@osdl.org>,
"Li, Shaohua" <shaohua.li@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC/PATCH]reconfigure MSI registers after resume
Date: Thu, 1 Sep 2005 22:38:23 -0700 [thread overview]
Message-ID: <20050902053823.GA10287@kroah.com> (raw)
In-Reply-To: <C7AB9DA4D0B1F344BF2489FA165E502409A45B38@orsmsx404.amr.corp.intel.com>
On Thu, Sep 01, 2005 at 01:59:32PM -0700, Nguyen, Tom L wrote:
> On Thursday, September 01, 2005 1:10 PM Andrew Morton wrote:
> >>
> >> On Thursday, September 01, 2005 12:32 PM Andrew Morton wrote:
> >> > So what is the alternative to Shaohua's fix? Restore all the msi
> >> > registers on resume?
> >>
> >> Yes, the PCIe port bus driver, for example, did that.
> >>
>
> > So you're saying that each individual driver which uses MSI is
> responsible
> > for the restore?
> Yes.
>
> > Is it not possible to do this in some single centralized place?
> Existing pci_save_state(dev)/pci_restore_state(dev) covers only 64 bytes
> of PCI header. One solution is to extend these APIs to cover up to 256
> bytes. What do you think?
Will that solve this issue? I need to dig up my PCI spec to see if that
will still work properly on older pci devices...
thanks,
greg k-h
next prev parent reply other threads:[~2005-09-02 5:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-01 20:59 [RFC/PATCH]reconfigure MSI registers after resume Nguyen, Tom L
2005-09-02 5:38 ` Greg KH [this message]
2005-09-02 19:58 ` Rajesh Shah
2005-09-02 22:00 ` Andrew Morton
-- strict thread matches above, loose matches on Subject: below --
2005-09-02 18:51 Nguyen, Tom L
2005-09-01 20:01 Nguyen, Tom L
2005-09-01 20:10 ` Andrew Morton
2005-09-01 15:20 Nguyen, Tom L
2005-09-01 19:31 ` Andrew Morton
2005-09-02 1:03 ` Shaohua Li
2005-08-18 5:35 Shaohua Li
2005-08-31 21:43 ` Greg KH
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