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From: Karol Kozimor <sziwan@hell.org.pl>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Len Brown <len.brown@intel.com>, Andi Kleen <ak@suse.de>,
	"Li, Shaohua" <shaohua.li@intel.com>,
	ACPI-DEV <acpi-devel@lists.sourceforge.net>,
	lkml <linux-kernel@vger.kernel.org>,
	greg@kroah.com, Pavel Machek <pavel@suse.cz>
Subject: Re: [ACPI] [Proposal]Another way to save/restore PCI config space for suspend/resume
Date: Tue, 26 Oct 2004 11:06:29 +0200	[thread overview]
Message-ID: <20041026090629.GA17454@hell.org.pl> (raw)
In-Reply-To: <1098780150.2789.19.camel@laptop.fenrus.org>

Thus wrote Arjan van de Ven:
> > What this comes down to is that extended config space is device-specific.
> > Generic solutions will fail.  Only device drivers will work.
> > 
> > If there are no drivers for PCI bridges to properly save/restore
> > their config space, then should create them, even if this is all the 
> > drivers do.
> note that by default, if there is no driver, the first 64 bytes of
> config space are saved/restored.

That's not enough -- some devices with no drivers (think LPC bridges) might
need more (see http://bugme.osdl.org/show_bug.cgi?id=3609).
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan@hell.org.pl

  reply	other threads:[~2004-10-26  9:06 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-26  4:50 [Proposal]Another way to save/restore PCI config space for suspend/resume Li Shaohua
2004-10-26  5:11 ` [ACPI] " Andi Kleen
2004-10-26  6:11   ` Len Brown
2004-10-26  8:42     ` Arjan van de Ven
2004-10-26  9:06       ` Karol Kozimor [this message]
2004-10-26  9:57       ` Matthew Garrett
2004-10-26  9:09   ` Li Shaohua
2004-10-26  9:21 ` Pavel Machek
2004-10-27  0:50   ` [ACPI] " Li Shaohua
2004-10-27  1:32 ` [ACPI] " Hiroshi 2 Itoh
2004-10-27  1:55   ` Li Shaohua
2004-10-27  2:26     ` Hiroshi 2 Itoh
2004-10-27 20:14 ` Rajesh Shah

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