linux-kernel - Re: [PATCH] stop x86 ->sysdata abuse; introduce pci

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Message-ID: <20070604232736.GA11981@linux-os.sc.intel.com>
Date:	Mon, 4 Jun 2007 16:27:36 -0700
From:	"Keshavamurthy, Anil S" <anil.s.keshavamurthy@...el.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Muli Ben-Yehuda <muli@...ibm.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] stop x86 ->sysdata abuse; introduce pci_sysdata

On Mon, Jun 04, 2007 at 05:05:51PM -0400, Jeff Garzik wrote:
> 
> This patch introduces struct pci_sysdata to x86 and x86-64, and
> converts the existing two users (NUMA, Calgary) to use it.
> 
> This eliminates the conflict between NUMA and Calgary using the same
> pointer for different uses, and lays the groundwork for adding x86
> PCI domain support.
> 
> Signed-off-by: Jeff Garzik <jeff@...zik.org>
> 
> ---
> 
> NOTE:  This patch is untested, extract from the larger changes found in
> jgarzik/misc-2.6.git#pciseg.  Hopefully NUMA and/or Calgary users will
> test and ack this, then build patches on top of it.

Looks like the recently announced Intel-IOMMU too (just like Calgary)
depends on sysdata. I will modify my Intel-IOMMU accordingly and 
will let you know how it goes with your patch.

thanks,
Anil
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