linux-kernel - RE: [PATCH 2/3 v14] iommu/fsl: Add additional iommu attributes required by the PAMU driver.

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Message-ID: <C5ECD7A89D1DC44195F34B25E172658D4B820D@039-SN2MPN1-011.039d.mgd.msft.net>
Date:	Wed, 24 Apr 2013 11:21:14 +0000
From:	Sethi Varun-B16395 <B16395@...escale.com>
To:	Joerg Roedel <joro@...tes.org>
CC:	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"galak@...nel.crashing.org" <galak@...nel.crashing.org>,
	"benh@...nel.crashing.org" <benh@...nel.crashing.org>,
	Yoder Stuart-B08248 <B08248@...escale.com>,
	Wood Scott-B07421 <B07421@...escale.com>
Subject: RE: [PATCH 2/3 v14] iommu/fsl: Add additional iommu attributes
 required by the PAMU driver.



> -----Original Message-----
> From: Joerg Roedel [mailto:joro@...tes.org]
> Sent: Wednesday, April 24, 2013 4:21 PM
> To: Sethi Varun-B16395
> Cc: iommu@...ts.linux-foundation.org; linuxppc-dev@...ts.ozlabs.org;
> linux-kernel@...r.kernel.org; galak@...nel.crashing.org;
> benh@...nel.crashing.org; Yoder Stuart-B08248; Wood Scott-B07421
> Subject: Re: [PATCH 2/3 v14] iommu/fsl: Add additional iommu attributes
> required by the PAMU driver.
> 
> On Tue, Apr 23, 2013 at 02:10:25PM +0000, Sethi Varun-B16395 wrote:
> > I think it's fine to have the header under linux, actually I also the
> > intel-iommu header under linux.
> 
> Yes, the difference is that VT-d runs on x86 and on ia64. So there is no
> single arch where the header could be placed. The amd-iommu.h file on the
> other hand is x86 only and should also be moved to asm/, as I just found
> out :)
> 
> And as long as PAMU is only needed on a single architecture the header
> should also be arch-specific. If that changes someday the header can be
> moved to a generic place.
> 
Ok, I will post the next version of the patch set.

-Varun


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