linux-kernel - Re: [PATCH 0/4] drivers/iommu/ relocations

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Message-ID: <20110608133555.GC21591@amd.com>
Date:	Wed, 8 Jun 2011 15:35:55 +0200
From:	"Roedel, Joerg" <Joerg.Roedel@....com>
To:	Ohad Ben-Cohen <ohad@...ery.com>
CC:	Matthew Wilcox <matthew@....cx>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	David Brown <davidb@...eaurora.org>,
	David Woodhouse <dwmw2@...radead.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 0/4] drivers/iommu/ relocations

On Wed, Jun 08, 2011 at 09:11:16AM -0400, Ohad Ben-Cohen wrote:
> On Wed, Jun 8, 2011 at 4:05 PM, Matthew Wilcox <matthew@....cx> wrote:
> > You've missed at least parisc, ia64, alpha, sparc, powerpc and sh which
> > have IOMMUs.
> 
> None of these seem to call register_iommu.
> 
> > Not that they necessarily all need to be moved across in
> > one patchset, but saying "all iommu drivers" is clearly false.
> 
> I've moved only the existing IOMMU API users.

And I think that is good for now. The iommu-api needs to be extended to
cover all kinds of iommus (like the iommus available on other
architectures). It is definitly the plan to do that and have a common
dma_ops implementation for all of them. But lets start small by now and
move forward step by step :-)

	Joerg

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