[PATCH 1/2] arm: msm: Add System MMU support.

FUJITA Tomonori fujita.tomonori at lab.ntt.co.jp
Thu Jul 29 05:14:49 EDT 2010


On Thu, 29 Jul 2010 11:06:08 +0200
"Roedel, Joerg" <Joerg.Roedel at amd.com> wrote:

> On Thu, Jul 29, 2010 at 04:46:59AM -0400, FUJITA Tomonori wrote:
> > On Thu, 29 Jul 2010 10:40:19 +0200
> > "Roedel, Joerg" <Joerg.Roedel at amd.com> wrote:
> > 
> > > The IOMMU-API is not about SR-IOV.
> > 
> > That's true. However, the point is that include/iommu.h is far from
> > the IOMMU-API.
> > 
> > You could still insist that include/iommu.h is designed for the
> > generic IOMMU-API. But the fact is that it's designed for very
> > specific purposes. No intention to make it for generic purposes.
> 
> I have no clue about the ARM iommus on the omap-platform. From a quick
> look into the header file I see some similarities to the IOMMU-API. I am

ARM's iommu stuff might be more appropriate as the IOMMU-API than
include/linux/iommu.h


> also very open for discussions about how the IOMMU-API could be extended
> to fit the needs of other platforms. Only because nobody has tried to
> discuss about such an effort is no reason to push the IOMMU-API back.

Well, the reason (nobody has tried) might be that linux/iommu.h
doesn't look something intended for the generic IOMMU-API.



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