From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Date: Fri, 19 Dec 2014 20:44:54 +0000
Subject: Re: [PATCH RFC sparc] Break up iommu from monolithic lock for the map to multiple pools/locks
Message-Id: <20141219204454.GM4294@oracle.com>
List-Id: <sparclinux.vger.kernel.org>
References: <20141219151616.GB25248@oracle.com>
In-Reply-To: <20141219151616.GB25248@oracle.com>
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To: sparclinux@vger.kernel.org

On (12/19/14 15:24), David Miller wrote:
> > 
> > sounds good, I'll do this and get back over the next week.
> > (Some things like the demap function pointer may need to be
> > generalized a bit, e.g., pass  the iommu_pool * to the callback for
> > other archs)
> 
> It might be cleaner to have a "const struct iommu_ops *" kind of thing
> in the base iommu structure.

Agreed. The powerpc iommu_table also has a large_pool that I did
not look too carefully into - used for allocating  npages > 15 , iirc.  
I dont know how commonly that happens. 

--Sowmini