From: Arnd Bergmann <arnd@arndb.de>
To: Kyungmin Park <kmpark@infradead.org>
Subject: Re: [PATCH] OMAP: iommu flush page table entries from L1 and L2 cache
Date: Mon, 18 Apr 2011 16:13:43 +0200
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Cc: Tony Lindgren <tony@atomide.com>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
        Hari Kanigeri <h-kanigeri2@ti.com>,
        "Russell King - ARM Linux" <linux@arm.linux.org.uk>,
        Fernando Guzman Lugo <fernando.lugo@ti.com>,
        Hiroshi DOYU <Hiroshi.DOYU@nokia.com>, linux-kernel@vger.kernel.org,
        Ramesh Gupta <grgupta@ti.com>, linux-omap@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
References: <1302817968-28516-1-git-send-email-fernando.lugo@ti.com> <201104181358.53521.arnd@arndb.de> <BANLkTimc20N0nh9O0FaSXizW+bYOMx9Ddw@mail.gmail.com>
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On Monday 18 April 2011, Kyungmin Park wrote:
> On Mon, Apr 18, 2011 at 8:58 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> >
> > One missing piece is still a way for a platform to provide both
> > the iommu and the dma-mapping API in a unified driver. Right now,
> > you have to export both interface for a generic solution.
> 
> Actually MSM and we (Michal, Marek) tried to merge the generic IOMMU
> implementation into mm, but MM did't accept it.

I'm confused. What do you mean with MM?

> So now it's implemented at each SoCs. I think it's good chance to make
> a generic IOMMU feature for ARM consolidation.
>
> Before this idea, can you review our implementation at above URL?

I've commented on the main implementation for the IOMMU now.

	Arnd
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