linux-kernel - Re: [PATCH] OMAP: iommu flush page table entries from L1 and L2 cache

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Message-Id: <201104181613.43572.arnd@arndb.de>
Date:	Mon, 18 Apr 2011 16:13:43 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Kyungmin Park <kmpark@...radead.org>
Cc:	Tony Lindgren <tony@...mide.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Andrzej Pietrasiewicz <andrzej.p@...sung.com>,
	Hari Kanigeri <h-kanigeri2@...com>,
	"Russell King - ARM Linux" <linux@....linux.org.uk>,
	Fernando Guzman Lugo <fernando.lugo@...com>,
	Hiroshi DOYU <Hiroshi.DOYU@...ia.com>,
	linux-kernel@...r.kernel.org, Ramesh Gupta <grgupta@...com>,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] OMAP: iommu flush page table entries from L1 and L2 cache

On Monday 18 April 2011, Kyungmin Park wrote:
> On Mon, Apr 18, 2011 at 8:58 PM, Arnd Bergmann <arnd@...db.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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