linux-kernel - Re: [Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1

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Message-Id: <201104261629.51765.arnd@arndb.de>
Date:	Tue, 26 Apr 2011 16:29:51 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	KyongHo Cho <pullip.cho@...sung.com>
Cc:	Zach Pfeffer <zach.pfeffer@...aro.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Ilho Lee <ilho215.lee@...sung.com>, sanghyun75.lee@...sung.com
Subject: Re: [Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1

On Friday 22 April 2011, KyongHo Cho wrote:
> IOMMU api does not provide virtual memory management.
> DMA api is not flexible for all our use-cases.

We can fix either problem by changing the existing interfaces,
which is much more maintainable in the long run than adding
a third one.

	Arnd
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