linux-kernel - Re: [RFC PATCH] iommu: add ARM short descriptor page table allocator.

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Date:	Tue, 5 May 2015 18:18:02 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Yong Wu <yong.wu@...iatek.com>
Cc:	Will Deacon <will.deacon@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Robin Murphy <robin.murphy@....com>,
	Tomasz Figa <tfiga@...gle.com>,
	Lucas Stach <l.stach@...gutronix.de>,
	linux-mediatek@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	srv_heupstream@...iatek.com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	iommu@...ts.linux-foundation.org
Subject: Re: [RFC PATCH] iommu: add ARM short descriptor page table allocator.

On Tue, Apr 28, 2015 at 03:41:21PM +0800, Yong Wu wrote:
> This patch is for ARM Short Descriptor Format.It has 2-levels
> pagetable and the allocator supports 4K/64K/1M/16M.
> 
> Signed-off-by: Yong Wu <yong.wu@...iatek.com>
> ---
>  drivers/iommu/Kconfig                |   7 +
>  drivers/iommu/Makefile               |   1 +
>  drivers/iommu/io-pgtable-arm-short.c | 489 +++++++++++++++++++++++++++++++++++
>  drivers/iommu/io-pgtable.c           |   4 +
>  drivers/iommu/io-pgtable.h           |   6 +
>  5 files changed, 507 insertions(+)
>  create mode 100644 drivers/iommu/io-pgtable-arm-short.c

What is the context of this, where will it be used?


	Joerg

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