linux-kernel - Re: [PATCH] remove fullflush and nofullflush in IOMMU generic option

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Date:	Fri, 19 Sep 2008 19:30:04 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
CC:	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remove fullflush and nofullflush in IOMMU generic option

On Sat, Sep 20, 2008 at 02:09:21AM +0900, FUJITA Tomonori wrote:
> 
> Please keep it for AMD option for now. Please send a patch to make it
> generic to other IOMMU people and give them a chance to discuss on
> it.
>

Btw, you already agreed with a generic iommu= parameter for lazy IO/TLB
flushing"


 > True. We should merge common parameters across IOMMUs into the
 > iommu= parameter some time in the future, I think. It would also be the
 > place for the IOMMU size parameter.

 Hmm, now is better than the future? I think that now you can add
 something like 'disable_batching_flush' as a common parameter and
 change AMD IOMMU to use it.

in http://lkml.org/lkml/2008/9/17/376

And since we already have a iommu=fullflush parameter it makes sense of
make it generic.

Joerg

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