linux-kernel - Re: [PATCH] x86: fix gart iommu using for amd 64 bit system

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Message-ID: <4B0C25E7.2040806@kernel.org>
Date:	Tue, 24 Nov 2009 10:28:55 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>, hpa@...or.com,
	tglx@...utronix.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: fix gart iommu using for amd 64 bit system

Ingo Molnar wrote:
> * FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> wrote:
> 
>>> don't think user will like to use SWIOTLB instead of swiotlb.
>> I doubt that users care about a way to fix their problems.
> 
> As far as swiotlb vs. GART goes, arguably a non-bouncing hw based 
> solution (GART) is superior to a bouncing one (swiotlb), right?
> 

yes, should use GART if possible.

YH
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