linux-kernel - Re: [Intel IOMMU][patch 7/8] Support for legacy ISA devices

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Message-ID: <462E69B0.6030908@linux.intel.com>
Date:	Tue, 24 Apr 2007 13:33:52 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Andi Kleen <ak@...e.de>
CC:	Ashok Raj <ashok.raj@...el.com>, linux-kernel@...r.kernel.org,
	akpm@...l.org, gregkh@...e.de, muli@...ibm.com,
	asit.k.mallick@...el.com, suresh.b.siddha@...el.com,
	anil.s.keshavamurthy@...el.com, shaohua.li@...el.com
Subject: Re: [Intel IOMMU][patch 7/8] Support for legacy ISA devices

Andi Kleen wrote:
> On Tuesday 24 April 2007 08:03:06 Ashok Raj wrote:
>> Floppy disk drivers dont work well with DMA remapping.
> 
> What is the problem? You can't allocate mappings <16MB?
>
floppy doesn't use the DMA mapping API :)
that's the problem
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