linux-kernel - Re: Question about iommu on x86

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Message-ID: <dfd8bfd19ba1fb77d6448bff97123e13@admin.gogi.tv>
Date:	Fri, 27 May 2011 16:48:39 +0100
From:	Daniel Haid <d.haid@...i.tv>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Andi Kleen <andi@...stfloor.org>
Cc:	<linux-kernel@...r.kernel.org>
Subject: Re: Question about iommu on x86_64 and radeon driver.

 I have looked again at the radeon driver and it seems that the
 drm drivers use vmalloc_32 to allocate their dma memory and
 that vmalloc_32 should allocate physical 32-bit addresses
 (in 2.6.39)?

 So why does it still not work?


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