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From: Daniel Haid <d.haid@gogi.tv>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andi Kleen <andi@firstfloor.org>, <linux-kernel@vger.kernel.org>
Subject: Re: Question about iommu on x86_64 and radeon driver.
Date: Fri, 27 May 2011 23:20:09 +0100	[thread overview]
Message-ID: <9e26ea71798d10a3f900c777b71ff485@admin.gogi.tv> (raw)
In-Reply-To: <20110527155507.GB11273@dumpdata.com>

> The DRM code is not used anymore. It was used by XFree86 but nowadays
> the TTM code is used instead.

 I see

> Ah, this would be a lengthy writeup.. so did you look at the
> link I pointed you to?

 Yes I have started, but do not understand everything yet.

 What are MFNs? Is this something Xen-specific?

 An does your post imply that on bare metal with "swiotlb=force 
 iommu=soft"
 alloc_page with GFP_DMA32 does also not allocate under 4GB?


  reply	other threads:[~2011-05-27 22:20 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-22 21:56 Daniel Haid
2011-05-23 22:05 ` Konrad Rzeszutek Wilk
2011-05-23 23:45   ` Daniel Haid
2011-05-24 15:50     ` Konrad Rzeszutek Wilk
2011-05-24 21:33       ` Daniel Haid
2011-05-25 12:58         ` Konrad Rzeszutek Wilk
2011-05-25 14:28           ` Daniel Haid
2011-05-24 22:48     ` Andi Kleen
2011-05-25 10:00       ` Daniel Haid
2011-05-25 12:57         ` Konrad Rzeszutek Wilk
2011-05-25 14:51           ` Daniel Haid
2011-05-25 20:21           ` Daniel Haid
2011-05-25 23:05             ` Andi Kleen
2011-05-27 15:48           ` Daniel Haid
2011-05-27 15:55             ` Konrad Rzeszutek Wilk
2011-05-27 22:20               ` Daniel Haid [this message]
2011-05-31 13:45                 ` Konrad Rzeszutek Wilk
2011-05-31 15:34                   ` Daniel Haid
2011-05-31 16:02                     ` Konrad Rzeszutek Wilk
     [not found]                       ` <0a8cb4bcad7fcf091a6bbe158323bba0@admin.gogi.tv>
2011-05-31 16:20                         ` Daniel Haid
     [not found]                         ` <20110531190412.GA21245@dumpdata.com>
2011-05-31 19:57                           ` Daniel Haid
2011-06-01 13:24                             ` Konrad Rzeszutek Wilk
2011-06-01 16:10                               ` Daniel Haid
2011-06-01 21:51                                 ` Andi Kleen
2011-06-01 21:58                                 ` Daniel Haid
2011-06-01 22:22                                   ` Andi Kleen
2011-06-03 17:31                                     ` [PATCH] tentative fix for radeon on systems >4GB without hardware iommu Daniel Haid
2011-06-03 20:44                                       ` Alex Deucher
2011-06-03 23:13                                         ` Konrad Rzeszutek Wilk
2011-06-06 17:45                                           ` Daniel Haid
2011-06-06 17:41                                         ` Daniel Haid
2011-06-06 19:08                                           ` Alex Deucher

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