From: Nameer Yarkon <nameer.yarkon@gmail.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
Robert Hancock <hancockrwd@gmail.com>,
"Anton D. Kachalov" <mouse@mayc.ru>,
linux-kernel@vger.kernel.org
Subject: Re: Reading /dev/mem by dd
Date: Tue, 16 Feb 2010 11:03:49 +0200 [thread overview]
Message-ID: <bec9a5871002160103t17c36599w13f18d79cc84e539@mail.gmail.com> (raw)
In-Reply-To: <20100216084110.GK21783@one.firstfloor.org>
On Tue, Feb 16, 2010 at 10:41 AM, Andi Kleen <andi@firstfloor.org> wrote:
> Modern X does it through kernel modules (DRM, GEM etc.)
is it done by an mmap call (to the device) ?
> One reason it's needed to do it this way is IOMMUs.
why would it care about IOMMUs ? do graphic cards manipulate the memory too ?
thank you!
>
> -Andi
>
> --
> ak@linux.intel.com -- Speaking for myself only.
>
next prev parent reply other threads:[~2010-02-16 9:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-16 8:35 Nameer Yarkon
2010-02-16 8:41 ` Andi Kleen
2010-02-16 9:03 ` Nameer Yarkon [this message]
2010-02-16 12:31 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2009-11-11 14:36 Anton D. Kachalov
2009-11-11 16:20 ` Américo Wang
2009-11-12 15:46 ` Anton D. Kachalov
2009-11-11 21:09 ` Robert Hancock
2009-11-12 2:12 ` Henrique de Moraes Holschuh
2009-11-12 11:09 ` Alan Cox
2009-11-12 16:06 ` Henrique de Moraes Holschuh
2009-11-12 17:52 ` Alan Cox
2009-11-12 16:44 ` Andi Kleen
2009-11-12 17:37 ` Henrique de Moraes Holschuh
2009-11-12 17:49 ` Alan Cox
2009-11-12 17:57 ` Henrique de Moraes Holschuh
2009-11-12 18:13 ` Alan Cox
2009-11-12 20:02 ` Henrique de Moraes Holschuh
2009-11-12 20:06 ` Alan Cox
2009-11-12 21:07 ` Krzysztof Halasa
2009-11-12 21:29 ` Cyrill Gorcunov
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