From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wilson <chris@chris-wilson.co.uk>
Subject: Re: [PATCH] Mapping snooped user pages into the GTT
Date: Wed, 12 Jan 2011 11:34:44 +0000
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To: april <aapril03@gmail.com>
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On Wed, 12 Jan 2011 15:40:33 +0800, april <aapril03@gmail.com> wrote:
> Dear  Chris:
> 
> what do u mean " blit between snooped and unsnooped memory"?
> It seems you want to map user-space pixmap to GTT space, and use 2d
> copy to do upload/download?

Yes, and sample from snooped memory for some operations.
 
> TTM can map user space memory to GTT aperture by using
> "ttm_bo_type_user", but no dirver use it yet.??

Different driver, but thanks for reminding me to check ttm. It seems we
made slightly different choices over the lifetime of the gup, but
otherwise the same.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre