Re: [PATCH 0/9] TI DMM-TILER driver

David Sin
2010-12-16T18:49:55Z

On Thu, Dec 16, 2010 at 06:43:48PM +0100, Arnd Bergmann wrote:
> As far as I can tell, both DMM and GEM at a high level manage objects
> in video memory. The IOMMU that you have on the Omap hardware seems
> to resemble the GART that sits between PC-style video cards and main
> memory.
>
> I don't know any details, but google quickly finds
> http://lwn.net/Articles/283798/ with a description of the
> initial GEM design. My main thought when looking over the
> DMM code was that this should not be tied too closely to a
> specific hardware, and GEM seems to be an existing abstraction
> that may fit what you need.
>
> Arnd
Thanks for the pointer, Arnd. I also found a nice readme file in
the gpu/drm directory, which points to a wiki and source code.
I'll read into this and get back to you.

BR,
--
David Sin