From mboxrd@z Thu Jan 1 00:00:00 1970 From: davidsin@ti.com (David Sin) Date: Thu, 16 Dec 2010 13:02:08 -0600 Subject: [PATCH 0/9] TI DMM-TILER driver In-Reply-To: <201012161843.48262.arnd@arndb.de> References: <1291674446-10766-1-git-send-email-davidsin@ti.com> <20101216172531.GG29435@lba0869738> <20101216173737.GA6767@lba0869738> <201012161843.48262.arnd@arndb.de> Message-ID: <20101216190207.GC6767@lba0869738> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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