From mboxrd@z Thu Jan 1 00:00:00 1970 From: davidsin@ti.com (David Sin) Date: Thu, 16 Dec 2010 11:25:36 -0600 Subject: [PATCH 0/9] TI DMM-TILER driver In-Reply-To: <201012161434.05768.arnd@arndb.de> References: <1291674446-10766-1-git-send-email-davidsin@ti.com> <201012161434.05768.arnd@arndb.de> Message-ID: <20101216172531.GG29435@lba0869738> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Dec 16, 2010 at 02:34:05PM +0100, Arnd Bergmann wrote: > On Monday 06 December 2010, David Sin wrote: > > Tiling and Isometric Lightweight Engine for Rotation (TILER) driver > > ===== > > > > Dynamic Memory Manager (DMM) is a hardware block made by Texas Instruments. > > Within the DMM exists at least one TILER hardware component. Its purpose is to > > organize video/image memory in a 2-dimensional fashion to limit memory > > bandwidth and facilitate 0 effort rotation and mirroring. The TILER driver > > facilitates allocating, freeing, as well as mapping 2D blocks (areas) in the > > TILER container(s). It also facilitates rotating and mirroring the allocated > > blocks or its rectangular subsections. > > How does this relate to DRM/GEM? I don't understand too much about graphics > drivers, but it does sound like there is some overlap in functionality. > > I guess at the very least the DMM should live in drivers/gpu/ instead of > drivers/misc, but perhaps it could be integrated more closely with the > existing code there. > > Arnd Do you know if anyone on your team is familiar with DRM/GEM (grap ext mgr) for x86? I'm trying to understand the differences and make a case that it's not the same as DMM/TILER. thanks, -- David Sin