Hi all, We had a discussion yesterday regarding ways in which linaro can assist V4L2 development. One topic was that of sorting out memory providers like GEM and HWMEM. Today I learned of yet another one: UMP from ARM. http://blogs.arm.com/multimedia/249-making-the-mali-gpu-device-driver-open-source/page__cid__133__show__newcomment/ This is getting out of hand. I think that organizing a meeting to solve this mess should be on the top of the list. Companies keep on solving the same problem time and again and since none of it enters the mainline kernel any driver using it is also impossible to upstream. All these memory-related modules have the same purpose: make it possible to allocate/reserve large amounts of memory and share it between different subsystems (primarily framebuffer, GPU and V4L). It really shouldn't be that hard to get everyone involved together and settle on a single solution (either based on an existing proposal or create a 'the best of' vendor-neutral solution). I am currently aware of the following solutions floating around the net that all solve different parts of the problem: In the kernel: GEM and TTM. Out-of-tree: HWMEM, UMP, CMA, VCM, CMEM, PMEM. I'm sure that last list is incomplete. Regards, Hans -- Hans Verkuil - video4linux developer - sponsored by Cisco -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
