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From: http://lwn.net/Articles/283798/NOTE: Currently the buffer creation/read/write are implemented by driver specified ioctls. So right now you can't find functions like "drm_gem_create" in kernel sources.And that's also why we need "dumb buffer" in drm's ioctls(dumb 阅读全文
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From: http://lwn.net/Articles/257417/The management of video hardware has long been an area of weakness in the Linux system (and free operating systems in general). The X Window System tends to get a lot of the blame for problems in this area, but the truth of the matter is that the problems are mor 阅读全文
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From: http://lwn.net/Articles/283793/Getting high-performance, three-dimensional graphics working under Linux is quite a challenge even when the fundamental hardware programming information is available. One component of this problem is memory management: a graphics processor (GPU) is, essentially, 阅读全文