On Thu, 2012-05-24 at 02:44 -0600, Rob Clark wrote: > but other drivers *can* use tiler, thanks to dmabuf.. I have omap4iss > v4l2 camera working w/ tiler buffers on my pandaboard, for example. > > Maybe fbdev is an exception to the rule because it has no way for > userspace to pass it a buffer to use. But on the other hand it is a > legacy API so I'm not sure if it is worth loosing too much sleep over > that. I'm not that familiar with dmabuf, but are you saying it's not possible for a kernel driver to request the buffers? They _must_ come from the userspace? Anyway, even if it would be possible, if the tiler is a part of omapdrm we need omapdrm to get and use the tiler buffers. And we can't have omapdrm running when using omapfb, because they both use omapdss. Tomi
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