Contiguous memory allocation for drivers
Posted Jul 25, 2010 14:31 UTC (Sun) by giraffedata
In reply to: Contiguous memory allocation for drivers
Parent article: Contiguous memory allocation for drivers
Those are good reasons for CMA, but don't seem to be what the article is about. In the example in the article, it appears that a region is dedicated to the camera -- there's no opportunity to share with another driver. And the article starts off by saying the problem to be solved is that if you allocate the memory at boot time, you waste the memory when you aren't using the camera, but if you allocate it later, you might not be able to get it because of fragmentation.
I have now read the linked CMA documentation as well, and I think the article just missed the point of CMA.
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