[Linaro-mm-sig] [PATCH 0/2] Device Tree support for CMA (Contiguous Memory Allocator)

Rob Herring robherring2 at gmail.com
Tue Feb 19 08:58:26 EST 2013


On 02/16/2013 11:18 PM, Nishanth Peethambaran wrote:
> Limiting the scope of the product to a particular use-case (720p or
> 1080p video playback) will be part of firmware mostly OTP-ed in the
> SoC. Firmware author could decide the amount of CMA memory needed and
> put this as part of DT.

What kernel developer would want a firmware author deciding how much
memory is needed? It is not a decision that can be made without
knowledge of the OS. While the frame size could be determined easily
enough based on resolution, the number of buffers needed cannot.

Rob



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