Messages in this thread | | | Date | Wed, 06 Jul 2011 17:47:27 +0200 | From | Marek Szyprowski <> | Subject | RE: [PATCH 6/8] drivers: add Contiguous Memory Allocator |
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Hello,
On Wednesday, July 06, 2011 5:37 PM Russell King - ARM Linux wrote:
> On Wed, Jul 06, 2011 at 04:56:23PM +0200, Marek Szyprowski wrote: > > This will not solve our problems. We need CMA also to create at least one > > device private area that for sure will be in low memory (video codec). > > You make these statements but you don't say why. Can you please > explain why the video codec needs low memory - does it have a > restricted number of memory address bits which it can manipulate?
Nope, it only needs to put some type of memory buffers in first bank (effectively in 30000000-34ffffff area) and the others in the second bank (40000000-57ffffff area). The values are given for Samsung GONI board.
Best regards -- Marek Szyprowski Samsung Poland R&D Center
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