Re: [PATCH 06/07] videobuf: Add physically contiguous queue code

[Paulius Zaleckas <paulius.zaleckas@xxxxxxxxxxxx>]

Heh. I have written almost identical videobuf driver also :)
You should run checkpatch.pl on this patch to correct some style
problems. Since your version is a little bit more generic than mine:

Acked-by: Paulius Zaleckas <paulius.zaleckas@xxxxxxxxxxxx>

Magnus Damm wrote:
> This patch adds support for videobuf queues made from physically
> contiguous memory. Useful for hardware such as the SuperH Mobile CEU
> which doesn't support scatter gatter bus mastering.
>
> Since it may be difficult to allocate large chunks of physically
> contiguous memory after some uptime due to fragmentation, this code
> allocates memory using dma_alloc_coherent(). Architectures supporting
> dma_declare_coherent_memory() can easily avoid fragmentation issues
> by using dma_declare_coherent_memory() to force dma_alloc_coherent()
> to allocate from a certain pre-allocated memory area.
>
> Signed-off-by: Magnus Damm <damm@xxxxxxxxxx>

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