On 2010-07-25 15:50, Russell King - ARM Linux wrote:
> + * Align the virtual region allocation - maximum alignment is
> + * a section size, minimum is a page size. This helps reduce
> + * fragmentation of the DMA space, and also prevents allocations
> + * smaller than a section
The DMA coherent remap area is used to provide an uncached mapping
of memory for coherency with DMA engines. Currently, we look for
any free hole which our allocation will fit in with page alignment.
However, this can lead to fragmentation of the area, and allows small
allocations to cross L1 ent
