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2010-07-27ARM: DMA coherent allocator: align remapped addressesRussell King
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 entry boundaries. This is undesirable as we want to move towards allocating sections of memory. Align allocations according to the size, limiting the alignment between the page and section sizes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-11-24ARM: dma-mapping: split out vmregion code from dma coherent mapping codeRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Ungerer <gerg@uclinux.org>