ARM: dma-mapping: remove custom consistent dma region
This patch changes dma-mapping subsystem to use generic vmalloc areas for all consistent dma allocations. This increases the total size limit of the consistent allocations and removes platform hacks and a lot of duplicated code. Atomic allocations are served from special pool preallocated on boot, because vmalloc areas cannot be reliably created in atomic context. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: NKyungmin Park <kyungmin.park@samsung.com> Reviewed-by: NMinchan Kim <minchan@kernel.org>
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