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Commit 95b0e655 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Linus Torvalds
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ARM: mm: don't limit default CMA region only to low memory 



DMA-mapping supports CMA regions places either in low or high memory, so
there is no longer needed to limit default CMA regions only to low memory.
 The real limit is still defined by architecture specific DMA limit.

Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Reported-by: default avatarRussell King - ARM Linux <linux@arm.linux.org.uk>
Acked-by: default avatarMichal Nazarewicz <mina86@mina86.com>
Cc: Daniel Drake <drake@endlessm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f7426b98

arch/arm/mm/init.c

+1 −1
Original line number Diff line number Diff line
@@ -322,7 +322,7 @@ void __init arm_memblock_init(const struct machine_desc *mdesc) 
	 * reserve memory for DMA contigouos allocations,

	 * must come from DMA area inside low memory

	 */

	dma_contiguous_reserve(min(arm_dma_limit, arm_lowmem_limit));

	dma_contiguous_reserve(arm_dma_limit);



	arm_memblock_steal_permitted = false;

	memblock_dump_all();