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ARM: mm: fix MMU mapping of CMA regions 

Fix dma_contiguous_remap() so that it continues through all the
regions, even after encountering one that is outside lowmem.
Without this change, if you have two CMA regions, the first outside
lowmem and the seocnd inside lowmem, only the second one will get
set up in the MMU. Data written to that region then doesn't get
automatically flushed from the cache into memory.

Signed-off-by: Chris Brand <cbrand@broadcom.com>
[extended patch subject with 'fix' word]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This commit is contained in:
Chris Brand 2012-08-07 14:01:14 +02:00 committed by Marek Szyprowski
parent 0d7614f09c
commit 39f78e7056
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mm/dma-mapping.c
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@ -358,7 +358,7 @@ void __init dma_contiguous_remap(void)
if (end > arm_lowmem_limit)
end = arm_lowmem_limit;
if (start >= end)
return;
continue;
map.pfn = __phys_to_pfn(start);
map.virtual = __phys_to_virt(start);