Scott Wood cf5621032f powerpc/64: Limit ZONE_DMA32 to 4GiB in swiotlb_detect_4g() ...

A DMA zone is still needed with swiotlb, for coherent allocations.
This doesn't affect platforms that don't use swiotlb or that don't call
swiotlb_detect_4g().

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>

2014-09-03 17:58:22 -05:00

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