[RFC] switch m68k to use the generic remapping DMA allocator

From: Christoph Hellwig
Date: Fri Jun 14 2019 - 06:26:17 EST


Hi Geert and Greg,

can you take a look at the (untested) patches below? They convert m68k
to use the generic remapping DMA allocator, which is also used by
arm64 and csky.