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

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Subject: [RFC] switch m68k to use the generic remapping DMA allocator
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 14 Jun 2019 12:21:24 +0200
Cc: linux-m68k@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx

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.

Follow-Ups:
- Re: [RFC] switch m68k to use the generic remapping DMA allocator
  - From: Geert Uytterhoeven
- Re: [RFC] switch m68k to use the generic remapping DMA allocator
  - From: Geert Uytterhoeven
- Re: [RFC] switch m68k to use the generic remapping DMA allocator
  - From: Greg Ungerer
- [PATCH 1/2] m68k: use the generic dma coherent remap allocator
  - From: Christoph Hellwig
- [PATCH 2/2] m68k: implement arch_dma_prep_coherent
  - From: Christoph Hellwig

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