linux-kernel - switch m68k to use the generic remapping DMA allocator v2

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Message-Id: <20190625090135.18872-1-hch@lst.de>
Date:   Tue, 25 Jun 2019 11:01:33 +0200
From:   Christoph Hellwig <hch@....de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     linux-m68k@...ts.linux-m68k.org, iommu@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: switch m68k to use the generic remapping DMA allocator v2

Hi Geert,

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.

Changes since v2:
 - fix kconfig dependencies to properly build on sun3
 - updated a patch description to better explain why we are doing this