tree 21e98a541d15b97840c0a33bb303e0c91f7a5aa6
parent ff2437befd8fe52046e0db949347b5bcfab6b097
author Christoph Hellwig <hch@lst.de> 1561913027 +0200
committer Christoph Hellwig <hch@lst.de> 1562192992 -0700

MIPS: only select ARCH_HAS_UNCACHED_SEGMENT for non-coherent platforms

While mips might architecturally have the uncached segment all the time,
the infrastructure to use it is only need on platforms where DMA is
at least partially incoherent.  Only select it for those configuration
to fix a build failure as the arch_dma_prep_coherent symbol is also only
provided for non-coherent platforms.

Fixes: 2e96e04d25ca ("MIPS: use the generic uncached segment support in dma-direct")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>