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MIPS: use generic dma noncoherent ops for simple noncoherent platforms

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Convert everything not overriding dma-coherence.h to the generic
noncoherent ops.  The new dma-noncoherent.c file duplicates a lot of
the code in dma-default.c, but that file will be gone by the end of
this series.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Patchwork: https://patchwork.linux-mips.org/patch/19544/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-mips@linux-mips.org
This commit is contained in:
Christoph Hellwig 2018-06-15 13:08:46 +02:00 • committed by Paul Burton
parent aa4db77595
commit f8c55dc6e8
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GPG key ID: 3EA79FACB57500DD
8 changed files with 216 additions and 28 deletions
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2
arch/mips/include/asm/dma-mapping.h
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@ -19,6 +19,8 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return &mips_swiotlb_ops;
#elif defined(CONFIG_MIPS_DMA_DEFAULT)
return &mips_default_dma_map_ops;
#elif defined(CONFIG_DMA_NONCOHERENT_OPS)
return &dma_noncoherent_ops;
#else
return &dma_direct_ops;
#endif