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authorChristoph Hellwig <hch@lst.de>2018-06-15 14:08:38 +0300
committerPaul Burton <paul.burton@mips.com>2018-06-24 19:26:03 +0300
commit3369ddb62a42e8392562c86d63811ba8b0167a58 (patch)
tree8b0690f2567f3c8c7ab5ed635c7976b02d62f902 /arch/mips/include
parentd3b83dcc7fcba94b7ec6bc0899828e1d814d20a9 (diff)
downloadlinux-3369ddb62a42e8392562c86d63811ba8b0167a58.tar.xz
MIPS: make the default mips dma implementation optional
Octeon and loonson64 already don't use it at all, and we're going to migrate more plaforms away from it. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19536/ 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
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/dma-mapping.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index f24b052ec740..eaf3d9054104 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -17,8 +17,10 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SWIOTLB
return &mips_swiotlb_ops;
-#else
+#elif defined(CONFIG_MIPS_DMA_DEFAULT)
return &mips_default_dma_map_ops;
+#else
+ return NULL;
#endif
}