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dma-mapping: bypass indirect calls for dma-direct

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Avoid expensive indirect calls in the fast path DMA mapping
operations by directly calling the dma_direct_* ops if we are using
the directly mapped DMA operations.

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Jesper Dangaard Brouer <[email protected]>
Tested-by: Jesper Dangaard Brouer <[email protected]>
Tested-by: Tony Luck <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-12-06 13:39:32 -08:00
commit 356da6d0cd
20 changed files with 150 additions and 119 deletions
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2
include/asm-generic/dma-mapping.h
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@ -4,7 +4,7 @@
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
return NULL;
}
#endif /* _ASM_GENERIC_DMA_MAPPING_H */