![]() Most dma_map_ops instances are IOMMUs that work perfectly fine in 32-bits of IOVA space, and the generic direct mapping code already provides its own routines that is intelligent based on the amount of memory actually present. Wire up the dma-direct routine for the ARM direct mapping code as well, and otherwise default to the constant 32-bit mask. This way we only need to override it for the occasional odd IOMMU that requires 64-bit IOVA support, or IOMMU drivers that are more efficient if they can fall back to the direct mapping. Signed-off-by: Christoph Hellwig <hch@lst.de> |
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.. | ||
coherent.c | ||
contiguous.c | ||
debug.c | ||
direct.c | ||
dummy.c | ||
Kconfig | ||
Makefile | ||
mapping.c | ||
remap.c | ||
swiotlb.c | ||
virt.c |