Lines Matching refs:DMA
79 # Select this option if the architecture assumes DMA devices are coherent
99 a hardware IOMMU such as ARM SMMU covering most DMA-capable devices),
102 DMA address ranges.
112 bool "Dynamic allocation of DMA bounce buffers"
134 bool "DMA Restricted Pool"
137 This enables support for restricted DMA pools which provide a level of
138 DMA memory protection on systems with limited hardware protection
171 # Fallback to arch code for DMA allocations. This should eventually go away.
180 bool "DMA Contiguous Memory Allocator"
196 bool "Enable separate DMA Contiguous Memory Area for NUMA Node"
200 can get local memory by DMA coherent APIs.
215 so that most devices may have benefit from better DMA
265 DMA mapping framework by default aligns all buffers to the smallest
281 bool "Enable debugging of DMA-API usage"
284 Enable this option to debug the use of the DMA API by device drivers.
286 drivers like double-freeing of DMA mappings or freeing mappings that
295 bool "Enable benchmarking of streaming DMA mapping"