Lines Matching refs:DMA

12 	  remap DMA requests and/or remap interrupts from other devices on the
51 # IOMMU-agnostic DMA-mapping layer
100 	  remapping of DMA memory accesses from devices. With an AMD IOMMU you
101 	  can isolate the DMA memory of different devices and protect the
132 	bool "Support for Intel IOMMU using DMA Remapping Devices"
138 	  DMA remapping (DMAR) devices support enables independent address
139 	  translations for Direct Memory Access (DMA) from devices.
140 	  These DMA remapping devices are reported via ACPI tables
141 	  and include PCI device scope covered by these DMA
151 	  to access DMA resources through process address space by
156 	prompt "Enable Intel DMA Remapping Devices by default"
168 	  for DMA and avoid using DMA APIs. Setting this config
171 	  to use physical addresses for DMA, at least until this
178 	  Floppy disk drivers are known to bypass DMA API calls
283 	  remapping of DMA memory accesses from all of the IP blocks
288 	  allocated from the IPMMU (iova) for DMA with this option