Lines Matching refs:DMA
17 remap DMA requests and/or remap interrupts from other devices on the
93 # IOMMU-agnostic DMA-mapping layer
145 remapping of DMA memory accesses from devices. With an AMD IOMMU you
146 can isolate the DMA memory of different devices and protect the
179 bool "Support for Intel IOMMU using DMA Remapping Devices"
187 DMA remapping (DMAR) devices support enables independent address
188 translations for Direct Memory Access (DMA) from devices.
189 These DMA remapping devices are reported via ACPI tables
190 and include PCI device scope covered by these DMA
213 to access DMA resources through process address space by
218 prompt "Enable Intel DMA Remapping Devices by default"
230 for DMA and avoid using DMA APIs. Setting this config
233 to use physical addresses for DMA, at least until this
240 Floppy disk drivers are known to bypass DMA API calls
370 devicetree bindings. This allows some DMA masters to attach
371 to the SMMU but does not provide any support via the DMA API.
450 Memory Management Unit. This option enables remapping of DMA memory
466 DMA memory accesses for the multimedia subsystem.