1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "AMD Queue-based DMA"
7 select DMA_VIRTUAL_CHANNELS
10 Enable support for the AMD Queue-based DMA subsystem. The primary
11 mechanism to transfer data using the QDMA is for the QDMA engine to
12 operate on instructions (descriptors) provided by the host operating
13 system. Using the descriptors, the QDMA can move data in either the
14 Host to Card (H2C) direction or the Card to Host (C2H) direction.