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- # SPDX-License-Identifier: GPL-2.0-only
- config AMD_QDMA
- tristate "AMD Queue-based DMA"
- depends on HAS_IOMEM
- select DMA_ENGINE
- select DMA_VIRTUAL_CHANNELS
- select REGMAP_MMIO
- help
- Enable support for the AMD Queue-based DMA subsystem. The primary
- mechanism to transfer data using the QDMA is for the QDMA engine to
- operate on instructions (descriptors) provided by the host operating
- system. Using the descriptors, the QDMA can move data in either the
- Host to Card (H2C) direction or the Card to Host (C2H) direction.
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