| # SPDX-License-Identifier: GPL-2.0-only |
| config AMD_PTDMA |
| tristate "AMD PassThru DMA Engine" |
| depends on X86_64 && PCI |
| select DMA_ENGINE |
| select DMA_VIRTUAL_CHANNELS |
| help |
| Enable support for the AMD PTDMA controller. This controller |
| provides DMA capabilities to perform high bandwidth memory to |
| memory and IO copy operations. It performs DMA transfer through |
| queue-based descriptor management. This DMA controller is intended |
| to be used with AMD Non-Transparent Bridge devices and not for |
| general purpose peripheral DMA. |
