| # 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. |