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1# SPDX-License-Identifier: GPL-2.0-only2config AMD_PTDMA3 tristate "AMD PassThru DMA Engine"4 depends on X86_64 && PCI5 select DMA_ENGINE6 select DMA_VIRTUAL_CHANNELS7 help8 Enable support for the AMD PTDMA controller. This controller9 provides DMA capabilities to perform high bandwidth memory to10 memory and IO copy operations. It performs DMA transfer through11 queue-based descriptor management. This DMA controller is intended12 to be used with AMD Non-Transparent Bridge devices and not for13 general purpose peripheral DMA.14