2021-08-17 21:55:57 +08:00
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# SPDX-License-Identifier: GPL-2.0-only
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config AMD_PTDMA
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tristate "AMD PassThru DMA Engine"
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depends on X86_64 && PCI
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2021-08-17 21:55:58 +08:00
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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2021-08-17 21:55:57 +08:00
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help
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Enable support for the AMD PTDMA controller. This controller
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provides DMA capabilities to perform high bandwidth memory to
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memory and IO copy operations. It performs DMA transfer through
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queue-based descriptor management. This DMA controller is intended
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to be used with AMD Non-Transparent Bridge devices and not for
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general purpose peripheral DMA.
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