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SubjectRe: [PATCH v8 1/3] dmaengine: ptdma: Initial driver for the AMD PTDMA
From
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On 3/21/21 9:59 PM, Sanjay R Mehta wrote:
> From: Sanjay R Mehta <sanju.mehta@amd.com>
>
> Add support for AMD PTDMA controller. It performs high-bandwidth
> memory to memory and IO copy operation. Device commands are managed
> via a circular queue of 'descriptors', each of which specifies source
> and destination addresses for copying a single buffer of data.
>
> Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
> ---

> diff --git a/drivers/dma/ptdma/Kconfig b/drivers/dma/ptdma/Kconfig
> new file mode 100644
> index 0000000..c4f8c6f
> --- /dev/null
> +++ b/drivers/dma/ptdma/Kconfig
> @@ -0,0 +1,11 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +config AMD_PTDMA
> + tristate "AMD PassThru DMA Engine"
> + depends on X86_64 && PCI
> + help
> + Enable support for the AMD PTDMA controller. This controller
> + provides DMA capabilities to performs high bandwidth memory to

to perform

> + memory and IO copy operation. It performs DMA transfer through

better: operations.

> + queue based descriptor management. This DMA controller is intended

queue-based

> + to use with AMD Non-Transparent Bridge devices and not for general

to be used with
or
for use with

> + purpose peripheral DMA.


--
~Randy

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