* [PATCH] docs: dmaengine: add explanation for DMA_ASYNC_TX capability
@ 2025-04-21 1:02 kendrajmoore
2025-05-06 13:16 ` Jonathan Corbet
0 siblings, 1 reply; 2+ messages in thread
From: kendrajmoore @ 2025-04-21 1:02 UTC (permalink / raw)
To: dmaengine; +Cc: vkoul, corbet, linux-doc, linux-kernel, Kendra Moore
From: Kendra Moore <kendra.j.moore3443@gmail.com>
This patch replaces the TODO for DMA_ASYNC_TX in the DMA engine
provider documentation. The flag is automatically set by the DMA
framework when a device supports key asynchronous memory-to-memory
operations such as memcpy, memset, xor, pq, xor_val, and pq_val.
It must not be set by drivers directly.
Signed-off-by: Kendra Moore <kendra.j.moore3443@gmail.com>
---
Documentation/driver-api/dmaengine/provider.rst | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst
index 3085f8b460fa..aac2a18bd453 100644
--- a/Documentation/driver-api/dmaengine/provider.rst
+++ b/Documentation/driver-api/dmaengine/provider.rst
@@ -217,10 +217,12 @@ Currently, the types available are:
- DMA_ASYNC_TX
- - Must not be set by the device, and will be set by the framework
- if needed
+ - The device supports asynchronous memory-to-memory operations,
+ including memcpy, memset, xor, pq, xor_val, and pq_val.
- - TODO: What is it about?
+ - This capability is automatically set by the DMA engine
+ framework and must not be configured manually by device
+ drivers.
- DMA_SLAVE
--
2.39.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] docs: dmaengine: add explanation for DMA_ASYNC_TX capability
2025-04-21 1:02 [PATCH] docs: dmaengine: add explanation for DMA_ASYNC_TX capability kendrajmoore
@ 2025-05-06 13:16 ` Jonathan Corbet
0 siblings, 0 replies; 2+ messages in thread
From: Jonathan Corbet @ 2025-05-06 13:16 UTC (permalink / raw)
To: kendrajmoore, dmaengine; +Cc: vkoul, linux-doc, linux-kernel, Kendra Moore
kendrajmoore <kendra.j.moore3443@gmail.com> writes:
> From: Kendra Moore <kendra.j.moore3443@gmail.com>
>
> This patch replaces the TODO for DMA_ASYNC_TX in the DMA engine
> provider documentation. The flag is automatically set by the DMA
> framework when a device supports key asynchronous memory-to-memory
> operations such as memcpy, memset, xor, pq, xor_val, and pq_val.
>
> It must not be set by drivers directly.
>
> Signed-off-by: Kendra Moore <kendra.j.moore3443@gmail.com>
> ---
> Documentation/driver-api/dmaengine/provider.rst | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
Applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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