[PATCH v2 1/5] drm/prime: Support dedicated DMA device for dma-buf imports

Maxime Ripard mripard at kernel.org
Fri Mar 7 13:03:04 UTC 2025


On Fri, 7 Mar 2025 09:03:59 +0100, Thomas Zimmermann wrote:
> Importing dma-bufs via PRIME requires a DMA-capable device. Devices on
> peripheral busses, such as USB, often cannot perform DMA by themselves.
> Without DMA-capable device PRIME import fails. DRM drivers for USB
> devices already use a separate DMA device for dma-buf imports. Make the
> mechanism generally available.
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard at kernel.org>

Thanks!
Maxime


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