v4l2 allocated dma memory

Bing Song bing.song at nxp.com
Thu Apr 1 08:17:03 UTC 2021


Is v4l2 video decoder output dma memory cacheable or non-cacheable? I found videoconvert performance is bad with v4l2 video dma buffer output buffer. Is it possible to use cacheable v4l2 dma memory?

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