[Backport wrynose] libcamera: prefer udmabuf over dma-heaps - #482
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On Hamoa, CMA memory is currently insufficient for libcamera operation at some resolutions. Make the DMA-BUF provider priority order configurable through the runtime configuration. DmaBufAllocator now accepts an ordered list of preferred provider names; providers not listed are tried afterwards in the built-in order. When the list is empty, the historical order is preserved, so behaviour remains unchanged by default. The change is carried as a qcom-specific patch applied through a libcamera bbappend. Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com> (cherry picked from commit 5948083)
Dmitry Baryshkov (lumag)
approved these changes
Sep 17, 2026
Koen Kooi (koenkooi)
approved these changes
Sep 17, 2026
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Description
Backport of #464 to
wrynose.