Add pluggable CUDA linear grain payload support - #653
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Introduce host/device payload allocators, flow-options payload location, and OpenGrain/GetGrain Ex APIs so discrete flows can back grains with cuda-linear device memory, including gst testsrc/sink paths. Signed-off-by: Thomas True <ttrue@nvidia.com>
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Summary
cuda-linear) selected via flow options (payload.location/backend)OpenGrainEx/GetGrain*Expayload views for device-backed discrete flowsmxl-gst-testsrc/mxl-gst-sinkto the Ex APIs with H2D/D2H staging for CUDA payloadsTest plan
mxl-tests "[mxl flows]"fromlib/tests(includes CudaLinear / payload option cases)examples/payload-options/cuda-payload-options.jsonviamxl-gst-testsrcon a tmpfs domainGrain payload location: device)