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ION buffer

hello！

I want to konw，when i using ION buffer，how to update the data on GPU bufffer,which twice or more! I create the buffer with clImportMemoryARM in the first time.And the src will updating,Did i need use mmap to update the data of GPU buffer?

Top replies

Kévin Petit over 5 years ago +1 verified

Hello, Data consistency and visibility is managed by the OpenCL driver in that case. Each time you flush a group of kernels together the driver will make the GPU's view of the buffer(s) current before...