Does DSPLink perform DSP-side cache coherence on message buffers?
Yes, cache coherence is performed for any messages sent using DSPLink messaging. However, if a buffer pointer is placed within a message sent using DSPLink messaging, the contents of that buffer are not kept cache-coherent, since there is no way for DSPLink to understand that the message contents are actually a buffer pointer, and not the buffer itself. In such cases, cache coherence can be performed by the application using DSP/BIOS BCACHE APIs.
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