[Sound-open-firmware] Zephyr memory allocation from heap

Hi guys,

Did you encountered any problems with memory allocations when switching to Zephyr?

I'm facing a very strange issue with a playback pipeline with module adapter (MP3) where it looks like the DAI hits underruns as soon as I start the pipeline.

With normal PCM playback everything works fine.

I think it might be a problem in the sense Zephyr allocates memory and/or Cadence memory alignment requirements?

Looks like as soon as I change this:

-#define PLATFORM_DCACHE_ALIGN sizeof(void *) +#define PLATFORM_DCACHE_ALIGN 32

everything seems to work.

But I cannot find any logical explanation.