CMEM configuration

Alyona

Hello,

Where can I find a proper description how to configure CMEM module to launch example-application (from DVSDK) and any other applications without any problems and errors caused by inappropriate memory mapping?

I tried to launch it without configuring pools (all to heap) but still it doesn't work... The command to upload the module was:

modprobe cmemk phys_start=0x83C00000 phys_end=0x88000000 allowOverlap=1 useHeapIfPoolUnavailable=1

What is the problem with it?

over 12 years ago

0 sujit mahapatro over 12 years ago

Genius 3930 points

Can you post the error message's you are getting.

0 Alyona over 12 years ago in reply to sujit mahapatro

Expert 1295 points

Well, I didn't save the log but it was smth like "Can't allocate a buffer/a pool that suits xxx byte". I overcome it by allocating consequently those pools that it asks, but how could I acknowledge all necessary pools beforehand?

0 Prabhakar Lad over 12 years ago in reply to Alyona

Guru 11260 points

Hi,

Refer this link http://processors.wiki.ti.com/index.php/Changing_the_DVEVM_memory_map#Sizing_and_partitioning_CMEM_memory for the explanation.

Regards,

--Prabhakar Lad

0 Alyona over 12 years ago in reply to Prabhakar Lad

Expert 1295 points

I have thoroughly read all these (and not just once), but the problem is that it doesn't give any specific instructions to count pools.

For example we have an application that uses 2 codecs. How can we evaluate this? The article only gives the idea that pools depend on the number of codecs.

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CMEM configuration