How to use OCRAM in Linux user space?

[dehuanxin]

I'm writing some signal processing code for IMX6Q.

The performance requirement is tight and I want to use OCRAM to maximize throughput.

Questions:

1) Is OCRAM currently used by kernel or kernel drivers?

2) How shall I allocate/manage OCRAM memory in user space?

Thank you.

[Yuri · Accepted solution]

Hello,

  Hardly OCRAM using will provide performance improvement.

Really the DDR operations on i.MX6 are more rapid than OCRAM ones,
because DRAM frequencies are higher and burst nature of DDR.

   Also, OCRAM is used by Linux itself.

Have a great day,
Yuri

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