i.MX Processors中的主题 Performance Monitoring Unit (PMU) on SABRE Lite i.MX6 Development Board

Performance Monitoring Unit (PMU) on SABRE Lite i.MX6 Development Board

mohamad-ahmad — Tue, 10 May 2016 15:02:15 GMT

hello,

I will buy the SABRE Development Board, which is based on the i.MX 6 processor. And my work on it is based on the architecture and I want to access to the PMU. So my question is if someone have try something like that by accessing to the PMU and extracting data from the available counters.

best regards,

MHD

Re: Performance Monitoring Unit (PMU) on SABRE Lite i.MX6 Development Board

BiyongSUN — Wed, 11 May 2016 06:38:44 GMT

PMU is part of ARM unit. It is not special for i.MX.
You'd better to check with ARM website.

Because it is very common. Linux has make it as module.

You can enable it.

If you check the code especially the assembly code for enabling PMU, you will find exacly what ARM says in ARM documents.

Re: Performance Monitoring Unit (PMU) on SABRE Lite i.MX6 Development Board

mohamad-ahmad — Wed, 11 May 2016 09:36:54 GMT

I agree with you that PMU is part of ARM unit. but what I like to know that if someone have tested the PMU unit on the SABRE Development Board. By the way, thank you.

Re: Performance Monitoring Unit (PMU) on SABRE Lite i.MX6 Development Board

mohamad-ahmad — Wed, 11 May 2016 09:40:52 GMT

I agree with you that PMU is part of ARM unit. but what I like to know that if someone have tested the PMU unit on the SABRE Development Board. By the way, thank you.