• Locked Locked
  • Replies 4 replies
  • Subscribers 119 subscribers
  • Views 3363 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Neon power management / VFP power management

china liu
Note: This was originally posted on 24th December 2012 at http://forums.arm.com

hi, experts:

Does NEON unit have power management feature? (Similar to ARM core's DVFS function)

If NEON has power saving features, How about VFP unit?

If NEON has power saving features, so which doc will describe it?


Will NEON and VFP share some hardware funtions?(except for registers)


best wishes,
Parents
  • Arm Employee Badge
    Note: This was originally posted on 27th December 2012 at http://forums.arm.com

    Are you asking about what an implementation _could_ do, or what a particular processor _does_ do?

    Most of the processors I have worked with have the ability to separately power on/off the NEON logic to the rest of the core.  I don't know of one that allows the NEON unit have its clocked varied independently of the main processor, doesn't mean it doesn't exist though.
Reply
  • Arm Employee Badge
    Note: This was originally posted on 27th December 2012 at http://forums.arm.com

    Are you asking about what an implementation _could_ do, or what a particular processor _does_ do?

    Most of the processors I have worked with have the ability to separately power on/off the NEON logic to the rest of the core.  I don't know of one that allows the NEON unit have its clocked varied independently of the main processor, doesn't mean it doesn't exist though.
Children
No data