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.
Hi
Does a55 have an invalidate queue?
Is it necessary that executing dmb before access shared variable in an SMP system?
Depends on the memory type. Cached or strongly ordered. In case you are not sure use it. Also I recommend the cortex-a programmers guide.