PM Debug Filesystem


I was hoping someone could shed some light on how to interpret the
contents of the following files in the pm_debug filesystem:

pm_debug/registers/n where n = 1, 2, current

Obviously, 'count' and 'time' show the number of counts and time spent
in OFF mode, RETENTION mode, INACTIVE mode, and ON mode, respectively,
for each core in the system. However, I don't know how to interpret
the lower lines with the following syntax (using the MPU as an

mpu_clkdm->mpu_pwrdm (0)

Also, I have no idea what the contents of the register files mean
other than the values of some registers within each core are
displayed. What are these registers? What do their contents tell me?
If someone could help me with that or point me to a document that
explains it I would appreciate it.