Clock Source in hrtimer

["wilbur.chan" <wilbur512@gmail.com>]

I am planning to use  linux 2.6.24  with hrtimer enabled and with
CONFIG_NO_HZ  on mips xlr 732.


As we know, a   monotomic increasing Clock Source is required to
support hrtimer,  whose cycles could be retrieved  from
clocksource->read function.

However  on  xlr 732 ,there is only a 32 bits counter register, which
would overflow in 4s ( 2^32 / 1GHZ = 4).

How to solve this ?


Thanks in advance