[PATCH] hp-timing for ppc32/64

[Benjamin Herrenschmidt]

> The 601 Real Time Clock (RTC) was readable in user state that would be 
> simpler (just a multiple and an add) than implementing the syscalls. Did 
> 403GX have RTC? Google can't find any docs for the 403GX.

No, it has a timebase but it's accessed via some SPRs instead of the
normal instructions. I don't know if it's accessible from user space.
It's an IBM chip so it should be possible to find docs there...

Ben.