I have a Linux kernel application running on an embedded PowerPC system. I'm looking for a way to write back all modified cache lines in the processor’s internal cache to main memory and invalidate (flush) the internal caches. I know that the x86 has an instruction that will do this (wbinvd).
Is there a way to do the same thing under PowerPC via a C function call or assembly instruction?
I know that there are PowerPC instructions like dcbt which will update the cache for that address, but I'm looking for something that will flush everything.