help, trying to invalidate entire icache on 970

Segher Boessenkool segher at
Fri Apr 8 09:46:54 EST 2005

> Isn't dcbst a nop on 970 anyway ?

Not completely -- for example, it can in some cases cause
some coherency traffic.  When followed by a sync, I guess
it always is a noop, though.  I'm not sure; but does it
really matter?  :-)


More information about the Linuxppc64-dev mailing list