> > Speaking of DELAY()... it is implemented using the processor internal
> > counter register. Is this register impacted by frequency changes? If so,
> > shouldn't you update the computed ns_per_tick delay() constant?
>
> Reading the doc again, it's said that the time base register is clocked
> at one-fourth of the bus clock. But the DFS feature divides the processor
> to system bus ratio. So, if I understand well there is no impact on the
> time base counter frequency.
Good. This is easy to check, does ntpd start complaining after running a
few minutes at `setperf=0' speed?
> Index: sys/arch/macppc/dev/dfs.c
> +#include <sys/param.h>
> +#include <sys/filedesc.h>
Could you use <sys/proc.h> instead of <sys/filedesc.h> here? This is the
preferred (yet objectionable) form of satisfying <sys/sysctl.h>
dependencies.
> +struct cfattach dfs_ca = {
> + sizeof(struct device), dfs_match, dfs_attach
This needs to be sizeof(struct dfs_softc) now. That is, unless you want
to get funny panics after dfs0 attaches.
