7447A strange problem with MSR:POW (WAS: can't boot 2.6.17-rc1)

[Olof Johansson]

On Tue, Apr 18, 2006 at 04:32:46PM +1000, Paul Mackerras wrote:

> > understand now why you were talking about putting the code in the exit
> > path on irc ... I don't like it that way.... Also, if you want to keep
> > it, maybe use a separate CONFIG_PPC_970STYLE_NAP or something that gets
> > selected by platforms that can do it ?
> 
> The config option makes sense.

How about a CPU feature bit instead? That way it's possible to build a
multiplatform kernel without getting the overhead on other platforms.
4 nops should be manageable?


-Olof