[RFC] Hardware Breakpoint interfaces implementation for PPC64

[Scott Wood]

On Tue, May 12, 2009 at 07:51:49AM -0400, Josh Boyer wrote:
> On Tue, May 12, 2009 at 01:33:55AM +0530, K.Prasad wrote:
> >- The patch is currently implemented only for PPC64 architecture. Other
> >  architectures (especially Book-E implementations are expected to
> >  happen in due course).
> 
> Does this mean you will work on transitioning Book-E implementations, or that
> you expect the Book-E maintainers to?  I'm just curious.  The code as written
> relies heavily on the DABR/MSR setup that ppc64 has and Book-E unfortunately
> doesn't follow that at all.

And since there will eventually be 64-bit book E chips, we need to use
something more specific than CONFIG_PPC64 in the #ifdef (easier now than
figuring out which ones are breakpoint-related later).

-Scott