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Date: Tue, 12 May 2009 11:47:38 -0500
From: Scott Wood <scottwood@freescale.com>
To: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Subject: Re: [RFC] Hardware Breakpoint interfaces implementation for PPC64
Message-ID: <20090512164738.GA1173@b07421-ec1.am.freescale.net>
References: <20090511200355.GA17988@in.ibm.com>
	<20090512115149.GA1885@yoda.jdub.homelinux.org>
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Cc: linuxppc-dev@ozlabs.org, Benjamin Herrenschmidt <benh@au1.ibm.com>,
	"K.Prasad" <prasad@linux.vnet.ibm.com>, paulus@samba.org
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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