From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 2/2] powerpc/44x: Fix xmon single step on PowerPC 44x
Date: Thu, 24 Sep 2009 08:40:36 +1000 [thread overview]
Message-ID: <1253745636.7103.341.camel@pasglop> (raw)
In-Reply-To: <20090923223539.GJ14261@zod.rchland.ibm.com>
On Wed, 2009-09-23 at 18:35 -0400, Josh Boyer wrote:
> >Any reason why that couldn't be in CONFIG_BOOKE ?
>
> Off the top of my head, no. I haven't tested on 40x yet though. Will try
> and do that and revise.
Does 40x have CONFIG_BOOKE ? I was thinking more about FSL etc... but
yeah, 40x is worth having a look too.
> It could be. I have no external debugger, thus no way to check it. You don't
> get an exception without IDM set though, so it won't trap back into xmon like
> it should. This is how we did it in arch/ppc (which isn't always a great
> thing) as well.
Ok, let's leave it there for now.
> I don't see how you could get it working without IDM, unless you inserted a
> trap (aka breakpoint) every time. That seems sort of suboptimal when we have
> the IC event we can use.
The question is more whether IDM should be set once for all at boot (or
not) but let's ignore that for now.
Ben.
next prev parent reply other threads:[~2009-09-23 22:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 13:48 [PATCH 0/2] 4xx xmon fixes Josh Boyer
2009-09-23 13:51 ` [PATCH 1/2] powerpc/4xx: Fix erroneous xmon warning on PowerPC 4xx Josh Boyer
2009-09-23 13:51 ` [PATCH 2/2] powerpc/44x: Fix xmon single step on PowerPC 44x Josh Boyer
2009-09-23 21:34 ` Benjamin Herrenschmidt
2009-09-23 22:35 ` Josh Boyer
2009-09-23 22:40 ` Benjamin Herrenschmidt [this message]
2009-09-23 23:22 ` David Gibson
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