[PATCH 2/2] powerpc/44x: Fix xmon single step on PowerPC 44x
David Gibson
david at gibson.dropbear.id.au
Thu Sep 24 09:22:58 EST 2009
On Thu, Sep 24, 2009 at 07:34:34AM +1000, Benjamin Herrenschmidt wrote:
> On Wed, 2009-09-23 at 09:51 -0400, Josh Boyer wrote:
[snip]
> > +static int do_step(struct pt_regs *regs)
> > +{
> > + regs->msr |= MSR_DE;
> > + mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_IC | DBCR0_IDM);
>
> I'm not sure about setting IDM... Won't that be a problem if you have
> an external debugger connected ?
Not in theory. It should be possible to set both IDM and EDM
simultaneously.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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