On Thu, Aug 06, 2009 at 02:20:50AM +0200, Kenneth Johansson wrote:
> > > Before you turn off the cache you need to flush out all dirty data. best
> > > done by simply reading in 32kb of crap from somewhere. otherwise you are
> > > sure to loose at least the stack and you do not want that.
> >
> >
On Aug 5, 2009, at 5:49 PM, Kenneth Johansson wrote:
On Wed, 2009-08-05 at 01:06 +0200, Sebastian Andrzej Siewior wrote:
I've tried kexec on e300 core which should be easy since it is
possible
to disable the MMU on that core. However it does not work.
Is it not possible to disable the mmu
* Kenneth Johansson | 2009-08-06 02:20:50 [+0200]:
>> > Is it not possible to disable the mmu on all cpu's that have one ??
>>
>> No, on e500 for example it is always on. You can use large pages with
>> identity maps to make it seem like it's off, though.
>
>why do something like that ?
on e50
On Wed, 2009-08-05 at 18:47 -0500, Scott Wood wrote:
> On Thu, Aug 06, 2009 at 12:49:45AM +0200, Kenneth Johansson wrote:
> > On Wed, 2009-08-05 at 01:06 +0200, Sebastian Andrzej Siewior wrote:
> > > I've tried kexec on e300 core which should be easy since it is possible
> > > to disable the MMU on
On Thu, Aug 06, 2009 at 12:49:45AM +0200, Kenneth Johansson wrote:
> On Wed, 2009-08-05 at 01:06 +0200, Sebastian Andrzej Siewior wrote:
> > I've tried kexec on e300 core which should be easy since it is possible
> > to disable the MMU on that core. However it does not work.
>
> Is it not possible
On Wed, 2009-08-05 at 01:06 +0200, Sebastian Andrzej Siewior wrote:
> I've tried kexec on e300 core which should be easy since it is possible
> to disable the MMU on that core. However it does not work.
Is it not possible to disable the mmu on all cpu's that have one ??
> Once I disable the MMU,
* Sebastian Andrzej Siewior | 2009-08-05 01:06:06 [+0200]:
[long mail]
>Does someone have an idea?
Issue fixed, it was the ipic. The missing data while disabling the
caches was my fault because I invalidated the caches before I've flushed
them.
Sebastian
___
I've tried kexec on e300 core which should be easy since it is possible
to disable the MMU on that core. However it does not work.
Once I disable the MMU, I can't access my MBAR and print chars on the
serial port. Is this "normal" or do I have still some caches on?
After I've setup two BATs one for
