Subject: Re: 440EP FPU patch

From: Kumar Gala <[email-masked]>
Date: Thu, 31 Mar 2005 12:45:44 -0600

Tom,

On Mar 31, 2005, at 10:34 AM, Tom Rini wrote:

> On Thu, Mar 31, 2005 at 09:26:18AM -0700, Wade Farnsworth wrote:
>  > On Fri, 2005-03-18 at 12:30, Tom Rini wrote:
>  > > On Fri, Mar 18, 2005 at 01:43:11PM -0500, Jason McMullan wrote:
>  > > > On Fri, 2005-03-18 at 10:06 -0600, Kumar Gala wrote:
>  > > > > Can you build your patch for the lopec_defconfig and fix the 
> errors
> > > > > associated with enabling altivec.
>  > > > >
> > > > > Looks like you need to include asm/offset.h & asm/page.h in 
> vector.S,
> > > > > however there is another build error after that.
>  > > >
> > > > Thanks! That also found a linking bug, fixed in this patch.. 
> Please
>  > > > double check the call in 'AltiVecUnavalible' in head.S, and the 
> re-load
>  > > > of 'ctr' at the end of load_up_altivec, as I do not have an 
> AltiVec
>  > > > machine here.
>  > >
> > > No dice:
>  > > VFS: Mounted root (nfs filesystem) readonly.
>  > > Freeing unused kernel memory: 100k init 4k prep
>  > > floating point used in kernel (task=c03816b0, pc=c000d664)
> > > Doing some objdump'ing, that's the start of load_up_altivec.
> >
> > Hi Jason and Tom,
>  >
> > Has there been any more progress on this patch?
>
> Sadly no.  We got to the point where it was reliably crashing on my
> LoPEC (7400), but no time to try and fix it.  The problem should show 
> up
>  on any classic PPC box..

Is it crashing on just avec code or everything?

- kumar