Re: 440EP FPU patch

[Tom Rini <trini@kernel.crashing.org>]

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..

-- 
Tom Rini
http://gate.crashing.org/~trini/