[PATCH] powerpc/85xx: enable the math emulation for the corenet64_smp_defconfig

[Kevin Hao]

On Thu, Jul 11, 2013 at 11:04:06AM +0100, David Laight wrote:
> > > It'd also be nice if we had an option to only include the portions
> > > of math-emu that are known to be missing in some CPUs (excluding
> > > CPUs that are missing the entire FPU, of course).  Besides its
> > > effect on kernel image size, in my experience math-emu adds a
> > > non-trivial amount of time to a kernel build.
> > 
> > Sounds reasonable. I will give it a try.
> 
> It also ought to be possible to use the FPU when emulating the
> missing instructions - rather than using the full 'soft' FPU.

Yes, it is another option. But it may seem a bit risky to do these
floating point arithmetic in kernel space. Do we really want do that?

Thanks,
Kevin

> 
> 	David
> 
> 
> 
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