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Subject: Re: fsqrt
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <galak@kernel.crashing.org>
Date: Sat, 08 Jun 2013 09:25:24 +1000
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On Sat, 2013-06-08 at 09:23 +1000, Benjamin Herrenschmidt wrote:
> Ok, thinking out loud... looks like we might be able to just use existing 
> math-emu for that. From what I can tell, all it needs (other than enabling
> the config option), is a call to flush_fp_to_thread(current);
> 
> While talking math-emu... we seem to have some duplication between the
> code on do_mathemu which can be compiled without CONFIG_MATH_EMULATION and
> in this case only just emulates loads/stores/fmr and the code in
> arch/powerpc/kernel/softemu8xx.c.
> 
> Is there any reason we can't just get rid of the latter ?

Or just git completely rid of that "minimal emulation" ...

Cheers,
Ben.