Messages in this thread | | | Date | Wed, 11 Aug 2004 11:02:48 +1000 | From | Paul Mackerras <> | Subject | Re: AES assembler optimizations |
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David S. Miller writes:
> On sparc64, we: > > 1) Always save the full FPU state at context switch time if it > is active. > > 2) On entry to a FPU-using kernel routine, we save the FPU if > it is active.
How is that implemented? Do you have some magic to make gcc emit a call to an fpu-save routine in the prolog if the function uses the FPU? Or are you only talking about functions written in assembler?
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