Ben,
Sorry about that, we have had some back and forth on this on the ppc
embedded list.
Not sure I understand your concern about the duplication of the fast
exception return path? Jason's patch pretty much just moved code out
of head.S into fpu.S so we dont duplicate it between head.S and
head_44x.S & head_fsl_booke.S
- kumar
On Apr 11, 2005, at 9:28 PM, Benjamin Herrenschmidt wrote:
On Mon, 2005-04-11 at 17:02 -0500, Kumar Gala wrote:
> Andrew,
>
> Moved common FPU exception handling code out of head.S so it can be
used
> by several of the sub-architectures that might of a full PowerPC
FPU.
>
> Also, uses new CONFIG_PPC_FPU define to fix alignment exception
> handling for floating point load/store instructions to only occur if
we
> have a hardware FPU.
>
> Signed-off-by: Jason McMullan <[email protected]>
> Signed-off-by: Kumar Gala <[email protected]>
Andrew, please hold on this patch, it hasn't been properly discussed
with the relevant maintainer, that is Paul Mackerras.
I can see matter for debate in there, like the whole duplication of the
fast exception return path...
It's also touching quite sensitive bits of kernel code (head.S) that
needs careful auditing and testing before beeing pushed upstream.
Ben.
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