powerpc/64s: SLB miss already has CTR saved for relocatable kernel

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The EXCEPTION_PROLOG_1 used by SLB miss already saves CTR when the
kernel is built with CONFIG_RELOCATABLE. So it does not have to be
saved and reloaded when branching to slb_miss_realmode. It can be
restored from the PACA as usual.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Nicholas Piggin 2017-05-21 23:15:44 +10:00 • committed by Michael Ellerman

parent 7c28f04828

commit fe5482c043

1 changed files with 1 additions and 8 deletions

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arch/powerpc/kernel/exceptions-64s.S

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