powerpc/64s/exception: avoid SPR RAW scoreboard stall in real mode entry

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Move SPR reads ahead of writes. Real mode entry that is not a KVM
guest is rare these days, but bad practice propagates.

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

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Nicholas Piggin 2019-06-28 15:33:21 +10:00 • committed by Michael Ellerman

parent b0b2a93da4

commit 63d60d0c69

1 changed files with 7 additions and 7 deletions

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

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