powerpc/64s/exception: simplify machine check early path

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machine_check_handle_early_common can reach machine_check_handle_early
directly now that it runs at the relocated address, so just branch
directly.

The rfi sequence is required to enable MSR[ME] but that step is moved
into a helper function, making the code easier to follow.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-14-npiggin@gmail.com

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Nicholas Piggin 2019-08-02 20:56:38 +10:00 • committed by Michael Ellerman

parent abd1f4ca2b

commit 296e753fb4

1 changed files with 22 additions and 9 deletions

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

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