powerpc/powernv/idle: Restore CIABR after idle for Power9

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On Power9, CIABR is lost after idle. This means that instruction
breakpoints set by xmon which use CIABR do not work. Fix this by
restoring CIABR after idle.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207010519.15597-2-jniethe5@gmail.com

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Jordan Niethe 2020-12-07 12:05:19 +11:00 • committed by Michael Ellerman

parent 4bb3219837

commit 250ad7a45b

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arch/powerpc/platforms/powernv/idle.c

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