Re: [PATCH 14/14] powerpc/64s: idle runlatch switch is done with MSR[EE]=0

* Nicholas Piggin [2017-06-12 09:58:35]: > 2*mfmsr and 2*mtmsr can be avoided in the idle sleep/wake code > because we know the MSR[EE] is clear. Good optimization for powernv. > Signed-off-by: Nicholas Piggin Acked-by: Vaidyanathan Srinivasan

[PATCH 14/14] powerpc/64s: idle runlatch switch is done with MSR[EE]=0

2*mfmsr and 2*mtmsr can be avoided in the idle sleep/wake code because we know the MSR[EE] is clear. Signed-off-by: Nicholas Piggin --- arch/powerpc/platforms/powernv/idle.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git

[PATCH 14/14] powerpc/64s: idle runlatch switch is done with MSR[EE]=0

2*mfmsr and 2*mtmsr can be avoided in the idle sleep/wake code because we know the MSR[EE] is clear. Signed-off-by: Nicholas Piggin --- arch/powerpc/platforms/powernv/idle.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git