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| H A D | idle.c | 40d24343 Tue Jun 13 08:05:57 CDT 2017 Nicholas Piggin <npiggin@gmail.com> powerpc/64s/idle: Run latch switch is done with MSR[EE]=0
In the idle sleep/wake code we know that MSR[EE] is clear, so we can
avoid 2 x mfmsr and 2 x mtmsr by calling the double-underscore
versions of the run latch routines which assume interrupts are already
disabled.
Acked-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
40d24343 Tue Jun 13 08:05:57 CDT 2017 Nicholas Piggin <npiggin@gmail.com> powerpc/64s/idle: Run latch switch is done with MSR[EE]=0
In the idle sleep/wake code we know that MSR[EE] is clear, so we can
avoid 2 x mfmsr and 2 x mtmsr by calling the double-underscore
versions of the run latch routines which assume interrupts are already
disabled.
Acked-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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