powerpc/64s: Expand core idle state bits

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In preparation for adding more bits to the core idle state word, move
the lock bit up, and unlock by flipping the lock bit rather than masking
off all but the thread bits.

Add branch hints for atomic operations while we're here.

Reviewed-by: Gautham R. Shenoy <ego@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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Nicholas Piggin 2017-04-19 23:05:48 +10:00 • committed by Michael Ellerman

parent 1945bc4549

commit adbcf8d74f

2 changed files with 19 additions and 18 deletions

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4

arch/powerpc/include/asm/cpuidle.h

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33

arch/powerpc/kernel/idle_book3s.S

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