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powerpc/64s: Expand core idle state bits
authorNicholas Piggin <npiggin@gmail.com>
Wed, 19 Apr 2017 13:05:48 +0000 (23:05 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Sun, 23 Apr 2017 10:31:49 +0000 (20:31 +1000)
commitadbcf8d74f4609e142b01520afa173bfe911122b
treebbf780dbc1abca864c5d3ef071008478e991f601tree | snapshot (tar.gz zip)
parent1945bc4549e5cb1f9aa873ec29191aa54dc851d2commit | diff
powerpc/64s: Expand core idle state bits

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>
arch/powerpc/include/asm/cpuidle.h diff | blob | blame | history
arch/powerpc/kernel/idle_book3s.S diff | blob | blame | history