Enter winkle during offline if supported, else revert to sleep or nap.
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Shreyas B. Prabhu <shre...@linux.vnet.ibm.com>
---
arch/powerpc/platforms/powernv/smp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/smp.c
b/arch/powerpc/platforms/powernv/smp.c
index 3ad31d2..e3fc2c9 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -169,8 +169,10 @@ static void pnv_smp_cpu_kill_self(void)
while (!generic_check_cpu_restart(cpu)) {
ppc64_runlatch_off();
- /* If sleep is supported, go to sleep, instead of nap */
- if (idle_states & IDLE_USE_SLEEP)
+ /* Go to deepest supported idle state */
+ if (idle_states & IDLE_USE_WINKLE)
+ power7_winkle();
+ else if (idle_states & IDLE_USE_SLEEP)
power7_sleep();
else
power7_nap(1);
--
1.9.0
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