[PATCH] cpuidle/powernv : init all present cpus for deep states

From: Akshay Adiga
Date: Wed May 16 2018 - 07:29:51 EST


Init all present cpus for deep states instead of "all possible" cpus.
Init fails if the possible cpu is gaurded. Resulting in making only
non-deep states available for cpuidle/hotplug.

Signed-off-by: Akshay Adiga <akshay.adiga@xxxxxxxxxxxxxxxxxx>
---
arch/powerpc/platforms/powernv/idle.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index 1f12ab1..1c5d067 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -79,7 +79,7 @@ static int pnv_save_sprs_for_deep_states(void)
uint64_t msr_val = MSR_IDLE;
uint64_t psscr_val = pnv_deepest_stop_psscr_val;

- for_each_possible_cpu(cpu) {
+ for_each_present_cpu(cpu) {
uint64_t pir = get_hard_smp_processor_id(cpu);
uint64_t hsprg0_val = (uint64_t)paca_ptrs[cpu];

@@ -814,7 +814,7 @@ static int __init pnv_init_idle_states(void)
int cpu;

pr_info("powernv: idle: Saving PACA pointers of all CPUs in their thread sibling PACA\n");
- for_each_possible_cpu(cpu) {
+ for_each_present_cpu(cpu) {
int base_cpu = cpu_first_thread_sibling(cpu);
int idx = cpu_thread_in_core(cpu);
int i;
--
2.5.5