diff options
Diffstat (limited to 'drivers/idle/intel_idle.c')
| -rw-r--r-- | drivers/idle/intel_idle.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index f4495841bf68..fa23a7ea01ac 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -66,8 +66,6 @@ static struct cpuidle_device __percpu *intel_idle_cpuidle_devices; static unsigned long auto_demotion_disable_flags; static bool disable_promotion_to_c1e; -static bool lapic_timer_always_reliable; - struct idle_cpu { struct cpuidle_state *state_table; @@ -142,7 +140,7 @@ static __cpuidle int intel_idle(struct cpuidle_device *dev, if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED) leave_mm(cpu); - if (!static_cpu_has(X86_FEATURE_ARAT) && !lapic_timer_always_reliable) { + if (!static_cpu_has(X86_FEATURE_ARAT)) { /* * Switch over to one-shot tick broadcast if the target C-state * is deeper than C1. @@ -1562,7 +1560,7 @@ static int intel_idle_cpu_online(unsigned int cpu) { struct cpuidle_device *dev; - if (!lapic_timer_always_reliable) + if (!boot_cpu_has(X86_FEATURE_ARAT)) tick_broadcast_enable(); /* @@ -1655,16 +1653,13 @@ static int __init intel_idle_init(void) goto init_driver_fail; } - if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */ - lapic_timer_always_reliable = true; - retval = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "idle/intel:online", intel_idle_cpu_online, NULL); if (retval < 0) goto hp_setup_fail; pr_debug("Local APIC timer is reliable in %s\n", - lapic_timer_always_reliable ? "all C-states" : "C1"); + boot_cpu_has(X86_FEATURE_ARAT) ? "all C-states" : "C1"); return 0; |