aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/x86/kernel/apic_64.c3
-rw-r--r--kernel/time/tick-broadcast.c18
2 files changed, 4 insertions, 17 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 09b82093bc75..2250c654eacc 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -974,15 +974,12 @@ void __init setup_boot_APIC_clock (void)
974 */ 974 */
975void __cpuinit check_boot_apic_timer_broadcast(void) 975void __cpuinit check_boot_apic_timer_broadcast(void)
976{ 976{
977 struct clock_event_device *levt = &per_cpu(lapic_events, boot_cpu_id);
978
979 if (!disable_apic_timer || 977 if (!disable_apic_timer ||
980 (lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY)) 978 (lapic_clockevent.features & CLOCK_EVT_FEAT_DUMMY))
981 return; 979 return;
982 980
983 printk(KERN_INFO "AMD C1E detected late. Force timer broadcast.\n"); 981 printk(KERN_INFO "AMD C1E detected late. Force timer broadcast.\n");
984 lapic_clockevent.features |= CLOCK_EVT_FEAT_DUMMY; 982 lapic_clockevent.features |= CLOCK_EVT_FEAT_DUMMY;
985 levt->features |= CLOCK_EVT_FEAT_DUMMY;
986 983
987 local_irq_enable(); 984 local_irq_enable();
988 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &boot_cpu_id); 985 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_FORCE, &boot_cpu_id);
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index fab9dd8bbd6b..8cfb8b2ce773 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -222,20 +222,8 @@ static void tick_do_broadcast_on_off(void *why)
222 if (!dev || !(dev->features & CLOCK_EVT_FEAT_C3STOP)) 222 if (!dev || !(dev->features & CLOCK_EVT_FEAT_C3STOP))
223 goto out; 223 goto out;
224 224
225 /* 225 if (!tick_device_is_functional(dev))
226 * Defect device ? 226 goto out;
227 */
228 if (!tick_device_is_functional(dev)) {
229 /*
230 * AMD C1E wreckage fixup:
231 *
232 * Device was registered functional in the first
233 * place. Now the secondary CPU detected the C1E
234 * misfeature and notifies us to fix it up
235 */
236 if (*reason != CLOCK_EVT_NOTIFY_BROADCAST_FORCE)
237 goto out;
238 }
239 227
240 switch (*reason) { 228 switch (*reason) {
241 case CLOCK_EVT_NOTIFY_BROADCAST_ON: 229 case CLOCK_EVT_NOTIFY_BROADCAST_ON:
@@ -246,6 +234,8 @@ static void tick_do_broadcast_on_off(void *why)
246 clockevents_set_mode(dev, 234 clockevents_set_mode(dev,
247 CLOCK_EVT_MODE_SHUTDOWN); 235 CLOCK_EVT_MODE_SHUTDOWN);
248 } 236 }
237 if (*reason == CLOCK_EVT_NOTIFY_BROADCAST_FORCE)
238 dev->features |= CLOCK_EVT_FEAT_DUMMY;
249 break; 239 break;
250 case CLOCK_EVT_NOTIFY_BROADCAST_OFF: 240 case CLOCK_EVT_NOTIFY_BROADCAST_OFF:
251 if (cpu_isset(cpu, tick_broadcast_mask)) { 241 if (cpu_isset(cpu, tick_broadcast_mask)) {