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authorLen Brown <len.brown@intel.com>2009-04-24 01:35:08 -0400
committerLen Brown <len.brown@intel.com>2009-04-24 01:35:08 -0400
commitf752a091abd1f9d38f926823bfd5c8480dd1132b (patch)
treeace3b9ae356ac88c583678ad3e40cc2b6a7fb5a0 /drivers/acpi
parent6e6c348fb23122c6faf89ef10f1b9f034dba0da5 (diff)
parent92614610774072ea68131f16e024ee8fc15be9be (diff)
Merge branch 'idle' into release
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/processor_idle.c19
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 6fe121434ffb..eed3b458ebac 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -581,6 +581,11 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
581 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) { 581 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
582 struct acpi_processor_cx *cx = &pr->power.states[i]; 582 struct acpi_processor_cx *cx = &pr->power.states[i];
583 583
584#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
585 /* TSC could halt in idle, so notify users */
586 if (tsc_halts_in_c(cx->type))
587 mark_tsc_unstable("TSC halts in idle");;
588#endif
584 switch (cx->type) { 589 switch (cx->type) {
585 case ACPI_STATE_C1: 590 case ACPI_STATE_C1:
586 cx->valid = 1; 591 cx->valid = 1;
@@ -657,11 +662,9 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
657 662
658 seq_printf(seq, "active state: C%zd\n" 663 seq_printf(seq, "active state: C%zd\n"
659 "max_cstate: C%d\n" 664 "max_cstate: C%d\n"
660 "bus master activity: %08x\n"
661 "maximum allowed latency: %d usec\n", 665 "maximum allowed latency: %d usec\n",
662 pr->power.state ? pr->power.state - pr->power.states : 0, 666 pr->power.state ? pr->power.state - pr->power.states : 0,
663 max_cstate, (unsigned)pr->power.bm_activity, 667 max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
664 pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
665 668
666 seq_puts(seq, "states:\n"); 669 seq_puts(seq, "states:\n");
667 670
@@ -871,11 +874,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
871 kt2 = ktime_get_real(); 874 kt2 = ktime_get_real();
872 idle_time = ktime_to_us(ktime_sub(kt2, kt1)); 875 idle_time = ktime_to_us(ktime_sub(kt2, kt1));
873 876
874#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
875 /* TSC could halt in idle, so notify users */
876 if (tsc_halts_in_c(cx->type))
877 mark_tsc_unstable("TSC halts in idle");;
878#endif
879 sleep_ticks = us_to_pm_timer_ticks(idle_time); 877 sleep_ticks = us_to_pm_timer_ticks(idle_time);
880 878
881 /* Tell the scheduler how much we idled: */ 879 /* Tell the scheduler how much we idled: */
@@ -989,11 +987,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
989 spin_unlock(&c3_lock); 987 spin_unlock(&c3_lock);
990 } 988 }
991 989
992#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
993 /* TSC could halt in idle, so notify users */
994 if (tsc_halts_in_c(ACPI_STATE_C3))
995 mark_tsc_unstable("TSC halts in idle");
996#endif
997 sleep_ticks = us_to_pm_timer_ticks(idle_time); 990 sleep_ticks = us_to_pm_timer_ticks(idle_time);
998 /* Tell the scheduler how much we idled: */ 991 /* Tell the scheduler how much we idled: */
999 sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS); 992 sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);