fix idle (arch, acpi and apm) and lockdep

[linux-2.6-omap-h63xx.git] / drivers / acpi / processor_idle.c

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index e8e2d88692368f5ea4903485aa7ca6a6b783e493..0d90ff5fd1172440b724f161b1ad51657511eb3a 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -418,13 +418,12 @@ static void acpi_processor_idle(void)
 
        cx = pr->power.state;
        if (!cx || acpi_idle_suspend) {
-               if (pm_idle_save)
-                       pm_idle_save();
-               else
+               if (pm_idle_save) {
+                       pm_idle_save(); /* enables IRQs */
+               } else {
                        acpi_safe_halt();
-
-               if (irqs_disabled())
                        local_irq_enable();
+               }
 
                return;
        }
@@ -520,10 +519,12 @@ static void acpi_processor_idle(void)
                 * Use the appropriate idle routine, the one that would
                 * be used without acpi C-states.
                 */
-               if (pm_idle_save)
-                       pm_idle_save();
-               else
+               if (pm_idle_save) {
+                       pm_idle_save(); /* enables IRQs */
+               } else {
                        acpi_safe_halt();
+                       local_irq_enable();
+               }
 
                /*
                 * TBD: Can't get time duration while in C1, as resumes
@@ -534,8 +535,6 @@ static void acpi_processor_idle(void)
                 *       skew otherwise.
                 */
                sleep_ticks = 0xFFFFFFFF;
-               if (irqs_disabled())
-                       local_irq_enable();
 
                break;
 
@@ -1487,7 +1486,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
                return 0;
        }
 
-       acpi_unlazy_tlb(smp_processor_id());
        /*
         * Must be done before busmaster disable as we might need to
         * access HPET !
@@ -1577,6 +1575,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
                return 0;
        }
 
+       acpi_unlazy_tlb(smp_processor_id());
+
        /* Tell the scheduler that we are going deep-idle: */
        sched_clock_idle_sleep_event();
        /*
@@ -1692,7 +1692,9 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
                switch (cx->type) {
                        case ACPI_STATE_C1:
                        state->flags |= CPUIDLE_FLAG_SHALLOW;
-                       state->flags |= CPUIDLE_FLAG_TIME_VALID;
+                       if (cx->entry_method == ACPI_CSTATE_FFH)
+                               state->flags |= CPUIDLE_FLAG_TIME_VALID;
+
                        state->enter = acpi_idle_enter_c1;
                        dev->safe_state = state;
                        break;