Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...

[sfrench/cifs-2.6.git] / drivers / acpi / processor_idle.c

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 60773005b8afacbe24024a9ea33e96cc578ac59d..80ffc782991631492d08c2dea2837972698e5193 100644 (file)
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -51,14 +51,6 @@
 #include <asm/apic.h>
 #endif
 
-/*
- * Include the apic definitions for x86 to have the APIC timer related defines
- * available also for UP (on SMP it gets magically included via linux/smp.h).
- */
-#ifdef CONFIG_X86
-#include <asm/apic.h>
-#endif
-
 #include <asm/io.h>
 #include <asm/uaccess.h>
 
@@ -268,6 +260,7 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
                                   struct acpi_processor_cx *cx)
 {
        struct acpi_processor_power *pwr = &pr->power;
+       u8 type = local_apic_timer_c2_ok ? ACPI_STATE_C3 : ACPI_STATE_C2;
 
        /*
         * Check, if one of the previous states already marked the lapic
@@ -276,7 +269,7 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
        if (pwr->timer_broadcast_on_state < state)
                return;
 
-       if (cx->type >= ACPI_STATE_C2)
+       if (cx->type >= type)
                pr->power.timer_broadcast_on_state = state;
 }
 
@@ -339,16 +332,18 @@ static void acpi_processor_idle(void)
        int sleep_ticks = 0;
        u32 t1, t2 = 0;
 
-       pr = processors[smp_processor_id()];
-       if (!pr)
-               return;
-
        /*
         * Interrupts must be disabled during bus mastering calculations and
         * for C2/C3 transitions.
         */
        local_irq_disable();
 
+       pr = processors[smp_processor_id()];
+       if (!pr) {
+               local_irq_enable();
+               return;
+       }
+
        /*
         * Check whether we truly need to go idle, or should
         * reschedule:
@@ -482,7 +477,7 @@ static void acpi_processor_idle(void)
 
 #ifdef CONFIG_GENERIC_TIME
                /* TSC halts in C2, so notify users */
-               mark_tsc_unstable();
+               mark_tsc_unstable("possible TSC halt in C2");
 #endif
                /* Re-enable interrupts */
                local_irq_enable();
@@ -524,7 +519,7 @@ static void acpi_processor_idle(void)
 
 #ifdef CONFIG_GENERIC_TIME
                /* TSC halts in C3, so notify users */
-               mark_tsc_unstable();
+               mark_tsc_unstable("TSC halts in C3");
 #endif
                /* Re-enable interrupts */
                local_irq_enable();