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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-03-27 11:30:31 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-03-27 11:30:31 +0100
commitb0df89868006517417251e02cc4ce5d4b0165885 (patch)
tree6800388c633a13f64fd1f7845ce026ca2606522f /arch/arm/kernel/process.c
parent4ba21e868f4b6e2ce5432055e206edadc6319533 (diff)
parent6c634726352f0d796a4b5e6aa9849ee5b45712ce (diff)
Merge branch 'devel-stable' into for-linus
Conflicts: arch/arm/Kconfig.debug arch/arm/plat-versatile/Kconfig Merge fixes: arch/arm/mach-integrator/Kconfig drivers/clocksource/Kconfig
Diffstat (limited to 'arch/arm/kernel/process.c')
-rw-r--r--arch/arm/kernel/process.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index e11b523db33..1531480aab4 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -61,8 +61,6 @@ extern void setup_mm_for_reboot(void);
static volatile int hlt_counter;
-#include <mach/system.h>
-
void disable_hlt(void)
{
hlt_counter++;
@@ -181,13 +179,17 @@ void cpu_idle_wait(void)
EXPORT_SYMBOL_GPL(cpu_idle_wait);
/*
- * This is our default idle handler. We need to disable
- * interrupts here to ensure we don't miss a wakeup call.
+ * This is our default idle handler.
*/
+
+void (*arm_pm_idle)(void);
+
static void default_idle(void)
{
- if (!need_resched())
- arch_idle();
+ if (arm_pm_idle)
+ arm_pm_idle();
+ else
+ cpu_do_idle();
local_irq_enable();
}
@@ -215,6 +217,10 @@ void cpu_idle(void)
cpu_die();
#endif
+ /*
+ * We need to disable interrupts here
+ * to ensure we don't miss a wakeup call.
+ */
local_irq_disable();
#ifdef CONFIG_PL310_ERRATA_769419
wmb();
@@ -222,19 +228,18 @@ void cpu_idle(void)
if (hlt_counter) {
local_irq_enable();
cpu_relax();
- } else {
+ } else if (!need_resched()) {
stop_critical_timings();
if (cpuidle_idle_call())
pm_idle();
start_critical_timings();
/*
- * This will eventually be removed - pm_idle
- * functions should always return with IRQs
- * enabled.
+ * pm_idle functions must always
+ * return with IRQs enabled.
*/
WARN_ON(irqs_disabled());
+ } else
local_irq_enable();
- }
}
leds_event(led_idle_end);
rcu_idle_exit();