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authorIngo Molnar <mingo@kernel.org>2014-01-13 17:37:05 +0100
committerIngo Molnar <mingo@kernel.org>2014-01-13 17:37:05 +0100
commitc9c8986847d2f4fc474c10ee08afa57e7474096d (patch)
treeb4ae6347b710fed25619df7ff9ce009e74f7ada7 /drivers
parent0bd3a173d711857fc9f583eb5825386cc08f3948 (diff)
parent7d590cca7cd2cce4ed7c47d221d6f90566653ba8 (diff)
Merge branch 'x86/idle' into sched/core
Merge these x86 specific bits - we are going to add generic bits as well. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/acpi_pad.c5
-rw-r--r--drivers/acpi/processor_idle.c15
-rw-r--r--drivers/idle/intel_idle.c11
-rw-r--r--drivers/thermal/intel_powerclamp.c4
4 files changed, 3 insertions, 32 deletions
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index fc6008fbce3..509452a62f9 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -193,10 +193,7 @@ static int power_saving_thread(void *data)
CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
stop_critical_timings();
- __monitor((void *)&current_thread_info()->flags, 0, 0);
- smp_mb();
- if (!need_resched())
- __mwait(power_saving_mwait_eax, 1);
+ mwait_idle_with_hints(power_saving_mwait_eax, 1);
start_critical_timings();
if (lapic_marked_unstable)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 644516d9bde..f90c56c8379 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -727,11 +727,6 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
if (unlikely(!pr))
return -EINVAL;
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
lapic_timer_state_broadcast(pr, cx, 1);
acpi_idle_do_entry(cx);
@@ -785,11 +780,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
if (unlikely(!pr))
return -EINVAL;
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
/*
* Must be done before busmaster disable as we might need to
* access HPET !
@@ -841,11 +831,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
}
}
- if (cx->entry_method == ACPI_CSTATE_FFH) {
- if (current_set_polling_and_test())
- return -EINVAL;
- }
-
acpi_unlazy_tlb(smp_processor_id());
/* Tell the scheduler that we are going deep-idle: */
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 797ed29a36e..6c0e0452dd9 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -377,16 +377,7 @@ static int intel_idle(struct cpuidle_device *dev,
if (!(lapic_timer_reliable_states & (1 << (cstate))))
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
- if (!current_set_polling_and_test()) {
-
- if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR))
- clflush((void *)&current_thread_info()->flags);
-
- __monitor((void *)&current_thread_info()->flags, 0, 0);
- smp_mb();
- if (!need_resched())
- __mwait(eax, ecx);
- }
+ mwait_idle_with_hints(eax, ecx);
if (!(lapic_timer_reliable_states & (1 << (cstate))))
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 8f181b3f842..e8275f2df9a 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -438,9 +438,7 @@ static int clamp_thread(void *arg)
*/
local_touch_nmi();
stop_critical_timings();
- __monitor((void *)&current_thread_info()->flags, 0, 0);
- cpu_relax(); /* allow HT sibling to run */
- __mwait(eax, ecx);
+ mwait_idle_with_hints(eax, ecx);
start_critical_timings();
atomic_inc(&idle_wakeup_counter);
}