Rafael J. Wysocki 0c313cb207 cpuidle: menu: Fall back to polling if next timer event is near ... Commit a9ceb78bc7 (cpuidle,menu: use interactivity_req to disable polling) changed the behavior of the fallback state selection part of menu_select() so it looks at interactivity_req instead of data->next_timer_us when it makes its decision. That effectively caused polling to be used more often as fallback idle which led to significant increases of energy consumption in some cases. Commit e132b9b3bc (cpuidle: menu: use high confidence factors only when considering polling) changed that logic again to be more predictable, but that didn't help with the increased energy consumption problem. For this reason, go back to making decisions on which state to fall back to based on data->next_timer_us which is the time we know for sure something will happen rather than a prediction (which may be inaccurate and turns out to be so often enough to be problematic). However, take the target residency of the first proper idle state (C1) into account, so that state is not used as the fallback one if its target residency is greater than data->next_timer_us. Fixes: a9ceb78bc7 (cpuidle,menu: use interactivity_req to disable polling) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reported-and-tested-by: Doug Smythies <dsmythies@telus.net>		2016-03-21 15:50:28 +01:00
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governors	cpuidle: menu: Fall back to polling if next timer event is near	2016-03-21 15:50:28 +01:00
coupled.c	cpuidle: coupled: remove unused define cpuidle_coupled_lock	2016-01-27 23:08:46 +01:00
cpuidle-arm.c
cpuidle-at91.c
cpuidle-big_little.c
cpuidle-calxeda.c
cpuidle-clps711x.c	drivers/cpuidle: make cpuidle-clps711x.c explicitly non-modular	2015-12-15 00:22:21 +01:00
cpuidle-cps.c
cpuidle-exynos.c	drivers/cpuidle: make cpuidle-exynos.c explicitly non-modular	2015-12-15 00:22:22 +01:00
cpuidle-kirkwood.c
cpuidle-mvebu-v7.c	cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver	2015-10-23 12:40:48 +02:00
cpuidle-powernv.c	powerpc/powernv: remove FW_FEATURE_OPALv3 and just use FW_FEATURE_OPAL	2015-12-17 22:40:54 +11:00
cpuidle-pseries.c
cpuidle-ux500.c	drivers/cpuidle: make cpuidle-ux500.c explicitly non-modular	2015-12-15 00:22:22 +01:00
cpuidle-zynq.c
cpuidle.c	cpuidle: fix fallback mechanism for suspend to idle in absence of enter_freeze	2016-01-22 02:35:49 +01:00
cpuidle.h
driver.c
dt_idle_states.c
dt_idle_states.h
governor.c
Kconfig	cpuidle: Don't enable all governors by default	2016-01-15 22:39:58 +01:00
Kconfig.arm
Kconfig.mips
Kconfig.powerpc
Makefile
sysfs.c