ARM: dts: rockchip: add codec es8323 for rk3288 fennec

[firefly-linux-kernel-4.4.55.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index c24b6f767bf0f2a4d8a873388a5fbd59ba01c562..5d9097e2b805fa8b97c5a91031515aaae3532e99 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -999,6 +999,23 @@ config CGROUP_CPUACCT
          Provides a simple Resource Controller for monitoring the
          total CPU consumed by the tasks in a cgroup.
 
          Provides a simple Resource Controller for monitoring the
          total CPU consumed by the tasks in a cgroup.
 

+config CGROUP_SCHEDTUNE
+       bool "CFS tasks boosting cgroup subsystem (EXPERIMENTAL)"
+       depends on SCHED_TUNE
+       help
+         This option provides the "schedtune" controller which improves the
+         flexibility of the task boosting mechanism by introducing the support
+         to define "per task" boost values.
+
+         This new controller:
+         1. allows only a two layers hierarchy, where the root defines the
+            system-wide boost value and its direct childrens define each one a
+            different "class of tasks" to be boosted with a different value
+         2. supports up to 16 different task classes, each one which could be
+            configured with a different boost value
+
+         Say N if unsure.
+

 config PAGE_COUNTER
        bool
 
 config PAGE_COUNTER
        bool
 


@@ -1237,6 +1254,32 @@ config SCHED_AUTOGROUP
          desktop applications.  Task group autogeneration is currently based
          upon task session.
 
          desktop applications.  Task group autogeneration is currently based
          upon task session.
 

+config SCHED_TUNE
+       bool "Boosting for CFS tasks (EXPERIMENTAL)"
+       help
+         This option enables the system-wide support for task boosting.
+         When this support is enabled a new sysctl interface is exposed to
+         userspace via:
+            /proc/sys/kernel/sched_cfs_boost
+         which allows to set a system-wide boost value in range [0..100].
+
+         The currently boosting strategy is implemented in such a way that:
+         - a 0% boost value requires to operate in "standard" mode by
+           scheduling all tasks at the minimum capacities required by their
+           workload demand
+         - a 100% boost value requires to push at maximum the task
+           performances, "regardless" of the incurred energy consumption
+
+         A boost value in between these two boundaries is used to bias the
+         power/performance trade-off, the higher the boost value the more the
+         scheduler is biased toward performance boosting instead of energy
+         efficiency.
+
+         Since this support exposes a single system-wide knob, the specified
+         boost value is applied to all (CFS) tasks in the system.
+
+         If unsure, say N.
+

 config SYSFS_DEPRECATED
        bool "Enable deprecated sysfs features to support old userspace tools"
        depends on SYSFS
 config SYSFS_DEPRECATED
        bool "Enable deprecated sysfs features to support old userspace tools"
        depends on SYSFS


@@ -2030,13 +2073,6 @@ config INIT_ALL_POSSIBLE
          it was better to provide this option than to break all the archs
          and have several arch maintainers pursuing me down dark alleys.
 
          it was better to provide this option than to break all the archs
          and have several arch maintainers pursuing me down dark alleys.
 

-config STOP_MACHINE
-       bool
-       default y
-       depends on (SMP && MODULE_UNLOAD) || HOTPLUG_CPU
-       help
-         Need stop_machine() primitive.
-

 source "block/Kconfig"
 
 config PREEMPT_NOTIFIERS
 source "block/Kconfig"
 
 config PREEMPT_NOTIFIERS