ARM: dts: rk3288-miniarm: force VOP Big to hdmi

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

diff --git a/init/Kconfig b/init/Kconfig
index 235c7a2c0d2004f1121b7d98f4140683ab45ef53..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.
 
+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
 
@@ -1237,6 +1254,32 @@ config SCHED_AUTOGROUP
          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