[GIT PULL] scheduler changes for v4.21

[Ingo Molnar]

Linus,

Please pull the latest sched-core-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-for-linus

   # HEAD: 732cd75b8c920d3727e69957b14faa7c2d7c3b75 sched/fair: Select an energy-efficient CPU on task wake-up

The main changes in this cycle were:

 - Introduce "Energy Aware Scheduling" - by Quentin Perret. This is a 
   coherent topology description of CPUs in cooperation with the PM 
   subsystem, with the goal to schedule more energy-efficiently on 
   assymetric SMP platform - such as waking up tasks to the more 
   energy-efficient CPUs first, as long as the system isn't 
   oversubscribed.

   For details of the design, see:

      https://marc.info/?l=linux-kernel&m=153243513908731&w=2

 - Misc cleanups and smaller enhancements.

 Thanks,

	Ingo

------------------>
Ingo Molnar (1):
      sched: Fix various typos in comments

Morten Rasmussen (1):
      sched/fair: Add over-utilization/tipping point indicator

Muchun Song (2):
      sched/core: Introduce set_next_task() helper for better code readability
      sched/fair: Make some variables static

Patrick Bellasi (2):
      sched/fair: Mask UTIL_AVG_UNCHANGED usages
      sched/fair: Add lsub_positive() and use it consistently

Quentin Perret (11):
      sched/topology: Relocate arch_scale_cpu_capacity() to the internal header
      sched/cpufreq: Prepare schedutil for Energy Aware Scheduling
      PM: Introduce an Energy Model management framework
      sched/topology: Reference the Energy Model of CPUs when available
      sched/topology: Add lowest CPU asymmetry sched_domain level pointer
      sched/topology: Disable EAS on inappropriate platforms
      sched/topology: Make Energy Aware Scheduling depend on schedutil
      sched/toplogy: Introduce the 'sched_energy_present' static key
      sched/fair: Clean-up update_sg_lb_stats parameters
      sched/fair: Introduce an energy estimation helper function
      sched/fair: Select an energy-efficient CPU on task wake-up

Valentin Schneider (2):
      sched/fair: Clean up load_balance() condition
      sched/fair: Don't increase sd->balance_interval on newidle balance

Vincent Guittot (1):
      sched/topology: Remove the ::smt_gain field from 'struct sched_domain'

Viresh Kumar (2):
      sched/core: Create task_has_idle_policy() helper
      sched/core: Clean up the #ifdef block in add_nr_running()

Yangtao Li (1):
      sched/core: Remove unnecessary unlikely() in push_*_task()


 drivers/cpufreq/cpufreq.c        |   1 +
 include/linux/cpufreq.h          |   8 +
 include/linux/energy_model.h     | 187 +++++++++++++++++++
 include/linux/sched.h            |   4 +-
 include/linux/sched/cpufreq.h    |   6 +
 include/linux/sched/isolation.h  |   4 +-
 include/linux/sched/mm.h         |   2 +-
 include/linux/sched/stat.h       |   2 +-
 include/linux/sched/topology.h   |  17 +-
 kernel/power/Kconfig             |  15 ++
 kernel/power/Makefile            |   2 +
 kernel/power/energy_model.c      | 201 ++++++++++++++++++++
 kernel/sched/core.c              |   6 +-
 kernel/sched/cpufreq_schedutil.c |  90 +++++++--
 kernel/sched/cputime.c           |   2 +-
 kernel/sched/deadline.c          |  25 ++-
 kernel/sched/debug.c             |   2 +-
 kernel/sched/fair.c              | 385 +++++++++++++++++++++++++++++++++------
 kernel/sched/isolation.c         |  14 +-
 kernel/sched/rt.c                |  28 ++-
 kernel/sched/sched.h             |  97 +++++++---
 kernel/sched/topology.c          | 231 ++++++++++++++++++++++-
 22 files changed, 1179 insertions(+), 150 deletions(-)
 create mode 100644 include/linux/energy_model.h
 create mode 100644 kernel/power/energy_model.c