hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I7BQZ0
CVE: NA

----------------------------------------

We want to dynamically expand or shrink the affinity range of tasks
based on the CPU topology level while meeting the minimum resource
requirements of tasks.

We divide several level of affinity domains according to sched domains:

level4   * SOCKET  [                                                  ]
level3   * DIE     [                             ]
level2   * MC      [             ] [             ]
level1   * SMT     [     ] [     ] [     ] [     ]
level0   * CPU      0   1   2   3   4   5   6   7

Whether users tend to choose power saving or performance will affect
strategy of adjusting affinity, when selecting the power saving mode,
we will choose a more appropriate affinity based on the energy model
to reduce power consumption, while considering the QOS of resources
such as CPU and memory consumption, for instance, if the current task
CPU load is less than required, smart grid will judge whether to aggregate
tasks together into a smaller range or not according to energy model.

The main difference from EAS is that we pay more attention to the impact
of power consumption brought by such as cpuidle and DVFS, and classify
tasks to reduce interference and ensure resource QOS in each divided unit,
which are more suitable for general-purpose on non-heterogeneous CPUs.

        --------        --------        --------
       | group0 |      | group1 |      | group2 |
        --------        --------        --------
	   |                |              |
	   v                |              v
       ---------------------+-----     -----------------
      |                  ---v--   |   |
      |       DIE0      |  MC1 |  |   |   DIE1
      |                  ------   |   |
       ---------------------------     -----------------

We regularly count the resource satisfaction of groups, and adjust the
affinity, scheduling balance and migrating memory will be considered
based on memory location for better meetting resource requirements.
Signed-off-by: NHui Tang <tanghui20@huawei.com>
Signed-off-by: NWang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-by: NChen Hui <judy.chenhui@huawei.com>
Reviewed-by: NZhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: NZhang Changzhong <zhangchangzhong@huawei.com>