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Commit c6baa19d authored by Suren Baghdasaryan's avatar Suren Baghdasaryan Committed by Rick Yiu
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init: Add cpu controller hierarchy to use utilclamp controller 



For devices using utilclamp create cpu controller hierarchy. Do not
remove schedtune hierarchy yet because init.rc is generic and should
work with devices which still use schedtune.

Bug: 170507876
Test: cpuctl groups worked
Signed-off-by: default avatarSuren Baghdasaryan <surenb@google.com>
Change-Id: I8494b0b64336e0c882847d555c262814bef2ffa1
parent 1b53c249

rootdir/init.rc

+29 −0
Original line number Diff line number Diff line
@@ -148,6 +148,27 @@ on init 
    chmod 0664 /dev/stune/top-app/tasks

    chmod 0664 /dev/stune/rt/tasks



    # cpuctl hierarchy for devices using utilclamp

    mkdir /dev/cpuctl/foreground

    mkdir /dev/cpuctl/background

    mkdir /dev/cpuctl/top-app

    mkdir /dev/cpuctl/rt

    chown system system /dev/cpuctl

    chown system system /dev/cpuctl/foreground

    chown system system /dev/cpuctl/background

    chown system system /dev/cpuctl/top-app

    chown system system /dev/cpuctl/rt

    chown system system /dev/cpuctl/tasks

    chown system system /dev/cpuctl/foreground/tasks

    chown system system /dev/cpuctl/background/tasks

    chown system system /dev/cpuctl/top-app/tasks

    chown system system /dev/cpuctl/rt/tasks

    chmod 0664 /dev/cpuctl/tasks

    chmod 0664 /dev/cpuctl/foreground/tasks

    chmod 0664 /dev/cpuctl/background/tasks

    chmod 0664 /dev/cpuctl/top-app/tasks

    chmod 0664 /dev/cpuctl/rt/tasks



    # Create an stune group for NNAPI HAL processes

    mkdir /dev/stune/nnapi-hal

    chown system system /dev/stune/nnapi-hal
@@ -156,6 +177,14 @@ on init 
    write /dev/stune/nnapi-hal/schedtune.boost 1

    write /dev/stune/nnapi-hal/schedtune.prefer_idle 1



    # cpuctl hierarchy for devices using utilclamp

    mkdir /dev/cpuctl/nnapi-hal

    chown system system /dev/cpuctl/nnapi-hal

    chown system system /dev/cpuctl/nnapi-hal/tasks

    chmod 0664 /dev/cpuctl/nnapi-hal/tasks

    write /dev/cpuctl/nnapi-hal/cpu.uclamp.min 1

    write /dev/cpuctl/nnapi-hal/cpu.uclamp.latency_sensitive 1



    # Create blkio group and apply initial settings.

    # This feature needs kernel to support it, and the

    # device's init.rc must actually set the correct values.