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init: Add cpu controller hierarchy to use utilclamp controller

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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: Suren Baghdasaryan <surenb@google.com>
Change-Id: I8494b0b64336e0c882847d555c262814bef2ffa1
This commit is contained in:
Suren Baghdasaryan 2020-10-13 10:41:00 -07:00 • committed by Rick Yiu
parent 1b53c2496d
commit c6baa19d6c
1 changed files with 29 additions and 0 deletions
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29
rootdir/init.rc
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@ -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.