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audio HAL: SELinux changes for Spatial Audio optimization

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Add CAP_SYS_NICE.
Reduce glitches caused by core migration.
Reduce power consumption as Spatializer Effect is DSP compute bound.

Test: instrumented
Test: adb shell 'uclampset -a -p $(pgrep -of android.hardware.audio.service)'
Test: adb shell cat "/proc/$(adb shell pgrep -of android.hardware.audio.service)/status"
Test: adb shell 'ps -Tl -p $(pgrep -of android.hardware.audio.service)'
Bug: 181148259
Bug: 260918856
Bug: 261228892
Bug: 261686532
Bug: 262803152
Ignore-AOSP-First: tm-qpr-dev fix, will move to AOSP afterwards.
Change-Id: Id5f052116834034a9e4fd5c3adf17d3d7ef6610a
This commit is contained in:
Andy Hung 2022-12-01 13:45:09 -08:00
parent 3299216872
commit 2461bf39bd
4 changed files with 16 additions and 0 deletions
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5
prebuilts/api/33.0/private/property_contexts
View file

@ -347,6 +347,11 @@ audio.deep_buffer.media u:object_r:audio_config_prop:s0 exact bool
audio.offload.video u:object_r:audio_config_prop:s0 exact bool
audio.offload.min.duration.secs u:object_r:audio_config_prop:s0 exact int
# spatializer tuning
audio.spatializer.priority u:object_r:audio_config_prop:s0 exact int
audio.spatializer.effect.affinity u:object_r:audio_config_prop:s0 exact int
audio.spatializer.effect.util_clamp_min u:object_r:audio_config_prop:s0 exact int
ro.audio.ignore_effects u:object_r:audio_config_prop:s0 exact bool
ro.audio.monitorRotation u:object_r:audio_config_prop:s0 exact bool
ro.audio.offload_wakelock u:object_r:audio_config_prop:s0 exact bool

3
prebuilts/api/33.0/public/hal_audio.te
View file

@ -23,6 +23,9 @@ allow hal_audio dumpstate:fifo_file write;
# Needed to allow sound trigger hal to access shared memory from apps.
allow hal_audio_server appdomain:fd use;
# allow self to set scheduler (and allows Binder RT PI)
allow hal_audio_server self:global_capability_class_set sys_nice;
# allow hal audio to use vnbinder
vndbinder_use(hal_audio)

5
private/property_contexts
View file

@ -347,6 +347,11 @@ audio.deep_buffer.media u:object_r:audio_config_prop:s0 exact bool
audio.offload.video u:object_r:audio_config_prop:s0 exact bool
audio.offload.min.duration.secs u:object_r:audio_config_prop:s0 exact int
# spatializer tuning
audio.spatializer.priority u:object_r:audio_config_prop:s0 exact int
audio.spatializer.effect.affinity u:object_r:audio_config_prop:s0 exact int
audio.spatializer.effect.util_clamp_min u:object_r:audio_config_prop:s0 exact int
ro.audio.ignore_effects u:object_r:audio_config_prop:s0 exact bool
ro.audio.monitorRotation u:object_r:audio_config_prop:s0 exact bool
ro.audio.offload_wakelock u:object_r:audio_config_prop:s0 exact bool

3
public/hal_audio.te
View file

@ -23,6 +23,9 @@ allow hal_audio dumpstate:fifo_file write;
# Needed to allow sound trigger hal to access shared memory from apps.
allow hal_audio_server appdomain:fd use;
# allow self to set scheduler (and allows Binder RT PI)
allow hal_audio_server self:global_capability_class_set sys_nice;
# allow hal audio to use vnbinder
vndbinder_use(hal_audio)