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SW_SYNC allows to run tests on the sync_file framework via debugfs on <debugfs>/sync/sw_sync Opening and closing the file triggers creation and release of a sync timeline. To create fences on this timeline the SW_SYNC_IOC_CREATE_FENCE ioctl should be used. To increment the timeline value use SW_SYNC_IOC_INC. Also it exports Sync information on <debugfs>/sync/info Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
31 lines
905 B
Text
31 lines
905 B
Text
menu "Android"
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if ANDROID
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config ASHMEM
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bool "Enable the Anonymous Shared Memory Subsystem"
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default n
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depends on SHMEM
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---help---
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The ashmem subsystem is a new shared memory allocator, similar to
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POSIX SHM but with different behavior and sporting a simpler
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file-based API.
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It is, in theory, a good memory allocator for low-memory devices,
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because it can discard shared memory units when under memory pressure.
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config ANDROID_LOW_MEMORY_KILLER
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bool "Android Low Memory Killer"
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---help---
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Registers processes to be killed when low memory conditions, this is useful
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as there is no particular swap space on android.
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The registered process will kill according to the priorities in android init
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scripts (/init.rc), and it defines priority values with minimum free memory size
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for each priority.
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source "drivers/staging/android/ion/Kconfig"
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endif # if ANDROID
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endmenu
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