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| author |   Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2016-08-11 12:26:44 -0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-15 16:41:46 +0200 |
| commit | 35538d7822e86cb38015c21bb708a433f8814af0 (patch) | |
| tree | 36aa2ccfe355aa93ad345715988a36ceba2498ea /drivers/staging/android/Kconfig | |
| parent | staging/android: add Doc for SW_SYNC ioctl interface (diff) | |
| download | linux-dev-35538d7822e86cb38015c21bb708a433f8814af0.tar.xz linux-dev-35538d7822e86cb38015c21bb708a433f8814af0.zip | |
dma-buf/sw_sync: de-stage SW_SYNC
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>
Diffstat (limited to 'drivers/staging/android/Kconfig')
| -rw-r--r-- | drivers/staging/android/Kconfig | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 06e41d24ec62..6c00d6f765c6 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -24,19 +24,6 @@ config ANDROID_LOW_MEMORY_KILLER scripts (/init.rc), and it defines priority values with minimum free memory size for each priority. -config SW_SYNC - bool "Software synchronization framework" - default n - depends on SYNC_FILE - depends on DEBUG_FS - ---help--- - A sync object driver that uses a 32bit counter to coordinate - synchronization. Useful when there is no hardware primitive backing - the synchronization. - - WARNING: improper use of this can result in deadlocking kernel - drivers from userspace. Intended for test and debug only. - source "drivers/staging/android/ion/Kconfig" endif # if ANDROID |