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| author |   Erik Gilling <konkers@android.com> | 2013-02-28 16:42:58 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-04 17:40:08 +0800 |
| commit | 9d1906e61dda982070e3910a04d9cce050f7f1a4 (patch) | |
| tree | 2efc0efecd0afe6b35358ec35b9ce2e712259a24 /drivers/staging/android/Kconfig | |
| parent | staging: sync: Add synchronization framework (diff) | |
| download | linux-dev-9d1906e61dda982070e3910a04d9cce050f7f1a4.tar.xz linux-dev-9d1906e61dda982070e3910a04d9cce050f7f1a4.zip | |
staging: sw_sync: Add cpu based sync driver
Adds a base sync driver that uses the cpu for serialization.
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robclark@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
[jstultz: Add commit message, whitespace fixes and move to
staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/android/Kconfig')
| -rw-r--r-- | drivers/staging/android/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index c95aedeff3f4..cc406cc8b8d1 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -81,6 +81,24 @@ config SYNC drivers. Sync implementations can take advantage of hardware synchronization built into devices like GPUs. +config SW_SYNC + bool "Software synchronization objects" + default n + depends on SYNC + help + A sync object driver that uses a 32bit counter to coordinate + syncrhronization. Useful when there is no hardware primitive backing + the synchronization. + +config SW_SYNC_USER + bool "Userspace API for SW_SYNC" + default n + depends on SW_SYNC + help + Provides a user space API to the sw sync object. + *WARNING* improper use of this can result in deadlocking kernel + drivers from userspace. + endif # if ANDROID endmenu |