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authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-10-25 11:06:04 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-10-25 11:06:04 +0300
commit0fc4f78f44e6c6148cee32456f0d0023ec1c1fd8 (patch)
tree71c906207227dd8753a0191db9304035ec3471a4 /drivers/dma-buf/Kconfig
parent78010cd9736ec571796f4404524ed575b81238b9 (diff)
parent5481e27f6fd06b7cb902072e81d6b083db8155eb (diff)
downloadlinux-0fc4f78f44e6c6148cee32456f0d0023ec1c1fd8.tar.xz
Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc
Backmerge latest drm-next to have a baseline for the s/fence/dma_fence/ patch from Chris. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/dma-buf/Kconfig')
-rw-r--r--drivers/dma-buf/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index 25bcfa0b474f..2585821b24ab 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -17,4 +17,17 @@ config SYNC_FILE
Files fds, to the DRM driver for example. More details at
Documentation/sync_file.txt.
+config SW_SYNC
+ bool "Sync File Validation 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.
+
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