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Commit 62304fb1 authored by Gustavo Padovan's avatar Gustavo Padovan Committed by Greg Kroah-Hartman
Browse files

dma-buf/sync_file: de-stage sync_file 



sync_file is useful to connect one or more fences to the file. The file is
used by userspace to track fences between drivers that share DMA bufs.

Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 460bfc41

drivers/Kconfig

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@@ -114,6 +114,8 @@ source "drivers/rtc/Kconfig" 


source "drivers/dma/Kconfig"



source "drivers/dma-buf/Kconfig"



source "drivers/dca/Kconfig"



source "drivers/auxdisplay/Kconfig"

drivers/dma-buf/Kconfig

0 → 100644
+11 −0
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menu "DMABUF options"



config SYNC_FILE

	bool "sync_file support for fences"

	default n

	select ANON_INODES

	select DMA_SHARED_BUFFER

	---help---

	  This option enables the fence framework synchronization to export

	  sync_files to userspace that can represent one or more fences.

endmenu

drivers/dma-buf/Makefile

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obj-y := dma-buf.o fence.o reservation.o seqno-fence.o

obj-$(CONFIG_SYNC_FILE)		+= sync_file.o

drivers/staging/android/Kconfig

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@@ -38,6 +38,7 @@ config SW_SYNC 
	bool "Software synchronization objects"

	default n

	depends on SYNC

	depends on SYNC_FILE

	---help---

	  A sync object driver that uses a 32bit counter to coordinate

	  synchronization.  Useful when there is no hardware primitive backing