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Commit 31954660 authored by Gustavo Padovan's avatar Gustavo Padovan Committed by Sumit Semwal
Browse files

dma-buf/sync_file: improve Kconfig description for Sync Files 



We've got a complaint saying that the description was quite obtuse and
indeed it was. This patch tries to improve it.

Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: default avatarSumit Semwal <sumit.semwal@linaro.org>
parent c483e065

drivers/dma-buf/Kconfig

+12 −3
Original line number Diff line number Diff line 
menu "DMABUF options"



config SYNC_FILE

	bool "sync_file support for fences"

	bool "Explicit Synchronization Framework"

	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.

	  The Sync File Framework adds explicit syncronization via

	  userspace. It enables send/receive 'struct fence' objects to/from

	  userspace via Sync File fds for synchronization between drivers via

	  userspace components. It has been ported from Android.



	  The first and main user for this is graphics in which a fence is

	  associated with a buffer. When a job is submitted to the GPU a fence

	  is attached to the buffer and is transferred via userspace, using Sync

	  Files fds, to the DRM driver for example. More details at

	  Documentation/sync_file.txt.



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