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

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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: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
This commit is contained in:
Gustavo Padovan 2016-05-31 11:33:16 -03:00 committed by Sumit Semwal
parent c483e06506
commit 31954660a7
1 changed files with 12 additions and 3 deletions
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15
drivers/dma-buf/Kconfig
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@ -1,11 +1,20 @@
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.
endmenu