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| author | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2016-05-31 16:33:16 +0200 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@linaro.org> | 2016-07-13 16:22:08 +0200 |
| commit | 31954660a7a613cd01e6ab1e90e7fea6ca6ffc74 (patch) | |
| tree | c75a19c7ef6f126e97f9a2754321b9fd41badfbf /drivers/dma-buf/Kconfig | |
| parent | MAINTAINERS: add entry for the Sync File Framework (diff) | |
| download | linux-31954660a7a613cd01e6ab1e90e7fea6ca6ffc74.tar.xz linux-31954660a7a613cd01e6ab1e90e7fea6ca6ffc74.zip | |
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: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Diffstat (limited to 'drivers/dma-buf/Kconfig')
| -rw-r--r-- | drivers/dma-buf/Kconfig | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig index 9824bc4addf8..25bcfa0b474f 100644 --- a/drivers/dma-buf/Kconfig +++ b/drivers/dma-buf/Kconfig @@ -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 |