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Diffstat (limited to 'drivers/dma-buf/Kconfig')
| -rw-r--r-- | drivers/dma-buf/Kconfig | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig new file mode 100644 index 000000000..ed3b785ba --- /dev/null +++ b/drivers/dma-buf/Kconfig @@ -0,0 +1,33 @@ +menu "DMABUF options" + +config SYNC_FILE + bool "Explicit Synchronization Framework" + default n + select ANON_INODES + select DMA_SHARED_BUFFER + ---help--- + The Sync File Framework adds explicit syncronization via + userspace. It enables send/receive 'struct dma_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. + +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. + +endmenu |