DRM Sync Objects Heading To Linux 4.13
Written by Michael Larabel in Linux Kernel on 14 June 2017 at 06:15 AM EDT. 2 Comments
LINUX KERNEL --
David Airlie has queued up his own work on introducing the "DRM sync objects" concept into DRM-Next for in turn landing with the upcoming Linux 4.13 kernel.

DRM sync objects (syncobj) are a top-level self-contained DRM object containing a pointer to a fence, the fence in turn is updated via command submission ioctls. These sync objects can be passed between processes.

For those not following the previous patch series the past few months, there is this code as well as sync_file interaction support for importing the fence from a sync_file into a DRM sync object. There is also a sync object wait API that is based on the Vulkan wait API, but that work has yet to be merged.

For end-users, long story short, the DRM sync objects can be used for efficiently implementing Vulkan external semaphores (VK_KHX_external_semaphore) in the supported DRM drivers.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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