RADV Now Uses Common Sync Framework For More Mesa Driver Code Sharing
Written by Michael Larabel in Mesa on 2 January 2022 at 06:10 AM EST. 6 Comments
MESA --
Mesa's Radeon Vulkan driver "RADV" now is making use of the common synchronization framework started by Intel "ANV" Vulkan driver developers to allow for more code sharing between the drivers.

A few months back Jason Ekstrand and other Intel developers began working on the common synchronization code for Mesa's Vulkan drivers. Due to complexities of VK_KHR_timeline_semaphore in particular, it was decided to pursue a common solution to avoid extra per-driver complexities and would help in the bring-up of future drivers.

Bas Nieuwenhuizen has been working on adapting the RADV driver the past month to use that common synchronization code. In this MR he found the performance costs to be about the same as RADV's existing custom code with the exception of QueueWaitIdle being slightly more expensive but not a cause for concern.

The code was merged on New Year's Eve for Mesa 22.0 and the immediate benefit was around 1,500 lines of code removed from the RADV driver thanks to this common solution.
Related News
About The Author
Author picture

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 20,000 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.

Popular News This Week