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Etnaviv DRM Driver Reverse-Engineers Performance Counters Support

Written by Michael Larabel in Linux Kernel on 9 June 2017 at 07:11 AM EDT. Add A Comment

Etnaviv contributor Christian Gmeiner has posted a set of 21 patches for implementing support for performance counters within this reverse-engineered Vivante DRM graphics driver.

Vivante GPUs do not provide good performance counters support natively so adding this capability to Etnaviv is a bit hairy and the performance domains and signals are then exported to user-space via two new ioctls to user-space.

Those interested in performance counters support for Etnaviv can learn more via this patch series.

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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 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, LinkedIn, or contacted via MichaelLarabel.com.