Intel Tries Again To Auto Enable GuC/HuC Functionality For Their Linux Graphics Driver
Written by Michael Larabel in Intel on 18 August 2019 at 12:02 PM EDT. 13 Comments
INTEL --
Intel previously tried auto-enabling GuC and HuC functionality within their Linux kernel graphics driver but ended up reverting the support since the driver didn't gracefully handle the scenarios of missing/corrupt firmware files. The driver should now be more robust in such situations so they will try again for turning on the automatic behavior, possibly for the upcoming Linux 5.4 cycle.

Intel GuC and HuC have been around since Skylake and used for graphics workload scheduling, some power management bits, and for select media capabilities. For newer hardware is also being used as part of HEVC/H.265 handling.

GuC/HuC hasn't been enabled by default due to problems on some earlier platforms and also some users not wanting to have these binary-only firmware blobs on their system. But now Intel will try again to auto-enable the functionality by default when the firmware successfully loads.

Per this patch, they are aiming to enable the auto mode again for GuC/HuC now that the i915 DRM driver is more robust against missing/corrupt firmware.
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 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.

Related Intel News
Popular News This Week