Intel GuC Firmware Fix Submitted For Linux 5.19

[phoronix]

Phoronix: Intel GuC Firmware Fix Submitted For Linux 5.19

Sent in on Friday night were this week's batch of Direct Rendering Manager (DRM) driver fixes for Linux 5.19-rc8 due out on Sunday. While usually the late-stage changes tend to be not too eventful, this pull does carry some extra interest since it does fix the Intel GuC firmware breakage I wrote about last week that ended up breaking Alder Lake P graphics on Linux 5.19 unless also upgrading the firmware version...

https://www.phoronix.com/news/Intel-GuC-Firmware-Fix-Linux

[oiaohm]

https://lore.kernel.org/dri-devel/[email protected]/T/

The plan is to follow this up with a more complex rework to allow for multiple different GuC versions to be supported at the same time.

There is more complex Intel GuC fix to come. Lets just say the locking to version 70 GuC turned out to expose a few more problems. I would suspect the more complex solution allowing version per Intel output GuC to be 5.20.