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More DG2/Alchemist Work as Intel begins preparing graphics driver changes for Linux 6.1

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News Tech: The first round of “drm-intel-gt-next” improvements for DRM-Next that Intel open-source programmers are going to introduce with the Linux 6.1 kernel cycle later this year has been prepared.

The GuC firmware for the hardware’s graphics micro-controller is upgraded to version 70.4.1 with this pull, and DG2 also receives an additional workaround. The DG2/Alchemist graphics support is still marked experimental in the most recent version of the Intel Git code and is hence disabled by default unless a module option is used to override the support. We’ll find out in the upcoming weeks whether Linux 6.1 support will continue to be experimental or if the code has advanced sufficiently for the experimental tag to be removed before the v6.1 merge window opens in early October.

The still-evolving DG2/Alchemist discrete graphics support is a major emphasis of Intel’s engineering work on their i915 kernel graphics driver. This includes work with consumer Arc Graphics discrete graphics cards and Arctic Sound M. (Check back tomorrow for my first Linux overview of the Arc Graphics A380.) There is still more DG2/Alchemist enablement work with today’s initial set of kernel graphics driver modifications slated for Linux 6.1.

Along with the ongoing work on DG2 enablement, improvements are being made to the TLB invalidation code to address performance regressions, enhanced GuC error debugging, routing semaphores to GuC on Gen12+ when active, preventing a potential system freeze when removing shared locking on freeing objects, and various other fixes.

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