Intel implements significant driver improvements for Arc Graphics in Linux 5.19

Today, Intel’s open source engineering group released the first batch of “DRM-intel-gt-next” updates for DRM-Next. This selection of DRM updates will make its way into the Linux 5.19 migration. The pull request should offer additional updates and optimizations for the latest Linux kernel, coming this year.

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The latest update improves Intel ARC DG2 and Alchemist graphics, including two new user API inclusions. The first supports the process of reading a binary table and describing GPU configurations from the firmware blob. The second inclusion enables additional sysfs API helper for platforms with multi-tile capability.

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Michael Larabel, owner of popular Linux news and information site Phoronix, notes that Linux 5.19 will be the ultimate release for DG2 and Intel’s Alchemist support for the company’s next-generation graphics technology.

User-level GPU usage reporting, using the intel_gpu_top instruction, will allow for increasingly user-friendly additions to the latest kernel. It took almost four years for these changes to be fully integrated into Linux, especially with the multiple freezes over the past few years.

Intel’s latest updates are refinements and enhancements to Intel’s frame buffer pinning logic in the driver to support Wayland’s Weston composer. Now users will be able to enjoy 60 FPS renders on screens with 8K resolution quality.

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Intel’s graphics microcontroller, the Intel GuC, also saw improvements to allow parity to handle error-catching states when the GPU stalls and new preparations for Alchemist and the DG2 architecture.

Support for the Graphics System Controller, or GSC, will help Intel’s discrete graphics cards manage firmware, secure media paths, and perform other such tasks.

Many bugfixes have been released, such as fixing the GPU hang seen on Tiger Lake and newer CPUs when using several different media engines.

The Intel DRM and KMS graphics driver is refactored again to allow greater compatibility on non-x86 systems. Intel shows that this compatibility has been pushed back to allow new technologies to remain the most important goal, but has not forgotten some older technologies still accessible in the market. However, with server accelerators and discrete graphics cards becoming more common, Intel’s effort to make its driver accessible for other Linux-supported architectures like AArch64 and RISC-V is a good sign for open-source users.

The new updates for Linux 5.19 can be seen here, showing what was recently added to DRM-Next.

Source: Phoronix