Intel's Lead Engineer For Linux Performance Monitoring Is Leaving The Company

This morning while finishing up work on the concerning Intel open-source comments from Intel Tech Tour in Arizona and summing up the declining open-source contributions and departures of numerous Intel open-source/Linux developers from the company, yet another Linux engineering departure crossed my wire.

There was another MAINTAINERS file update merged overnight for the ongoing Linux 6.18 kernel. With the perf subsystem tool updates, which brought a new Python app for the in-kernel tree , there was another notable change.

The merge noted
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Linux Driver Support Ready For Intel Panther Lake's NPU 5

In addition to Intel talking up their Panther Lake SoC and its Xe3 integrated graphics at their Tech Tour in Arizona last week, they also hosted sessions on additional aspects of Panther Lake like the IPU 7.5 for web cams and the new NPU 5 IP for AI acceleration. For those wondering, the Intel NPU 5 support under Linux is already largely squared away.

Intel's presentation on NPU 5 was catering to the Microsoft Windows Copilot + experience and all the enhancements found over NPU 5 with Lunar Lake.

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Linux Seeing First LED Driver Written In Rust

The expanse of Rust-written kernel drivers for Linux continues. Posted to the Linux kernel mailing list is the first LED kernel driver written in the Rust programming language.

For Linux 6.18 merged was bindings for writing Rust USB drivers and a lot of other new Rust kernel code . Looking further out on the horizon, there's even interest now in writing LED drivers in the Rust programming language.

Open-source developer Markus Probst posted the patch series on Wednesday for the first LED driver written in Rust.
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Intel

Intel's Open-Source Strategy Is Changing At Odds With The Ethos Of Open-Source

For the past 21+ years of running Phoronix and even longer than that being a Linux user, I have loved and consistently promoted Intel's open-source efforts and leading Linux support. Even through Intel's difficult periods of delayed and stagnate hardware launches, what had remained consistent at the company and rather legendary had been their open-source contributions. From the Linux kernel to compiler toolchains and hundreds -- if not thousands -- of different open-source projects over the past two decades have been advanced

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Intel

Intel Announces Xeon 6+ For Clearwater Forest CPUs

Details during the Clearwater Forest briefing at Intel Tech Tour Arizona were rather light... Especially as for what's known about the cores already from prior events like Hot Chips and other Intel disclosures around the Darkmont E-core. But we do now know the branding: Xeon 6+ for Clearwater Forest.

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Intel Showcased Panther Lake & Xe3 Graphics At Tech Tour Arizona 2025

In addition to announcing Clearwater Forest as Xeon 6+ , Intel also used their Tech Tour 2025 Arizona event for predominantly focusing on upcoming Panther Lake SoCs for laptops shipping in 2026.

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Intel Teases New Inference-Optimized Enterprise GPU

Intel Tech Tour 2025 in Arizona was primarily focused on disclosures around Xeon 6+ Clearwater Forest and Panther Lake / Xe3 but during the opening keynote was also teasing a yet-to-be-announced inference-optimized GPU.

On Intel's AI Execution Roadmap during the Intel Tech Tour keynote they shared a new inference-optimized GPU:
"Inference-optimized GPU with enhanced memory, bandwidth and enterprise-level inference"

It will be very interesting to see what this new inference-optimized GPU is
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Intel IPU 7.5 With Panther Lake Will Rely On Closed-Source Linux Libraries

At the Intel Tech Tour in Arizona, an entire slot was devoted to talking up their next-gen IPU to be found with upcoming high-end Panther Lake laptops. This was in addition to the main Intel Panther Lake / Xe3 presentation . IPU product marketing manager Tomer Rider presented on their IPU7.5 tech, but unfortunately like we have seen with Intel's IPU tech since Alder Lake, there are user-space binary blobs involved.

Intel talked up their IPU 7.5 image processing tech that
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Intel Refrains From Commenting On Panther Lake Xe3 SR-IOV Support

A few months back it was brought up on the Intel driver mailing list around SR-IOV support for Panther Lake's Xe3 graphics . This goes along with Intel open-source Linux driver developers being quite busy on SR-IOV support for Battlemage dGPUs as part of their Project Battlematrix . Unfortunately, I wasn't provided any answer at Intel Tech Tour in Arizona whether SR-IOV support will be found with all Panther Lake SKUs or reserved for select offerings.

For Battlemage discrete graphics cards I received confirmation over
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OpenGL Mesh Shader Extension Merged

Proposed last year was GL_EXT_mesh_shader as a cross-vendor mesh shading extension . That OpenGL mesh shader work led by an AMD engineer was merged today into the OpenGL Registry.

That GL_EXT_mesh_shader support was worked on the past year in tandem with mesh shader support for the RadeonSI Gallium3D driver and landing the necessary prerequisites upstream in Mesa. There's also been Zink driver work on OpenGL mesh shader support too .

This OpenGL mesh shader support was motivated in part by
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