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Intel Contributes New "KCPUID" Utility For Linux To Reliably Report CPU Features

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Linux

Intel engineers have been working on a tool called kcpuid for showing the raw CPU features/capabilities of a processor under Linux. This utility will be part of the kernel source tree and is queued up now in tip's x86/misc branch, thereby making it material for Linux 5.13 barring any issues coming up.

Users/administrators can generally rely on /proc/cpuinfo for quickly finding out CPU features of a given system. But the reported CPU information can be a bit misleading as some information can get left out due to kernel boot-time / command-line options that may disable some feature flags. Meanwhile other user-space utilities exist for reading CPU features but they are not necessarily up-to-date for the latest CPUs, among other potential issues.

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Also: Intel 14th Gen Lunar Lake CPU Platform Referenced In New Linux Patch Notes

Intel 14th Gen Luna Lake CPU Leaked In Latest Linux Patches

  • Intel 14th Gen Luna Lake CPU Leaked In Latest Linux Patches; Release Date Hinted

    Intel is reportedly commencing the development of the rumored 14th Generation Luna Lake processors. Rumors have it that the company's rolling out of chips' first support through the latest Linux patches hints at its potential launch window.

    The term "Intel Luna Lake" processor was spotted by Coelacanth's Dream via Videocardz on a page showing a patch that introduced support for the unannounced CPU. The patch notes are for the Intel Ethernet Driver e1000e, which is a 1 Gbps NIC for Linux systems. Based on the patch notes, support for Intel Meteor Lake CPU was added last October 2020.

Intel CPU roadmap shoots for the moon with Lunar Lake drivers...

  • Intel CPU roadmap shoots for the moon with Lunar Lake drivers hitting Linux years ahead of launch

    Intel is looking far, far ahead of where it's at today according to a recent update to its Linux driver stack. While we're anticipating Intel Rocket Lake chips later this month, Intel is eyeing up Lunar Lake processors some three or more years in the future.

    [...]

    That big new design will be Alder Lake, which represents a monumental shakeup in CPU architecture for the chipmaking company. So one can assume that all those thereafter will feature similarly disparate architectures from those around today.

    Intel Alder Lake is still on track to arrive later this year, and will feature the 10nm Enhanced SuperFin process node for the first time on desktop. That's not the massive shift in design we're talking about, however. That's the hybrid design of Alder Lake. These chip will feature up to eight 'big' cores, built from the Golden Cove architecture, and up to eight 'little' cores. Those little cores will be based on the low-power architecture usually found in Atom chips, but a newer and reportedly much more effective version than what's around today, codename Gracemont.

    These chips are also said to be the first to arrive with DDR5 RAM support on desktop, and we've seen heaps of memory manufacturers roll out the precursors to compatible kits over the past few months. PCIe 5.0 support is also incoming.

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