Open-source News

Intel Posts New Linux Driver For "Versatile Processing Unit" Coming With 14th Gen CPUs

Phoronix - Thu, 07/28/2022 - 22:00
Intel has posted a new open-source Linux VPU driver today... Not Video Processing Unit, but it's for a Versatile Processing Unit coming with 14th Gen Core processors...

Linux 5.19 Features Many Intel & AMD Improvements, New Hardware Preparations

Phoronix - Thu, 07/28/2022 - 21:00
Linux 5.19 is set to be released this weekend, so here is a reminder about some of the big ticket items to find in this summer 2022 kernel release...

Retbleed Impact, Overall CPU Security Mitigation Cost For Intel Xeon E3 v5 Skylake

Phoronix - Thu, 07/28/2022 - 17:55
Since the disclosure of Retbleed earlier this month as the newest CPU security vulnerability around speculative execution, I've posted some Intel/AMD benchmarks looking at the mitigation cost for the affected older generations of processors. Last week I also looked at the accumulated CPU mitigation cost on AMD Zen 1. Today is a similar comparison over on the Intel Xeon E3 v5 "Skylake" side with looking at the cost of just the Retbleed mitigations and then the overall CPU mitigation cost when toggling all of the various vulnerabilities with the "mitigations=off" flag.

Intel Begins Lobbing More Meteor Lake Linux Graphics Driver Patches

Phoronix - Thu, 07/28/2022 - 17:20
With Intel DG2/Alchemist getting settled, the DRM-Next cutoff for v5.20 kernel material having passed, and Raptor Lake enablement also appearing to be in good shape given the little change over Alder Lake, Intel open-source engineers have begun working more on Meteor Lake driver support that will succeed Raptor Lake next year...

Linux Optimization Patch Wants AMD's PSP To Cool Down

Phoronix - Thu, 07/28/2022 - 16:46
The newest AMD Linux optimization patch for the kernel aims to introduce a cool down period for the AMD Platform Security Processor (PSP) after each I2C transaction between the x86 CPU and the PSP...

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