Intel Posts Linux Patches Enabling AMX Use Within KVM Guests
Intel Posts Linux Patches Enabling AMX Use Within KVM Guests
13 Hours Ago - Intel - Advanced Matrix Extensions - 2 Comments

One of many exciting features/changes with upcoming Intel Xeon Scalable "Sapphire Rapids" processors is the introduction of Advanced Matrix Extensions (AMX). While initial AMX support is premiering with Linux 5.16 due out in stable form as the start of the new year, it currently doesn't allow for KVM virtualized guests to make use of the new capabilities.

7 December

Fedora 36 Planning To Run Wayland By Default With NVIDIA's Proprietary Driver
Fedora 36 Planning To Run Wayland By Default With NVIDIA's Proprietary Driver
7 December 03:36 PM EST - Fedora - NVIDIA + Wayland - 26 Comments

While all of the software components are out there now for being able to run NVIDIA's proprietary driver stack with modern (GBM-based) Wayland compositors by default, including XWayland support, Fedora Workstation currently defaults to using an X.Org based session with the green binary blob. However, for Fedora 36 next spring they are planning on using the Wayland-based desktop here too.

Intel Posts Updated Driver & Sample Code For "Software Defined Silicon"
Intel Posts Updated Driver & Sample Code For "Software Defined Silicon"
7 December 02:08 PM EST - Intel - Intel SDSi - 13 Comments

Back in September Intel originally posted Linux patches for "Software Defined Silicon" for being able to activate extra CPU features present in the processor's silicon but not exposed by default unless the cryptographically secure process with this SDSi driver was performed. Intel appears to be moving toward allowing licensable processor features that can be activated after the fact and today a new version of that SDSi Linux driver appeared.

Amazon Linux 2022 Performs Well, But Intel's Clear Linux Continues Leading In The Cloud
Amazon Linux 2022 Performs Well, But Intel's Clear Linux Continues Leading In The Cloud
7 December 12:00 PM EST - Operating Systems - 7 Comments

AWS recently introduced Amazon Linux 2022 in preview form as the latest iteration of their Linux distribution now based on Fedora with various alterations to catering to their customers running it on EC2. Last week were benchmarks looking at Amazon Linux 2022 compared to Amazon Linux 2 and other distributions like CentOS and Ubuntu. In this article we are seeing how Amazon Linux 2022 can compete with Intel's own Clear Linux performance-optimized distribution.

LLVM Now Has "Official" Support For Targeting NEC's Vector Engine (VE)
LLVM Now Has "Official" Support For Targeting NEC's Vector Engine (VE)
7 December 06:00 AM EST - LLVM - NEC SX-Aurora TSUBASA - 3 Comments

The LLVM compiler infrastructure supports not only a growing number of CPU architectures but continues to lead when it comes to its support for different accelerators. Back in 2019 NEC was working to upstream their SX-Aurora VE "Vector Engine" Accelerator and now as of this week that target is considered officially supported upstream.

Intel's SWR Removed From Mainline Mesa, More Classic Code Cleaning Continues
Intel's SWR Removed From Mainline Mesa, More Classic Code Cleaning Continues
7 December 12:00 AM EST - Mesa - Mesa 22.0 Cleaning - 8 Comments

Last Friday Mesa classic drivers were removed from the mainline code-base and punted off to an "Amber" code branch where they will receive whatever attention moving forward. With that classic Mesa code removed, more code cleaning is now happening on top of the tens of thousands of lines of code already removed. Intel's OpenSWR driver has also now been removed from mainline.

6 December

Mesa Begins Trek Bringing Up Arm Mali "Valhall" Graphics
6 December 04:31 PM EST - Mesa - Open-Source Valhall - 7 Comments

The Panfrost Gallium3D OpenGL driver and PanVK open-source drivers in Mesa have come a long way via reverse-engineering for Arm Mali graphics support. However, to this point the focus has been on Arm's "Midgard" and "Bifrost" architectures while the newer "Valhall" architecture has been around the past two years. The Panfrost effort for bringing up Valhall is now getting underway.

Imagination Announces "Catapult" RISC-V CPU Family
Imagination Announces "Catapult" RISC-V CPU Family
6 December 02:27 PM EST - RISC-V - RISC-V CPUs - 26 Comments

With Imagination Technologies having sold off what was MIPS Technologies several years ago and that CPU architecture having been abandoned now, Imagination today announced "Catapult" as their new family of RISC-V processor IP.

LLVM Clang 14 Lands An "Amazing" Performance Optimization
6 December 01:54 PM EST - LLVM - LLVM Clang 14 - 33 Comments

While the performance of LLVM/Clang has improved a lot over the years and for x86_64 and AArch64 can be neck-and-neck with the GCC compiler, the fierce performance battle is not over. With LLVM/Clang 14.0 due out in the early months of 2022 will be more performance work with one recent commit in particular showing a lot of promise.

Updated Rust Code For Linux Kernel Patches Posted
Updated Rust Code For Linux Kernel Patches Posted
6 December 09:30 AM EST - Linux Kernel - Rust For Linux v2 - 63 Comments

In 2022 we will very likely see the experimental Rust programming language support within the Linux kernel mainlined. Sent out this morning were the updated patches introducing the initial support and infrastructure around handling of Rust within the kernel.

GRVK 0.5 Gets Battlefield 4 Running With AMD's Mantle Over Vulkan API
GRVK 0.5 Gets Battlefield 4 Running With AMD's Mantle Over Vulkan API
6 December 12:00 AM EST - Vulkan - Mantle API On Vulkan - 12 Comments

It's been a number of months since GRVK 0.4 as the open-source project re-implementing AMD's defunct Mantle API over the modern Vulkan API that was originally based on the former. With Sunday's release of GRVK 0.5, this Mantle-on-Vulkan translation layer is now capable of correctly rendering Battlefield 4.

5 December

XWayland Adds Support For Touchpad Gestures
5 December 05:44 AM EST - X.Org - XWayland + Touchpad Gestures - 4 Comments

XWayland is increasingly great shape especially when it comes to fulfilling the needs of gamers with simply running games lacking native Wayland support with great speed. But when it comes to other use-cases there are occasionally gaps and areas not yet fulfilled by XWayland versus the conventional X.Org Server. One of the latest examples of a feature now correctly wired up is touchpad gesture handling.

4 December

Intel Making Cluster Scheduling Configurable, Disabled For Alder Lake Hybrid CPUs
4 December 09:14 AM EST - Intel - Cluster Aware Scheduling - 4 Comments

Added to the in-development Linux 5.16 kernel was cluster-aware scheduling designed to enhance system performance where groups of CPU cores may share caches or similar and thus the scheduler could benefit from knowing that information for making more optimal task placement. But as I pointed out early on with Linux 5.16, this cluster scheduling is hurting the Intel Alder Lake performance on the new kernel. Intel is now working to correct this by making the cluster scheduling configurable and disabling this functionality by default for hybrid CPUs such as Alder Lake.

3 December

More BattlEye-Protected Games Now Working With Steam Play On Linux
3 December 02:33 PM EST - Linux Gaming - More Games - 12 Comments

Last month BattlEye-using games began running on Steam Play when using the latest Steam client beta paired with the experimental version of Proton. However, it still does require the intervention of the game studio to request the support be enabled for a particular game. Today in time for any weekend gaming is several more games using the BattlEye anti-cheat software working on Linux.

FGKASLR Appears Closer To Mainline For Improving Linux Security
3 December 06:30 AM EST - Linux Security - Function Granular KASLR - 1 Comment

Kernel Address Space Layout Randomization has been common on Linux for a decade and a half now while more recently has been Function-Granular (or sometimes referred to as Finer-Grained) KASLR for further upping the security benefits by making it much harder to predict kernel address positions for attacks.

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