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Kernel: Emulated Input, Loongson, AMD/Frontier, and Linux 5.14

Submitted by Roy Schestowitz on Wednesday 25th of August 2021 05:05:55 PM Filed under
Linux
  • Peter Hutterer: libei - a status update

    A year ago, I first announced libei - a library to support emulated input. After an initial spurt of development, it was left mostly untouched until a few weeks ago.

    [...]

    First, a short recap of what libei is: it's a transport layer for emulated input events to allow for any application to control the pointer, type, etc. But, unlike the XTEST extension in X, libei allows the compositor to be in control over clients, the devices they can emulate and the input events as well. So it's safer than XTEST but also a lot more flexible. libei already supports touch and smooth scrolling events, something XTest doesn't have or is struggling with.

    Terminology refresher: libei is the client library (used by an application wanting to emulate input), EIS is the Emulated Input Server, i.e. the part that typically runs in the compositor.

  • Loongson Continues Working On LoongArch For Linux, But It's Mostly Copying MIPS Code - Phoronix

    Loongson this summer rolled out their 3A5000 processors built on their own "LoongArch" ISA. While the company continues claiming that LoongArch is "not MIPS", the Linux kernel code they continue proposing for the mainline Linux kernel points to it being a close facsimile to MIPS.

    LoongArch is the Chinese company's effort to have a domestic processor not dependent upon foreign technology. While the company has long produced MIPS-based processor designs, with their new processors they are using LoongArch as they describe as "a new RISC ISA" for the Chinese CPU market.

  • AMD Posts Latest Linux Patches For Supporting The Frontier Supercomputer - Phoronix

    AMD engineers continue working on preparing the Linux kernel for the Frontier supercomputer.

    Much of the Frontier bring-up for the Linux kernel over the past number of months has been around supporting the coherent interconnect between AMD EPYC CPUs and the Instinct "Aldebaran" GPUs/accelerators with allowing CPUs coherent access to the GPU memory. The latest patch series out today for the Linux kernel is again focused on this GPU device memory handling.

  • Linux 5.14 Features Aplenty With New AMD GPUs, SmartShift, More Alder Lake, Core Scheduling - Phoronix

    Today marks the 30th birthday of Linux since it was announced by Linus Torvalds. Meanwhile in just a few days the Linux 5.14 kernel is expected to be released as stable. Here is a look back at the most prominent features coming for this kernel release.

    In our close monitoring and testing of Linux 5.14 over the past number of weeks, here is what has us most excited with this forthcoming kernel:

    - Continued bring-up around Intel Alder Lake support. Some more pieces / device IDs are still landing for Linux 5.15 but it appears Linux 5.14 should have Alder Lake in fairly good shape... One of the big additions for 5.14 was having Alder Lake P graphics support enabled. The elephant remains though around Thread Director with there not yet being any Linux scheduler patches -- queued or otherwise staging -- around Thread Director on Linux.

»

AMD Continues Frontier Exascale Supercomputer Enablement

Submitted by Roy Schestowitz on Wednesday 25th of August 2021 07:08:12 PM.

  • AMD Continues Frontier Exascale Supercomputer Enablement

    AMD is building the world's fastest supercomputer, Frontier, which will deliver exascale-class performance for the US Oak Ridge National Laboratory (ORNL). The supercomputer brings a lot of new technologies to the table, and AMD is laying the groundwork for the software stack that will enable the Frontier to run smoothly. As reported by Phoronix, that work continues in the form of newly-submitted Linux kernel patches.

    The Frontier supercomputer is a $600 million project that aims to provide more than 1.5 ExaFLOPs of computational power that will be used by ORNL for work on various government projects. Using next-generation EPYC processors and Radeon Instinct graphics cards from AMD, this system will bring a combination of novel memory, storage, and processing elements into one system.

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