Linux 5.2 Release – Main Changes, Arm, MIPS & RISC-V Architectures

Linux 5.2 Changelog

Linus Torvalds announced the release of Linux 5.2 last Sunday: So I was somewhat pre-disposed towards making an rc8, simply because of my travels and being entirely off the internet for a few days last week, and with spotty internet for a few days before that [*]. But there really doesn’t seem to be any reason for another rc, since it’s been very quiet. Yes, I had a few pull requests since rc7, but they were all small, and I had many more that are for the upcoming merge window. Part of it may be due to the July 4th week, of course, but whatever – I’ll take the quiet week as a good sign. So despite a fairly late core revert, I don’t see any real reason for another week of rc, and so we have a v5.2 with the normal release timing. There’s no particular area that stands out there – the changes are sosmall that the appended …

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Debian 10 “Buster” Released

If you’re a recent owner of a Raspberry Pi 4 SBC, you should have had an early taste of Debian 10 “Buster”, but the Raspberry Pi Foundation decided to release their Raspbian “Buster” image before the actual release to lower software development costs, as Debian developers only just announced the release of Debian 10 “Buster”. The new version of Debian supports various desktop environment including Cinnamon 3.8, GNOME 3.30, KDE Plasma 5.14, LXDE .99.2, LXQt 0.14, MATE 1.20, and Xfce 4.12. Beside the official announcement Debian also posted tidbits on their twitter feed, where we learn for example that “Debian 10 buster has 28,939 source packages with 11,610,055 source files”. Officially supported architectures for Debian 10 include i386 and amd64 for x86 targets, arm64, armel and armhf Arm architectures, as well as various other architectures includings MIPS (mips64el, mipsel…), PowerPC (ppc64el), and IBM System z (s390x). One notable change is that GNOME defaults to using the Wayland display server instead …

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Linux 5.1 Release – Main Changes, Arm, MIPS & RISC-V Architectures

Linux 5.1 Changelog

Linus Torvalds has just announced the release of Linux 5.1: So it’s a bit later in the day than I usually do this, just because I was waffling about the release. Partly because I got some small pull requests today, but mostly just because I wasn’t looking forward to the timing of this upcoming 5.2 merge window. But the last-minute pull requests really weren’t big enough to justify delaying things over, and hopefully the merge window timing won’t be all that painful either. I just happen to have the college graduation of my oldest happen right smack dab in the middle of the upcoming merge window, so I might be effectively offline for a few days there. If worst comes to worst, I’ll extend it to make it all work, but I don’t think it will be needed. Anyway, on to 5.1 itself. The past week has been pretty calm, and the final patch from rc6 is not all that …

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MIPS Based TritonAI 64 AI IP Platform to Enable Inferencing & Training at the Edge

TritonAI 64 Block Diagram

After announcing their first MIPS Open release a few weeks ago, Wave Computing is back in the news with the announcement of TritonAI 64, an artificial intelligence IP platform combining MIPS 64-bit + SIMD open instruction set architecture with the company’s WaveTensor subsystem for the execution of convolutional neural network (CNN) algorithms, and WaveFlow flexible, scalable fabric for more complex AI algorithms. TritonAI 64 can scale up to 8 TOPS/Watt, over 10 TOPS/mm2 using a standard 7nm process node, and eventually would allow both inference and training at the edge. The platform supports 1 to 6 cores with MIPS64r6 ISA boasting the following features: 128-bit SIMD/FPU 8/16/32/int, 32/64 FP datatype support Virtualization extensions Superscalar 9-stage pipeline w/SMT Caches (32KB-64KB), DSPRAM (0-64KB) Advanced branch predict and MMU Integrated L2 cache (0-8MB, opt ECC) Power management (F/V gating, per CPU) Interrupt control with virtualization 256b native AXI4 or ACE interface Here’s the description provided by the company for their WaveTensor and WaveFlow …

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Wave Computing Announces the First MIPS Open Source Release

MIPS Open Source Release

In a surprise announcement last year, Wave Computing revealed their plans to open source MIPS architecture, and more specifically the new MIPS Release 6 architecture. The company has now started to deliver the goods with the release of the first MIPS Open Program components. Specific components of the first release include: MIPS ISA – The latest R6 version of the MIPS 32-and-64-bit architecture, including extensions such as virtualization, multi-threading, SIMD, DSP and microMIPS code compression MIPS Open Tools – Integrated development environment for embedded real-time operating systems and Linux-based systems for embedded products that enable developers to build, debug and deploy applications on MIPS-based hardware and software platforms; MIPS Open Field Programmable Gate Arrays (FPGAs)– A complete training program for community members that includes: Getting Started Package – Provides the MIPS FPGA system as a set of Verilog files, plus an overview and instructions on how to use the MIPS FPGA system; Labs – Includes 25 hands-on labs that help …

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Linux 5.0 Release – Main Changes, Arm, MIPS & RISC-V Architectures

Linux 5.0 Changelog

Linus Torvalds has just released Linux 5.0: Ok, so the last week of the 5.0 release wasn’t entirely quiet, but it’s a lot smaller than rc8 was, and on the whole I’m happy that I delayed a week and did an rc8. It turns out that the actual patch that I talked about in the rc8 release wasn’t the worrisome bug I had thought: yes, we had an uninitialized variable, but the reason we hadn’t immediately noticed it due to a warning was that the way gcc works, the compiler had basically initialized it for us to the right value. So the same thing that caused not the lack of warning, also effectively meant that the fix was a no-op in practice. But hey, we had other bug fixes come in that actually did matter, and the uninitialized variable _could_ have been a problem with another compiler. Regardless – all is well that ends well. We have more than a …

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Linux 4.20 Release – Main Changes, Arm and MIPS Architectures

Linux 4.20 Changelog

After Greg K-H handling Linux 4.19 release, Linus Torvalds is back at the helm, and released Linux 4.20 just before Christmas: Let’s face it, last week wasn’t quite as quiet as I would have hoped for, but there really doesn’t seem to be any point to delay 4.20 because everybody is already taking a break. And it’s not like there are any known issues, it’s just that the shortlog below is a bit longer than I would have wished for. Nothing screams “oh, that’s scary”, though. And as part of the “everybody is already taking a break”, I can happily report that I already have quite a few early pull requests in my inbox. I encouraged people to get it over and done with, so that people can just relax over the year-end holidays. In fact, I probably won’t start pulling for a couple of days, but otherwise let’s just try to keep to the normal merge window schedule, even …

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Onion Omega2 Pro OpenWrt Linux IoT Board Comes with 8GB Storage (Crowdfunding)

Omega2 Pro

Onion Omega2 and Omega2 Plus are MediaTek MT7688 MIPS based WiFi boards for IoT applications that were launched in 2016 for as low as $5. Both boards run OpenWrt (LEDE at the time), and Omega2 Plus included more memory and storage with respectively 128MB RAM, 32MB flash and a micro SD card. But Onion team found out that many users needed more storage space, and they’ve now come up with Omega2 Pro model with the same processor, 128MB RAM, and large 8GB flash considering we’re talking about a board running OpenWrt 18.06 here. Onion Omega2 Pro specifications: Wireless Module – Onion Omega2S+ with SoC – MediaTek MT7688 MIPS processor @ 580 MHz System Memory – 128MB DDR2 RAM Connectivity – 2.4 GHz 802.11 b/g/n Wi-Fi 4 Antenna – 2 dBi directional chip antenna (on mainboard) & u.FL connector for external antenna (on-module) Storage – 8 GB eMMC flash USB – 1x USB 2.0 host port, 1x micro USB port for …

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