Linux 4.13 Release – Main Changes, ARM & MIPS Architectures

Linus Torvalds has just announced the release of Linux 4.13 and a kidney stone…: So last week was actually somewhat eventful, but not enough to push me to delay 4.13. Most of the changes since rc7 are actually networking fixes, the bulk of them to various drivers. With apologies to the authors of said patches, they don’t look all that interesting (which is definitely exactly what you want just before a release). Details in the appended shortlog. Note that the shortlog below is obviously only since rc7 – the _full_4.13 log is much too big to post and nobody sane would read it. So if you’re interested in all the rest of it, get the git tree and limit the logs to the files you are interested in if you crave details. No, the excitement was largely in the mmu notification layer, where we had a fairly last-minute regression and […]

Linux 4.6 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds released Linux Kernel 4.6 earlier today: It’s just as well I didn’t cut the rc cycle short, since the last week ended up getting a few more fixes than expected, but nothing in there feels all that odd or out of line. So 4.6 is out there at the normal schedule, and that obviously also means that I’ll start doing merge window pull requests for 4.7 starting tomorrow. Since rc7, there’s been small noise all over, with driver fixes being the bulk of it, but there is minor noise all over (perf tooling, networking, filesystems,  documentation, some small arch fixes..) The appended shortlog will give you a feel for what’s been going on during the last week. The 4.6 kernel on the whole was a fairly big release – more commits than we’ve had in a while. But it all felt fairly calm despite that. Linux 4.5 added […]

64-bit ARM (Aarch64) Instructions Boost Performance by 15 to 30% Compared to 32-bit ARM (Aarch32) Instructions

Yesterday was quite an eventful day with the launch of two low cost 64-bit ARM development boards, namely Raspberry Pi 3 and ODROID-C2, and as usual there were some pretty interesting discussions related to the launch of the boards in the comments section. One of the subject that came is that while Raspberry Pi 3 board is using a 64-bit processor, the operating systems are still compiled with 32-bit instructions (Aarch32) and even optimized for ARMv6, and they intend to keep it that way according to Eben Upton interview: Eben readily admits that not all the capabilities of the new parts are going to be used at launch, however. “Although it is a 64‑bit core, we’re using it as just a faster 32-bit core,” he reveals about the Pi 3’s central processing unit. “I can imagine there’d be some real benefits [to 64-bit code]. The downside is that you do […]

Linaro Connect 2016 Bangkok Schedule – March 7-11, 2016

Linaro Connect Bangkok (BKK16) will take place on March  7 – 11, 2016, and the schedule is now available for the 5-day event with keynotes and sessions. Whether you’re going to attend or not, it’s always interesting to check the schedule to find out what’s going on in terms of ARM Linux development. The five days will focus on work by different Linaro groups, but really sessions are mixed for any given day, and I’ve created a virtual schedule for each day with available information, as Linaro has become a little more closed to the outside than when it was launched a few years ago. Monday 7 – LITE (Linaro IoT & Embedded Group) 1400 – 14:50 – Evolution of the Reference Software Platform Project The Reference Software Platform lead project was introduced in Linaro Connect San Francisco 2015, and since then it evolved and matured with the completion of […]

Linux 4.2 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds released Linux Kernel 4.2 last Sunday: So judging by how little happened this week, it wouldn’t have been a mistake to release 4.2 last week after all, but hey, there’s certainly a few fixes here, and it’s not like delaying 4.2 for a week should have caused any problems either. So here it is, and the merge window for 4.3 is now open. I already have a few pending early pull requests, but as usual I’ll start processing them tomorrow and give the release some time to actually sit. The shortlog from rc8 is tiny, and appended. The patch is pretty tiny too. Go get it, Linus Some notable changes made to Linux 4.2 include: File systems New features for F2FS including per file encryption CIFS support SMB 3.1.1 (experimental) Cryptography – Jitter Entropy Random Number Generator, Chacha20 stream cipher and Poly1305 authentication (RFC7539),New RSA implementation. See lwn.net […]

Linux 4.0 Release – Main Changes, ARM and MIPS Architectures

Linus Torvalds “Ima Sheep” released Linux Kernel 4.0 on Sunday: So I decided to release 4.0 as per the normal schedule, because there really weren’t any known issues, and while I’ll be traveling during the end of the upcoming week due to a college visit, I’m hoping that won’t affect the merge window very much. We’ll see. Linux 4.0 was a pretty small release both in linux-next and in final size, although obviously “small” is all relative. It’s still over 10k non-merge commits. But we’ve definitely had bigger releases (and judging by linux-next v4.1 is going to be one of the bigger ones). Which is all good. It definitely matches the “v4.0 is supposed to be a_stable_ release”, and very much not about new experimental features etc. I’m personally so much happier with time-based releases than the bad old days when we had feature-based releases. That said, there’s a few […]

Huawei Introduces Kirin 620 Octa Core Cortex A53 LTE SoC for Smartphones

Huawei / Hisilicon has announced a new 64-bit ARM processor with Kirin 620 featuring eight ARM Cortex A53 cores coupled with a Mali-450MP GPU, as well as an LTE Cat4 modem. Key specifications of this application processor include: CPU – 8x ARM Cortex A53 @ 1.2 GHz GPU – Mali-450MP4 GPU Memory – LPDDR3 Camera – 13MP, ZSL (Zero Shutter Lag), HDR Video – Decode & Encode: 1080p30 H.264 Cellular connectivity – LET Cat4 150M/50M, HSPA+ Cat24 42M / Cat6 5.76M, TDS R7 2.8M/2.2M, GSM R6 Class33 Voice Solution – VoLTE/eSRVCC, CSFB, SGLTE, DSDA, DSDS Peripherals – USB, HSIC, SD/MMC, DMAC Process – 28 nm That’s about all I know so far. Hisilicon mobile SoCs have not found their way in many handsets in the past, apart from Huawei smartphones. We’ll see if that one becomes more popular. Via AndroidPC.es and Android Headlines. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in […]

Intrinsyc Introduces Snapdragon 810 Powered Mobile and Tablet MDPs, DragonBoard Development Kit

Intrinsyc has recently announced availability for three development platforms based on Qualcomm Snapdragon 810 ARM Cortex A53/A57 processor, namely a smartphone Mobile Development Platform (MDP), a tablet MDP, and a DragonBoard development kit integration Open-Q 8094 system-on-module, making these one of the first ARM64 development platforms available to individual developers, or at least small software development companies (approved by Qualcomm). All three platforms will run Android 5.0 Lollipop. Intrinsyc Snapdragon 810 MDP Smartphone Intrinsyc MDP/S specifications: SoC – Qualcomm Snapdragon 810 (8994)  64-bit octa-core processor with 4x Cortex A57 cores, 4x Cortex A53 cores, Adreno 430 GPU, and Hexagon V56 DSP System Memory – 3 GB LP-DDR4 Storage – 32 GB eMMC 5.0  micro SD slot (under battery door) Display – 6.17” QHD (2560×1600) 490ppi, 10-finger multi-touch capacitive touchscreen Video Output – micro HDMI type D Audio Headset jack with ANC support 8 microphones (2 analog/ 6 digital) with support […]