Amlogic S928X specifications – A penta-core Arm Cortex-A76/A55 SoC with Mali-G57 GPU, 3.2 TOPS NPU

Amlogic S928X block diagram

Amlogic S928X Cortex-A76/A55 will soon power some 8K TV boxes running Android TV from SDMC and others, and we now have detailed specifications as a “Quick Reference Manual” dropped in my inbox last night. While like most Amlogic processors, the S928X is designed for TV boxes, the penta-core SoC may end up in affordable yet powerful single board computers with features such as HDMI 2.1a, Gigabit Ethernet, PCIe 2.0 or USB 3.0. Amlogic S928X specifications: CPU sub-system 1x Arm Cortex-A76 core and 4x Arm Cortex-A55 cores in big.LITTLE configuration NEON and Crypto extensions Private L2 cache and unified system L3 cache Build-in RISC-V core for system control processing GPUs Arm Mali-G57 MC2 3D GPU with support for OpenGL ES 3.2, Vulkan 1.2, and OpenCL 2.0 2.5D graphics processor for scaling, alpha, rotation, and color space conversion operations VPU Amlogic Video Engine (AVE) with dedicated hardware decoders and encoders Decoding AV1 […]

Linux 6.2 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 6.2 release

Linux 6.2 has just been released with Linus Torvalds making the announcement on LKML as usual: So here we are, right on (the extended) schedule, with 6.2 out. Nothing unexpected happened last week, with just a random selection of small fixes spread all over, with nothing really standing out. The shortlog is tiny and appended below, you can scroll through it if you’re bored. Wed have a couple of small things that Thorsten was tracking on the regression side, but I wasn’t going to apply any last-minute patches that weren’t actively pushed by maintainers, so they will have to show up for stable. Nothing seemed even remotely worth trying to delay things for. And this obviously means that the 6.3 merge window will open tomorrow, and I already have 30+ pull requests queued up, which I really appreciate. I like how people have started to take the whole “ready for […]

Year 2022 in review – Top 10 posts and statistics

CNX Software Happy New Year 2023

It’s the last day of the year and the time to look at some of the highlights of 2022, some traffic statistics from CNX Software website, and speculate on what 2023 may bring us. The semiconductors shortage continued in 2022, but things are looking brighter in 2023 with the full reopening of the world mixed with forecasts of difficult economic times that should keep the demand/supply equation in check. On the Arm processor front the biggest news of the year, at least in this corner of the Internet, was the launch of the Rockchip RK3588 octa-core Cortex-A76/A55 processor together with interesting single board computers that we’ll discuss below. Announced last year, the Amlogic A311D2 octa-core Cortex-A73/A53 was finally made available in a few SBC’s, and we finally got some news about the Amlogic S928X Cortex-A76/A55 SoC showcased in 8K TV boxes, but we have yet to see it in action. […]

Linux 6.1 LTS release – Main changes, Arm, RISC-V and MIPS architectures

Linux 6.1 LTS

Linus Torvalds announced the release of Linux 6.1, likely to be an LTS kernel, last Sunday: So here we are, a week late, but last week was nice and slow, and I’m much happier about the state of 6.1 than I was a couple of weeks ago when things didn’t seem to be slowing down. Of course, that means that now we have the merge window from hell, just before the holidays, with me having some pre-holiday travel coming up too. So while delaying things for a week was the right thing to do, it does make the timing for the 6.2 merge window awkward. That said, I’m happy to report that people seem to have taken that to heart, and I already have two dozen pull requests pending for tomorrow in my inbox. And hopefully I’ll get another batch overnight, so that I can try to really get as […]

8K TV box powered by Amlogic S928X Cortex-A76/A55 processor showcased at IBC 2022

Amlogic S928X 8K TV Box

Amlogic S928X multi-core Cortex-A76/A55 8K media processor, which may have been initially known as S908X, is being showcased at ICB2022 in Amsterdam in the “SEI 8K Box” developed by SEI Robotics. Amlogic S908X/S928X was first discovered in a roadmap in 2019 and was expected to launch by the end of 2020 at the time. But after a long wait of nearly three years, the Amlogic S928X processor is finally showing in SEI 8K box with an HDMI 2.1a 8K video interface, supports for HDR and advanced audio codecs like Dolby Atmos and DTS, and support for Smart Home functions through an IoT module with WiFi 6E, Zigbee and more. SEI 8K box preliminary specifications: SoC – Amlogic S928X multi-core Cortex-A76/A55 processor, next-gen GPU (likely Mali-G610?); 12nm process System Memory – 64-bit DDR Storage – eMMC flash Video Output HDMI 2.1a up to 8Kp60 (7680 x 4320 resolution) with HDR10+/HLS, Dolby […]

Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 release arm risc-v mips

Linux 5.18 is out! Linus Torvalds has just announced the release on lkml: No unexpected nasty surprises this last week, so here we go with the 5.18 release right on schedule. That obviously means that the merge window for 5.19 will open tomorrow, and I already have a few pull requests pending. Thank you everybody. I’d still like people to run boring old plain 5.18 just to check, before we start with the excitement of all the new features for the merge window. The full shortlog for the last week is below, and nothing really odd stands out. The diffstat looks a bit funny – unusually we have parsic architecture patches being a big part of it due to some last-minute cache flushing fixes, but that is probably more indicative of everything else being pretty small. So outside of the parisc fixes, there’s random driver updates (mellanox mlx5 stands out, […]

Linux hardware video encoding on Amlogic A311D2 processor

amlogic a311d2 h265 hardware video encoding sample

I’ve spent a bit more time with Ubuntu 22.04 on Khadas VIM4 Amogic A311D2 SBC, and while the performance is generally good features like 3D graphics acceleration and hardware video decoding are missing. But I was pleased to see a Linux hardware video encoding section in the Wiki, as it’s not something we often see supported early on. So I’ve given it a try… First, we need to make a video in NV12 pixel format that’s commonly outputted from cameras. I downloaded a 45-second 1080p H.264 sample video from Linaro, and converted it with ffmpeg:

I did this on my laptop. As a raw video, it’s pretty big with 3.3GB of storage used for a 45-second video:

Now let’s try to encode the video to H.264 on Khadas VIM4 board using aml_enc_test hardware video encoding sample:

The output explains the parameters used. There are some error messages, […]

Linux 5.17 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.17 changelog

Linus Torvalds has just released Linux 5.17: So we had an extra week of at the end of this release cycle, and I’m happy to report that it was very calm indeed. We could probably have skipped it with not a lot of downside, but we did get a few last-minute reverts and fixes in and avoid some brown-paper bugs that would otherwise have been stable fodder, so it’s all good. And that calm last week can very much be seen from the appended shortlog – there really aren’t a lot of commits in here, and it’s all pretty small. Most of it is in drivers (net, usb, drm), with some core networking, and some tooling updates too. It really is small enough that you can just scroll through the details below, and the one-liner summaries will give a good flavor of what happened last week. Of course, this means […]

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