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Rewriting bmaptool in Rust to remove Python dependencies, create statically linked binary, and allow the bmap sparse file format to be used in other Rust projects.

With more SoC support, a new V4L2 driver and a new dma-buf locking convention among its contributions, Collabora was one of the most active employers for this latest kernel development cycle. Here's a look at their contributions.

Just over a year has passed since the futex_waitv() syscall, part of the new futex2 systems calls, landed in Linux 5.16. But why are both futex2 and futex_waitv needed? What role do they play in the context gaming on Linux? Let's find out by taking a closer look at the futex syscall.

Over the course of the last decade, Rust has emerged as a new programming language for writing safe low-level code. How practical would it be to write a Vulkan driver mostly in Rust? Would doing so bring enough benefit to be worth the effort? In the first of a series, Faith Ekstrand explores the area of using Rust to write Mesa Vulkan drivers.

Modern datasets contain hundreds of thousands to millions of labels that must be kept accurate. In practice, some errors in the dataset average out and can be ignored – systematic biases transfer to the model. After quick initial wins in areas where abundant data is readily available, deep learning needs to become more data efficient to help solve difficult business problems.

MLfix is a new open-source tool that combines novel unsupervised machine-learning pipelines with a new user interface concept that, together, help annotators and machine-learning engineers identify and filter out label errors.

The development of Monado's inside-out tracking solution keeps improving and more devices are now supported. Here's an overview of where things stand, as presented at the FOSS XR conference in October.

Machine learning is increasingly seeing more applications and its important to have FOSS options to accelerate such workloads. With that in mind, Collabora began an effort earlier this year to get a TFLite model running on a VIM3 NPU using Etnaviv and OpenCL.

After waiting in the Linux-next integration tree for about 18 months, the basic Rust infrastructure will finally land in the mainline Linux kernel with the imminent release of v6.1. During the 2022 Linux Maintainers Summit in Dublin, Linus Torvalds asked CI systems to start testing the new Rust infrastructure. So, with that in mind, we are excited to announce that as of today, Rust testing has now been added to KernelCI. Here's the latest on this ongoing work.

Although there are many excellent tracing tools, the new v4l2-tracer utility traces V4L2 stateless decoding more comprehensively, adding the ability to replay (i.e. "retrace") the traced activity, portably, between different userspace environments.

Some big changes happening for PipeWire's session manager! With the upcoming 0.5 release, WirePlumber's configuration system will be moving to a JSON syntax to define settings, bringing a more unified configuration approach across the PipeWire ecosystem.

Say hello to NVK, a brand new, open-source Vulkan driver for NVIDIA hardware in Mesa, written almost entirely from scratch using the new official headers from NVIDIA.

Using PipeWire, WirePlumber and a Raspberry Pi, you can create an audio bridge between a Bluetooth® device and an analog speaker system, breathing new life into your old speakers. Here's how!

Getting PanVk, an open source driver for Arm Mali Midgard and Bifrost GPUs, closer to conformancy by implementing one of the core Vulkan features: support for secondary command buffers.

After fighting with the divide between implicit and explicit synchronization with Vulkan on Linux for over seven years, we may finally have some closure: a new kernel API landing in 5.19 will increase performance and reduce latency for Vulkan applications as well as improve consistency between drivers.

The open source Panfrost driver for Mali GPUs now supports the new Valhall architecture with fully-conformant OpenGL ES 3.1 on Mali-G57, a Valhall GPU. The final Mesa patches are landing today, and the required kernel patches are queued for merge upstream. Mali-G57 features in new MediaTek Chromebooks with the MT8192 and MT8195 system-on-chips. With Mesa 22.2 and an appropriate kernel, accelerated graphics will work out of the box on Linux on these laptops.

Over the last two years, Bluetooth® audio support has steadily grown in PipeWire and has become a featureful, stable, conformant, open source Bluetooth® audio stack implementation.

Looking to use hardware-backed and virtual SocketCAN interfaces inside your Kubernetes Pods? A new device plugin now allows processes inside a pod to communicate with each other using the full Linux SocketCAN API.

Every file system used in production has tools to try to recover from system crashes. To provide a better infrastructure for those tools, Collabora's kernel team developed FAN_FS_ERROR, a new fanotify event which monitors error notifications.

The PipeWire project has made major strides over the past few years, bringing shiny new features, and paving the way for new possibilities in the Linux multimedia scene. With 2021 seeing significant progress made on all fronts, let's take a moment to look back at what was accomplished, and what lies ahead for 2022.

Valve's new Steam Deck comes with a new release of SteamOS, a specialized Linux distribution for gaming devices, which Valve and Collabora have been working on together for several years. Based on Arch Linux, a rolling-release distribution which includes the latest Mesa release for open-source accelerated graphics support, SteamOS 3 also comes with a brand new A/B design for seamless system updates.