When Vulkan 1.0 first came out a decade ago, writing Vulkan drivers was fun. You just mapped API bits to HW bits and off you go! In 2026, with Vulkan 1.4 and hundreds of extensions, it's not so simple. There is legacy cruft we all have to carry. There are 3 versions of some enums which have to be remapped by someone. There are duplicate entrypoints and queries everywhere.
In the OpenGL...
In the Linux DRM subsystem, an XR device display is currently exposed as a single, aggregated display. However, treating an XR device like a traditional flat monitor completely breaks the human experience.
Physically, an XR device consists of two distinct displays (one for each eye). Simply pushing standard 2D desktop frames to this aggregated screen results in an unviewable, disorienting...
Following up on Faith's talk, this is an opportunity to brainstorm and hear thoughts from other Vulkan driver maintainers.
The Raspberry Pi 5's Broadcom V3D 7.1 GPU was designed for graphics
workloads, but the wave of on-device LLM frameworks now directs pure
compute workloads at the V3DV Vulkan driver. This talk reports what
we learned extending V3DV for these workloads since early 2026.
ML inference stresses the driver in ways graphics never does: thousands
of tiny buffer fills and copies per token, heavy...
Nocl is a gallium driver for use in rusticl to have an Open-Source OpenCL implementation on top of CUDA.
People keep asking about this little side project of mine, so I want to talk about what's the status of the project, what are the difficulties working on it.
I'll go into the overall structure of the project, features there are more interesting to implement, what's still missing...
The performance of the Panfrost driver for Arm's Mali GPUs has improved significantly over the past year, driven by increasing industry adoption. This talk will first cover the evolution of tracing tools in Mesa (Perfetto) and their integration into Panfrost and then present the resulting optimizations (blits, draw calls, Transparent Huge Pages, Transaction Elimination, etc).
Vulkan CTS memory requirements had been steadily increasing over many years until reaching a breaking point when it started creating issues for some Mesa CI runners. We studied the problem, understood the root cause and decreased peak memory needs from 900 MBs to 300 MBs in our test builds. This talk is a quick postmortem that also helps set expectations for CTS users.
When several new boards could not fit my traditional setup, I had to revert to use of the CI-Tron for automation of those boards. This lightining talk shows the use of CI-Tron for the kernel developent and maintainer duties, emphasising its usage out of the traditional CI area.
It's been well over a decade since NIR landed upstream in Mesa. Since then, a lot of people have worked hard to get rid of TGSI. While there's still a few road blocks left, we're getting close to the home-stretch.
This talk will try to answer the question: How can we finally get rid of TGSI in Mesa?
Short status update about new OpenCL features supported, features work in progress, changes in driver status and what the priorities are going forward.
The Mesa CI pipeline is complex and has many issues that are being addressed (see presentation "Addressing Mesa CI pain points (2nd edition): what we've done, and where we are going").
This workshop will be dedicated to discussing outstanding pain points from the presentation, so that we (the CI developers) can make sure you (the CI users = Mesa developers) agree on what these pain points...
A small group of people has been at work reversing the GPU in the M3 SoC and in this talk we will talk about the progress we've made so far.
We will talk about how the HW differs from previous generations and what is required to port the driver.
Finally, we will discuss the status of the porting work for the userspace and kernel drivers.
Problem Statement
Today, when an atomic commit fails, userspace typically receives only a generic error such as -EINVAL, with no indication of the underlying cause. As a result, compositors cannot determine why the commit failed or apply appropriate corrective actions. A common example is a bandwidth-related failure, where the requested bpc exceeds the available link bandwidth. Since the...
Annual report on the status of Panthor and what has been accomplished over the year. We also want to update the community on plans for the next year and the list of features we are going to work on.
The compiler the panfrost drivers currently use for Bifrost and later hardware is starting to show its age. It was originally developed as a Bifrost compiler and Valhall support was bolted on as an afterthought. This summer, a few of us at Arm and Collabora have been building a brand new compiler for Valhall and later hardware. In this presentation, we'll talk about the new compiler, the...
Earlier this year, we substantially reworked the render pass abstraction used by the PanVK driver. Previously, it was based on what Alyssa had written for the OpenGL driver which was designed around an immediate-mode API. With Vulkan, we have more information and can do better. In this talk, Faith will talk about the over-all design and philosphy of the new abstraction and how it's helped us...
Since the last XDC, we have enabled adreno gen8 (a830, a840, x2-90, etc) in mesa (gl/cl/vk) and upstream kernel, in addition to continuing to backfill support for a6xx and a7xx devices.. with more to come. And we continue to shift-left in terms of enabling new hw prior toshipping, starting with x2-90.
In addition, new features have been added (PERFCNTR_CONFIG, rusticl enabled by default,...
Turnip is one of Mesa's few drivers that has support for multiple kernel drivers, including the upstream MSM kernel driver and downstream KGSL kernel driver. This gives it the interesting ability to be able to run on devices that run Linux as well as unmodified android phones, which are typically pretty locked down.
This talk will be a quick crash course for anyone interested in getting...
The devs behind Turnip have been hard at work improving the driver. You may have heard that Turnip is being used for some pretty serious™️ gaming now. To support that we've been working on adding extensions, improving performance, and adding support for new devices.
In this presentation we are going to give you an update on the current state of Turnip, and give a little more details on some...
KosmicKrisp status update on features, performance and developer tips and tricks.
Some things are worth the wait. After a long, patient climb, the etnaviv project
reached two milestones this year that once felt a long way off.
This lightning talk looks at where the driver finally caught up on conformance, and
at a new capability that opens the door to a whole class of workloads etnaviv could
not run before.
Years in the making, and worth every step
The V3D (OpenGL) and V3DV (Vulkan) drivers power the Broadcom GPU found in the Raspberry Pi 4 and 5.
In this lightning talk we will go through a high-level tour of the latest updates to these drivers that we deliveredwhat things have been done on them: new extensions and features, performance improvements in different paths, refactors, CI, and so on.
After this talk you will have a...
On the last XDC the plan for the common DisplayPort framework in DRM was announced. Thihs lightining talk provides a (small) status update over the past year.
Mesa has for the longest time functioned without a formal governance model. And while just relying on forming informal consensus functions well most of the time, there are times when we end up with compromises that nobody likes.
So let's have a sit down and discuss options for putting in place a formal governance model.
Over the past year the PowerVR driver has made significant progress, from passing Vulkan 1.2 conformance to enabling OpenGL (ES) support via Zink, Wayland support, Mesa CI integration, improved developer tooling and adding support for additional platforms.
This talk will cover the advances that have been made since last XDC, discuss the current state of the PowerVR driver and outline the...
What's new with everyone's favorite open source Vulkan driver for Nvidia GPUs? A bunch of stuff! Learn more about the latest in nvk technology -- compression, memory copies, mesh shaders, and more!
The Tyr project aims to port the existing DRM GPU kernel driver, Panthor, to Rust. Upstream Tyr is still very much a work-in-progress: it will probe as a platform device driver and can read and report on its GPU registers, but the rest of Tyr remains in a state of flux. Moving Tyr upstream has required us to test, adapt to, and contribute to the larger Rust ecosystem that is developing around...
Mesa CI has one of the most complex CI pipelines. While this is great for test coverage, this also brings challenges in infrastructure, usability, and sustainability. In this second edition of the talk, we will present what we think works, what we've done over the past year, what still needs improvement, and what is currently on our roadmap.
We've submitted a workshop proposal to discuss...
HDCP (High Bandwidth Digital Content Protection) failures during real-world playback are difficult to reproduce and harder to triage. When protected content breaks on a user’s machine, there is rarely a quick way to tell whether the fault lies in the kernel driver or in user space or in the display link itself. Such failures are often intermittent, they surface only after a session has been...
Problem Statement
Compositors are unaware of the media content frame rate and therefore present frames using the display's default refresh cadence. This mismatch leads to irregular frame timing, causing judder during low-frame-rate video playback (e.g., 24/30 fps) on both fixed-refresh and VRR displays. A familiar example is 3:2 pulldown, where 24 fps content is displayed on a 60 Hz panel...
