BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Nouveau/NVK update DTSTART;VALUE=DATE-TIME:20231017T081000Z DTEND;VALUE=DATE-TIME:20231017T085500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-175@indico.freedesktop.org DESCRIPTION:Speakers: Faith Ekstrand (Collabora)\nKarol and Faith will tal k about what has happened in the nouveau project in the last year\, includ ing the latest on kernel GSP support\, NVK\, and the future of the nouveau GL driver.\n\nhttps://indico.freedesktop.org/event/4/contributions/175/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/175/ END:VEVENT BEGIN:VEVENT SUMMARY:Wayland driver for Wine: The story so far DTSTART;VALUE=DATE-TIME:20231019T120000Z DTEND;VALUE=DATE-TIME:20231019T124500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-199@indico.freedesktop.org DESCRIPTION:Speakers: Alexandros Frantzis (Collabora)\nThe journey to impl ement a Wayland driver for Wine started a few years ago as an experiment w ith an uncertain future. Since then the experimental driver has grown to f ully support a multitude of GDI and GPU accelerated applications and games and is now in the process of being upstreamed.\n\nIn this talk I will pre sent the history of and future plans for the project. I will also discuss the challenges we faced in the development of the driver\, many of which a re rooted in the impedance mismatch between the Windows and Wayland worlds \, and our current solutions (or workarounds) to these challenges.\n\nhttp s://indico.freedesktop.org/event/4/contributions/199/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/199/ END:VEVENT BEGIN:VEVENT SUMMARY:Freedreno on Android DTSTART;VALUE=DATE-TIME:20231017T145000Z DTEND;VALUE=DATE-TIME:20231017T153500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-198@indico.freedesktop.org DESCRIPTION:Speakers: Lucas Fryzek (Igalia S.L.)\nOver the last few years the quality of Mesa's drivers has increased exponentially\, to the point w here many prefer the use of the open source driver to their proprietary co unterparts. Open source drivers can have better compatibility\, less bugs\ , and more frequent updates to resolve issues. Because of this uptick in q uality\, you may want to run the open source drivers on other operating sy stems such as Android.\n\nIn this talk we will explore the work that was r equired to get Freedreno running on Android. This will include setting up the development environment\, loading the driver on real hardware\, develo pment tips & tricks\, running tests\, setup of debugging environment\, iss ues encountered during the porting process\, and lastly we will explore so me areas of Mesa that could be updated to simplify porting to other operat ing systems. This talk should provide a guide for anyone looking to get th eir Mesa driver running on Android.\n\nhttps://indico.freedesktop.org/even t/4/contributions/198/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/198/ END:VEVENT BEGIN:VEVENT SUMMARY:Rusticl Status Update DTSTART;VALUE=DATE-TIME:20231018T101000Z DTEND;VALUE=DATE-TIME:20231018T103000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-207@indico.freedesktop.org DESCRIPTION:Speakers: Karol Herbst (Red Hat\, Nouveau)\nQuite a lot has ha ppened since last year and I want to talk about what we've implemented sin ce last year\, what's the short term lookout and other project related upd ates.\n\nhttps://indico.freedesktop.org/event/4/contributions/207/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/207/ END:VEVENT BEGIN:VEVENT SUMMARY:Wine & Windowing - An Impedance Mismatch DTSTART;VALUE=DATE-TIME:20231019T125000Z DTEND;VALUE=DATE-TIME:20231019T131000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-178@indico.freedesktop.org DESCRIPTION:Speakers: Arkadiusz Hiler (CodeWeavers)\nOne of the biggest ch allenges to have a good experience running Windows software on Linux via W ine (and the various downstreams\, including Proton) is windowing. Win32 A PI is very unlike what we have on X or Wayland.\n\nDisplaying and having a window behave correctly when alt+tabbing\, etc. is hard to get right and the whole area is quite brittle.\n\nI'm going to present challenges we are facing and how hacky some of solutions are. I hope to spark a discussion on how we can do things better and if we can cater to some of those needs on the X / Wayland side.\n\nhttps://indico.freedesktop.org/event/4/contrib utions/178/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/178/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of KUnit tests on DRM subsystem DTSTART;VALUE=DATE-TIME:20231017T125000Z DTEND;VALUE=DATE-TIME:20231017T131000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-179@indico.freedesktop.org DESCRIPTION:Speakers: Arthur Grillo Queiroz Cabral (University of São Pau lo)\, Carlos Eduardo Gallo Filho (University of São Paulo)\nThe KUnit ado ption in the kernel had been in its early stage\, having the first DRM KUn it tests into mainline only around the mid of 2022. Since then\, there was an active commitment to increase the presence of KUnit tests on DRM\, whi ch had involved porting existent self-tests and writing new ones.\n\nIn th is presentation\, we will point out the current status of KUnit tests on D RM\, as well as the path taken to it and what to expect in the future.\n\n https://indico.freedesktop.org/event/4/contributions/179/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/179/ END:VEVENT BEGIN:VEVENT SUMMARY:Defense in Depth: Isolating mesa from the kernel DTSTART;VALUE=DATE-TIME:20231018T131500Z DTEND;VALUE=DATE-TIME:20231018T133500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-180@indico.freedesktop.org DESCRIPTION:Speakers: Rob Clark (Google)\nIn the context of a web browser\ , GL and Vulkan drivers are exposed to hostile content\, in the form of we bgl and webgpu. In the case of Vulkan\, the spec explicitly declares that invalid usage is undefined behavior. But even for a GL driver it isn't s o hard to find a way to trigger a potentially exploitable crash. The brow ser can sandbox the usermode gl/vk driver (UMD) into it's own process with limited privileges. But the UMD still needs access the drm kernel driver (KMD).\n\nOr does it? Building on\, and re-using\, the drm native-contex t approach for running native UMD in a VM guest\, tunneling the interface to host KMD over virtgpu\, we can split kernel access into a hardened help er process with minimal performance penalty. In this way\, if (when) an a ttacker achieves code execution in the UMD\, they do not have a clear path to chain that exploit with a kernel bug to achieve code execution in the kernel.\n\nhttps://indico.freedesktop.org/event/4/contributions/180/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/180/ END:VEVENT BEGIN:VEVENT SUMMARY:With great power comes less responsibility DTSTART;VALUE=DATE-TIME:20231019T071500Z DTEND;VALUE=DATE-TIME:20231019T080000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-181@indico.freedesktop.org DESCRIPTION:Speakers: Boris Brezillon (Collabora)\, Danilo Krummrich (Red Hat)\nModern GPUs and modern graphics APIs leave less and less responsibil ities to kernel GPU drivers\, moving those to some firmware or to the user mode driver.\n\nThroughout this presentation we will detail some of the as pects that make recently submitted DRM drivers different from what we had previously\, and why things are structured like that. We will also give cl ues about what modern drivers should look like and the APIs that are being added or extended to facilitate their development\, all of this being bac ked by some examples gathered from the two GPU drivers we were involved in :\n\n - Panthor (formerly known as PanCSF)\, which is adding support for t he second iteration of Mali Valhall GPUs\n - PowerVR\, which is adding sup port for Series 6XT and Series A Imagination GPUs\n\nhttps://indico.freede sktop.org/event/4/contributions/181/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/181/ END:VEVENT BEGIN:VEVENT SUMMARY:GSoC 2023: wlroots frame scheduling DTSTART;VALUE=DATE-TIME:20231017T131500Z DTEND;VALUE=DATE-TIME:20231017T133500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-182@indico.freedesktop.org DESCRIPTION:Speakers: Rose Hudson (University of Bristol)\nOver the summer \, Future Me (hopefully) added support to wlroots for intelligently and dy namically changing when\, relative to a previous frame\, a compositor star ts to render. It's better to start it later for lower latency but that com es with a risk of missing the deadline if rendering takes longer than expe cted. The work includes an API for specifying when rendering should start and a "stock" algorithm for predicting a good value for that parameter\, a long with some necessary infrastructure in wlroots. I'll talk about how th e project went and what came out of it.\n\nhttps://indico.freedesktop.org/ event/4/contributions/182/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/182/ END:VEVENT BEGIN:VEVENT SUMMARY:Improving the World's Slowest Raytracer DTSTART;VALUE=DATE-TIME:20231017T140000Z DTEND;VALUE=DATE-TIME:20231017T144500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-183@indico.freedesktop.org DESCRIPTION:Speakers: Friedrich Vock (Valve Corporation)\nAt XDC 2022\, RA DV's raytracing implementation was dubbed the "World's Slowest Raytracer". Over the course of the last year\, RADV has seen lots of exciting progres s in its raytracing implementation: Starting with Mesa 23.2\, raytracing i s even enabled by default.\n\nThis talk will cover the challenges of impro ving RADV's implementation and making it work with more games and other so ftware\, as well as the milestones we've reached along the way. I'll also show how RADV raytracing stacks up today: What does and doesn't (yet) work \, and\, of course\, how the performance looks like.\n\nhttps://indico.fre edesktop.org/event/4/contributions/183/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/183/ END:VEVENT BEGIN:VEVENT SUMMARY:Having fun with GPU resets in Linux DTSTART;VALUE=DATE-TIME:20231018T122500Z DTEND;VALUE=DATE-TIME:20231018T131000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-205@indico.freedesktop.org DESCRIPTION:Speakers: André Almeida (Igalia)\nGPUs (and their stack) nowa days are too complex as any other systems and subject to errors and bugs. On top of that\, along with the device getting stuck\, all the stack need to propagate the error correctly so it can recover and move along.\n\nIn t his talk\, I'll present what happens after a DRM device resets in Linux\, the challenges in the way to recover from resets\, how to report what caus ed the reset in the first place and some proposals to improve the situatio n.\n\nhttps://indico.freedesktop.org/event/4/contributions/205/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/205/ END:VEVENT BEGIN:VEVENT SUMMARY:State of the X.Org Foundation DTSTART;VALUE=DATE-TIME:20231019T131500Z DTEND;VALUE=DATE-TIME:20231019T133000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-185@indico.freedesktop.org DESCRIPTION:Speakers: Daniel Vetter (Intel)\nState of the X.Org Foundation \n\nhttps://indico.freedesktop.org/event/4/contributions/185/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/185/ END:VEVENT BEGIN:VEVENT SUMMARY:The rainbow treasure map: advanced color management on Linux with AMD/Steam Deck DTSTART;VALUE=DATE-TIME:20231017T072000Z DTEND;VALUE=DATE-TIME:20231017T074000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-186@indico.freedesktop.org DESCRIPTION:Speakers: Melissa Wen (Igalia)\nA guided tour of the AMD displ ay driver code to identify hardware color capabilities on different versio ns\, connect relevant parts of the shared code to DRM\, and ultimately del iver a broader range of color features to the userspace. This work is anot her step towards advanced GPU-accelerated color management for Linux compo sitors\, and it has already enabled improvements to HDR display support in SteamOS/Gamescope. So\, what's the next treasure hunt?\n\nhttps://indico. freedesktop.org/event/4/contributions/186/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/186/ END:VEVENT BEGIN:VEVENT SUMMARY:Unleash the (graphics) magic DTSTART;VALUE=DATE-TIME:20231017T101500Z DTEND;VALUE=DATE-TIME:20231017T110000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-184@indico.freedesktop.org DESCRIPTION:Speakers: Lina Asahi ()\, Alyssa Rosenzweig ()\nTwelve moons a go\, we demoed early OpenGL 2.1 and OpenGL ES 2.0 drivers running on Linux on the Apple M1. Since then\, we've shipped OpenGL 3.1 and passed the Ope nGL ES 3.1 conformance tests on the M1 and M2 families! This spellbinding talk will reveal the hardware incantations that make the magic happen... i nvolving some *truly* cursed driver code. And yes\, there will be a demo 🪄\n\nhttps://indico.freedesktop.org/event/4/contributions/184/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/184/ END:VEVENT BEGIN:VEVENT SUMMARY:How does the Mesa3D CI manage to balance fast-paced development an d quality of the code? DTSTART;VALUE=DATE-TIME:20231018T071500Z DTEND;VALUE=DATE-TIME:20231018T080000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-193@indico.freedesktop.org DESCRIPTION:Speakers: David Heidelberg (Collabora)\, Sergi Blanch Torné ( Collabora)\nMesa3D CI\, through the use of GitLab CI pipelines\, conducts extensive testing across numerous farms and a multitude of GPUs. With thou sands of tests being run\, the scale and complexity of this project are im mense.\nFor over three years\, we've been running pre-merge testing for va rious GPUs. You might wonder\, how do we manage this feat?\nIn our present ation\, we will provide insights into the measures we've taken to manage a nd enhance this complex project. We will share intriguing details about ho w we maintain and improve our beloved CI. Furthermore\, we will give a gli mpse into the future developments planned for MesaCI. Join us as we unrave l the intricacies of our operations and discuss what lies ahead\n\nhttps:/ /indico.freedesktop.org/event/4/contributions/193/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/193/ END:VEVENT BEGIN:VEVENT SUMMARY:Writing compilers in Rust DTSTART;VALUE=DATE-TIME:20231017T092500Z DTEND;VALUE=DATE-TIME:20231017T101000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-210@indico.freedesktop.org DESCRIPTION:Speakers: Faith Ekstrand (Collabora)\nThe new back-end compile r for NVIDIA hardware\, jokingly named NAK\, has been almost entirely writ ten in Rust. In this talk\, Faith will do a bit of a postmortem on her Ru st compiler experience and talk about challenges and advantages of Rust fo r Mesa in general and compilers in particular.\n\nhttps://indico.freedeskt op.org/event/4/contributions/210/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/210/ END:VEVENT BEGIN:VEVENT SUMMARY:On-going challenges in the Raspberry Pi driver stack: OpenGL 3\, V ulkan and more DTSTART;VALUE=DATE-TIME:20231018T094500Z DTEND;VALUE=DATE-TIME:20231018T100500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-197@indico.freedesktop.org DESCRIPTION:Speakers: Iago Toral (Igalia\, S.L.)\, Juan A. Suarez (Igalia\ , S.L.)\, Maíra Canal (Igalia)\nThis talk will discuss various on-going e fforts in the driver stack for Raspberry Pi 4. Particularly:\n\n**OpenGL 3 .x on Raspberry Pi 4 (v3d)**\n\nThe Raspberry Pi 4 isn’t capable of Open GL 3 but it can implement a large part of it\, sufficient to enable many a pplications to work on the platform. We will discuss the major limitations of the hardware platform for this and what we are doing to close the gap as much as we can.\n\n**Improvements to CPU job handling in the Vulkan dri ver (v3dv)**\n\nAt XDC 2022 we discussed that one of the pain points in th e driver was the need to execute some parts of the command buffer in the C PU\, for things the GPU can’t do\, which required user-space flushes/sta lls and caused a number of issues. Here we will discuss some of the work w e have been doing to improve this situation using a combination of compute shaders and a new CPU kernel queue.\n\n**Global GPU stats**\n\nWe will di scuss our efforts to obtain global GPU usage stats from the kernel and on- going efforts in DRM to provide a cross-platform solution.\n\nhttps://indi co.freedesktop.org/event/4/contributions/197/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/197/ END:VEVENT BEGIN:VEVENT SUMMARY:etnaviv: status update DTSTART;VALUE=DATE-TIME:20231019T092000Z DTEND;VALUE=DATE-TIME:20231019T094000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-208@indico.freedesktop.org DESCRIPTION:Speakers: Christian Gmeiner ()\nThis talk will discuss various on-going efforts in the etnaviv driver stack.\n\n**Expanding the board fa rm**\n\nHaving a good CI coverage on different GPUs is crucial if we want to catch regressions before they are introduced into the codebase. I will present the current state of the CI board farm used to archive this job.\n \n**Road towards OpenGL ES 3.0**\n\nMore recent GPU models from VeriSilico n/Vivante support OpenGL ES 3.x more or less in pure hardware. I will disc uss the steps need to be taken to bring etnaviv to the next level and enab le support for this newer OpenGL ES version.\n\n**Legacy model love**\n\nT his section acknowledges the continued support for older GPU models and th eir ability to gain new features. We will have a brief look what clever so ftware/shader tricks we could use to help us out.\n\nhttps://indico.freede sktop.org/event/4/contributions/208/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/208/ END:VEVENT BEGIN:VEVENT SUMMARY:Zink: reducing stutters with uber shaders DTSTART;VALUE=DATE-TIME:20231017T120000Z DTEND;VALUE=DATE-TIME:20231017T124500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-204@indico.freedesktop.org DESCRIPTION:Speakers: Antonino Maniscalco (Collabora)\nBeing a layered Ope nGL driver\, Zink sometimes needs to emulate some legacy features\, that a re not exposed by vulkan\, using shader passes. Due to OpenGL's design it is not possible to know exactly what needs to be emulated ahead of time an d until now Zink has dealt with this by compiling shader variants at draw time\, leading to upwards of 100ms spikes in frametime. A possible way of solivng this is by creating some uber shaders as early as possible which c an handle different pipeline states dynamically. This talk will discuss so me details of how Zink currently handles shader compilation and caching\, the changes that were needed and also the challenges in adapting emulation passes for this purpose.\n\nhttps://indico.freedesktop.org/event/4/contri butions/204/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/204/ END:VEVENT BEGIN:VEVENT SUMMARY:Automated graphical testing on real hardware: adventures with Open QA DTSTART;VALUE=DATE-TIME:20231018T092000Z DTEND;VALUE=DATE-TIME:20231018T094000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-215@indico.freedesktop.org DESCRIPTION:Speakers: Sam Thursfield (Codethink\, GNOME)\nOpenQA is a powe rful testing tool developed originally for openSUSE and now used by variou s major distributions for integration testing. Within Codethink we're also using it to test mainline Linux on hardware across several CPU architectu res and GPU stacks.\n\nThis talk will show how to create screenshot tests that can quickly verify your graphics pipeline is working. First I'll show how to quickly run the tests in a developer laptop using the QEMU backend . Then we'll look at a pipeline that builds a custom kernel and tests it o n real hardware\, using the same OpenQA testsuite.\n\nhttps://indico.freed esktop.org/event/4/contributions/215/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/215/ END:VEVENT BEGIN:VEVENT SUMMARY:Hosting a CI system at home - Slaying the regression dragon to bri ng stability to driver kingdom DTSTART;VALUE=DATE-TIME:20231018T080500Z DTEND;VALUE=DATE-TIME:20231018T085000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-212@indico.freedesktop.org DESCRIPTION:Speakers: Martin Roukala (né Peres) (MuPuF TMI / Valve contra ctor)\, Eric Engestrom (Igalia / Mesa)\, David Heidelberg ()\nHear\, hear! \n\nCome witness the tale of a lone Mesa developer who\, after the 101st r egression caused by external changes\, vowed to slay the bisection dragon once and for all by guarding their driver kingdom with CI pre-merge testin g!\n\nToo little did they know the sirens of automated testing would take them on an unexpected journey in far-away lands they only ever heard tales of\, and tested their skills in new and scary ways on their path to self- discovery.\n\nThrough their years of battle\, they learned that the regres sion dragon is just one of the many monsters that are threatening its user s\, and became wise-enough to tame them and bring stability to the driver kingdom.\n\nCome to hear how!\n\n\n\nWorkshop instructions: \n\nhttps://in dico.freedesktop.org/event/4/contributions/212/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/212/ END:VEVENT BEGIN:VEVENT SUMMARY:Status Update of the VKMS DRM driver DTSTART;VALUE=DATE-TIME:20231018T103500Z DTEND;VALUE=DATE-TIME:20231018T105500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-176@indico.freedesktop.org DESCRIPTION:Speakers: Maíra Canal (Igalia)\, Melissa Wen (Igalia)\nIt has been a while since the last XDC talk about the VKMS and a lot has changed . VKMS now supports multiple formats\, the composition is now performed in CRTC\, the performance was improved and the planes now have the ability t o rotate. And there is more coming: 1D LUT\, multi-planar formats\, full b lend mode support...\n\nSo\, let's explore a bit of the current status of VKMS\, see the current state of its IGT test coverage\, and also cover som e current use cases for it.\n\nhttps://indico.freedesktop.org/event/4/cont ributions/176/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/176/ END:VEVENT BEGIN:VEVENT SUMMARY:Linux DRM Bridge: A Potential Replacer for the DRM Encoder to Stan dardise a Single API? DTSTART;VALUE=DATE-TIME:20231018T142500Z DTEND;VALUE=DATE-TIME:20231018T144500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-217@indico.freedesktop.org DESCRIPTION:Speakers: Jagan Teki (U-Boot Allwinner\, SPI\, SPI Flash Main tainer\, Linux DRM Bridge Contributor and Maintainer\, AI/Ml-enthusiast)\n Display and graphic drivers in Linux are part of the Linux DRM subsystem a nd are using DRM resources like memory management\, interrupt handling\, a nd DMA via Kernel Mode Settings (KMS) that act as an abstraction layer to provide uniform access to applications.\n\nEncoders are one of the key KMS components that takes pixel data from a CRTC and converts it to a format suitable for an attached connector. Early Linux-4.0 encoders play a crucia l role in connecting display hardware attributes to KMS however\, for new- age display solutions like Bridges\, Converters\, and Switches it becomes hard for the encoder to handle these topologies in order to support variou s functionalities.\n\nLinux-v4.0 has introduced a DRM bridge\, a linear li nk structure of objects always attached to a single encoder at a time and connected directly or chain of bridges to the connector of a given KMS pip eline. Supporting bridge chains to new-age display solutions will end up a n encoder becoming a dumb encoder without any operations limited.\n\nThis progressive change of moving the DRM drivers from the encoder to the bridg e will standardize the single API\, So it becomes simple and clear for imp lementing a drm drivers for new-age display solutions without touching the existing KMS pipeline.\n\nThis talk explains how the conversion of the en coder to bridge has been done by considering real-time solutions submitted to Mainline Linux on Samsung DSIM IP with a conclusion that are encoders replaced or removed from the drm stack?\n\nhttps://indico.freedesktop.org/ event/4/contributions/217/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/217/ END:VEVENT BEGIN:VEVENT SUMMARY:Debugging GPU faults: QoL tools for your driver DTSTART;VALUE=DATE-TIME:20231019T094500Z DTEND;VALUE=DATE-TIME:20231019T103000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-177@indico.freedesktop.org DESCRIPTION:Speakers: Danylo Piliaiev (Igalia S.L.)\nGPU faults aren't eas y to debug and half of the time near the end you think "What if I was able to quickly edit this GPU packet"\, "What if I was able to dump GPU memory here?"\, "It would have been nice to print that shader register!".\n\nFin ally I caved in and spent time implementing these little improvements for Turnip driver. Was it worth it? Spoiler: Yes!\n\nIn this talk I'll show un sophisticated tools that were written for Turnip which greatly improved th e debugging workflow and could be implemented in other drivers.\n\nhttps:/ /indico.freedesktop.org/event/4/contributions/177/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/177/ END:VEVENT BEGIN:VEVENT SUMMARY:Tuesday Opening Session DTSTART;VALUE=DATE-TIME:20231017T070000Z DTEND;VALUE=DATE-TIME:20231017T071500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-271@indico.freedesktop.org DESCRIPTION:Speakers: Samuel Iglesias Gonsálvez (Igalia)\nhttps://indico. freedesktop.org/event/4/contributions/271/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/271/ END:VEVENT BEGIN:VEVENT SUMMARY:Xen based GPU virtualization - VirtIO/Passthrough DTSTART;VALUE=DATE-TIME:20231018T140000Z DTEND;VALUE=DATE-TIME:20231018T142000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-216@indico.freedesktop.org DESCRIPTION:Speakers: Ray Huang (AMD)\nXen is one of the most popular hype rvisors in the world\, however\, the GPU virtualization on Xen is currentl y lacking in quite a few areas. VirtIO GPU is widely used on KVM\, but les s so on Xen and a number of features\, including vulkan\, are not currentl y functional in a guest VM.\nTo address this\, we are working to have more complete graphics and multimedia support on Xen. Earlier this year\, we s tarted pushing out the first patches[1] to support venus\, passthrough gpu \, and virgl video on Xen + QEMU\, and were invited to present it at the X en summit [2][3] in June. We have continued improving Xen support for GPU s\, adding new functionality like dGPU PRIME (Passthrough GPU rendering + VirtIO GPU display in one guest VM)\, and introducing virtio native contex t which is a more straightforward and performant way to use native drivers instead of virgl/venus in a guest VM.\nThis talk will provide an overview of AMDs experiences enabling GPU virtualization on Xen based platforms.\n \nReference:\n[1] https://www.phoronix.com/news/AMD-GPU-Better-Xen\n[2] ht tps://xen2023.sched.com/event/1LKln\n[3] https://www.phoronix.com/news/AMD -Xen-GPU-For-Cars\n[4] https://www.phoronix.com/news/AMD-GPU-Xen-Hyperviso r-S3\n[5] https://lore.kernel.org/lkml/20230312120157.452859-1-ray.huang@a md.com/\n[6] https://lore.kernel.org/xen-devel/20230312075455.450187-1-ray .huang@amd.com/ \n[7] https://lore.kernel.org/qemu-devel/20230312092244.45 1465-1-ray.huang@amd.com/ \n[8] https://gitlab.freedesktop.org/virgl/virgl renderer/-/merge_requests/1068 \n[9] https://gitlab.freedesktop.org/mesa/m esa/-/merge_requests/22108\n[10] https://gitlab.freedesktop.org/mesa/mesa/ -/merge_requests/23680\n\nhttps://indico.freedesktop.org/event/4/contribut ions/216/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/216/ END:VEVENT BEGIN:VEVENT SUMMARY:Rainbow Frogs: HDR + Color Management in Gamescope/SteamOS DTSTART;VALUE=DATE-TIME:20231017T074500Z DTEND;VALUE=DATE-TIME:20231017T080500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-202@indico.freedesktop.org DESCRIPTION:Speakers: Joshua Ashton (Valve Software)\nAn overview of Games cope and our journey to support HDR content and color management at scanou t and composite for Steam Deck and Desktop.\nCovering the issues we faced along the way from all aspects to UX\, to getting HDR and 10-bit on XWayla nd games/clients\, to DRM\, and to the future of what we need from the new DRM atomic color management pipeline.\n\nhttps://indico.freedesktop.org/e vent/4/contributions/202/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/202/ END:VEVENT BEGIN:VEVENT SUMMARY:Board of Directors Meeting DTSTART;VALUE=DATE-TIME:20231018T145000Z DTEND;VALUE=DATE-TIME:20231018T155000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-273@indico.freedesktop.org DESCRIPTION:https://indico.freedesktop.org/event/4/contributions/273/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/273/ END:VEVENT BEGIN:VEVENT SUMMARY:DRM MSM Display and Graphics Update DTSTART;VALUE=DATE-TIME:20231019T080500Z DTEND;VALUE=DATE-TIME:20231019T085000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-194@indico.freedesktop.org DESCRIPTION:Speakers: Abhinav Kumar (Qualcomm Innovation Center)\, Dmitry Baryshkov (Linaro)\, Rob Clark (Google)\nDRM MSM display and graphics driv er has evolved quite a bit over the years both in terms of feature set \, chipsets supported and also complexity.\n\nThis talk will focus broadly on the historical context \, achievements\, current IGT CI based workflow\, IGT bug fixes/enhancements which were done for MSM\, feature and chipset r oadmap (both current and near future) for display and graphics drivers.\n\ nhttps://indico.freedesktop.org/event/4/contributions/194/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/194/ END:VEVENT BEGIN:VEVENT SUMMARY:Thursday Opening Session DTSTART;VALUE=DATE-TIME:20231019T070000Z DTEND;VALUE=DATE-TIME:20231019T071000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-274@indico.freedesktop.org DESCRIPTION:Speakers: Samuel Iglesias Gonsálvez (Igalia)\nhttps://indico. freedesktop.org/event/4/contributions/274/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/274/ END:VEVENT BEGIN:VEVENT SUMMARY:Wayland Shells for Embedded Systems DTSTART;VALUE=DATE-TIME:20231019T103500Z DTEND;VALUE=DATE-TIME:20231019T105500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-200@indico.freedesktop.org DESCRIPTION:Speakers: Michael Tretter (Pengutronix)\nMany embedded Linux s ystems that feature a display\, nowadays\, use a Wayland compositor as the base for the GUI. Using standard desktop technology simplifies applicatio n development and increases consistency across products. However\, as a si gnificant difference to desktops\, the system developer – not the user – decides how to arrange the surfaces on the screen.\n\nVarious Wayland compositors and shells address the embedded use case in different ways and with varying complexity: The Weston kiosk-shell\, cage\, the agl-composit or\, the Weston IVI-shell\, and phosh are just a few examples. Each shell comes with its own set of hard-coded assumptions\, and the trade-offs and suitability for a certain use case may not be obvious at a first glance. O ften\, developers end up forking the compositor and hacking the shell unti l it fits the use case\, causing an additional maintenance burden and furt her fragmentation of the ecosystem.\n\nI will give an overview of use case s and requirements of different GUIs in embedded systems\, highlight the d ifferences between the existing shells\, and spark a discussion\, how to i mprove the flexibility and reuse of Wayland shells for future embedded use cases.\n\nhttps://indico.freedesktop.org/event/4/contributions/200/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/200/ END:VEVENT BEGIN:VEVENT SUMMARY:Closing Session DTSTART;VALUE=DATE-TIME:20231019T152000Z DTEND;VALUE=DATE-TIME:20231019T153500Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-275@indico.freedesktop.org DESCRIPTION:Speakers: Samuel Iglesias Gonsálvez (Igalia)\nhttps://indico. freedesktop.org/event/4/contributions/275/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/275/ END:VEVENT BEGIN:VEVENT SUMMARY:Wednesday Opening Session DTSTART;VALUE=DATE-TIME:20231018T070000Z DTEND;VALUE=DATE-TIME:20231018T071000Z DTSTAMP;VALUE=DATE-TIME:20260818T114200Z UID:indico-contribution-23-272@indico.freedesktop.org DESCRIPTION:Speakers: Samuel Iglesias Gonsálvez (Igalia)\nhttps://indico. freedesktop.org/event/4/contributions/272/ LOCATION:Palexco URL:https://indico.freedesktop.org/event/4/contributions/272/ END:VEVENT END:VCALENDAR