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diff --git a/html/notes/2024_igalia_graphics_team.html b/html/notes/2024_igalia_graphics_team.html new file mode 100644 index 0000000..bd77ae2 --- /dev/null +++ b/html/notes/2024_igalia_graphics_team.html @@ -0,0 +1,342 @@ +<!doctype html> + +<html class="html-note-page" lang="en"> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + + <title>2024 Graphics Team Contributions at Igalia</title> + <meta name="dcterms.date" content="2024-12-20" /> + + <link rel="stylesheet" href="/assets/style.css"> + <link rel="icon" type="image/x-icon" href="/assets/favicon.svg"> + <link rel="alternate" type="application/atom+xml" title="Fryzek Concepts" href="/feed.xml"> +</head> + +<body> + <div class="header-bar"> + <a href="/index.html"> + <img src="/assets/favicon.svg" alt="frycon logo"> + </a> + <div class="header-links"> + <a href="/now.html" class="header-link">Now</a> + <a href="/about.html" class="header-link">About</a> + <a rel="me" href="https://mastodon.social/@hazematman" class="header-link">Social</a> + <a href="https://git.fryzekconcepts.com" class="header-link">Code</a> + </div> + </div> + <main> +<div class="page-title-header-container"> + <h1 class="page-title-header">2024 Graphics Team Contributions at +Igalia</h1> + <div class="page-info-container"> + <div class="plant-status"> + <img src="/assets/evergreen.svg"> + <div class="plant-status-text"> + <p>evergreen</p> + </div> + </div> + <div class="page-info-date-container"> + <p class="page-info-date">Published: 2024-12-20</p> + <p class="page-info-date">Last Edited: 2024-12-27</p> + </div> + </div> + </div> +<div class="note-divider"></div> +<div class="main-container"> + <div class="note-body"> +<p>2024 has been an exciting year for the <a +href="https://www.igalia.com/technology/graphics">Igalia’s Graphics +Team</a>. We’ve been making a lot of progress on Turnip, AMD display +driver, the Raspberry Pi graphics stack, Vulkan video, and more.</p> +<h2 id="vulkan-device-generated-commands">Vulkan Device Generated +Commands</h2> +<p>Igalia’s Ricardo Garcia has been working hard on adding support for +the new <code>VK_EXT_device_generated_commands</code> extension in the +Vulkan Conformance Test Suite. He wrote an excellent blog post on the +extension and on his work that you can read <a +href="https://rg3.name/202409270942.html">here</a>. Ricardo also +presented the extension at XDC 2024 in Montréal, which he also <a +href="https://rg3.name/202411181555.html">blogged about</a>. Take a look +and see what generating Vulkan commands directly on the GPU looks +like!</p> +<h2 id="raspberry-pi-enhancements-performance-improvements">Raspberry Pi +Enhancements & Performance Improvements</h2> +<p>Our very own Maíra Canal made a big contribution to improve the +graphics performance of Raspberry Pi 4 & 5 devices by introducing +support for “Super Pages”. She wrote an excellent and detailed blog post +on what Super Pages are, how they improve performance, and comparing +performance of different apps and games. You can read all the juicy +details <a +href="https://mairacanal.github.io/unleashing-power-enabling-super-pages-on-RPi/">here</a>.</p> +<p>She also worked on introducing CPU jobs to the Broadcom GPU kernel +driver in Linux. These changes allow user space to implement jobs that +get executed on the CPU in sync with the work on the GPU. She wrote a +great blog post detailing what CPU jobs allow you to do and how they +work that you can read <a +href="https://mairacanal.github.io/introducing-cpu-jobs-to-the-rpi/">here</a>.</p> +<p>Christian Gmeiner on the Graphics team has also been working on +adding Perfetto support to Broadcom GPUs. Perfetto is a performance +tracing tool and support for it in Broadcom drivers will allow to +developers to gain more insight into bottlenecks of their GPU +applications. You can check out his changes to add support in the +following MRs: - <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31575">MR +31575</a> - <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32277">MR +32277</a> - <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31751">MR +31751</a></p> +<p>The Raspberry Pi team here at Igalia presented all of their work at +XDC 2024 in Montréal. You can see a video below.</p> +<p><div class="youtube-video"><iframe src="https://www.youtube.com/embed/tlSFHkp6ODM"></iframe></div></p> +<h2 id="linux-kernel-6.8">Linux Kernel 6.8</h2> +<p>A number of Igalians made several contributions to the Linux 6.8 +kernel release back in March of this year. Our colleague Maíra wrote a +great blog post outlining these contributions that you can read <a +href="https://mairacanal.github.io/introducing-cpu-jobs-to-the-rpi/">here</a>. +To highlight some of these contributions:</p> +<ul> +<li>AMD HDR & Color Management +<ul> +<li>Melissa Wen has been working on improving and implementing HDR +support in AMD’s display driver as well as working on color management +in the Linux display stack.</li> +</ul></li> +<li>Async Flip +<ul> +<li>André Almeida implemented support for asynchronous page flip in the +atomic DRM modesetting API.</li> +</ul></li> +<li>V3D 7.1.x Kernel Driver +<ul> +<li>Iago Toral contributed a number of patches upstream to get the +Broadcom DRM driver working with the latest Broadcom hardware used in +the Raspberry Pi 5.</li> +</ul></li> +<li>GPU stats for the Raspberry Pi 4/5 +<ul> +<li>José María “Chema” Casanova worked on adding GPU stats support to +the latest Raspberry Pi hardware.</li> +</ul></li> +</ul> +<h2 id="turnip-improvements">Turnip Improvements</h2> +<p>Dhruv Mark Collins has been very hard at work to try and bring +performance parity between Qualcomm’s proprietary driver and the open +source Turnip driver. Two of his big contributions to this were +improving the 2D buffer to image copies on A7XX devices, and +implementing unidirectional Low Resolution Z (LRZ) on A7XX devices. You +can see the MR for these changes <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31401">here</a> +and <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29453">here</a>.</p> +<p>A new member of the Igalia Graphics Team Karmjit Mahil has been +working on different parts of the Turnip stack, but one notable +improvement he made was to improve <code>fmulz</code> handling for +Direct3D 9. You can check out his changes <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31479">here</a> +and read more about them.</p> +<p>Danylo Piliaiev has been hard at work adding support for the latest +generation of Adreno GPUs. This included getting support for the <a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26934">A750 +working</a>, and then implementing performance improvements to bring it +up to parity with other Adreno GPUs in Turnip. He also worked on +implementing a number of Vulkan extensions and performance improvements +such as:</p> +<ul> +<li>VK_KHR_shader_atomic_int64 +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27776">MR +27776</a></li> +</ul></li> +<li>VK_KHR_fragment_shading_rate +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30905">MR +30905</a></li> +</ul></li> +<li>VK_KHR_8bit_storage +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28254">MR +28254</a></li> +</ul></li> +<li>shaderInt8 feature +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29875">MR +29875</a></li> +</ul></li> +<li>VK_KHR_shader_subgroup_rotate +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31358">MR +31358</a></li> +</ul></li> +<li>VK_EXT_map_memory_placed +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28928">MR +28928</a></li> +</ul></li> +<li>VK_EXT_legacy_dithering +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30536">MR +30536</a></li> +</ul></li> +<li>VK_EXT_depth_clamp_zero_one +<ul> +<li><a +href="https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29387">MR +29387</a></li> +</ul></li> +</ul> +<h2 id="display-next-hackfest-displaykms-meet-up">Display Next Hackfest +& Display/KMS Meet-up</h2> +<p>Igalia hosted the 2024 version of the Display Next Hackfest. This +community event is a way to get Linux display developers together to +work on improving the Linux display stack. Our Melissa Wen wrote a blog +post about the event and what it was like to organize it. You can read +all about it <a +href="https://melissawen.github.io/blog/2024/09/25/reflections-2024-display-next-hackfest">here</a>.</p> +<figure> +<img +src="https://raw.githubusercontent.com/melissawen/melissawen.github.io/refs/heads/master/img/2024-ldnh/hackfest-room-0.jpg" +alt="Display Next Hackfest" /> +<figcaption aria-hidden="true">Display Next Hackfest</figcaption> +</figure> +<p>Just in-case you thought you couldn’t get enough Linux display stack, +Melissa also helped organize a Display/KMS meet-up at XDC 2024. She +wrote all about that meet-up and the progress the community made on her +blog <a +href="https://melissawen.github.io/blog/2024/11/19/summary-display-kms-meeting-xdc2024">here</a>.</p> +<h2 id="amd-display-amdgpu">AMD Display & AMDGPU</h2> +<p>Melissa Wen has also been hard at work improving AMDGPU’s display +driver. She made a number of changes including <a +href="https://lore.kernel.org/amd-gfx/ea31b795-5b75-40e6-846e-51dc6696f8bc@amd.com/#t">improving +display debug log</a> to include hardware color capabilities, <a +href="https://lore.kernel.org/amd-gfx/20240927230600.2619844-1-superm1@kernel.org/">Migrating +EDID handling to EDID common code</a> and various bug fixes such as:</p> +<ul> +<li>Fixing null-pointer dereference on edid reading +<ul> +<li><a +href="https://lore.kernel.org/amd-gfx/20240216122401.216860-1-mwen@igalia.com/">https://lore.kernel.org/amd-gfx/20240216122401.216860-1-mwen@igalia.com/</a></li> +</ul></li> +<li>Checking dc_link before dereferencing +<ul> +<li><a +href="https://lore.kernel.org/amd-gfx/20240227190828.444715-1-mwen@igalia.com/">https://lore.kernel.org/amd-gfx/20240227190828.444715-1-mwen@igalia.com/</a></li> +</ul></li> +<li>Using mpcc_count to log MPC state +<ul> +<li><a +href="https://lore.kernel.org/amd-gfx/20240412163928.118203-1-mwen@igalia.com/">https://lore.kernel.org/amd-gfx/20240412163928.118203-1-mwen@igalia.com/</a></li> +</ul></li> +<li>Fixing cursor offset on rotation 180 +<ul> +<li><a +href="https://lore.kernel.org/amd-gfx/20240807075546.831208-22-chiahsuan.chung@amd.com/">https://lore.kernel.org/amd-gfx/20240807075546.831208-22-chiahsuan.chung@amd.com/</a></li> +</ul></li> +<li>Fixes for kernel crashes since cursor overlay mode +<ul> +<li><a +href="https://lore.kernel.org/amd-gfx/20241217205029.39850-1-mwen@igalia.com/">https://lore.kernel.org/amd-gfx/20241217205029.39850-1-mwen@igalia.com/</a></li> +</ul></li> +</ul> +<p>Tvrtko Ursulin, a recent addition to our team, has been working on +fixing issues in AMDGPU and some of the Linux kernel’s common code. For +example, he worked on fixing bugs in the DRM scheduler around missing +locks, optimizing the re-lock cycle on the submit path, and cleaned up +the code. On AMDGPU he worked on improving memory usage reporting, +fixing out of bounds writes, and micro-optimized ring emissions. For DMA +fence he simplified fence merging and resolved a potential memory leak. +Lastly, on workqueue he fixed false positive sanity check warnings that +AMDGPU & DRM scheduler interactions were triggering. You can see the +code for some of changes below: - <a +href="https://lore.kernel.org/amd-gfx/20240906180639.12218-1-tursulin@igalia.com/">https://lore.kernel.org/amd-gfx/20240906180639.12218-1-tursulin@igalia.com/</a> +- <a +href="https://lore.kernel.org/amd-gfx/20241008150532.23661-1-tursulin@igalia.com/">https://lore.kernel.org/amd-gfx/20241008150532.23661-1-tursulin@igalia.com/</a> +- <a +href="https://lore.kernel.org/amd-gfx/20241227111938.22974-1-tursulin@igalia.com/">https://lore.kernel.org/amd-gfx/20241227111938.22974-1-tursulin@igalia.com/</a> +- <a +href="https://lore.kernel.org/amd-gfx/20240813135712.82611-1-tursulin@igalia.com/">https://lore.kernel.org/amd-gfx/20240813135712.82611-1-tursulin@igalia.com/</a> +- <a +href="https://lore.kernel.org/amd-gfx/20240712152855.45284-1-tursulin@igalia.com/">https://lore.kernel.org/amd-gfx/20240712152855.45284-1-tursulin@igalia.com/</a></p> +<h2 id="vulkan-opengl-extensions">Vulkan & OpenGL Extensions</h2> +<ul> +<li><code>GL_EXT_texture_offset_non_const</code> +<ul> +<li>Ricardo was busy working on extending OpenGL by adding <a +href="https://github.com/KhronosGroup/GLSL/blob/main/extensions/ext/GL_EXT_texture_offset_non_const.txt">this</a> +extension to GLSL as well as providing an implementation for it in <a +href="https://github.com/KhronosGroup/glslang/pull/3782">glslang</a></li> +</ul></li> +<li><code>VK_KHR_video_encode_av1</code> & +<code>VK_KHR_video_decode_av1</code> +<ul> +<li>Igalia is listed as a contributor to these extensions and worked +very hard to implement CTS support for the extensions.</li> +</ul></li> +</ul> +<h2 id="etnaviv-improvements">Etnaviv Improvements</h2> +<p>Christian Gmeiner, one of the maintainers of the Etnaviv driver for +Vivante GPUs, has been hard at work this year to make a number of big +improvements to Etnaviv. This includes using hwdb to detect GPU +features, which he wrote about <a +href="https://christian-gmeiner.info/2024-04-12-hwdb/">here</a>. Another +big improvement was migrating Etnaviv to use isaspec for the GPU isa +description, allowing an assembler and disassembler to be generated from +XML. This also allowed Etnaviv to reuse some common features in Mesa for +assemblers/disassemblers and take advantage of the python code +generation features others in the community have been working on. He +wrote a detailed blog about it, that you can find <a +href="https://christian-gmeiner.info/2024-07-11-it-all-started-with-a-nop-part1/">here</a>. +On the same vein of Etnaviv infrastructure improvements, Christian has +also been working on a new shader compiler, written in Rust, called +“EBC”. Christian presented this new shader compiler at XDC 2024 this +year. You can check out his presentation below.</p> +<p><div class="youtube-video"><iframe src="https://www.youtube.com/embed/n_fn4evXeZo"></iframe></div></p> +<p>On the side of new features, Christian landed a big one in Mesa 24.03 +for Etnaviv: Multiple Render Target (MRT) support! This allows games and +applications to render to multiple render targets (think framebuffers) +in a single graphics operations. This feature is heavily used by +deferred rendering techniques, and is a requirement for later versions +of desktop OpenGL and OpenGL ES 3. Keep an eye on <a +href="https://christian-gmeiner.info/">Christian’s blog</a> to see any +of his future announcements.</p> +<h2 id="lavapipellvmpipe-android-chromeos">Lavapipe/LLVMpipe, Android +& ChromeOS</h2> +<p>I had a busy year working on improving Lavapipe/LLVMpipe platform +integration. This started with adding support for DMABUF import/export, +so that the display handles from Android Window system could be properly +imported and mapped. Next came Android window system integration for DRI +software rendering backend in EGL, and lastly but most importantly came +updating the documentation in Mesa for building Android support. I wrote +all about this effort <a href="/notes/android_swrast.html">here</a>.</p> +<p>The latter half on the year had me working on improving lavapipe’s +integration with ChromeOs, and having Lavapipe work as a host Vulkan +driver for Venus. You can see some of the changes I made in +virglrenderer <a +href="https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/1458">here</a> +and crosvm <a +href="https://gitlab.freedesktop.org/Hazematman/crosvm/-/commit/9ee86e72edfb3a652148dd233ffca75847949558">here</a>. +This work is still ongoing.</p> +<h2 id="whats-next">What’s Next?</h2> +<p>We’re not planning to stop our 2024 momentum, and we’re hopping for +2025 to be a great year for Igalia and the Linux graphics stack! I’m +booked to present about <a +href="https://www.vulkan.org/events/vulkanised-2025#agenda">Lavapipe at +Vulkanised 2025</a>, where Ricardo will also present about +Device-Generated Commands. Maíra & Chema will be presenting together +at FOSDEM 2025 about improving performance on Raspberry Pi GPUs, and +Melissa will also present about kworkflow there. We’ll also be at XDC +2025, networking and presenting about all the work we are doing on the +Linux graphics stack. Thanks for following our work this year, and +here’s to making 2025 an even better year for Linux graphics!</p> + </div> +</div> </main> +</body> +</html> |