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Re: [RFC PATCH net-next 08/13] drm/amdkfd: add GPU instruction emitter and disassembler

by Andrew Lunn

On Mon, Jul 20, 2026 at 10:05:33PM +0200, Natalie Vock wrote: > On 7/19/26 19:58, Taehee Yoo wrote: > > Add the AMD GCN (gfx9/gfx10) instruction encoder used to build the GPU > > shaders that knod dispatches, plus a matching disassembler used for > > debugging the generated code. > > Is it really necessary to have a full-on compiler and disassembler in the > kernel driver? This patch is massive and I'm wondering how much benefit it > really provides. Is there really no way to move GPU compilation out of the > kernel, one way or another? Could you get acceptable perf with a static > shader that interprets BPF programs at runtime? Such a shader can be > compiled beforehand and just embedded into the kernel - there's prior art > there with the CWSR trap handler in amdkfd. > > In case you really, really need to compile the BPF to native ISA, could you > still have userspace take care of that in one way or another? There was a long and painful discussion about P4, and offloading it to hardware. The proponents of that wanted to do the compilation stage in user space to produce a binary blob, but it was hard to prove that the P4 passed to the kernel for software processing, and the binary blob passed to the hardware actually where the same. It opened up the path for closed source P4 where the kernel never got to see the actual P4 code. So it was not really offload, but kernel bypass. So having a compiler in the kernel is probably the correct way to go, if you want to be friendly to open source. The other option is to get the GPU to do the compilation itself, so you pass BPF byte codes to the GPU and it generates its own native code. I've no idea if that is possible, but clang can target OpenMP, so maybe it is possible to move this compiler into the GPU? Andrew

3 days, 21 hours

[PATCH v2 0/2] drm/drm_crtc: dma_fence_ops fixes

by André Draszik

Hi, These patches fix two issues in the drm/drm_crtc driver. Initially I was hitting the BUG_ON() in a scenario as explained in the commit message of what is now the second patch in this series. For the reasons outlines there, the BUG_ON() should just be removed. After posting, sashiko.dev noticed another issue, that was previously masked by the now-removed BUG_ON(). Since we can't have a loud BUG() be replaced with silent data corruption or worse, I've also added a patch to address this issue highlighted by sashiko.dev. I believe its observation and analysis to be correct. Cheers, Andre' Signed-off-by: André Draszik <andre.draszik(a)linaro.org> --- Changes in v2: - add new patch 1 to address sashiko observation - original patch 1 becomes patch 2 - patch 2: - don't turn fence_to_crtc() into macro (Jani, Philipp) - update commit message to include reference to deprecated use of BUG - Link to v1: https://lore.kernel.org/r/20260618-linux-drm_crtc_fix2-v1-1-c03e77b36f34@li… --- André Draszik (2): drm/drm_crtc: ensure dma_fence_ops remain valid during device unbind drm/drm_crtc: fix race with dma_fence_signal() in ::get_driver_name() drivers/gpu/drm/drm_crtc.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- base-commit: b9810cd75b9fb56a3425d391cba3f608502bd474 change-id: 20260618-linux-drm_crtc_fix2-23a7c354a412 Best regards, -- André Draszik <andre.draszik(a)linaro.org>

4 days, 6 hours

Slice Master: A Relaxing Game of Timing and Precision

by profound.cheetah.kect＠hidingmail.net

Some games are enjoyable because they are challenging, while others are fun because they are simple to understand and easy to pick up. Slice Master belongs to the second category. It offers a straightforward concept: control a moving blade and slice objects while avoiding obstacles. Although the rules are easy to learn, improving your accuracy and reaching higher scores can take patience. The game is suitable for short breaks, casual play, or anyone who enjoys timing-based challenges. Each level introduces new situations, making the experience feel fresh without overwhelming players with complicated instructions. https://slicemasterfree.com Gameplay The main goal is to guide the blade through each level and cut as many suitable objects as possible. In many stages, the blade moves automatically, while the player controls its direction by clicking, tapping, or pressing a key. The timing of each movement is important. Players need to watch the layout carefully. Some objects are safe to slice, while others may slow progress, end the round, or send the blade in an unexpected direction. Platforms, gaps, spikes, and other obstacles can make even a simple level surprisingly tricky. As you continue, the game often becomes a test of rhythm and reaction. Instead of rushing, it helps to observe the movement pattern and decide when to make the next input. The satisfying part comes from completing a sequence of clean cuts and reaching the goal with good control. Tips for Better Results First, focus on timing rather than speed. Moving too quickly can cause the blade to miss targets or hit an obstacle. Wait for the right opening, especially when several hazards appear close together. Second, learn from mistakes. If a level ends unexpectedly, think about what caused it. You may have jumped too early, approached an obstacle from the wrong angle, or overlooked a safe platform. Repeating the stage with that information can make the next attempt much easier. It is also useful to keep your movements small and deliberate. Sudden changes may be difficult to correct, while gentle adjustments give you more control. When a level contains multiple targets, consider the safest route instead of trying to slice everything immediately. Finally, take breaks when the game starts to feel frustrating. Returning with a clear mind often improves concentration and reaction time. Conclusion Slice Master is an accessible game built around simple controls, quick decisions, and satisfying progress. Its appeal comes from the balance between easy-to-understand gameplay and increasingly demanding levels. Whether you play for a few minutes or try to improve your best run, it offers a pleasant way to practice timing and precision. For players who enjoy casual challenges, Slice Master is worth experiencing. Just stay patient, watch the obstacles, and let each attempt teach you something new.

4 days, 9 hours

Space Waves

by blanchehughes54＠gmail.com

Space Waves features simple controls but intense gameplay. Players must carefully time their movements to avoid crashing into obstacles in a constantly moving environment https://space-waves.co

4 days, 10 hours

Why Everyone Is Secretly Obsessed With Papa's Freezeria Again

by tyne136＠web-library.net

There's a special kind of joy found in simple, well-crafted browser games. They offer a perfect escape, a little world where you can master a skill and see happy, pixelated customers walk away satisfied. If you're looking for a delightful dive into the world of time-management and creative concoctions, look no further than the charming world of Papa Louie, specifically his sun-soaked sundae shop. Let’s take a closer look at how to get started in the wonderful world of Papa's Freezeria - https://papasfreezeriatogo.com The Daily Grind: Gameplay Basics Welcome to Calypso Island! You’ve just landed a relaxing summer job at Papa Louie’s new ice cream shop. The catch? Papa Louie takes off, leaving you in charge of the whole operation. Your goal is simple: create delicious frozen sundaes for a lineup of quirky and increasingly demanding customers. The gameplay is broken down into four distinct stations: Order Station: A customer arrives and places their order. Your first task is to take it accurately. Pay close attention to the size, mixables, and toppings they want. Build Station: Here, you pour the ice cream base and add the requested mixable ingredients, like strawberries or cookie dough. Mix Station: This is where the magic happens. You’ll place the cup onto a blender to mix it to the perfect consistency. Don't over or under-mix! A meter will guide you to the sweet spot. Top Station: The final flourish! You’ll add whipped cream, syrups, and sprinkles according to the customer's ticket. Precision is key—drizzling sauce evenly and placing cherries just right will earn you a better score. After you serve the sundae, the customer will grade you on your performance at each station. A higher score means a bigger tip, which you can use to upgrade your shop or customize your character.

4 days, 14 hours

Mastering Slope Game: How to Survive the Endless 3D Descent

by occupational249＠web-library.net

Ever found yourself yearning for a game that’s easy to pick up but surprisingly difficult to master? Something that tests your reflexes and keeps you coming back for "just one more run"? Look no further than Slope Game. This captivating online title offers a pure, unadulterated dose of arcade fun, perfect for quick breaks or extended sessions of focused gameplay. Play at: https://slopegame.lol The Simple Premise: Ride the Slope At its core, Slope Game is a fast-paced, "endless runner" style game where you control a ball rolling down a never-ending slope. The objective? Avoid falling off the edge, dodge numerous obstacles, and rack up the highest score possible. There's no complex storyline, no skill trees, and no in-game purchases – just you, a ball, and a perilous downhill journey. The beauty lies in its simplicity. The controls are intuitive: you use the arrow keys (or A/D) to steer your ball left and right, guiding it along the winding track. This minimalist approach allows you to jump straight into the action, making it incredibly accessible for players of all ages and skill levels. Gameplay: The Thrill of the Roll Once you hit "play," you’re immediately immersed in a vibrant, futuristic landscape. The slope is composed of green, geometric platforms, constantly shifting and presenting new challenges. As your ball gathers speed, the intensity ramps up. Red obstacles appear, requiring quick reflexes to steer around them. Gaps in the track demand precise movements to avoid plummeting into the void below. The game’s dynamic environment ensures that no two runs are ever exactly alike, keeping the experience fresh and engaging. A crucial element of the gameplay is the feeling of momentum. As you descend, your ball picks up speed, making steering more challenging but also more exhilarating. There's a subtle satisfaction in expertly navigating a tight turn at high velocity, a testament to your growing mastery of the controls. The game’s clean, almost hypnotic visual style, coupled with its driving soundtrack, creates an immersive atmosphere that pulls you deeper into the challenge. Tips for Taming the Track While simple to understand, achieving a high score in Slope Game requires practice and a few strategic insights. Here are some tips to help you conquer the descent: Small Adjustments are Key: Resist the urge to oversteer. Gentle taps of the arrow keys are often more effective than holding them down, especially at higher speeds. Think of it as fine-tuning your path rather than abrupt turns. Anticipate, Don't React: The best players don't just react to obstacles; they anticipate them. Keep your eyes further down the track to spot upcoming challenges and plan your movements accordingly. Prioritize Survival over Speed: While speed is exhilarating, staying on the track is paramount. Don't risk a fall just to maintain maximum velocity. Sometimes a slight deceleration or wider turn is the smarter choice. Learn from Your Fails: Every time you fall, take a moment to understand why. Did you oversteer? Were you too slow to react? Use each setback as a learning opportunity to improve your next run. Find Your Flow: Like many skill-based games, Slope Game often comes down to finding a rhythm. Once you enter that "flow state," where your movements become almost intuitive, you'll see your scores soar. Conclusion: A Timeless Test of Skill Slope Game is more than just a quick diversion; it's a testament to the enduring appeal of well-designed arcade experiences. Its straightforward premise, engaging gameplay, and satisfying challenge make it a perfect choice for anyone looking to test their reflexes and unwind with a truly addictive title. So, the next time you have a few minutes to spare, why not give it a try? You might just find yourself hooked on the thrill of the endless roll.

6 days, 10 hours

Mastering Slope Game: How to Survive the Endless 3D Descent

by occupational249＠web-library.net

6 days, 10 hours

by foltzbutman＠gmail.com

6 days, 19 hours

by foltzbutman＠gmail.com

6 days, 19 hours

by foltzbutman＠gmail.com

6 days, 19 hours

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