FERRAMENTAS LINUX: RADV Driver Adds Support for VK_NV_cooperative_matrix2: Boosting FSR4 & Linux Gaming Performance

quarta-feira, 25 de junho de 2025

RADV Driver Adds Support for VK_NV_cooperative_matrix2: Boosting FSR4 & Linux Gaming Performance

 

Mesa

RADV Vulkan driver now supports NVIDIA’s VK_NV_cooperative_matrix2 extension, boosting FSR4 & VKD3D-Proton performance for Linux gaming. Learn how this update impacts AMD GPU optimization & high-end gaming.


A Major Step for Vulkan & Linux Gaming

The Mesa Radeon Vulkan driver (RADV) has quietly introduced partial support for NVIDIA’s VK_NV_cooperative_matrix2 extension, a crucial advancement for GPU compute performance—particularly for FidelityFX Super Resolution 4 (FSR4) and VKD3D-Proton.

 While still experimental, this update signals AMD’s commitment to improving Linux gaming performance through enhanced Vulkan compatibility.

What Is VK_NV_cooperative_matrix2?

VK_NV_cooperative_matrix2 is an NVIDIA Vulkan extension that builds upon VK_KHR_cooperative_matrix, expanding GPU compute capabilities beyond GEMM (General Matrix Multiply) kernels

Introduced in Vulkan 1.3.300, this extension enhances AI upscaling, ray tracing, and shader optimizations—critical for next-gen gaming and machine learning workloads.

Key Features of the Extension:

  • CooperativeMatrixConversionsNV – Optimized for matrix data transformations

  • Support for mixed-precision operations – Improving efficiency in AI-driven rendering

  • Enhanced compatibility with Direct3D 12 via VKD3D-Proton – A win for Windows-to-Linux gaming


RADV’s Implementation: Current Limitations & Use Cases

The Mesa 25.2 update includes limited support for VK_NV_cooperative_matrix2, but it remains disabled by default. Users must enable it manually via:

ini
radv_cooperative_matrix2_nv = true  

Performance Insights from Developer Georg Lehmann

In the merge request, Lehmann clarified:

*"Only ACC → B conversion is fast (free on GFX12). Other operations, like ACC/B → A conversion, are slower. Unfortunately, ACC → A transpose isn’t supported, which would have been ideal for AMD hardware."*

 

Why This Matters for Gamers & Developers


  • FSR4 Optimization – Better AI upscaling performance in Linux games

  • VKD3D-Proton Improvements – Smoher DirectX 12 → Vulkan translation

  • Future-Proofing – Prepares AMD GPUs for advanced compute workloads


Conclusion: What’s Next for RADV & Vulkan?

This update is a stepping stone toward broader Vulkan compute optimizations, particularly for AMD GPUs in Linux gaming. While still in early stages, the focus on FSR4 and VKD3D-Proton suggests future performance gains for high-end gaming.


🔹 Want the best Vulkan performance? Enable radv_cooperative_matrix2_nv and test FSR4 today!
🔹 Follow for more GPU & Linux gaming updates!


FAQs (For SEO & Engagement)

Q: How do I enable VK_NV_cooperative_matrix2 in RADV?

A: Add radv_cooperative_matrix2_nv = true to your DriConf settings.

Q: Will this improve FSR4 performance?

A: Yes, but optimizations are still early-stage.

Q: Is this extension useful for non-gaming workloads?

A: Potentially—AI/ML tasks may benefit from improved matrix ops.



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