Well known open-source AMD Mesa developer Marek Olšák has landed his latest set of 16 patches into Mesa 25.3-devel for enhancing the RadeonSI Gallium3D driver. Notable here is getting OpenGL sparse textures working on the latest Radeon RX 9000 series RDNA4/GFX12 graphics cards.

Marek has been working on some LLVM integration clean-ups, some NIR improvements, and other code fixes as part of this patch series . What's notable from there is now enabling sparse textures on GFX12 hardware, a.k.a. the Radeon RX 9000 / RDNA4 GPUs.

The sparse textures support was late for RDNA4 but alas this is only for RadeonSI / OpenGL and ultimately not too important these days compared to Vulkan. In any case with Mesa 25.3-devel the RadeonSI sparse texture support is now working for these newest AMD GPUs.