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By Zayden R., September 4, 2026
Mesa 26.3 now supports Intel Nova Lake P's new 64-bit GPU mode, marking a fundamental shift in shader addressing. This development is crucial for engineers working with Intel's upcoming graphics technologies.
Mesa 26.3 has officially incorporated support for Intel's Nova Lake P's new 64-bit GPU mode, a significant update for engineers working with Intel's graphics technologies. This change, merged overnight into Mesa's Git repository, involves a series of 49 patches targeting the Intel shader compiler code and the ANV Vulkan driver. These updates are crucial as they prepare the groundwork for Intel's upcoming Nova Lake P graphics, which will fundamentally shift the way shader addressing is handled.
Historically, Intel's graphics relied on programming the STATE_BASE_ADDRESS with 64-bit base addresses, while shaders utilized a 32-bit address. This required hardware to compute the full 64-bit address by adding it to the base address of the buffer's heap type. However, this methodology changes with the introduction of GFX35 and beyond, where 64-bit addresses are now directly supported by the Execution Units (EUs). The Nova Lake P GPU, equipped with integrated Xe3P graphics, is the first to offer this 64-bit support, allowing engineers to select the addressing mode via a bit in the STATE_BASE_ADDRESS. Future Intel GPUs will exclusively support this new 64-bit mode.
While the current merge focuses on the Intel compiler code and ANV Vulkan driver, a follow-up pull request is expected to extend support to the Intel Iris Gallium3D (OpenGL) driver. Notably, the patches offer little in the way of detailed explanations, so further insights into the NVL-P graphics changes are anticipated once the Core Ultra Series 4 hardware becomes available.
This update does not impact the other Nova Lake variants, as Mesa already treats Nova Lake S, U, H, and HX as stable within the open-source Linux graphics driver stack. For engineers and sysadmins, this development signals a need to prepare for the incoming 64-bit addressing paradigm, especially for those planning to work with future Intel graphics solutions.