Re:Looking Ahead at Intel's Xe3 GPU Architecture
by adrian_b on Friday March 21, 2025 @11:02AM
(#43436531)
While the AMD ISA documentation has been slightly improving during the last years, so the document about RDNA 3.5 is noticeably better than older documents, Intel has failed to publish the documentation for the latest Xe versions, even if in the past its GPU documentation was much better than that of AMD.
Intel still has to publish several additional manuals, to cover Xe in Meteor Lake, Xe in Arrow Lake H, Xe 2 in Lunar Lake and Xe 2 in discrete GPUs, and then Xe 3 in Panther Lake, to bring their documentation up to date.
You can extract most of the GPU information from the open-source Linux drivers and LLVM compiling back-end, but this is a poor substitute for actual GPU ISA documentation.
Intel still has to publish several additional manuals, to cover Xe in Meteor Lake, Xe in Arrow Lake H, Xe 2 in Lunar Lake and Xe 2 in discrete GPUs, and then Xe 3 in Panther Lake, to bring their documentation up to date.
You can extract most of the GPU information from the open-source Linux drivers and LLVM compiling back-end, but this is a poor substitute for actual GPU ISA documentation.