Earlier this year we began seeing patches for AMD GFX1170 graphics IP labeled as "RDNA 4m" and that was then completed with also adding GFX1171 and GFX1172 as additional targets for the AMDGPU LLVM compiler back-end and AMDGPU kernel driver.
Merged today for Mesa 26.3 is now adding the GFX1171 target to Mesa 26.3 for the RADV and RadeonSI drivers...